component
SN74HC245PW
Public Made by Adomby adom
lingxingic Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN74HC245PW
lingxingic · Buffers, Drivers, Receivers, Transceivers · TSSOP-20
SN74HC245PW from lingxingic, 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 | Transmission direction control input; selects A-to-B transfer when low or B-to-A transfer when high. |
| 2 | A0 | bidirectional | Bidirectional data pin (A side); acts as input when DIR=low or output when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 3 | A1 | bidirectional | Bidirectional data pin (A side); acts as input when DIR=low or output when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 4 | A2 | bidirectional | Bidirectional data pin (A side); acts as input when DIR=low or output when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 5 | A3 | bidirectional | Bidirectional data pin (A side); acts as input when DIR=low or output when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 6 | A4 | bidirectional | Bidirectional data pin (A side); acts as input when DIR=low or output when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 7 | A5 | bidirectional | Bidirectional data pin (A side); acts as input when DIR=low or output when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 8 | A6 | bidirectional | Bidirectional data pin (A side); acts as input when DIR=low or output when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 9 | A7 | bidirectional | Bidirectional data pin (A side); acts as input when DIR=low or output when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 10 | GND | power_in | Ground (0V) connection and power reference. |
| 11 | B7 | bidirectional | Bidirectional data pin (B side); acts as output when DIR=low or input when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 12 | B6 | bidirectional | Bidirectional data pin (B side); acts as output when DIR=low or input when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 13 | B5 | bidirectional | Bidirectional data pin (B side); acts as output when DIR=low or input when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 14 | B4 | bidirectional | Bidirectional data pin (B side); acts as output when DIR=low or input when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 15 | B3 | bidirectional | Bidirectional data pin (B side); acts as output when DIR=low or input when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 16 | B2 | bidirectional | Bidirectional data pin (B side); acts as output when DIR=low or input when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 17 | B1 | bidirectional | Bidirectional data pin (B side); acts as output when DIR=low or input when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 18 | B0 | bidirectional | Bidirectional data pin (B side); acts as output when DIR=low or input when DIR=high (both when OE-=low); high-impedance when OE-=high. |
| 19 | OE, | input | Active-low output enable control input; enables data transmission when low, tri-states all outputs to high-impedance when high. |
| 20 | VCC | power_in | Positive power supply voltage; recommended operating voltage 5.0V with range 2.0V to 6.0V for SN74HC245. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | lingxingic |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74HC245PW - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
sn74hc245pw-etched.step/sn74hc245pw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hc245pw.step/sn74hc245pw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: lingxingic datasheet (20 pp, sha256
89cf8cba23fe9cce, retrieved 2026-09-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).