This document describes the features and characteristics of the CD74AC251 and CD74ACT251 8-input multiplexers from Harris Semiconductor. These multiplexers utilize Harris Advanced CMOS Logic technology and feature buffered inputs, short propagation delay, ESD protection, and low power consumption.
This document is a datasheet for the CD74AC251 and CD74ACT251 8-input multiplexers, which utilize Harris Advanced CMOS Logic technology. The devices feature buffered inputs, low propagation delay, ESD protection, and three-state outputs. They operate with a supply voltage range of 1.5V to 5.5V for AC types and 4.5V to 5.5V for ACT types.
| Typical Propagation Delay | 6ns |
|---|---|
| ESD Protection | 2kV |
| Supply Voltage Range (AC Types) | 1.5V to 5.5V |
| Supply Voltage Range (ACT Types) | 4.5V to 5.5V |
| Output Drive Current | ±24mA |
| Operating Temperature Range | -55°C to 125°C |
The OE input must be at a LOW logic level to enable the device.
When the OE input is HIGH, both outputs are in the high-impedance state.
Address information on the data select inputs determines which data input is routed to the Y and Y outputs.