component
SN74LVCH245APWR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, 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
markdownSN74LVCH245APWR
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74lvch245apwr.step/sn74lvch245apwr.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).