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Contents

README

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CY74FCT541ATSOCT

Texas Instruments · Buffers, Drivers, Receivers, Transceivers · SOIC-20-300mil

CY74FCT541ATSOCT from Texas Instruments, in a SOIC-20-300mil. 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 OEA input Active-low output enable control input for 3-state outputs.
2 D0 input Data input for bit 0, buffered to output O0 when outputs are enabled.
3 D1 input Data input for bit 1, buffered to output O1 when outputs are enabled.
4 D2 input Data input for bit 2, buffered to output O2 when outputs are enabled.
5 D3 input Data input for bit 3, buffered to output O3 when outputs are enabled.
6 D4 input Data input for bit 4, buffered to output O4 when outputs are enabled.
7 D5 input Data input for bit 5, buffered to output O5 when outputs are enabled.
8 D6 input Data input for bit 6, buffered to output O6 when outputs are enabled.
9 D7 input Data input for bit 7, buffered to output O7 when outputs are enabled.
10 GND power_in Ground return path.
11 O7 tri_state 3-state output for data bit 7; high-impedance when OEA or OEB is high, otherwise reflects D7.
12 O6 tri_state 3-state output for data bit 6; high-impedance when OEA or OEB is high, otherwise reflects D6.
13 O5 tri_state 3-state output for data bit 5; high-impedance when OEA or OEB is high, otherwise reflects D5.
14 O4 tri_state 3-state output for data bit 4; high-impedance when OEA or OEB is high, otherwise reflects D4.
15 O3 tri_state 3-state output for data bit 3; high-impedance when OEA or OEB is high, otherwise reflects D3.
16 O2 tri_state 3-state output for data bit 2; high-impedance when OEA or OEB is high, otherwise reflects D2.
17 O1 tri_state 3-state output for data bit 1; high-impedance when OEA or OEB is high, otherwise reflects D1.
18 O0 tri_state 3-state output for data bit 0; high-impedance when OEA or OEB is high, otherwise reflects D0.
19 OEB input Active-low output enable control input for 3-state outputs.
20 VCC power_in Supply voltage; 4.75 V to 5.25 V for CY74FCT541AT operating range.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-20-300mil
Category Logic
Pins 20

CAD (KiCad official)

  • Symbol: CY74FCT541ATSOCT
  • Footprint: Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm
  • 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
  • 3D model files: cy74fct541atsoct-etched.step / cy74fct541atsoct-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cy74fct541atsoct.step / cy74fct541atsoct.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (13 pp, sha256 fa5ec40367224004, retrieved 2026-09-27, tier: lcsc)
  • 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