component
SN74CBT3305CPWR
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
markdownSN74CBT3305CPWR
Texas Instruments · Signal Switches, Multiplexers, Decoders · TSSOP-8
SN74CBT3305CPWR 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 | Output-enable input for bus switch 1; high connects 1A to 1B, low gives high impedance between them, and it can be driven by TTL or 5-V/3.3-V CMOS outputs. |
| 2 | 1A | bidirectional | Bus switch 1 A port, connected to 1B when 1OE is high, with undershoot protection down to -2 V and 0 to 5.5 V data voltage range. |
| 3 | 1B | bidirectional | Bus switch 1 B port, connected to 1A when 1OE is high, with undershoot protection down to -2 V and 0 to 5.5 V data voltage range. |
| 4 | GND | power_in | Ground pin; continuous current through VCC or GND is limited to ±100 mA. |
| 5 | 2A | bidirectional | Bus switch 2 A port, connected to 2B when 2OE is high, with undershoot protection down to -2 V and 0 to 5.5 V data voltage range. |
| 6 | 2B | bidirectional | Bus switch 2 B port, connected to 2A when 2OE is high, with undershoot protection down to -2 V and 0 to 5.5 V data voltage range. |
| 7 | 2OE | input | Output-enable input for bus switch 2; high connects 2A to 2B, low gives high impedance between them, and it can be driven by TTL or 5-V/3.3-V CMOS outputs. |
| 8 | VCC | power_in | Supply voltage pin with a recommended operating range of 4 V to 5.5 V and an absolute maximum of 7 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-8 |
| Category | Logic |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
SN74CBT3305CPWR - Footprint:
Package_SO:TSSOP-8_3x3mm_P0.65mm - 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
sn74cbt3305cpwr-etched.step/sn74cbt3305cpwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74cbt3305cpwr.step/sn74cbt3305cpwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (18 pp, sha256
96456caabbbe6397, retrieved 2026-10-06, 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).