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SN74HCT245DBR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SSOP-20-208mil. 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
markdownSN74HCT245DBR
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · SSOP-20-208mil
SN74HCT245DBR from Texas Instruments, in a SSOP-20-208mil. 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; High = A to B transfer, Low = B to A transfer |
| 2 | A1 | bidirectional | Channel 1 port A, bidirectional data line |
| 3 | A2 | bidirectional | Channel 2 port A, bidirectional data line |
| 4 | A3 | bidirectional | Channel 3 port A, bidirectional data line |
| 5 | A4 | bidirectional | Channel 4 port A, bidirectional data line |
| 6 | A5 | bidirectional | Channel 5 port A, bidirectional data line |
| 7 | A6 | bidirectional | Channel 6 port A, bidirectional data line |
| 8 | A7 | bidirectional | Channel 7 port A, bidirectional data line |
| 9 | A8 | bidirectional | Channel 8 port A, bidirectional data line |
| 10 | GND | power_in | Ground |
| 11 | B8 | bidirectional | Channel 8 port B, bidirectional data line |
| 12 | B7 | bidirectional | Channel 7 port B, bidirectional data line |
| 13 | B6 | bidirectional | Channel 6 port B, bidirectional data line |
| 14 | B5 | bidirectional | Channel 5 port B, bidirectional data line |
| 15 | B4 | bidirectional | Channel 4 port B, bidirectional data line |
| 16 | B3 | bidirectional | Channel 3 port B, bidirectional data line |
| 17 | B2 | bidirectional | Channel 2 port B, bidirectional data line |
| 18 | B1 | bidirectional | Channel 1 port B, bidirectional data line |
| 19 | OE | input | Output enable input, active low; High = all ports in high impedance mode, Low = all ports active |
| 20 | VCC | power_in | Power supply, 4.5V to 5.5V |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-20-208mil |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74HCT245DBR - Footprint:
Package_SO:SSOP-20_5.3x7.2mm_P0.65mm - 3D model: SSOP-20-208mil (KiCad packages3D, STEP)
- 3D model files:
sn74hct245dbr-etched.step/sn74hct245dbr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hct245dbr.step/sn74hct245dbr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (38 pp, sha256
2cd038f967c332ad, retrieved 2026-09-24, 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-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).