MM74HC157M

The MM74HC157M from Rochester Electronics is a high-speed Quad 2-Input Multiplexer utilizing advanced silicon-gate CMOS technology. It offers the high noise immunity and low power consumption characteristic of CMOS integrated circuits, while also possessing the capability to drive 10 LS-TTL loads.

This device integrates four 2-input digital multiplexers, each controlled by common select and STROBE inputs. When the STROBE input is at a logical '0', the four outputs reflect the selected inputs. Conversely, a logical '1' on the STROBE input forces all outputs to a logical '0'. The 74HC logic family ensures functional and pin-out compatibility with the standard 74LS logic family.

Key electrical specifications include a typical propagation delay of 14 ns from data to any output and a wide power supply range from 2V to 6V. It exhibits low power supply quiescent current, typically 80 μA maximum for the 74HC series, and a low input current of 1 μA maximum. The component is designed for surface mounting and comes in a 16-SOIC package.

All inputs are protected against static discharge damage through internal diode clamps to VCC and ground, enhancing reliability in various operating environments.