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SN74CB3Q3253DBQR
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, SSOP-16-150mil. 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
markdownSN74CB3Q3253DBQR
Texas Instruments · Signal Switches, Multiplexers, Decoders · SSOP-16-150mil
SN74CB3Q3253DBQR from Texas Instruments, in a SSOP-16-150mil. 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; controls channel 1 multiplexer enable when low. |
| 2 | S1 | input | Select bit 1; with S0 selects one of four B1-B4 inputs for channel 1 A port. |
| 3 | 1B4 | bidirectional | Channel 1 B4; bidirectional I/O port, one of four selectable inputs to A1. |
| 4 | 1B3 | bidirectional | Channel 1 B3; bidirectional I/O port, one of four selectable inputs to A1. |
| 5 | 1B2 | bidirectional | Channel 1 B2; bidirectional I/O port, one of four selectable inputs to A1. |
| 6 | 1B1 | bidirectional | Channel 1 B1; bidirectional I/O port, one of four selectable inputs to A1. |
| 7 | 1A | bidirectional | Channel 1 A; bidirectional common port that connects to selected B input or presents high-Z when disabled. |
| 8 | GND | power_in | Ground, 0V electrical reference. |
| 9 | 2A | bidirectional | Channel 2 A; bidirectional common port that connects to selected B input or presents high-Z when disabled. |
| 10 | 2B1 | bidirectional | Channel 2 B1; bidirectional I/O port, one of four selectable inputs to A2. |
| 11 | 2B2 | bidirectional | Channel 2 B2; bidirectional I/O port, one of four selectable inputs to A2. |
| 12 | 2B3 | bidirectional | Channel 2 B3; bidirectional I/O port, one of four selectable inputs to A2. |
| 13 | 2B4 | bidirectional | Channel 2 B4; bidirectional I/O port, one of four selectable inputs to A2. |
| 14 | S0 | input | Select bit 0; with S1 selects one of four B1-B4 inputs for channel 2 A port. |
| 15 | 2OE | input | Output Enable 2, active low; controls channel 2 multiplexer enable when low. |
| 16 | VCC | power_in | Power supply voltage, 2.3V to 3.6V operating range. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-16-150mil |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN74CB3Q3253DBQR - Footprint:
Package_SO:SSOP-16_5.3x6.2mm_P0.65mm - 3D model: SSOP-16-150mil (KiCad packages3D, STEP)
- 3D model files:
sn74cb3q3253dbqr-etched.step/sn74cb3q3253dbqr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74cb3q3253dbqr.step/sn74cb3q3253dbqr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (30 pp, sha256
cd2fb5fc187d8c95, 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).