CD54HCT139F3A

The RCA CD54HCT139F3A is a high-speed CMOS logic integrated circuit featuring two independent binary to one of four decoders. Each decoder has a single active-low enable input. Data on the select inputs determines which of the four normally high outputs goes low. When the enable input is high, all outputs remain high. This device can function as a 1-to-4 line demultiplexer, with the enable input serving as the data input. It is also suitable for memory decoding, data routing, and code conversion applications.

This component utilizes HCT technology, offering direct LSTTL input logic compatibility. It operates over a wide temperature range of -55°C to 125°C. The standard outputs can drive 10 LSTTL loads, while bus driver outputs can drive 15 LSTTL loads. The maximum supply current is 160µA. The device is packaged in a CDIP (J) format and is designed for through-hole mounting.

Key specifications include a technology family of HCT, 2 channels, and a maximum supply current of 160µA. The operating temperature range is -55°C to 125°C. The fanout capabilities are 10 LSTTL loads for standard outputs and 15 LSTTL loads for bus driver outputs. It also exhibits high noise immunity, with N IL and N IH at 30% of V CC at V CC = 5V for HC types.