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Contents

README

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SN74HC4040PWR

Texas Instruments · Counters, Dividers · TSSOP-16

SN74HC4040PWR from Texas Instruments, in a TSSOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 QL output Counter stage L output (Q12), one of the 12 asynchronous binary counter outputs available externally.
2 QF output Counter stage F output (Q6), one of the 12 asynchronous binary counter outputs available externally.
3 QE output Counter stage E output (Q5), one of the 12 asynchronous binary counter outputs available externally.
4 QG output Counter stage G output (Q7), one of the 12 asynchronous binary counter outputs available externally.
5 QD output Counter stage D output (Q4), one of the 12 asynchronous binary counter outputs available externally.
6 QC output Counter stage C output (Q3), one of the 12 asynchronous binary counter outputs available externally.
7 QB output Counter stage B output (Q2), one of the 12 asynchronous binary counter outputs available externally.
8 GND power_in Ground reference for the device.
9 QA output Counter stage A output (Q1), the first-stage output of the 12-bit binary counter, available externally.
10 CLK input Clock input; the count advances on a high-to-low transition at this pin.
11 CLR input Asynchronous clear input; a high level on CLR resets all 12 counter outputs low regardless of CLK.
12 QI output Counter stage I output (Q9), one of the 12 asynchronous binary counter outputs available externally.
13 QH output Counter stage H output (Q8), one of the 12 asynchronous binary counter outputs available externally.
14 QJ output Counter stage J output (Q10), one of the 12 asynchronous binary counter outputs available externally.
15 QK output Counter stage K output (Q11), one of the 12 asynchronous binary counter outputs available externally.
16 VCC power_in Supply voltage input; recommended operating range is 2 V to 6 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-16
Category Logic
Pins 16

CAD (KiCad official)

  • Symbol: SN74HC4040PWR
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: sn74hc4040pwr-etched.step / sn74hc4040pwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hc4040pwr.step / sn74hc4040pwr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (31 pp, sha256 f0e23e003f624672, retrieved 2026-09-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-sonnet-5 (text+vision), consensus claude-opus-4-8 (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).

Datasheet PDF