component
SN74LV245ATDWR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownSN74LV245ATDWR
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · SOIC-20-300mil
SN74LV245ATDWR from Texas Instruments, in a SOIC-20-300mil. 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: high transmits A data to B bus, low transmits B data to A bus (TTL-compatible, VIH min 2 V, VIL max 0.8 V). |
| 2 | A1 | bidirectional | A-bus channel 1 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 3 | A2 | bidirectional | A-bus channel 2 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 4 | A3 | bidirectional | A-bus channel 3 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 5 | A4 | bidirectional | A-bus channel 4 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 6 | A5 | bidirectional | A-bus channel 5 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 7 | A6 | bidirectional | A-bus channel 6 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 8 | A7 | bidirectional | A-bus channel 7 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 9 | A8 | bidirectional | A-bus channel 8 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 10 | GND | power_in | Ground pin. |
| 11 | B8 | bidirectional | B-bus channel 8 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 12 | B7 | bidirectional | B-bus channel 7 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 13 | B6 | bidirectional | B-bus channel 6 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 14 | B5 | bidirectional | B-bus channel 5 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 15 | B4 | bidirectional | B-bus channel 4 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 16 | B3 | bidirectional | B-bus channel 3 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 17 | B2 | bidirectional | B-bus channel 2 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 18 | B1 | bidirectional | B-bus channel 1 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |
| 19 | OE | input | Output-enable input: high isolates the buses (high-impedance), and should be tied to VCC through a pullup resistor to ensure high-impedance during power up or power down. |
| 20 | VCC | power_in | Supply voltage, 4.5 V to 5.5 V recommended operating range (absolute maximum 7 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-20-300mil |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74LV245ATDWR - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files:
sn74lv245atdwr-etched.step/sn74lv245atdwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74lv245atdwr.step/sn74lv245atdwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (24 pp, sha256
9e878d0eaa21c4db, retrieved 2026-10-03, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(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).