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SN74CBTLV3861DBQR

Public Made by Adom

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

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SN74CBTLV3861DBQR

Texas Instruments · Analog Switches, Multiplexers · QSOP-24

SN74CBTLV3861DBQR from Texas Instruments, in a QSOP-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 internal connection.
2 A1 bidirectional Port A bit 1, connected to B1 through the switch when OE is low.
3 A2 bidirectional Port A bit 2, connected to B2 through the switch when OE is low.
4 A3 bidirectional Port A bit 3, connected to B3 through the switch when OE is low.
5 A4 bidirectional Port A bit 4, connected to B4 through the switch when OE is low.
6 A5 bidirectional Port A bit 5, connected to B5 through the switch when OE is low.
7 A6 bidirectional Port A bit 6, connected to B6 through the switch when OE is low.
8 A7 bidirectional Port A bit 7, connected to B7 through the switch when OE is low.
9 A8 bidirectional Port A bit 8, connected to B8 through the switch when OE is low.
10 A9 bidirectional Port A bit 9, connected to B9 through the switch when OE is low.
11 A10 bidirectional Port A bit 10, connected to B10 through the switch when OE is low.
12 GND power_in Ground.
13 B10 bidirectional Port B bit 10, connected to A10 through the switch when OE is low.
14 B9 bidirectional Port B bit 9, connected to A9 through the switch when OE is low.
15 B8 bidirectional Port B bit 8, connected to A8 through the switch when OE is low.
16 B7 bidirectional Port B bit 7, connected to A7 through the switch when OE is low.
17 B6 bidirectional Port B bit 6, connected to A6 through the switch when OE is low.
18 B5 bidirectional Port B bit 5, connected to A5 through the switch when OE is low.
19 B4 bidirectional Port B bit 4, connected to A4 through the switch when OE is low.
20 B3 bidirectional Port B bit 3, connected to A3 through the switch when OE is low.
21 B2 bidirectional Port B bit 2, connected to A2 through the switch when OE is low.
22 B1 bidirectional Port B bit 1, connected to A1 through the switch when OE is low.
23 OE input Output enable: low turns the 10-bit switch on (A = B), high opens it (high impedance); tie to VCC through a pullup resistor to ensure high impedance during power up or power down, and hold at VCC or GND, never floating.
24 VCC power_in Supply voltage, 2.3 V to 3.6 V recommended (absolute maximum -0.5 V to 4.6 V).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package QSOP-24
Category Interface
Pins 24

CAD (KiCad official)

  • Symbol: SN74CBTLV3861DBQR
  • Footprint: Package_SO:QSOP-24_3.9x8.7mm_P0.635mm
  • 3D model: QSOP-24 (KiCad packages3D, STEP)
  • 3D model files: sn74cbtlv3861dbqr-etched.step / sn74cbtlv3861dbqr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74cbtlv3861dbqr.step / sn74cbtlv3861dbqr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (19 pp, sha256 a8c57af9745f61e2, retrieved 2026-10-06, tier: lcsc)
  • 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