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SN74CB3Q3384ADBQR

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

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SN74CB3Q3384ADBQR

Texas Instruments · Signal Switches, Multiplexers, Decoders · SSOP-24-150mil

SN74CB3Q3384ADBQR 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 1OE input Active-low output enable for the first 5-bit switch group (1A1-1A5 to 1B1-1B5); when low the group is on, when high the A and B ports are disconnected (high impedance), and OE must be pulled up to VCC per the datasheet.
2 1B1 bidirectional B-side data I/O of switch 1 that connects to 1A1 when 1OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
3 1A1 bidirectional A-side data I/O of switch 1 that connects to 1B1 when 1OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
4 1A2 bidirectional A-side data I/O of switch 2 that connects to 1B2 when 1OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
5 1B2 bidirectional B-side data I/O of switch 2 that connects to 1A2 when 1OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
6 1B3 bidirectional B-side data I/O of switch 3 that connects to 1A3 when 1OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
7 1A3 bidirectional A-side data I/O of switch 3 that connects to 1B3 when 1OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
8 1A4 bidirectional A-side data I/O of switch 4 that connects to 1B4 when 1OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
9 1B4 bidirectional B-side data I/O of switch 4 that connects to 1A4 when 1OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
10 1B5 bidirectional B-side data I/O of switch 5 that connects to 1A5 when 1OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
11 1A5 bidirectional A-side data I/O of switch 5 that connects to 1B5 when 1OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
12 GND power_in Ground reference for all device voltages; all voltages are referenced to ground.
13 2OE input Active-low output enable for the second 5-bit switch group (2A1-2A5 to 2B1-2B5); when low the group is on, when high the A and B ports are high impedance, and OE must be pulled up to VCC per the datasheet.
14 2A1 bidirectional A-side data I/O of switch 6 that connects to 2B1 when 2OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
15 2B1 bidirectional B-side data I/O of switch 6 that connects to 2A1 when 2OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
16 2B2 bidirectional B-side data I/O of switch 7 that connects to 2A2 when 2OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
17 2A2 bidirectional A-side data I/O of switch 7 that connects to 2B2 when 2OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
18 2A3 bidirectional A-side data I/O of switch 8 that connects to 2B3 when 2OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
19 2B3 bidirectional B-side data I/O of switch 8 that connects to 2A3 when 2OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
20 2B4 bidirectional B-side data I/O of switch 9 that connects to 2A4 when 2OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
21 2A4 bidirectional A-side data I/O of switch 9 that connects to 2B4 when 2OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
22 2A5 bidirectional A-side data I/O of switch 10 that connects to 2B5 when 2OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
23 2B5 bidirectional B-side data I/O of switch 10 that connects to 2A5 when 2OE is low; data I/O supports 0 to 5.5 V recommended operating voltage.
24 VCC power_in Supply voltage, recommended range 2.3 V to 3.6 V (absolute maximum 4.6 V).

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74CB3Q3384ADBQR
  • Footprint: Package_SO:SSOP-24_5.3x8.2mm_P0.65mm
  • 3D model: SSOP-24-150mil (KiCad packages3D, STEP)
  • 3D model files: sn74cb3q3384adbqr-etched.step / sn74cb3q3384adbqr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74cb3q3384adbqr.step / sn74cb3q3384adbqr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (22 pp, sha256 51bc27fb71e43a34, retrieved 2026-10-08, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (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