component
CD74HCT4066QPWRQ1
Public Made by Adomby adom
Texas Instruments Analog Switches, Multiplexers, TSSOP-14. 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
markdownCD74HCT4066QPWRQ1
Texas Instruments · Analog Switches, Multiplexers · TSSOP-14
CD74HCT4066QPWRQ1 from Texas Instruments, in a TSSOP-14. 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 | 1Y | bidirectional | Input/output terminal for switch 1, which conducts when its control input 1E is high. |
| 2 | 1Z | bidirectional | Input/output terminal for switch 1, which conducts when its control input 1E is high. |
| 3 | 2Z | bidirectional | Input/output terminal for switch 2, which conducts when its control input 2E is high. |
| 4 | 2Y | bidirectional | Input/output terminal for switch 2, which conducts when its control input 2E is high. |
| 5 | 2E | input | Control input for switch 2; a high-level voltage turns the switch on and a low level turns it off. |
| 6 | 3E | input | Control input for switch 3; a high-level voltage turns the switch on and a low level turns it off. |
| 7 | GND | power_in | Ground pin; all voltages are referenced to GND. |
| 8 | 3Y | bidirectional | Input/output terminal for switch 3, which conducts when its control input 3E is high. |
| 9 | 3Z | bidirectional | Input/output terminal for switch 3, which conducts when its control input 3E is high. |
| 10 | 4Z | bidirectional | Input/output terminal for switch 4, which conducts when its control input 4E is high. |
| 11 | 4Y | bidirectional | Input/output terminal for switch 4, which conducts when its control input 4E is high. |
| 12 | 4E | input | Control input for switch 4; a high-level voltage turns the switch on and a low level turns it off. |
| 13 | 1E | input | Control input for switch 1; a high-level voltage turns the switch on and a low level turns it off. |
| 14 | VCC | power_in | Power supply pin; the recommended supply voltage range is 4.5 V to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-14 |
| Category | Interface |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
CD74HCT4066QPWRQ1 - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
cd74hct4066qpwrq1-etched.step/cd74hct4066qpwrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cd74hct4066qpwrq1.step/cd74hct4066qpwrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (22 pp, sha256
803b7f2488ff97a8, 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, primaryclaude-haiku-5-5(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).