CD74HCT137E

The CD74HCT137E from Texas Instruments is a high-speed silicon gate CMOS decoder/demultiplexer. It is well-suited for memory address decoding or data routing applications. This device features low power consumption characteristic of CMOS circuitry while maintaining speeds comparable to low power Schottky TTL logic.

The CD74HCT137E has three binary select inputs (A0, A1, and A2) that can be latched by an active High Latch Enable (LE) signal to isolate the outputs from select-input changes. When LE is low, the output is transparent to the input, and the circuit functions as a one-of-eight decoder. It also includes two Output Enable inputs (OE\1 and OE0) for simplifying cascading.

This decoder/demultiplexer operates within a voltage range of 4.5V to 5.5V and has an operating temperature range of -55°C to 125°C. It is supplied in a 16-PDIP through-hole package. The typical propagation delay is 13ns at VCC = 5V, 15pF, and TA = 25°C.

Key specifications include a supply current of 4mA (max), and it is designed for single supply operation. The device is classified under the HCT technology family.