component
SN74CB3T3253PWR
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, 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
markdownSN74CB3T3253PWR
Texas Instruments · Signal Switches, Multiplexers, Decoders · TSSOP-16
SN74CB3T3253PWR 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 | 1OE | input | Output Enable 1, active-low; enables bidirectional connection between 1A and selected 1B port when low. |
| 2 | S1 | input | Select Pin 1; with S0 selects which 1B port (1-4) connects to 1A. |
| 3 | 1B4 | bidirectional | Channel 1 I/O 4; bidirectional data port supporting 0-5.5V signaling with 5V tolerance. |
| 4 | 1B3 | bidirectional | Channel 1 I/O 3; bidirectional data port supporting 0-5.5V signaling with 5V tolerance. |
| 5 | 1B2 | bidirectional | Channel 1 I/O 2; bidirectional data port supporting 0-5.5V signaling with 5V tolerance. |
| 6 | 1B1 | bidirectional | Channel 1 I/O 1; bidirectional data port supporting 0-5.5V signaling with 5V tolerance. |
| 7 | 1A | bidirectional | Channel 1 common; bidirectional data port connecting to selected 1B port when 1OE is low, 0-5.5V operation. |
| 8 | GND | power_in | Ground reference. |
| 9 | 2A | bidirectional | Channel 2 common; bidirectional data port connecting to selected 2B port when 2OE is low, 0-5.5V operation. |
| 10 | 2B1 | bidirectional | Channel 2 I/O 1; bidirectional data port supporting 0-5.5V signaling with 5V tolerance. |
| 11 | 2B2 | bidirectional | Channel 2 I/O 2; bidirectional data port supporting 0-5.5V signaling with 5V tolerance. |
| 12 | 2B3 | bidirectional | Channel 2 I/O 3; bidirectional data port supporting 0-5.5V signaling with 5V tolerance. |
| 13 | 2B4 | bidirectional | Channel 2 I/O 4; bidirectional data port supporting 0-5.5V signaling with 5V tolerance. |
| 14 | S0 | input | Select Pin 0; with S1 selects which B port (1-4) connects to corresponding A port. |
| 15 | 2OE | input | Output Enable 2, active-low; enables bidirectional connection between 2A and selected 2B port when low. |
| 16 | VCC | power_in | Positive power supply; 2.3-3.6V recommended operating range. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN74CB3T3253PWR - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
sn74cb3t3253pwr-etched.step/sn74cb3t3253pwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74cb3t3253pwr.step/sn74cb3t3253pwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (31 pp, sha256
5e3d08f63d92ea22, retrieved 2026-09-26, tier: manufacturer) - 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).