component
SN74CB3Q3305PWR
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, TSSOP-8. 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
markdownSN74CB3Q3305PWR
Texas Instruments · Signal Switches, Multiplexers, Decoders · TSSOP-8
SN74CB3Q3305PWR from Texas Instruments, in a TSSOP-8. 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-high output enable for switch 1; when high connects 1A to 1B with 3Ω typical ON-state resistance; requires 0.7V to 2V input level (VCC-dependent). |
| 2 | 1A | bidirectional | Bidirectional data I/O port for channel 1 supporting 0-5V signals with 3Ω typical ON-state resistance when enabled; includes undershoot clamp diode. |
| 3 | 1B | bidirectional | Bidirectional data I/O port for channel 1 supporting 0-5V signals with 3Ω typical ON-state resistance when enabled; includes undershoot clamp diode. |
| 4 | GND | power_in | Ground return connection supporting ±100mA continuous current for device and signal paths. |
| 5 | 2A | bidirectional | Bidirectional data I/O port for channel 2 supporting 0-5V signals with 3Ω typical ON-state resistance when enabled; includes undershoot clamp diode. |
| 6 | 2B | bidirectional | Bidirectional data I/O port for channel 2 supporting 0-5V signals with 3Ω typical ON-state resistance when enabled; includes undershoot clamp diode. |
| 7 | 2OE | input | Active-high output enable for switch 2; when high connects 2A to 2B with 3Ω typical ON-state resistance; requires 0.7V to 2V input level (VCC-dependent). |
| 8 | VCC | power_in | Positive supply voltage input in range 2.3V to 3.6V supporting ±100mA continuous current; powers internal charge pump and digital logic. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-8 |
| Category | Logic |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
SN74CB3Q3305PWR - Footprint:
Package_SO:TSSOP-8_3x3mm_P0.65mm - 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
sn74cb3q3305pwr-etched.step/sn74cb3q3305pwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74cb3q3305pwr.step/sn74cb3q3305pwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (23 pp, sha256
b4a77a5460a18d7c, retrieved 2026-10-05, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).