component
SN74CBT3257DBR
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, SSOP-16-208mil. 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
markdownSN74CBT3257DBR
Texas Instruments · Signal Switches, Multiplexers, Decoders · SSOP-16-208mil
SN74CBT3257DBR from Texas Instruments, in a SSOP-16-208mil. 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 | S | input | TTL-compatible select input for multiplexer path control. |
| 2 | 1B1 | bidirectional | Channel 1 B1 FET switch port. |
| 3 | 1B2 | bidirectional | Channel 1 B2 FET switch port. |
| 4 | 1A | bidirectional | Channel 1 A FET switch port. |
| 5 | 2B1 | bidirectional | Channel 2 B1 FET switch port. |
| 6 | 2B2 | bidirectional | Channel 2 B2 FET switch port. |
| 7 | 2A | bidirectional | Channel 2 A FET switch port. |
| 8 | GND | power_in | Ground, negative supply reference. |
| 9 | 3A | bidirectional | Channel 3 A FET switch port. |
| 10 | 3B2 | bidirectional | Channel 3 B2 FET switch port. |
| 11 | 3B1 | bidirectional | Channel 3 B1 FET switch port. |
| 12 | 4A | bidirectional | Channel 4 A FET switch port. |
| 13 | 4B2 | bidirectional | Channel 4 B2 FET switch port. |
| 14 | 4B1 | bidirectional | Channel 4 B1 FET switch port. |
| 15 | OE | input | TTL-compatible output enable control input, active low. |
| 16 | VCC | power_out | Positive supply voltage, 4 to 5.5 V recommended operating range. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-16-208mil |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN74CBT3257DBR - Footprint:
Package_SO:SSOP-16_5.3x6.2mm_P0.65mm - 3D model: SSOP-16-208mil (KiCad packages3D, STEP)
- 3D model files:
sn74cbt3257dbr-etched.step/sn74cbt3257dbr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74cbt3257dbr.step/sn74cbt3257dbr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (16 pp, sha256
71e61043466ffef3, retrieved 2026-10-03, tier: lcsc) - 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).