component
CY74FCT2245ATPWR
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
markdownCY74FCT2245ATPWR
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TSSOP-20
CY74FCT2245ATPWR 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 | T/R | input | Transmit/receive direction input: high sends data from A ports to B ports, low sends data from B ports to A ports. |
| 2 | A0 | bidirectional | A-port data I/O bit 0 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 3 | A1 | bidirectional | A-port data I/O bit 1 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 4 | A2 | bidirectional | A-port data I/O bit 2 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 5 | A3 | bidirectional | A-port data I/O bit 3 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 6 | A4 | bidirectional | A-port data I/O bit 4 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 7 | A5 | bidirectional | A-port data I/O bit 5 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 8 | A6 | bidirectional | A-port data I/O bit 6 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 9 | A7 | bidirectional | A-port data I/O bit 7 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 10 | GND | power_in | Ground. |
| 11 | B7 | bidirectional | B-port data I/O bit 7 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 12 | B6 | bidirectional | B-port data I/O bit 6 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 13 | B5 | bidirectional | B-port data I/O bit 5 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 14 | B4 | bidirectional | B-port data I/O bit 4 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 15 | B3 | bidirectional | B-port data I/O bit 3 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 16 | B2 | bidirectional | B-port data I/O bit 2 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 17 | B1 | bidirectional | B-port data I/O bit 1 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 18 | B0 | bidirectional | B-port data I/O bit 0 with 3-state output, 25-Ω series resistor, 12 mA sink and 15 mA source capability. |
| 19 | OE | input | Output enable, when high it puts both A and B ports in the high-impedance state. |
| 20 | VCC | power_in | Supply voltage, 4.75 V to 5.25 V recommended (5 V nominal). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
CY74FCT2245ATPWR - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
cy74fct2245atpwr-etched.step/cy74fct2245atpwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cy74fct2245atpwr.step/cy74fct2245atpwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (19 pp, sha256
3c88567fc5d3951a, retrieved 2026-10-10, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).