This is an old revision of the document!
WANT MORE?? Dont forget to see everything else in the Part selector index!
General notes:
Hopefully we (and other nice people) will be able to keep the distributor links current. But if we cant you can always search at http://www.findchips.com or http://www.octopart.com for other distributors such as Arrow, Avnet, Future, Jameco, etc. If you have a non-US distributor you use please add the links below so people outside the US can buy from their local shops.
Please see vreg for regulators & other power converters
Op amps are like the flavor crystals of electronics!
Some notes on op-amps:
Image | Part # & Datasheet | Description | Package notes | Op-amp notes | Distributor | Eagle lib. |
---|---|---|---|---|---|---|
![]() | TS922IN or TS922AIN | Rail-to-rail low voltage dual opamp | Dual '082' style | 2.7-12V supply Rail-to-rail in & out 50+mA output current | Digikey Mouser | linear:tl082 |
" | LM741CN | Ye Olde Op amp. This is the 'classic' first internally compensated op-amp. They arent very good but were so popular in older designs, you'll run across them | Single '741' style | 10V-46V supply not rail-to-rail | Digikey Mouser | linear:*741 |
" | Tl082CN | A nice general purpose dual opamp w/JFET inputs | Dual '082' style | 6-36V supply Not rail-to-rail | Digikey Mouser | linear:tl082 |
" | Tl084CN | Quad opamp with JFET inputs (effectively two TL082's) | Quad '084' style | 6-36V supply Not rail-to-rail | Digikey Mouser | linear:tl084 |
" | AD620 | An instrumentation amplifier that can be programmed for gains of 1-10,000 with a single resistor. | 8 pin DIP or SOIC | ±2.3 V to ±18 V, Low noise | Digikey | analog-devices:AD620 |
PDIP-14/no image yet | LM324N | General purpose quad opamp - same pinout as TL084, but higher PSRR and lower minimum supply voltage. BJT inputs. | Quad '084' style | 3-32V supply Not rail-to-rail | Digikey Mouser | linear:lm324 |
Some notes on timer chips:
Some notes on 74' logic chips:
Image | Part # & Datasheet | Description | Distributor | Eagle library |
---|---|---|---|---|
![]() | 74HC595N | 8-bit serial-to-parallel latch Can be cascaded for controlling dozens of digital outputs | Mouser Digikey | |
![]() | TPIC6C596N | Just like the 74'595 but is the current sinking version of the 74HC595 Specifically for driving lots of LEDs | Mouser Digikey | |
![]() | 74HC165N | 8-bit parallel-to-serial latch Can be cascaded for reading dozens of digital inputs | Digikey Mouser | |
![]() | 74AHC125N | Tri-stateable buffer, 5V compliant We use these for logic level shifting 5v → 3v | Mouser | 74xx:74*125 |
![]() | CD4050 | 6-channel level shifter, 5V compliant We use these for logic level shifting 5v → 3v | Mouser Digikey | 40xx:4050N |
![]() | TXB0108 | Bi-directional level shifter w/auto-detection | Digikey Mouser | adafruit:TXB0108PWR |
Notes on EEPROMS:
Image | Part # & Datasheet | Description | Distributor | Eaglie lib |
---|---|---|---|---|
![]() | L293D or L293DN | 2 H-bridges w/built-in diodes 0.6A per channel 4V-36V 1 stepper / 2 DC motors / 4 solenoids | Mouser Digikey Digikey Jameco Allied Arrow Avnet | st-microelectronics:L293D |
![]() | SN754410N | 2 H-bridges w/ESD diodes 1 A per channel 4V-36V 1 stepper / 2 DC motors / 4 solenoids | Mouser Digikey | st-microelectronics:L293D |
'multiwatt' package | L298N | 2 H-bridges 2.5+ Amp per channel 4V-48V | Digikey Mouser | st-microelectronics:L298 |
Image | Part # & Datasheet | Description | Distributor | Eaglie lib |
---|---|---|---|---|
![]() | LM3914N (DIP) | Analog input 10-LED driver | Digikey Mouser |
Real time clocks!
Image | Part # and datasheet | Description | Distributor | Eagle lib. |
---|---|---|---|---|
![]() | DS1307 | Real time clock with battery backup | Mouser Digikey Maxim | Adafruit:DS1307 |
![]() | Maxim DS3231 | High precision real time clock with built in oscillator | Digikey Mouser Newark Maxim Direct | |
"" | NXP PCF2129 | Ditto, but only up to 4V | Digikey Mouser | microbuilder:pcf2129 |
Image | Part # and datasheet | Description | Distributor | Eagle lib. |
---|---|---|---|---|
![]() | MCP23008 | 8-bit input/output with pull-ups and interrupt support | Digikey Mouser | Adafruit:MCP23008 |
![]() | 74HCT4067 | 16:1 analog multiplexer w/60 ohm resistance | Digikey Mouser | 40xx:4067 |
![]() | 74HC4051 | 8:1 analog multiplexer | Digikey Mouser | 40xx:4051 |
![]() | 74HC4052 | Dual 4:1 analog mulitplexer | Digikey Mouser | 40xx:4052 |
These chips dont really exist anymore, but when they did it was AWESOME
Image | Part # and datasheet | Description | Distributor |
---|---|---|---|
20-dip | ICL8038 and MAX038 | "The MAX038 is (was) a high-frequency, precision function generator producing accurate, high-frequency triangle, sawtooth, sine, square, and pulse waveforms with a minimum of external components. The output frequency can be controlled over a frequency range of 0.1Hz to 20MHz | No longer made |
28-dip | SN76477 | "The SN76477 'complex sound generator' was a sound chip produced by Texas Instruments (TI). The chip came to market in 1978, and TI production of the part ceased some time ago. More recently, a 100% compatible version, identified as ICS76477, has been listed as 'in stock' by at least one US-based component stockist. The chip was typically used as a sound effects generator in arcade games & toys and for hobby projects." | No longer made |