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SN74CB3T3253DBQR
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.
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README.mdadded+53@@ -0,0 +1,53 @@+# SN74CB3T3253DBQR++**Texas Instruments** · Signal Switches, Multiplexers, Decoders · SSOP-16-150mil++SN74CB3T3253DBQR 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 input, active low, 5V tolerant |+| 2 | S1 | input | Select input bit 1 for 4-to-1 channel 1 multiplexer |+| 3 | 1B4 | bidirectional | Bidirectional I/O port 4 for channel 1, supports 0V to 5.5V |+| 4 | 1B3 | bidirectional | Bidirectional I/O port 3 for channel 1, supports 0V to 5.5V |+| 5 | 1B2 | bidirectional | Bidirectional I/O port 2 for channel 1, supports 0V to 5.5V |+| 6 | 1B1 | bidirectional | Bidirectional I/O port 1 for channel 1, supports 0V to 5.5V |+| 7 | 1A | bidirectional | Common bidirectional I/O port for channel 1, supports 0V to 5.5V |+| 8 | GND | power_in | Ground connection, 0V reference |+| 9 | 2A | bidirectional | Common bidirectional I/O port for channel 2, supports 0V to 5.5V |+| 10 | 2B1 | bidirectional | Bidirectional I/O port 1 for channel 2, supports 0V to 5.5V |+| 11 | 2B2 | bidirectional | Bidirectional I/O port 2 for channel 2, supports 0V to 5.5V |+| 12 | 2B3 | bidirectional | Bidirectional I/O port 3 for channel 2, supports 0V to 5.5V |+| 13 | 2B4 | bidirectional | Bidirectional I/O port 4 for channel 2, supports 0V to 5.5V |+| 14 | S0 | input | Select input bit 0 for 4-to-1 channel 2 multiplexer |+| 15 | 2OE | input | Output Enable 2 input, active low, 5V tolerant |+| 16 | VCC | power_in | Power supply, 2.3V to 3.6V recommended operating range |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SSOP-16-150mil |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `SN74CB3T3253DBQR`+- Footprint: `Package_SO:SSOP-16_5.3x6.2mm_P0.65mm`+- 3D model: SSOP-16-150mil (KiCad packages3D, STEP)+- 3D model files: `sn74cb3t3253dbqr-etched.step` / `sn74cb3t3253dbqr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74cb3t3253dbqr.step` / `sn74cb3t3253dbqr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/sn74cb3t3253) (31 pp, sha256 `cc676cd28cb211ac`, retrieved 2026-10-06, 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`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-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).++[Datasheet PDF](docs/sn74cb3t3253dbqr-datasheet.pdf)
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