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SN74ALVC245PW

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by adom

Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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SN74ALVC245PW

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

SN74ALVC245PW from Texas Instruments, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 DIR input Direction control input. LOW = data flows from B bus to A bus; HIGH = data flows from A bus to B bus. Referenced to VCC (1.65 V-3.6 V).
2 A1 bidirectional Channel-1 A-side bus I/O. Driven when OE=L and DIR=L; input when DIR=H. Hi-Z when OE=H. ±24-mA drive at VCC=3 V.
3 A2 bidirectional Channel-2 A-side bus I/O. Driven when OE=L and DIR=L; input when DIR=H. Hi-Z when OE=H.
4 A3 bidirectional Channel-3 A-side bus I/O. Driven when OE=L and DIR=L; input when DIR=H. Hi-Z when OE=H.
5 A4 bidirectional Channel-4 A-side bus I/O. Driven when OE=L and DIR=L; input when DIR=H. Hi-Z when OE=H.
6 A5 bidirectional Channel-5 A-side bus I/O. Driven when OE=L and DIR=L; input when DIR=H. Hi-Z when OE=H.
7 A6 bidirectional Channel-6 A-side bus I/O. Driven when OE=L and DIR=L; input when DIR=H. Hi-Z when OE=H.
8 A7 bidirectional Channel-7 A-side bus I/O. Driven when OE=L and DIR=L; input when DIR=H. Hi-Z when OE=H.
9 A8 bidirectional Channel-8 A-side bus I/O. Driven when OE=L and DIR=L; input when DIR=H. Hi-Z when OE=H.
10 GND power_in Ground reference (0 V) for the device.
11 B8 bidirectional Channel-8 B-side bus I/O. Driven when OE=L and DIR=H; input when DIR=L. Hi-Z when OE=H.
12 B7 bidirectional Channel-7 B-side bus I/O. Driven when OE=L and DIR=H; input when DIR=L. Hi-Z when OE=H.
13 B6 bidirectional Channel-6 B-side bus I/O. Driven when OE=L and DIR=H; input when DIR=L. Hi-Z when OE=H.
14 B5 bidirectional Channel-5 B-side bus I/O. Driven when OE=L and DIR=H; input when DIR=L. Hi-Z when OE=H.
15 B4 bidirectional Channel-4 B-side bus I/O. Driven when OE=L and DIR=H; input when DIR=L. Hi-Z when OE=H.
16 B3 bidirectional Channel-3 B-side bus I/O. Driven when OE=L and DIR=H; input when DIR=L. Hi-Z when OE=H.
17 B2 bidirectional Channel-2 B-side bus I/O. Driven when OE=L and DIR=H; input when DIR=L. Hi-Z when OE=H.
18 B1 bidirectional Channel-1 B-side bus I/O. Driven when OE=L and DIR=H; input when DIR=L. Hi-Z when OE=H.
19 ~{OE} input Active-low output enable. LOW = outputs active (transceiver enabled per DIR); HIGH = both A and B outputs high-impedance (buses isolated). Should be tied to VCC via pullup during power sequencing.
20 VCC power_in Positive supply. Recommended operating range 1.65 V to 3.6 V; absolute-max 4.6 V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • SN74ALVC245PW
  • SN74ALVC245PWR
  • SN74ALVC245PWDW
  • SN74ALVC245PWDWR
  • SN74ALVC245PWNSR
  • SN74ALVC245PWDGVR
  • SN74ALVC245PWRGYR

CAD (KiCad official)

  • Symbol: SN74ALVC245PW
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: sn74alvc245pw-etched.step / sn74alvc245pw-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74alvc245pw.step / sn74alvc245pw.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (None pp, sha256 83dbaf25ff18161a, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF