5 Tips To Make Windows 7 Faster

Install Dell drivers and utilities

 Notice: Some devices may not work if they are not installed in the proper order, please      use the list below and install the drivers in the proper order.

1. Desktop System Software (DSS) or Notebook System Software (NSS) - A vital utility that provides critical updates and patches for the operating system. If you are reinstalling the operating system or updating all the computer’s drivers, it is imperative that this software be installed first. Currently, the DSS and NSS are not required for systems with Windows Vista installed.
2. Chipset - Helps Windows control system board components and controllers. 
3. Video Adapter - Enhances video performance. 
4. Network Interface Card (NIC) - Enhances the network controller for Internet or network access. 
5. Audio Adapter - Enables and enhances the audio controller. 
6. Modem - Allows dialup capability. 
7. Wireless Network Card - Enables and enhances the wireless network controller. 
8. Touchpad, Pointer, Trackstick, Mice, and Keyboards - Enhances the pointing device features. 
9. Other Devices 
   • Bluetooth® Module
   • Dell Wireless Mobile Broadband Cards
   • PCMCIA/Smartcard controller

ML4824: A Novel Method for an Off-Line PFC-PWM Combo Controller

   One  of the most undesirable phenomena experienced by utility companies is the high harmonic content  of the line current. The harmonic content  of this line current  tends to cause  transformer overheating at the substations,  which are responsible for providing power  to all sectors of a given area. For three-phase distribution,  neutral  currents will flow in the presence of these harmonics. For single- phase  distribution,  the narrow  conduction angle demanded by capacitive input filters in switching  power converters  causes  high harmonic content  in the current waveform,  resulting in lower operating  efficiency.

   A viable solution  to this problem  is the inclusion  of a power  factor correction (PFC) stage to facilitate more efficient power  usage as well as lowering  the harmonic content  of the line current. The most popular  topology  for this task is the switched-mode boost converter.  Here the boost converter  stage is inserted  between the input rectifier and the bulk storage capacitor. This forces the input current  to be in phase  with the input voltage and provides  a boosted  D.C. voltage reservoir for the

following power  stage.

   Micro Linear‘s ML4824 Combo  Controller  IC is an integrated  solution  for systems benefitting  from the advantages made  possible by synchronizing the 2 cascaded power  stages. In this application note the differences  between the traditional  combo  modulation scheme  (unsynchronized or trailing edge modulation)  and the ML4824’s leading/trailing edge modulation scheme are explained. A typical application is shown  and test results are compared with the traditional  approach. Then, a detailed  look is taken inside the ML4824 and key design formulas are reviewed  which  will enable  users to begin their own design.

For further information, view application note online:  ML4824 (pdf | 12 pages)

2SA2113: Medium Power Transistor

Features

1) High speed switching. (Tf : Typ. : 20ns at IC = -2A)

2) Low saturation voltage, typically

(Typ. : -200mV at IC = -1A, IB = -0.1A)

3) Strong discharge power for inductive load and capacitance load.

4) Complements the 2SC5916

Applications

     Low frequency amplifier

     High speed switching

  Structure

       PNP Silicon epitaxial planar transistor

For further information, view it online: 2SA2113 (pdf | 4 pages)

X28C256: 5 Volt, Byte Alterable EEPROM 32K x 8 Bit

DESCRIPTION

The X28C256 is an 32K x 8 E2PROM, fabricated with Xicor’s proprietary, high performance, floating gate CMOS technology. Like all Xicor programmable non- volatile memories the X28C256 is a 5V only device. The X28C256 features the JEDEC approved pinout for byte- wide memories, compatible with industry standard RAMs.

The X28C256 supports a 64-byte page write operation, effectively providing a 78 s/byte write cycle and en- abling the entire memory to be typically written in less than 2.5 seconds. The X28C256 also features DATA and Toggle Bit   Polling, a system software support scheme used to indicate the early completion of a write cycle. In addition, the X28C256 includes a user-optional software data protection mode that further enhances Xicor’s hardware write protect capability.

Xicor E2PROMs are designed and tested for applications requiring extended endurance. Inherent data re- tention is greater than 100 years.

FEATURES

• Access Time:  150ns

• Simple Byte and Page Write

— Single 5V Supply

— No External High Voltages or VPP Control Circuits

— Self-Timed

— No Erase Before Write

— No Complex Programming Algorithms

— No Overerase Problem

• Low Power CMOS:

— Active:  60mA

— Standby: 200  A

• Software Data Protection

— Protects Data Against System Level Inadvertent Writes

• High Speed Page Write Capability

• Highly Reliable Direct Write™ Cell

— Endurance: 100,000 Write Cycles

— Data Retention: 100 Years

• Early End of Write Detection

— DATA Polling

— Toggle Bit Polling

For further information, view it online: X28C256 (pdf | 24 pages) 

AN5265: TV Sound Output Circuit

The AN5265 is a semiconductor integrated circuit designed for TV sound output circuit.

Features

   • DC volume adjustment method employed. Controlled with DC voltage.

   • Fin-attached 9-lead SIP package employed

For further information, view it online: AN5265 (pdf | 2 pages) 

25 Awesome iPhone Tips and Tricks

Whether you're a seasoned user or brand new to the iPhone world, chances are you're probably not using your smartphone to its fullest.

Don't worry, you're not alone, as these pocket-sized computers boast many hundreds of features buried in the operating system.

And so here we share a number of our favorite iPhone tips and tricks, some of which you may know already. Hopefully there's a good number of ones you aren't aware of yet. Most of these following 25 suggestions will work with all versions of the iPhone, but be sure to have the latest software installed (iOS 5.1).

OK, here we go:

Take a photo with your headphone cord: Now that you can use the volume up or down buttons to snap a photo, steady your hand while framing up the photo and when you're ready to take the picture, press the button on the cord so it won't shake the iPhone. Voila!

Dry out a wet iPhone: You're not the first one to drop an iPhone in a toilet or sink. If this happens, don't turn it on as you can damage the smartphone by short-circuiting it. Lightly towel dry the phone. Don't use a hairdryer on the phone as it can further push moisture into areas that aren't wet. Submerge the iPhone in a bowl or Ziploc bag of uncooked white rice and leave it overnight. If you have it, try using a desiccant packet you might find with a new pair of shoes or leather purse.

Dismiss suggested words: If you're typing an email or note and the virtual keyboard is suggesting the correct spelling of the word — and you don't want to accept it — you don't need to tap the tiny "X" at the end of the word in question. Simply tap anywhere on the screen to close the suggestion box.

Take photos faster: Even if your iPhone is locked you can double-tap on the Home button and you'll see a camera icon you can tap to open the camera immediately. Now you can use the volume up button to snap the photo, too. You can also use the volume up on the headphone cord to take a photo (if you want to) and pinch the screen to zoom instead of using the slider bar.

Use location-based reminders: You probably know Siri can be used to set a reminder, like saying "Siri, remind me to call mom at 4pm today." But did you know you can set location-based reminders on your iPhone 4S? Say "Remind me to call mom when I leave here" or "Remind me to call mom when I get home" and you'll be notified accordingly.

Get word definitions: Apple has recently added a built-in dictionary and you can access it in most apps that let you select a word. Simply press and hold on a word — such as in an email, reminder, iBooks, and so on — and you'll see a pop-up option for "Define."

Revive a frozen iPhone: If your smartphone freezes on you and pressing the Sleep/Wake button on top of the device doesn't do anything, don't panic. Instead, press and hold the Home button and the Sleep/Wake button at the same time. You'll be prompted to swipe the "Slide to Power Off" tab. This so-called "hard reset" resuscitates the frozen iPhone. You'll first need to wait through a full shut down and restart.

Get more done in less time: You can create shortcuts to words and phrases you use a lot, such as Northern California Association for Employment in Education. In Settings, go to General, then Keyboard, and select Add New Shortcut. Now you can add new words or phrases and assign shortcuts to them (such as "NCAEE," in the above example, and it'll type out the full word each time.

See a 6-day weather forecast: If you're one of the many weather junkies out there, you probably know you can swipe down the iOS device's screen and you'll see the Notifications center. Weather will be at the top, but did you know you can swipe to the left or right and you'll toggle between current conditions and a 6-day forecast? Plus, jump to the Weather app by tapping anywhere on the weather bar inside Notifications screen.

Select URL domains faster: When typing a website address in Safari, you don't have to type the ".com." For example, you can type "yahoo" in the URL box to get to yahoo.com. On a related note, you can press and hold down the .com button and you'll see a list of alternatives to choose, such as .net, .org and .edu.

Make your own ringtone: Don't settle with the ringtones provided by Apple and you need not pay your carrier for more of them. As the name suggests, the free Ringtone Maker app lets you take a clip from your favorite songs and make ringtones out of them in seconds.

Feel and see when people call: Apple has added a number of accessibility features to iOS 5, specifically designed to assist those with hearing, vision, mobility and other disabilities. For example, those who are hearing impaired might opt to have the LED flash when a call comes in. If you're seeing impaired, you could set a unique vibration pattern for different people in your Contacts, so you know who's calling.

Find your lost iPhone: As long as you sign up in advance, the free Find My iPhone app will help you locate your device on a map (on your computer or other iOS device). You can display a message or initiate a loud ring (in case it's under the cushions), or remotely lock or wipe its data.

Save photos in Safari: You're surfing the web in Safari and stumble upon a photo you'd like to save. Simply press and hold on a photo when on a website and you'll be prompted with a menu asked if you'd like to "Save Image." Once the photo is saved, you can view it offline, email it or set it as wallpaper.

Take an iPhone screen grab: On a related note, if you want to take a screenshot of a website or application, press down on the Home button and tap the Sleep button. You'll hear the camera click, see a white flash and the screenshot will be saved to your Camera Roll.

Get new sounds: It's been a long time coming, but Apple has added the ability to select custom tones for incoming text messages, new emails, voicemails, tweets, calendar alerts, reminders and more. You can select something you like from within the Sounds menu. You'll also notice you can scroll to the top of this list of sounds and you'll see a "Buy More Tones" option, which takes you to iTunes.

Zip to the top of the page: In Mail, Safari, Contacts and other apps, simply tap the status bar at the top of the screen — the area that displays time, battery and cell bars — to jump back to the top quickly.

Prolong your battery: Speaking of the battery, here's how to squeeze more life out of your iPhone between charges. Turn down the brightness of your screen, turn off wireless radios you don't use (such as GPS, Wi-Fi or Bluetooth) and reduce the number of apps with info you have "pushed" to your phone. Also, make sure you lock it before putting in your pocket, purse or backpack or else it could turn on and drain the battery.

Spread out the keyboard for easier typing: Here's a tip for iPad users: If you like typing while holding the tablet, rather than stretch your fingers or thumbs for those middle letters like G, H, Y or B, you can drag the keyboard to each side of the screen to separate it into two, allowing you to easily type while holding it.

Learn some gestures: Close any app ridiculously fast by putting your four fingers and thumb stretched on the screen and pinch inwards. Sweet! You can also magnify what's on your iPhone screen with a three-finger tap. You'll first need to go to Settings, General, Accessibility, and select the various gestures options here.

Create an "app" out of a website you visit often: To add a website to your Home screen, just visit the webpage in Safari and at the top of the screen, tap the Go To icon and select "Add to Home Screen."

Create a music playlist on the fly: You no longer need a computer to create a playlist. In the Music app, tap Playlists, then select Add Playlist and give it a name ("Marc's Workout Mix"). Now, tap any song (or video) to add it to the playlist. You can add individual songs, entire albums, or all songs by a particular artist.

Don't waste your day deleting messages individually: You can delete unwanted emails en masse rather than deleting one at a time. In your Inbox, simply click the Edit button and check off the emails you want to delete with your finger and then choose Delete.

Keep track of your texting limits: If you don't have the best texting plan and don't want to unnecessarily pay to send more texts than you need, here's a tip to turn on the character count in the Messages app. Enable this in the Settings>Message option to keep an eye on your word count. Usually, your one text becomes two after 160 characters.

Mirror your iPhone with your TV: If you own an Apple TV, you can instantly and wirelessly share exactly what's on your iPhone 4S or second- and third-generation iPad with your HDTV, connected to an Apple TV — such as games, apps or videos. Simply double-tap the Home button, swipe all the way to the right and select AirPlay Mirroring.

(You have a favorite iPhone tip to share? Feel free to leave a comment below. Thanks !!! :)

Make Solar Cells Using Transistor 2N3055

It's easy to cut open a power transistor like the 2N3055 to expose the NPN silicon material inside to make a solar cell. When exposed to sunlight, or household lights, it conducts electricity. The N-type and P-type materials work like a solar cell. The best way is from the Base to the Collector though from both the Base and Emitter combined and then to the Collector also works well. The voltage and current aren't much but with just a few of them in series you can power a small 1.5 volt calculator.

XC2S Series: The Spartan®-II FPGA family

The Spartan®-II Field-Programmable Gate Array family gives users high performance, abundant logic resources, and a rich feature set, all at an exceptionally low price. The six-member family offers densities ranging from 15,000 to 200,000 system gates. System performance is supported up to 200 MHz. Features include block RAM (to 56K bits), distributed RAM (to 75,264 bits), 16 selectable I/O standards, and four DLLs. Fast, predictable interconnect means that successive design iterations continue to meet timing requirements.The Spartan-II family is a superior alternative to mask-programmed ASICs. The FPGA avoids the initial cost, lengthy development cycles, and inherent risk of conventional ASICs. Also, FPGA programmability permits design upgrades in the field with no hardware replacement necessary (impossible with ASICs).

Features

• Second generation ASIC replacement technology
    - Densities as high as 5,292 logic cells with up to 200,000 system gates
    - Streamlined features based on Virtex® FPGA  architecture
    - Unlimited reprogrammability
    - Very low cost
    - Cost-effective 0.18 micron process
• System level features
    - SelectRAM™ hierarchical memory:
        · 16 bits/LUT distributed RAM
        · Configurable 4K bit block RAM
        · Fast interfaces to external RAM
    - Fully PCI compliant
    - Low-power segmented routing architecture
    - Full readback ability for verification/observability
    - Dedicated carry logic for high-speed arithmetic
    - Efficient multiplier support
    - Cascade chain for wide-input functions
    - Abundant registers/latches with enable, set, reset
    - Four dedicated DLLs for advanced clock control
    - Four primary low-skew global clock distribution nets
    - IEEE 1149.1 compatible boundary scan logic
• Versatile I/O and packaging
    - Pb-free package options
    - Low-cost packages available in all densities
    - Family footprint compatibility in common packages
    - 16 high-performance interface standards
    - Hot swap Compact PCI friendly
    - Zero hold time simplifies system timing
• Core logic powered at 2.5V and I/Os powered at 1.5V, 2.5V, or 3.3V
• Fully supported by powerful Xilinx® ISE® development
system
    - Fully automatic mapping, placement, and routing
 
For further information please view it online: XC2S150 (pdf | 99 pages)

This Spartan-II FPGA data sheet is in four modules :
Module 1: Introduction and Ordering Information
    • Introduction
    • Features
    • General Overview
    • Product Availability
    • User I/O Chart
    • Ordering Information
 Module 2: Functional Description
    • Architectural Description
        - Spartan-II Array
        - Input/Output Block
        - Configurable Logic Block
        - Block RAM
        - Clock Distribution: Delay-Locked Loop
        - Boundary Scan
    • Development System
    • Configuration
        - Configuration Timing
    • Design Considerations
Module 3: DC and Switching Characteristics
    • DC Specifications
        - Absolute Maximum Ratings
        - Recommended Operating Conditions
        - DC Characteristics
        - Power-On Requirements
        - DC Input and Output Levels
    • Switching Characteristics
        - Pin-to-Pin Parameters
        - IOB Switching Characteristics
        - Clock Distribution Characteristics
        - DLL Timing Parameters
        - CLB Switching Characteristics
        - Block RAM Switching Characteristics
        - TBUF Switching Characteristics
        - JTAG Switching Characteristics
Module 4: Pinout Tables
    • Pin Definitions
    • Pinout Tables

74F139: High Speed, Dual 1-of-4 Decoder/Demultiplexer

The 74F139 is a high speed, dual 1-of-4 decoder/demultiplexer. This device has two independent decoders, each accepting two binary weighted inputs and providing four mutually exclusive active-Low outputs. Each decoder has an active-Low Enable. When Enable is High, every output is forced High. The Enable can be used as the Data input for a 1-of-4 demultiplexer application.

FEATURES

• Demultiplexing capability
• Two independent 1-of-4 decoders
• Multifunction capability

For further information please view it online: 74F139 (pdf | 4 pages)

IRF9540N: HEXFET® Power MOSFET

  Fifth Generation HEXFETs from International Rectifier utilize advanced processing techniques to achieve extremely low  on-resistance per silicon area.  This benefit, combined with the fast switching speed and ruggedized device design that HEXFET Power MOSFETs are well known for, provides the designer with an extremely efficient and reliable device for use in a wide variety of applications.

  The TO-220 package is universally preferred for all commercial-industrial applications at power dissipation levels to approximately 50 watts.  The low thermal resistance and low package cost of the TO-220 contribute to its wide acceptance throughout the industry.

FEATURES :

•          Advanced Process Technology
•      Dynamic dv/dt Rating
•       175°C Operating Temperature
•      Fast Switching
•      P-Channel
•       Fully Avalanche Rated

     For further information please view it online: IRF9540N (pdf | 9 pages)

IRFZ44N: Advanced HEXFET® Power MOSFETs 50 Watts

Advanced HEXFET® Power MOSFETs from International Rectifier utilize advanced processing techniques to achieve extremely low on-resistance per silicon area. This benefit, combined with the fast switching speed and ruggedized device design that HEXFET power MOSFETs are well known for, provides the designer with an extremely efficient and reliable device for use in a wide variety of applications.

The TO-220 package is universally preferred for all commercial-industrial applications at power dissipation levels to approximately 50 watts.   The low thermal resistance and low package cost of the TO-220 contribute to its wide acceptance throughout the industry.

FEATURE :

•  Advanced Process Technology
•  Ultra Low On-Resistance
•  Dynamic dv/dt Rating
•  175°C Operating Temperature
•  Fast Switching                                               
•  Fully Avalanche Rated

For further information please view it online: IRFZ44N (pdf | 8 pages)

TDA8783: 10-bit ADC for CCD cameras

The TDA8783 is a 10-bit analog-to-digital interface for CCD cameras. The device includes a correlated double sampling circuit, AGC and a low-power 10-bit. Analog-to-Digital Converter (ADC) together with its reference voltage regulator. The AGC and CDS have a bandwidth circuit controlled by on-chip DACs via a serial interface. A 10-bit DAC controls the ADC input clamp level. An additional 8-bit DAC is provided for additional system controls; its output voltage range is 1.4 V (p-p) which is available at pin OFDOUT.
FEATURES
• Correlated Double Sampling (CDS), AGC, 10-bit ADC and reference regulator included, adjustable bandwidth (CDS and AGC)
• Fully programmable via a 3-wire serial interface
• Sampling frequency up to 40 MHz
• AGC gain from 4.5 to 34.5 dB (in 0.1 dB steps)
• CDS programmable bandwidth from 4 to 120 MHz
• AGC programmable bandwidth from 4 to 54 MHz
• Standby mode available for each block for power saving applications 20 mW (typ.)
• 6 dB fixed gain analog output for analog iris control
• 8-bit and 10-bit DAC included for analog settings
• Low power consumption of only 483 mW (typ.)
• 5 V operation and 2.5 to 5.25 V operation for the digital outputs
• TTL compatible inputs, TTL and CMOS compatible outputs.
APPLICATIONS
• CCD camera systems.
For further information please view it online: TDA8783 (pdf | 28 pages)

IL710: High Speed/High Temperature Digital Isolators

Features:
• +5 V/+3.3 V CMOS / TTL Compatible
• High Speed: 150 Mbps Typical (IL710S)
• High Temperature: −40°C to +125°C (IL710T)
•  2500 VRMS Isolation (1 min.)
•  300 ps Typical Pulse Width Distortion (IL710S)
•  100 ps Typical Pulse Jitter
•  4 ns Typical Propagation Delay Skew
•  10 ns Typical Propagation Delay
•  30 kV/μs Typical Common Mode Transient Immunity
• Low EMC Footprint
•  8-pin MSOP, SOIC, and PDIP Packages
• UL1577 and IEC 61010-2001 Approved
Applications:
•  Digital Fieldbus
•  RS-485 and RS-422
•  Multiplexed Data Transmission
•  Data Interfaces
•  Board-to-Board Communication
•  Digital Noise Reduction
•  Operator Interface
•  Ground Loop Elimination
•  Peripheral Interfaces
•  Serial Communication
•  Logic Level Shifting
For further information please view it online: IL710 (pdf | 13 pages)

2N3055: Silicon High-Power Transistor

....PowerBase(TM) complementary transistors designed for high power audio, stepping motor and other linear applications. These devices can also be used in power switching circuits such as relay or solenoid drivers, dc-to-dc converters, inverters, or for inductive loads requiring higher safe operating area than the 2N3055 and MJ2955.

For further information please view it online: 2N3055 (pdf | 8 pages)

DS1023: 8-Bit Programmable Timing Element

FEATURES
- Step sizes of 0.25 ns, 0.5 ns, 1 ns, 2 ns, 5 ns
- On-chip reference delay
- Configurable as delay line, pulse width modulator, or free-running oscillator
- Can delay clocks by a full period or more
- Guaranteed monotonicity
- Parallel or serial programming
- Single 5V supply
- 16-pin DIP or SOIC package
For further information please view it online: DS1023 (pdf | 16 pages) 

CXA1390: S/H and AGC for CCD Camera

Description:
The CXA1390AQ/AR are CCD camera's signal processing ICs which extract signals from the CCD output. These bipolar ICs perform correlated double sampling. AGC, color separation, high luminance detection and others. Additionary, these ICs are not affected by irregular pulses which occure during the CCD shutter mode.
Featuers:
• Pin compatible upgraded version of CXA1390Q/R which can be swapped out while using same peripheral chips
• Almost completely corrects irregular pulses and their negative affects
• Correlated double sampling function alllows for the suppression of low band noise in the CCD output
• AGC amplifier, which has High S/N ratio and wide gain control range, enhances the camera sensitivity
• Output for iris adjustment. High luminance detection output
• Usage of Vg (regulator) output allows for the formation of IRIS and AGC LOOP which are not affected by supply voltage functation
Application:
S/H and AGC for CCD camera
Structure:
Bipolar silicon monolithic IC
For further information please view it online: CXA1390AQ/AR (pdf | 17 pages) 

ADUM2400: Quad-Channel Digital Isolators

FEATURES

Low power operation

5 V operation

    1.0 mA per channel maximum @ 0 Mbps to 2 Mbps

    3.5 mA per channel maximum @ 10 Mbps

    31 mA per channel maximum @ 90 Mbps

3 V operation

    0.7 mA per channel maximum @ 0 Mbps to 2 Mbps

    2.1 mA per channel maximum @ 10 Mbps

    20 mA per channel maximum @ 90 Mbps

Bidirectional communication

3 V/5 V level translation

High temperature operation: 105°C

High data rate: dc to 90 Mbps (NRZ)

Precise timing characteristics

     2 ns maximum pulse width distortion

     2 ns maximum channel-to-channel matching

High common-mode transient immunity: >25 kV/μs

Output enable function

16-lead SOIC wide body package version (RW-16)

16-lead SOIC wide body enhanced creepage version (RI-16)

Safety and regulatory approvals (RI-16 package)

    UL recognition: 5000 V rms for 1 minute per UL 1577

    CSA Component Acceptance Notice #5A

       IEC 60601-1: 250 V rms (reinforced)

         IEC 60950-1: 400 V rms (reinforced)

    VDE Certificate of Conformity

         DIN V VDE V 0884-10 (VDE V 0884-10):2006-12

         VIORM = 846 V peak

For further information please view it online: ADUM2400 (pdf | 24 pages) 

IL715: High Speed/High Temperature Four-Channel Digital Isolator

Features :
•  +5 V / +3.3 V CMOS/TTL Compatible 
• High Speed: 110 Mbps 
• High Temperature: −40°C to +125°C (IL715T/IL716T/IL717T) 
•  2500 VRMS Isolation (1 min.) 
•  2 ns Typical Pulse Width Distortion 
•  100 ps Typical Pulse Jitter 
•  4 ns Typical Propagation Delay Skew 
•  10 ns Typical Propagation Delay 
•  30 kV/µs Typical Common Mode Rejection 
• Low EMC Footprint 
•  2 ns Channel-to-Channel Skew 
•  0.3" and 0.15" 16-pin SOIC Packages 
• UL1577 and IEC 61010-2001 Approved
Applications :
•  ADCs and DACs 
•  Digital Fieldbus 
•  RS-485 and RS-422 
•  Multiplexed Data Transmission 
•  Data Interfaces 
•  Board-to-Board Communication 
•  Digital Noise Reduction 
•  Operator Interface 
•  Ground Loop Elimination 
•  Peripheral Interfaces 
•  Parallel Bus 
•  Logic Level Shifting
 
For further information please view it online:  IL715/IL716/IL717 (pdf | 13 pages)

2SB921: PNP Epitaxial Planar Silicon Transistor

Application : 
Large current switching of relay drivers, high-speed inverters, converters.

For further information please view it online: 2SB921 (pdf | 4 pages)

6N139: Low Input Current, High Gain Optocoupler

FEATURES :
High Current Transfer Ratio – 2000% Typical (4500% Typical for HCNW139/138)

• Low Input Current Requirements – 0.5 mA

• TTL Compatible Output – 0.1 V VOL Typical

• Performance Guaranteed over Temperature 0°C to 70°C

• Base Access Allows Gain Bandwidth Adjustment

• High Output Current  – 60 mA

• Safety Approval

UL Recognized – 2500 V rms

for 1 Minute and 5000 V rms*

for 1 Minute per UL 1577

CSA Approved

VDE 0884 Approved with

VIORM = 1414 V peak for HCNW139 and HCNW138 BSI Certified (HCNW139 and HCNW138)

• Available in 8-Pin DIP or SOIC-8 Footprint or Widebody Package

•MIL-STD-1772 Version Available (HCPL-5700/1)

APPLICATION :

•  Ground Isolate Most Logic Families – TTL/TTL, CMOS/TTL, CMOS/CMOS, LSTTL/TTL, CMOS/LSTTL
•  Low Input Current Line Receiver
•  High Voltage Insulation (HCNW139/138)
•  EIA RS-232C Line Receiver
•  Telephone Ring Detector
•  117 V ac Line Voltage Status Indicator – Low Input Power Dissipation
•  Low Power Systems – Ground Isolation

DESCRIPTION :
        These high gain series couplers use a Light Emitting Diode and an integrated high gain photodetector to provide extremely high current transfer ratio between input and output. Separate pins for the photodiode and output stage result in TTL compatible saturation voltages and high speed operation. Where desired the VCC and VO terminals may be tied together to achieve conventional photodarlington operation. A base access terminal allows a gain bandwidth adjustment to be made.
For further information please view it online: 6N139 (pdf | 15 pages)

2N7000: N-Channel Enhancement Mode Field Effect Transistor

FEATURES :

• Efficient high density cell design approaching (3 million/in2)
• Voltage  controlled small  signal  switch 
• Rugged
• High saturation current
• Low RDS  (ON)

For further information please view it online: 2N7000 (pdf | 10 pages)