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SN74AXC4T774QPWRQ1
Public Made by Adomby adom
Texas Instruments Translators, Level Shifters, TSSOP-16. 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
markdownSN74AXC4T774QPWRQ1
Texas Instruments · Translators, Level Shifters · TSSOP-16
SN74AXC4T774QPWRQ1 from Texas Instruments, in a TSSOP-16. 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 | DIR1 | input | Direction control input for transceiver 1, when high selects A-to-B direction, when low selects B-to-A direction, referenced to VCCA. |
| 2 | DIR2 | input | Direction control input for transceiver 2, when high selects A-to-B direction, when low selects B-to-A direction, referenced to VCCA. |
| 3 | A1 | bidirectional | Bidirectional I/O port A1 referenced to VCCA, supports 0.65V to 3.6V logic levels. |
| 4 | A2 | bidirectional | Bidirectional I/O port A2 referenced to VCCA, supports 0.65V to 3.6V logic levels. |
| 5 | A3 | bidirectional | Bidirectional I/O port A3 referenced to VCCA, supports 0.65V to 3.6V logic levels. |
| 6 | A4 | bidirectional | Bidirectional I/O port A4 referenced to VCCA, supports 0.65V to 3.6V logic levels. |
| 7 | DIR3 | input | Direction control input for transceiver 3, when high selects A-to-B direction, when low selects B-to-A direction, referenced to VCCA. |
| 8 | DIR4 | input | Direction control input for transceiver 4, when high selects A-to-B direction, when low selects B-to-A direction, referenced to VCCA. |
| 9 | OE | input | Tri-state output enable input, when high disables all outputs to high-impedance, when low enables outputs, referenced to VCCA. |
| 10 | GND | power_in | Ground reference. |
| 11 | B4 | bidirectional | Bidirectional I/O port B4 referenced to VCCB, supports 0.65V to 3.6V logic levels. |
| 12 | B3 | bidirectional | Bidirectional I/O port B3 referenced to VCCB, supports 0.65V to 3.6V logic levels. |
| 13 | B2 | bidirectional | Bidirectional I/O port B2 referenced to VCCB, supports 0.65V to 3.6V logic levels. |
| 14 | B1 | bidirectional | Bidirectional I/O port B1 referenced to VCCB, supports 0.65V to 3.6V logic levels. |
| 15 | VCCB | power_in | B port power supply, operating range 0.65V to 3.6V. |
| 16 | VCCA | power_in | A port power supply, operating range 0.65V to 3.6V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN74AXC4T774QPWRQ1 - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
sn74axc4t774qpwrq1-etched.step/sn74axc4t774qpwrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74axc4t774qpwrq1.step/sn74axc4t774qpwrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (43 pp, sha256
463af8c2d06fa5a8, retrieved 2026-10-05, 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 0.3, 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).