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SN74LV161ADR

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by adom

Texas Instruments Counters, Dividers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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SN74LV161ADR

Texas Instruments · Counters, Dividers · SOIC-16

SN74LV161ADR from Texas Instruments, in a SOIC-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 CLR input Asynchronous clear input; low level sets all outputs low.
2 CLK input Clock input; rising edge clocks flip-flops for counting and preset.
3 A input Preset data input A.
4 B input Preset data input B.
5 C input Preset data input C.
6 D input Preset data input D.
7 ENP input Count enable input P; must be high with ENT to enable counting.
8 GND power_in Ground.
9 LOAD input Synchronous load input; low level loads preset data on next clock pulse.
10 ENT input Count enable input T and ripple-carry feed-forward; must be high to enable counting and RCO.
11 QD output Counter output bit D.
12 QC output Counter output bit C.
13 QB output Counter output bit B.
14 QA output Counter output bit A.
15 RCO output Ripple carry output; produces high-level pulse when count reaches maximum.
16 VCC power_in Positive supply voltage; 2 V to 5.5 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74LV161ADR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: sn74lv161adr-etched.step / sn74lv161adr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74lv161adr.step / sn74lv161adr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (28 pp, sha256 964a83f61a59c69c, retrieved 2026-09-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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