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SN74LVT245BPWR
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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.
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
markdownSN74LVT245BPWR
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TSSOP-20
SN74LVT245BPWR 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: a low level selects B-to-A data transfer and a high level selects A-to-B data transfer, per the function table. |
| 2 | A1 | bidirectional | 3-state I/O terminal of the A bus, channel 1; transmits data to or from the corresponding B-bus terminal depending on DIR and OE. |
| 3 | A2 | bidirectional | 3-state I/O terminal of the A bus, channel 2; transmits data to or from the corresponding B-bus terminal depending on DIR and OE. |
| 4 | A3 | bidirectional | 3-state I/O terminal of the A bus, channel 3; transmits data to or from the corresponding B-bus terminal depending on DIR and OE. |
| 5 | A4 | bidirectional | 3-state I/O terminal of the A bus, channel 4; transmits data to or from the corresponding B-bus terminal depending on DIR and OE. |
| 6 | A5 | bidirectional | 3-state I/O terminal of the A bus, channel 5; transmits data to or from the corresponding B-bus terminal depending on DIR and OE. |
| 7 | A6 | bidirectional | 3-state I/O terminal of the A bus, channel 6; transmits data to or from the corresponding B-bus terminal depending on DIR and OE. |
| 8 | A7 | bidirectional | 3-state I/O terminal of the A bus, channel 7; transmits data to or from the corresponding B-bus terminal depending on DIR and OE. |
| 9 | A8 | bidirectional | 3-state I/O terminal of the A bus, channel 8; transmits data to or from the corresponding B-bus terminal depending on DIR and OE. |
| 10 | GND | power_in | Ground supply pin for the device. |
| 11 | B8 | bidirectional | 3-state I/O terminal of the B bus, channel 8; transmits data to or from the corresponding A-bus terminal depending on DIR and OE. |
| 12 | B7 | bidirectional | 3-state I/O terminal of the B bus, channel 7; transmits data to or from the corresponding A-bus terminal depending on DIR and OE. |
| 13 | B6 | bidirectional | 3-state I/O terminal of the B bus, channel 6; transmits data to or from the corresponding A-bus terminal depending on DIR and OE. |
| 14 | B5 | bidirectional | 3-state I/O terminal of the B bus, channel 5; transmits data to or from the corresponding A-bus terminal depending on DIR and OE. |
| 15 | B4 | bidirectional | 3-state I/O terminal of the B bus, channel 4; transmits data to or from the corresponding A-bus terminal depending on DIR and OE. |
| 16 | B3 | bidirectional | 3-state I/O terminal of the B bus, channel 3; transmits data to or from the corresponding A-bus terminal depending on DIR and OE. |
| 17 | B2 | bidirectional | 3-state I/O terminal of the B bus, channel 2; transmits data to or from the corresponding A-bus terminal depending on DIR and OE. |
| 18 | B1 | bidirectional | 3-state I/O terminal of the B bus, channel 1; transmits data to or from the corresponding A-bus terminal depending on DIR and OE. |
| 19 | OE | input | Output-enable input, active low: a high level disables the outputs, placing both A and B buses in the high-impedance state and isolating them. |
| 20 | VCC | power_in | Supply voltage pin; recommended operating range is 2.7 V to 3.6 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74LVT245BPWR - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
sn74lvt245bpwr-etched.step/sn74lvt245bpwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74lvt245bpwr.step/sn74lvt245bpwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (22 pp, sha256
edba6f3dad321ba6, retrieved 2026-09-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).