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Contents

README

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TC74HC4066AFT

TOSHIBA · Analog Switches, Multiplexers · TSSOP-14

TC74HC4066AFT from TOSHIBA, 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 1I/O bidirectional Switch 1 bidirectional signal terminal, 0 to VCC, switch through current max ±25 mA.
2 1O/I bidirectional Switch 1 bidirectional signal terminal on the opposite side, 0 to VCC, switch through current max ±25 mA.
3 2O/I bidirectional Switch 2 bidirectional signal terminal, 0 to VCC, switch through current max ±25 mA.
4 2I/O bidirectional Switch 2 bidirectional signal terminal on the opposite side, 0 to VCC, switch through current max ±25 mA.
5 2C input Control input for switch 2; switch is ON when high and OFF when low, must not float (tie to VCC or GND if unused).
6 3C input Control input for switch 3; switch is ON when high and OFF when low, must not float (tie to VCC or GND if unused).
7 GND power_in Ground (VSS), 0 V reference.
8 3I/O bidirectional Switch 3 bidirectional signal terminal, 0 to VCC, switch through current max ±25 mA.
9 3O/I bidirectional Switch 3 bidirectional signal terminal on the opposite side, 0 to VCC, switch through current max ±25 mA.
10 4O/I bidirectional Switch 4 bidirectional signal terminal, 0 to VCC, switch through current max ±25 mA.
11 4I/O bidirectional Switch 4 bidirectional signal terminal on the opposite side, 0 to VCC, switch through current max ±25 mA.
12 4C input Control input for switch 4; switch is ON when high and OFF when low, must not float (tie to VCC or GND if unused).
13 1C input Control input for switch 1; switch is ON when high and OFF when low, must not float (tie to VCC or GND if unused).
14 VCC power_in Positive supply voltage, operating range 2 to 12 V (absolute max 13 V).

Key specifications

Parameter Value
Manufacturer TOSHIBA
Package TSSOP-14
Category Interface
Pins 14

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage range VCC -0.5 13 V 3
Control input voltage VIN -0.5 V upper limit printed as VCC + 0.5 V 3
Switch I/O voltage VI/O -0.5 V upper limit printed as VCC + 0.5 V 3
Control input diode current IIK -20 20 mA 3
I/O diode current II/OK -20 20 mA 3
Switch through current IT -25 25 mA 3
DC VCC/ground current ICC -50 50 mA 3
Power dissipation PD 180 mW SOP/TSSOP package (DIP is 500 mW, Note 1) 3
Storage temperature Tstg -65 150 °C 3
Supply voltage VCC 2 12 V 3
Control input voltage VIN 0 V upper limit printed as VCC 3
Switch I/O voltage VI/O 0 V upper limit printed as VCC 3
Operating temperature Topr -40 85 °C 3
Input rise and fall time tr, tf 0 1000 ns VCC = 2.0 V 3
Input rise and fall time tr, tf 0 500 ns VCC = 4.5 V 3
Input rise and fall time tr, tf 0 400 ns VCC = 6.0 V 3
Input rise and fall time tr, tf 0 250 ns VCC = 10.0 V 3
High-level control input voltage VIHC 1.5 V VCC = 2.0 V; Ta = -40 to 85°C 4
High-level control input voltage VIHC 3.15 V VCC = 4.5 V; Ta = -40 to 85°C 4
High-level control input voltage VIHC 6.3 V VCC = 9.0 V; Ta = -40 to 85°C 4
High-level control input voltage VIHC 8.4 V VCC = 12.0 V; Ta = -40 to 85°C 4
Low-level control input voltage VILC 0.5 V VCC = 2.0 V; Ta = -40 to 85°C 4
Low-level control input voltage VILC 1.35 V VCC = 4.5 V; Ta = -40 to 85°C 4
Low-level control input voltage VILC 2.7 V VCC = 9.0 V; Ta = -40 to 85°C 4
Low-level control input voltage VILC 3.6 V VCC = 12.0 V; Ta = -40 to 85°C 4
ON resistance RON 200 Ω VIN = VIHC; VI/O = VCC to GND; II/O ≤ 1 mA; VCC = 4.5 V; Ta = -40 to 85°C 4
ON resistance RON 100 Ω VIN = VIHC; VI/O = VCC to GND; II/O ≤ 1 mA; VCC = 9.0 V; Ta = -40 to 85°C 4
ON resistance RON 90 Ω VIN = VIHC; VI/O = VCC to GND; II/O ≤ 1 mA; VCC = 12.0 V; Ta = -40 to 85°C 4
ON resistance RON 130 Ω VIN = VIHC; VI/O = VCC or GND; II/O ≤ 1 mA; VCC = 4.5 V; Ta = -40 to 85°C 4
ON resistance RON 95 Ω VIN = VIHC; VI/O = VCC or GND; II/O ≤ 1 mA; VCC = 9.0 V; Ta = -40 to 85°C 4
Input/output leakage current (switch off) IOFF -1000 1000 nA VOS = VCC or GND; VIS = GND or VCC; VIN = VILC; VCC = 12.0 V; Ta = -40 to 85°C 4
Switch input leakage current (switch on, output open) IIZ -1000 1000 nA VOS = VCC or GND; VIN = VIHC; VCC = 12.0 V; Ta = -40 to 85°C 4
Control input current IIN -1000 1000 nA VIN = VCC or GND; VCC = 12.0 V; Ta = -40 to 85°C 4
Quiescent supply current ICC 10 μA VIN = VCC or GND; VCC = 6.0 V; Ta = -40 to 85°C 4
Quiescent supply current ICC 40 μA VIN = VCC or GND; VCC = 9.0 V; Ta = -40 to 85°C 4
Quiescent supply current ICC 80 μA VIN = VCC or GND; VCC = 12.0 V; Ta = -40 to 85°C 4
Phase difference between input and output φI-O 65 ns CL = 50 pF, tr = tf = 6 ns; VCC = 2.0 V; Ta = -40 to 85°C 5
Phase difference between input and output φI-O 13 ns CL = 50 pF, tr = tf = 6 ns; VCC = 4.5 V; Ta = -40 to 85°C 5
Phase difference between input and output φI-O 10 ns CL = 50 pF, tr = tf = 6 ns; VCC = 9.0 V; Ta = -40 to 85°C 5
Phase difference between input and output φI-O 9 ns CL = 50 pF, tr = tf = 6 ns; VCC = 12.0 V; Ta = -40 to 85°C 5
Output enable time tpZL, tpZH 125 ns RL = 1 kΩ, CL = 50 pF; VCC = 2.0 V; Ta = -40 to 85°C 5
Output enable time tpZL, tpZH 25 ns RL = 1 kΩ, CL = 50 pF; VCC = 4.5 V; Ta = -40 to 85°C 5
Output enable time tpZL, tpZH 22 ns RL = 1 kΩ, CL = 50 pF; VCC = 9.0 V; Ta = -40 to 85°C 5
Output enable time tpZL, tpZH 18 ns RL = 1 kΩ, CL = 50 pF; VCC = 12.0 V; Ta = -40 to 85°C 5
Output disable time tpLZ, tpHZ 145 ns RL = 1 kΩ, CL = 50 pF; VCC = 2.0 V; Ta = -40 to 85°C 5
Output disable time tpLZ, tpHZ 29 ns RL = 1 kΩ, CL = 50 pF; VCC = 4.5 V; Ta = -40 to 85°C 5
Output disable time tpLZ, tpHZ 25 ns RL = 1 kΩ, CL = 50 pF; VCC = 9.0 V; Ta = -40 to 85°C 5
Output disable time tpLZ, tpHZ 22 ns RL = 1 kΩ, CL = 50 pF; VCC = 12.0 V; Ta = -40 to 85°C 5
Control input capacitance CIN 10 pF Ta = -40 to 85°C 5

CAD (KiCad official)

  • Symbol: TC74HC4066AFT
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: tc74hc4066aft-etched.step / tc74hc4066aft-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tc74hc4066aft.step / tc74hc4066aft.glb are the bare package body.

Provenance

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

  • Datasheet: TOSHIBA datasheet (12 pp, sha256 fc69493de36746d4, retrieved 2026-10-18, tier: lcsc)
  • 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