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SN74HC4040NSR
Public Made by Adomby adom
Texas Instruments Counters, Dividers, SO-16. 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
markdownSN74HC4040NSR
Texas Instruments · Counters, Dividers · SO-16
SN74HC4040NSR from Texas Instruments, in a SO-16. 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 | QL | output | Counter stage 12 output (QL), push-pull with ±4 mA drive at 5 V. |
| 2 | QF | output | Counter stage 6 output (QF), push-pull with ±4 mA drive at 5 V. |
| 3 | QE | output | Counter stage 5 output (QE), push-pull with ±4 mA drive at 5 V. |
| 4 | QG | output | Counter stage 7 output (QG), push-pull with ±4 mA drive at 5 V. |
| 5 | QD | output | Counter stage 4 output (QD), push-pull with ±4 mA drive at 5 V. |
| 6 | QC | output | Counter stage 3 output (QC), push-pull with ±4 mA drive at 5 V. |
| 7 | QB | output | Counter stage 2 output (QB), push-pull with ±4 mA drive at 5 V. |
| 8 | GND | power_in | Ground pin. |
| 9 | QA | output | Counter stage 1 output (QA), push-pull with ±4 mA drive at 5 V. |
| 10 | CLK | input | Clock input; the count advances on a high-to-low transition. |
| 11 | CLR | input | Clear input; a high level asynchronously clears the counter and resets all outputs low. |
| 12 | QI | output | Counter stage 9 output (QI), push-pull with ±4 mA drive at 5 V. |
| 13 | QH | output | Counter stage 8 output (QH), push-pull with ±4 mA drive at 5 V. |
| 14 | QJ | output | Counter stage 10 output (QJ), push-pull with ±4 mA drive at 5 V. |
| 15 | QK | output | Counter stage 11 output (QK), push-pull with ±4 mA drive at 5 V. |
| 16 | VCC | power_in | Supply voltage pin, 2 V to 6 V recommended, with a 0.1-µF bypass capacitor recommended. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SO-16 |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN74HC4040NSR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SO-16 (KiCad packages3D, STEP)
- 3D model files:
sn74hc4040nsr-etched.step/sn74hc4040nsr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hc4040nsr.step/sn74hc4040nsr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (31 pp, sha256
37e3a7374d27ddbf, retrieved 2026-10-03, 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).