component
SN74HC682DWR
Public Made by Adomby adom
Texas Instruments Digital Comparators, SOIC-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN74HC682DWR
Texas Instruments · Digital Comparators · SOIC-20
SN74HC682DWR from Texas Instruments, in a SOIC-20. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | P>Q | output | Active-low output that is low only when word P is greater than word Q; high otherwise. |
| 2 | P0 | input | Bit 0 of data word P, compared with Q0; CMOS input held at VCC or GND when unused. |
| 3 | Q0 | input | Bit 0 of data word Q, compared with P0; has a 100-kΩ pullup resistor to VCC. |
| 4 | P1 | input | Bit 1 of data word P, compared with Q1; CMOS input held at VCC or GND when unused. |
| 5 | Q1 | input | Bit 1 of data word Q, compared with P1; has a 100-kΩ pullup resistor to VCC. |
| 6 | P2 | input | Bit 2 of data word P, compared with Q2; CMOS input held at VCC or GND when unused. |
| 7 | Q2 | input | Bit 2 of data word Q, compared with P2; has a 100-kΩ pullup resistor to VCC. |
| 8 | P3 | input | Bit 3 of data word P, compared with Q3; CMOS input held at VCC or GND when unused. |
| 9 | Q3 | input | Bit 3 of data word Q, compared with P3; has a 100-kΩ pullup resistor to VCC. |
| 10 | GND | power_in | Ground reference pin. |
| 11 | P4 | input | Bit 4 of data word P, compared with Q4; CMOS input held at VCC or GND when unused. |
| 12 | Q4 | input | Bit 4 of data word Q, compared with P4; has a 100-kΩ pullup resistor to VCC. |
| 13 | P5 | input | Bit 5 of data word P, compared with Q5; CMOS input held at VCC or GND when unused. |
| 14 | Q5 | input | Bit 5 of data word Q, compared with P5; has a 100-kΩ pullup resistor to VCC. |
| 15 | P6 | input | Bit 6 of data word P, compared with Q6; CMOS input held at VCC or GND when unused. |
| 16 | Q6 | input | Bit 6 of data word Q, compared with P6; has a 100-kΩ pullup resistor to VCC. |
| 17 | P7 | input | Bit 7 of data word P, compared with Q7; CMOS input held at VCC or GND when unused. |
| 18 | Q7 | input | Bit 7 of data word Q, compared with P7; has a 100-kΩ pullup resistor to VCC. |
| 19 | P=Q | output | Active-low output that is low only when word P equals word Q; high otherwise. |
| 20 | VCC | power_in | Supply voltage, 2 V to 6 V recommended; bypass with a 0.1-μF capacitor close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74HC682DWR - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20 (KiCad packages3D, STEP)
- 3D model files:
sn74hc682dwr-etched.step/sn74hc682dwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hc682dwr.step/sn74hc682dwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (19 pp, sha256
8425fad178567f78, retrieved 2026-10-08, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).