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Contents

README

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SN74LVC541AQDWREP

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

SN74LVC541AQDWREP 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 OE1 input Active-low output enable; when OE1 or OE2 is high, all eight outputs are placed in the high-impedance state, and OE should be tied to VCC through a pullup resistor to ensure high impedance during power up or down.
2 A1 input Data input for channel 1; inputs accept voltages up to 5.5 V and can be driven from 3.3-V or 5-V devices.
3 A2 input Data input for channel 2; inputs accept voltages up to 5.5 V and can be driven from 3.3-V or 5-V devices.
4 A3 input Data input for channel 3; inputs accept voltages up to 5.5 V and can be driven from 3.3-V or 5-V devices.
5 A4 input Data input for channel 4; inputs accept voltages up to 5.5 V and can be driven from 3.3-V or 5-V devices.
6 A5 input Data input for channel 5; inputs accept voltages up to 5.5 V and can be driven from 3.3-V or 5-V devices.
7 A6 input Data input for channel 6; inputs accept voltages up to 5.5 V and can be driven from 3.3-V or 5-V devices.
8 A7 input Data input for channel 7; inputs accept voltages up to 5.5 V and can be driven from 3.3-V or 5-V devices.
9 A8 input Data input for channel 8; inputs accept voltages up to 5.5 V and can be driven from 3.3-V or 5-V devices.
10 GND power_in Ground reference for the device.
11 Y8 tri_state 3-state output for channel 8; high-impedance when OE1 or OE2 is high, rated IOH -24 mA and IOL 24 mA at VCC = 3 V.
12 Y7 tri_state 3-state output for channel 7; high-impedance when OE1 or OE2 is high, rated IOH -24 mA and IOL 24 mA at VCC = 3 V.
13 Y6 tri_state 3-state output for channel 6; high-impedance when OE1 or OE2 is high, rated IOH -24 mA and IOL 24 mA at VCC = 3 V.
14 Y5 tri_state 3-state output for channel 5; high-impedance when OE1 or OE2 is high, rated IOH -24 mA and IOL 24 mA at VCC = 3 V.
15 Y4 tri_state 3-state output for channel 4; high-impedance when OE1 or OE2 is high, rated IOH -24 mA and IOL 24 mA at VCC = 3 V.
16 Y3 tri_state 3-state output for channel 3; high-impedance when OE1 or OE2 is high, rated IOH -24 mA and IOL 24 mA at VCC = 3 V.
17 Y2 tri_state 3-state output for channel 2; high-impedance when OE1 or OE2 is high, rated IOH -24 mA and IOL 24 mA at VCC = 3 V.
18 Y1 tri_state 3-state output for channel 1; high-impedance when OE1 or OE2 is high, rated IOH -24 mA and IOL 24 mA at VCC = 3 V.
19 OE2 input Active-low output enable; when OE1 or OE2 is high, all eight outputs are placed in the high-impedance state, and OE should be tied to VCC through a pullup resistor to ensure high impedance during power up or down.
20 VCC power_in Supply voltage; the device operates from 2 V to 3.6 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74LVC541AQDWREP
  • Footprint: Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm
  • 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
  • 3D model files: sn74lvc541aqdwrep-etched.step / sn74lvc541aqdwrep-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74lvc541aqdwrep.step / sn74lvc541aqdwrep.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (16 pp, sha256 c27fb9eb0f32bcc1, retrieved 2026-10-08, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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).

Datasheet PDF