M74VHCT257ADTR2G

The M74VHCT257ADTR2G is an advanced high-speed CMOS quad 2-channel multiplexer fabricated with silicon gate CMOS technology by ON Semiconductor. It achieves high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. This device consists of four 2-input digital multiplexers with common select (S) and enable (OE) inputs. When OE is held High, selection of data is inhibited and all the outputs go Low. The select decoding determines whether the A or B inputs get routed to the corresponding Y outputs.

Key electrical specifications include a typical propagation delay of 4.1 ns at VCC = 5.0 V and low power dissipation with a maximum quiescent current of 4.0 µA at TA = 25°C. The inputs are TTL-compatible with VIL = 0.8 V and VIH = 2.0 V. The device is designed for a 2.0 V to 5.5 V operating range and offers low noise with a maximum VOLP of 0.8 V. Latchup performance exceeds 300 mA, and ESD protection is robust, with Human Body Model > 2000 V and Machine Model > 200 V.

This multiplexer is housed in a 16-TSSOP package and supports surface mount. It operates within a temperature range of -55°C to 125°C. The input structures provide protection for voltages between 0 V and 5.5 V, and the output structures protect when VCC = 0 V, preventing device destruction from supply voltage mismatches, battery backup, or hot insertion.