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SN74ABT245BPWR

Public Made by Adom

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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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Contents

README

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SN74ABT245BPWR

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

SN74ABT245BPWR 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-control input; LOW selects B-bus to A-bus data transfer, HIGH selects A-bus to B-bus data transfer; VIH = 2 V min, VIL = 0.8 V max.
2 A1 bidirectional Port A bidirectional data bus bit 1; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
3 A2 bidirectional Port A bidirectional data bus bit 2; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
4 A3 bidirectional Port A bidirectional data bus bit 3; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
5 A4 bidirectional Port A bidirectional data bus bit 4; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
6 A5 bidirectional Port A bidirectional data bus bit 5; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
7 A6 bidirectional Port A bidirectional data bus bit 6; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
8 A7 bidirectional Port A bidirectional data bus bit 7; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
9 A8 bidirectional Port A bidirectional data bus bit 8; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
10 GND power_in Ground supply reference; 0 V.
11 B8 bidirectional Port B bidirectional data bus bit 8; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
12 B7 bidirectional Port B bidirectional data bus bit 7; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
13 B6 bidirectional Port B bidirectional data bus bit 6; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
14 B5 bidirectional Port B bidirectional data bus bit 5; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
15 B4 bidirectional Port B bidirectional data bus bit 4; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
16 B3 bidirectional Port B bidirectional data bus bit 3; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
17 B2 bidirectional Port B bidirectional data bus bit 2; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
18 B1 bidirectional Port B bidirectional data bus bit 1; drives at IOH = −32 mA / IOL = 64 mA when enabled; enters high-impedance state when OE is HIGH.
19 ~OE input Active-low output-enable control input; HIGH disables all outputs, isolating both bus ports to high-impedance state; VIH = 2 V min, VIL = 0.8 V max.
20 VCC power_in Positive supply voltage; recommended operating range 4.5 V to 5.5 V, absolute maximum 7 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74ABT245BPWR
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: sn74abt245bpwr-etched.step / sn74abt245bpwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74abt245bpwr.step / sn74abt245bpwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 28eaa2f354cb3acf, retrieved 2026-09-27, 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