MM74HC151N

The MM74HC151N from ON Semiconductor is a high-speed 8-channel digital multiplexer utilizing advanced silicon-gate CMOS technology. It selects one of eight data sources based on the address presented on the A, B, and C inputs, and offers both true (Y) and complement (W) outputs. The device operates over a wide supply voltage range of 2V to 6V and has a typical propagation delay from data select to output Y of 26 ns.

This multiplexer is functionally and pin-out compatible with the standard 74LS logic family. All inputs are protected from static discharge damage by internal diode clamps. The MM74HC151N is housed in a 16-lead PDIP package suitable for through-hole mounting and operates within an ambient temperature range of -40°C to 85°C. It is designed to drive up to 10 LS-TTL loads and features low input current and low quiescent supply current.

Key electrical characteristics include a low input current of 1 μA maximum and a low quiescent supply current of 80 μA maximum. The output drive current is a minimum of 4 mA. The STROBE input must be at a low logic level to enable the multiplexer; a high logic level at the STROBE forces the W output HIGH and the Y output LOW.