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SN74HC245N
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, DIP-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
markdownSN74HC245N
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · DIP-20
SN74HC245N from Texas Instruments, in a DIP-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 control input; low selects data transfer from B to A, high selects data transfer from A to B. |
| 2 | A1 | tri_state | A bus data line 1; tri-state I/O with maximum output drive ±35mA. |
| 3 | A2 | tri_state | A bus data line 2; tri-state I/O with maximum output drive ±35mA. |
| 4 | A3 | tri_state | A bus data line 3; tri-state I/O with maximum output drive ±35mA. |
| 5 | A4 | tri_state | A bus data line 4; tri-state I/O with maximum output drive ±35mA. |
| 6 | A5 | tri_state | A bus data line 5; tri-state I/O with maximum output drive ±35mA. |
| 7 | A6 | tri_state | A bus data line 6; tri-state I/O with maximum output drive ±35mA. |
| 8 | A7 | tri_state | A bus data line 7; tri-state I/O with maximum output drive ±35mA. |
| 9 | A8 | tri_state | A bus data line 8; tri-state I/O with maximum output drive ±35mA. |
| 10 | GND | power_in | Ground connection; logic and power reference. |
| 11 | B8 | tri_state | B bus data line 8; tri-state I/O with maximum output drive ±35mA. |
| 12 | B7 | tri_state | B bus data line 7; tri-state I/O with maximum output drive ±35mA. |
| 13 | B6 | tri_state | B bus data line 6; tri-state I/O with maximum output drive ±35mA. |
| 14 | B5 | tri_state | B bus data line 5; tri-state I/O with maximum output drive ±35mA. |
| 15 | B4 | tri_state | B bus data line 4; tri-state I/O with maximum output drive ±35mA. |
| 16 | B3 | tri_state | B bus data line 3; tri-state I/O with maximum output drive ±35mA. |
| 17 | B2 | tri_state | B bus data line 2; tri-state I/O with maximum output drive ±35mA. |
| 18 | B1 | tri_state | B bus data line 1; tri-state I/O with maximum output drive ±35mA. |
| 19 | OE | input | Output enable input; low enables tri-state outputs, high forces outputs to high impedance. |
| 20 | VCC | power_in | Positive power supply voltage; 2V to 6V recommended operating range. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | DIP-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74HC245N - Footprint:
Package_DIP:DIP-20_W7.62mm - 3D model: DIP-20 (KiCad packages3D, STEP)
- 3D model files:
sn74hc245n-etched.step/sn74hc245n-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hc245n.step/sn74hc245n.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (34 pp, sha256
37c979faafe82b6b, retrieved 2026-09-26, 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).