component
SN74CBT3861PWR
Public Made by Adomby adom
Texas Instruments Analog Switches, Multiplexers, TSSOP-24. 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
markdownSN74CBT3861PWR
Texas Instruments · Analog Switches, Multiplexers · TSSOP-24
SN74CBT3861PWR from Texas Instruments, in a TSSOP-24. 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 | NC | unconnected | No connection |
| 2 | A1 | bidirectional | Bidirectional switch port A signal, connects to port B when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 3 | A2 | bidirectional | Bidirectional switch port A signal, connects to port B when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 4 | A3 | bidirectional | Bidirectional switch port A signal, connects to port B when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 5 | A4 | bidirectional | Bidirectional switch port A signal, connects to port B when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 6 | A5 | bidirectional | Bidirectional switch port A signal, connects to port B when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 7 | A6 | bidirectional | Bidirectional switch port A signal, connects to port B when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 8 | A7 | bidirectional | Bidirectional switch port A signal, connects to port B when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 9 | A8 | bidirectional | Bidirectional switch port A signal, connects to port B when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 10 | A9 | bidirectional | Bidirectional switch port A signal, connects to port B when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 11 | A10 | bidirectional | Bidirectional switch port A signal, connects to port B when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 12 | GND | power_in | Ground (0 V reference) |
| 13 | B10 | bidirectional | Bidirectional switch port B signal, connects to port A when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 14 | B9 | bidirectional | Bidirectional switch port B signal, connects to port A when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 15 | B8 | bidirectional | Bidirectional switch port B signal, connects to port A when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 16 | B7 | bidirectional | Bidirectional switch port B signal, connects to port A when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 17 | B6 | bidirectional | Bidirectional switch port B signal, connects to port A when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 18 | B5 | bidirectional | Bidirectional switch port B signal, connects to port A when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 19 | B4 | bidirectional | Bidirectional switch port B signal, connects to port A when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 20 | B3 | bidirectional | Bidirectional switch port B signal, connects to port A when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 21 | B2 | bidirectional | Bidirectional switch port B signal, connects to port A when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 22 | B1 | bidirectional | Bidirectional switch port B signal, connects to port A when OE low with 5 Ω typical on-state resistance and 128 mA maximum continuous channel current |
| 23 | OE | input | Active-low output enable input, low selects 5 Ω on-state resistance connecting ports A and B, high selects high-impedance disconnect |
| 24 | VCC | power_in | Positive power supply, 4 V to 5.5 V recommended operating range |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-24 |
| Category | Interface |
| Pins | 24 |
CAD (KiCad official)
- Symbol:
SN74CBT3861PWR - Footprint:
Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm - 3D model: TSSOP-24 (KiCad packages3D, STEP)
- 3D model files:
sn74cbt3861pwr-etched.step/sn74cbt3861pwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74cbt3861pwr.step/sn74cbt3861pwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (14 pp, sha256
6f31e09b5779967f, 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).