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SN74CBTLV3257PWR
Public Made by Adomby adom
Texas Instruments Analog Switches, Multiplexers, 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
markdownSN74CBTLV3257PWR
Texas Instruments · Analog Switches, Multiplexers · TSSOP-16
SN74CBTLV3257PWR 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 | S | input | Select input; high selects B2 path, low selects B1 path for all channels. |
| 2 | 1B1 | bidirectional | Channel 1 port 1; connects to 1A through 5Ω FET switch when S=low and OE=low. |
| 3 | 1B2 | bidirectional | Channel 1 port 2; connects to 1A through 5Ω FET switch when S=high and OE=low. |
| 4 | 1A | bidirectional | Channel 1 common port; supports bidirectional signal flow 0V to VCC, maximum 128mA continuous current. |
| 5 | 2B1 | bidirectional | Channel 2 port 1; connects to 2A through 5Ω FET switch when S=low and OE=low. |
| 6 | 2B2 | bidirectional | Channel 2 port 2; connects to 2A through 5Ω FET switch when S=high and OE=low. |
| 7 | 2A | bidirectional | Channel 2 common port; supports bidirectional signal flow 0V to VCC, maximum 128mA continuous current. |
| 8 | GND | power_in | Ground; power supply return. |
| 9 | 3A | bidirectional | Channel 3 common port; supports bidirectional signal flow 0V to VCC, maximum 128mA continuous current. |
| 10 | 3B2 | bidirectional | Channel 3 port 2; connects to 3A through 5Ω FET switch when S=high and OE=low. |
| 11 | 3B1 | bidirectional | Channel 3 port 1; connects to 3A through 5Ω FET switch when S=low and OE=low. |
| 12 | 4A | bidirectional | Channel 4 common port; supports bidirectional signal flow 0V to VCC, maximum 128mA continuous current. |
| 13 | 4B2 | bidirectional | Channel 4 port 2; connects to 4A through 5Ω FET switch when S=high and OE=low. |
| 14 | 4B1 | bidirectional | Channel 4 port 1; connects to 4A through 5Ω FET switch when S=low and OE=low. |
| 15 | OE | input | Output enable input, active low; high disables all channels, accepts VCC or GND logic levels. |
| 16 | VCC | power_in | Positive supply voltage; recommended operating range 2.3 to 3.6V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN74CBTLV3257PWR - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
sn74cbtlv3257pwr-etched.step/sn74cbtlv3257pwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74cbtlv3257pwr.step/sn74cbtlv3257pwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (41 pp, sha256
d058e717f8b7b6c0, retrieved 2026-09-24, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).