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SN74LVCH245APWR

Public Made by Adom

by adom

Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN74LVCH245APWR

Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TSSOP-20

SN74LVCH245APWR from Texas Instruments, in a TSSOP-20. 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 DIR input Direction select input that sets whether data flows from A to B or B to A.
2 A1 bidirectional A1 input or output; inputs accept voltages to 5.5 V and the pin has bus hold.
3 A2 bidirectional A2 input or output; inputs accept voltages to 5.5 V and the pin has bus hold.
4 A3 bidirectional A3 input or output; inputs accept voltages to 5.5 V and the pin has bus hold.
5 A4 bidirectional A4 input or output; inputs accept voltages to 5.5 V and the pin has bus hold.
6 A5 bidirectional A5 input or output; inputs accept voltages to 5.5 V and the pin has bus hold.
7 A6 bidirectional A6 input or output; inputs accept voltages to 5.5 V and the pin has bus hold.
8 A7 bidirectional A7 input or output; inputs accept voltages to 5.5 V and the pin has bus hold.
9 A8 bidirectional A8 input or output; inputs accept voltages to 5.5 V and the pin has bus hold.
10 GND power_in Ground.
11 B8 bidirectional B8 input or output (the pin table labels it Y8); inputs accept voltages to 5.5 V and the pin has bus hold.
12 B7 bidirectional B7 input or output (the pin table labels it Y7); inputs accept voltages to 5.5 V and the pin has bus hold.
13 B6 bidirectional B6 input or output (the pin table labels it Y6); inputs accept voltages to 5.5 V and the pin has bus hold.
14 B5 bidirectional B5 input or output (the pin table labels it Y5); inputs accept voltages to 5.5 V and the pin has bus hold.
15 B4 bidirectional B4 input or output (the pin table labels it Y4); inputs accept voltages to 5.5 V and the pin has bus hold.
16 B3 bidirectional B3 input or output (the pin table labels it Y3); inputs accept voltages to 5.5 V and the pin has bus hold.
17 B2 bidirectional B2 input or output (the pin table labels it Y2); inputs accept voltages to 5.5 V and the pin has bus hold.
18 B1 bidirectional B1 input or output (the pin table labels it Y1); inputs accept voltages to 5.5 V and the pin has bus hold.
19 OE input Output enable, active low.
20 VCC power_in Positive supply; SN74LVCH245A operates from 1.65 V to 3.6 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-20
Category Logic
Pins 20

CAD (KiCad official)

  • Symbol: SN74LVCH245APWR
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: sn74lvch245apwr-etched.step / sn74lvch245apwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74lvch245apwr.step / sn74lvch245apwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (44 pp, sha256 d6a53fff1f569e05, retrieved 2026-10-08, tier: manufacturer)
  • 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