Intersil CD74ACT139E

解码器/多路分解器1 x 2：44.5V ~ 5.5V

Overview

The ’ACT139 devices are dual 2-line to 4-line decoders/demultiplexers designed for 4.5-V to 5.5-V VCC operation. These devices are designed to be used in high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. When used with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.

The active-low enable (G)\ input can be used as a data line in demultiplexing applications. These decoders/demultiplexers feature fully buffered inputs, each of which represents only one normalized load to its driving circuit.

Features

74ACT Series
Supplied in the 16-DIP (0.300, 7.62mm) package
Adopting a supply type of Single
Power supplies of 5V
Operating with the supply voltage of 5V

Through Hole Mounting Type

Applications

There are a lot of Texas Instruments
CD74ACT139E Signal Switches / Multiplexers / Decoders applications.

• Communication system
• Telephone network
• Computer memory
• Transmission from the computer system of a satellite
• Time division multiplexing system
• Frequency multiplexing system
• A/D converters
• D/A converters
• Implementing boolean functions with multiple variables
• Data collection system