component
SN74CB3Q3305DCUR
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, VSSOP-8. Datasheet-verified pinout, 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
markdownSN74CB3Q3305DCUR
Texas Instruments · Signal Switches, Multiplexers, Decoders · VSSOP-8
SN74CB3Q3305DCUR from Texas Instruments, in a VSSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1OE | input | Output Enable control input for switch 1; high level connects 1A to 1B for bidirectional data flow; low level creates high-impedance state |
| 2 | 1A | bidirectional | Channel 1 data port A with bidirectional I/O supporting 0 to 5V signal levels and 3Ω typical ON-state resistance |
| 3 | 1B | bidirectional | Channel 1 data port B with bidirectional I/O supporting 0 to 5V signal levels and 3Ω typical ON-state resistance |
| 4 | GND | power_in | Ground reference |
| 5 | 2A | bidirectional | Channel 2 data port A with bidirectional I/O supporting 0 to 5V signal levels and 3Ω typical ON-state resistance |
| 6 | 2B | bidirectional | Channel 2 data port B with bidirectional I/O supporting 0 to 5V signal levels and 3Ω typical ON-state resistance |
| 7 | 2OE | input | Output Enable control input for switch 2; high level connects 2A to 2B for bidirectional data flow; low level creates high-impedance state |
| 8 | VCC | power_in | Power supply voltage input with operating range 2.3V to 3.6V; supports internal charge pump for smooth ON-state resistance characteristics |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8 |
| Category | Logic |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
SN74CB3Q3305DCUR - Footprint:
Package_SO:VSSOP-8_2.3x2mm_P0.5mm - 3D model: VSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
sn74cb3q3305dcur-etched.step/sn74cb3q3305dcur-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74cb3q3305dcur.step/sn74cb3q3305dcur.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (23 pp, sha256
2822a01ca348ec67, retrieved 2026-09-23, 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 0.2, 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).