component

SN74LVC257AMPWREP

Public Made by Adom

by adom

Texas Instruments Signal Switches, Multiplexers, Decoders, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN74LVC257AMPWREP

Texas Instruments · Signal Switches, Multiplexers, Decoders · TSSOP-16

SN74LVC257AMPWREP from Texas Instruments, in a TSSOP-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 A/B input Select input for all multiplexer stages; low selects A inputs, high selects B inputs
2 1A input Data input A for multiplexer stage 1
3 1B input Data input B for multiplexer stage 1
4 1Y tri_state Three-state output for multiplexer stage 1; disabled (high impedance) when OE is high
5 2A input Data input A for multiplexer stage 2
6 2B input Data input B for multiplexer stage 2
7 2Y tri_state Three-state output for multiplexer stage 2; disabled (high impedance) when OE is high
8 GND power_in Ground (0V reference)
9 3Y tri_state Three-state output for multiplexer stage 3; disabled (high impedance) when OE is high
10 3B input Data input B for multiplexer stage 3
11 3A input Data input A for multiplexer stage 3
12 4Y tri_state Three-state output for multiplexer stage 4; disabled (high impedance) when OE is high
13 4B input Data input B for multiplexer stage 4
14 4A input Data input A for multiplexer stage 4
15 OE input Output enable control input; active-low, outputs disabled (high impedance) when high
16 VCC power_in Positive power supply; recommended operating voltage range 2V to 3.6V

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74LVC257AMPWREP
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: sn74lvc257ampwrep-etched.step / sn74lvc257ampwrep-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74lvc257ampwrep.step / sn74lvc257ampwrep.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (13 pp, sha256 8ee0b28dc740161a, retrieved 2026-10-07, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (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