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74VHC245PW

Public Made by Adom

by adom

Nexperia Buffer/Driver/Transceiver, TSSOP-20. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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74VHC245PW

Nexperia · Buffer/Driver/Transceiver · TSSOP-20

74VHC245PW from Nexperia, 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. When DIR=LOW, data flows from Bn to An; when DIR=HIGH, data flows from An to Bn (with OE=LOW). Schmitt-trigger input; accepts voltages higher than VCC.
2 A0 bidirectional Data input/output, bus A bit 0. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
3 A1 bidirectional Data input/output, bus A bit 1. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
4 A2 bidirectional Data input/output, bus A bit 2. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
5 A3 bidirectional Data input/output, bus A bit 3. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
6 A4 bidirectional Data input/output, bus A bit 4. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
7 A5 bidirectional Data input/output, bus A bit 5. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
8 A6 bidirectional Data input/output, bus A bit 6. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
9 A7 bidirectional Data input/output, bus A bit 7. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
10 GND power_in Ground reference, 0 V.
11 B7 bidirectional Data input/output, bus B bit 7. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
12 B6 bidirectional Data input/output, bus B bit 6. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
13 B5 bidirectional Data input/output, bus B bit 5. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
14 B4 bidirectional Data input/output, bus B bit 4. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
15 B3 bidirectional Data input/output, bus B bit 3. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
16 B2 bidirectional Data input/output, bus B bit 2. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
17 B1 bidirectional Data input/output, bus B bit 1. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
18 B0 bidirectional Data input/output, bus B bit 0. Direction is controlled by DIR; outputs 3-state when OE is HIGH.
19 OE input Output enable input, active LOW. When HIGH, both A and B outputs are placed in high-impedance (3-state) OFF-state, effectively isolating the buses.
20 VCC power_in Supply voltage. Operating range 2.0 V to 5.5 V for 74VHC245; absolute max +7.0 V.

Key specifications

Parameter Value
Manufacturer Nexperia
Package TSSOP-20
Category Logic
Pins 20

Ordering variants

Same part, different packaging or reel option.

  • 74VHC245PW
  • 74VHC245PWD
  • 74VHC245PWBQ

CAD (KiCad official)

  • Symbol: 74VHC245PW
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: 74vhc245pw-etched.step / 74vhc245pw-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74vhc245pw.step / 74vhc245pw.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (16 pp, sha256 cffe9d1b2f02d399, 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