The MC74HC4066A is a quad analog switch/multiplexer/demultiplexer that utilizes silicon-gate CMOS technology to achieve fast propagation delays, low ON resistances, and low OFF-channel leakage current. It can control analog and digital voltages that may vary across the full power-supply range (from VCC to GND). The device is identical in pinout to the metal-gate CMOS MC14016 and MC14066 and has four independent switches. The ON resistances (RON) of the device are more linear over input voltage than RON of metal-gate CMOS analog switches. The ON/OFF control inputs are compatible with standard CMOS outputs and, with pullup resistors, they are compatible with LSTTL outputs. For analog switches with voltage-level translators, see the HC4316A.
The MC74HC4066A quad analog switch/multiplexer/demultiplexer uses silicon‑gate CMOS technology to provide fast propagation, low on‑resistance, and low off‑channel leakage. It is pin‑compatible with the MC14016 and MC14066 and offers four independent bilateral switches that can handle both analog and digital voltages across the full supply range.
The device is offered in several lead‑frame packages (PDIP‑14, SOIC‑14, TSSOP‑14) with detailed electrical characteristics, maximum ratings, and recommended operating conditions. Typical performance graphs illustrate on‑resistance versus supply voltage and propagation delays for various load conditions.
| Supply Voltage (VCC) Range | 2.0 V – 12.0 V |
|---|---|
| Analog Input Voltage Range | 2.0 V – 12.0 V |
| Number of Independent Switches | 4 |
| Propagation Delay (tr = tf) | 6 ns |
It operates from 2.0 V up to 12.0 V.
The device contains four independent bilateral switches.
The propagation delay (rise and fall) is 6 ns.