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SN74CBTD3861DBQR

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Texas Instruments Analog Switches, Multiplexers, SSOP-24-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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SN74CBTD3861DBQR

Texas Instruments · Analog Switches, Multiplexers · SSOP-24-150mil

SN74CBTD3861DBQR from Texas Instruments, in a SSOP-24-150mil. 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 NC unconnected No internal connection.
2 A1 bidirectional Port A, bit 1 of 10-bit FET bus switch; connected to B1 when OE is low (ron 5 Ω typ / 7 Ω max at VCC = 4.5 V); high-impedance when OE is high; supports 5 V to 3.3 V level shifting via on-die diode to VCC.
3 A2 bidirectional Port A, bit 2 of 10-bit FET bus switch; connected to B2 when OE is low (ron 5 Ω typ / 7 Ω max at VCC = 4.5 V); high-impedance when OE is high.
4 A3 bidirectional Port A, bit 3 of 10-bit FET bus switch; connected to B3 when OE is low (ron 5 Ω typ / 7 Ω max at VCC = 4.5 V); high-impedance when OE is high.
5 A4 bidirectional Port A, bit 4 of 10-bit FET bus switch; connected to B4 when OE is low (ron 5 Ω typ / 7 Ω max at VCC = 4.5 V); high-impedance when OE is high.
6 A5 bidirectional Port A, bit 5 of 10-bit FET bus switch; connected to B5 when OE is low (ron 5 Ω typ / 7 Ω max at VCC = 4.5 V); high-impedance when OE is high.
7 A6 bidirectional Port A, bit 6 of 10-bit FET bus switch; connected to B6 when OE is low (ron 5 Ω typ / 7 Ω max at VCC = 4.5 V); high-impedance when OE is high.
8 A7 bidirectional Port A, bit 7 of 10-bit FET bus switch; connected to B7 when OE is low (ron 5 Ω typ / 7 Ω max at VCC = 4.5 V); high-impedance when OE is high.
9 A8 bidirectional Port A, bit 8 of 10-bit FET bus switch; connected to B8 when OE is low (ron 5 Ω typ / 7 Ω max at VCC = 4.5 V); high-impedance when OE is high.
10 A9 bidirectional Port A, bit 9 of 10-bit FET bus switch; connected to B9 when OE is low (ron 5 Ω typ / 7 Ω max at VCC = 4.5 V); high-impedance when OE is high.
11 A10 bidirectional Port A, bit 10 of 10-bit FET bus switch; connected to B10 when OE is low (ron 5 Ω typ / 7 Ω max at VCC = 4.5 V); high-impedance when OE is high.
12 GND power_in Ground reference, 0 V.
13 B10 bidirectional Port B, bit 10 of 10-bit FET bus switch; connected to A10 when OE is low; high-impedance when OE is high; continuous channel current rating 128 mA.
14 B9 bidirectional Port B, bit 9 of 10-bit FET bus switch; connected to A9 when OE is low; high-impedance when OE is high; continuous channel current rating 128 mA.
15 B8 bidirectional Port B, bit 8 of 10-bit FET bus switch; connected to A8 when OE is low; high-impedance when OE is high; continuous channel current rating 128 mA.
16 B7 bidirectional Port B, bit 7 of 10-bit FET bus switch; connected to A7 when OE is low; high-impedance when OE is high; continuous channel current rating 128 mA.
17 B6 bidirectional Port B, bit 6 of 10-bit FET bus switch; connected to A6 when OE is low; high-impedance when OE is high; continuous channel current rating 128 mA.
18 B5 bidirectional Port B, bit 5 of 10-bit FET bus switch; connected to A5 when OE is low; high-impedance when OE is high; continuous channel current rating 128 mA.
19 B4 bidirectional Port B, bit 4 of 10-bit FET bus switch; connected to A4 when OE is low; high-impedance when OE is high; continuous channel current rating 128 mA.
20 B3 bidirectional Port B, bit 3 of 10-bit FET bus switch; connected to A3 when OE is low; high-impedance when OE is high; continuous channel current rating 128 mA.
21 B2 bidirectional Port B, bit 2 of 10-bit FET bus switch; connected to A2 when OE is low; high-impedance when OE is high; continuous channel current rating 128 mA.
22 B1 bidirectional Port B, bit 1 of 10-bit FET bus switch; connected to A1 when OE is low; high-impedance when OE is high; continuous channel current rating 128 mA.
23 OE input Active-low output enable (TTL-compatible); VIH = 2 V min, VIL = 0.8 V max; low = switch on (A = B), high = high-impedance; ten = 10 ns max, tdis = 6 ns max.
24 VCC power_in Supply voltage; recommended operating range 4.5 V to 5.5 V; ICC = 1.5 mA max at VCC = 5.5 V, IO = 0; absolute maximum -0.5 V to 7 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SSOP-24-150mil
Category Interface
Pins 24

CAD (KiCad official)

  • Symbol: SN74CBTD3861DBQR
  • Footprint: Package_SO:SSOP-24_5.3x8.2mm_P0.65mm
  • 3D model: SSOP-24-150mil (KiCad packages3D, STEP)
  • 3D model files: sn74cbtd3861dbqr-etched.step / sn74cbtd3861dbqr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74cbtd3861dbqr.step / sn74cbtd3861dbqr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (20 pp, sha256 65a94b376daf13d4, retrieved 2026-09-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-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).

Datasheet PDF