器件名称: M74VHCT157ADTR2G
功能描述: Quad 2−Channel Multiplexer
文件大小: 101.64KB 共7页
简 介:MC74VHCT157A Quad 2Channel Multiplexer
The MC74VHCT157A is an advanced high speed CMOS quad 2channel multiplexer fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. It consists of four 2input digital multiplexers with common select (S) and enable (E) inputs. When E 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. The VHCT inputs are compatible with TTL levels. This device can be used as a level converter for interfacing 3.3 V to 5.0 V because it has full 5.0 V CMOS level output swings. The VHCT157A input structures provide protection when voltages between 0 V and 5.5 V are applied, regardless of the supply voltage. The output structures also provide protection when VCC = 0 V. These input and output structures help prevent device destruction caused by supply voltageinput/output voltage mismatch, battery backup, hot insertion, etc. The inputs tolerate voltages up to 7.0 V, allowing the interface of 5.0 V systems to 3.0 V systems.
Features
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16 SOIC16 D SUFFIX CASE 751B 1 1 VHCT157AG AWLYWW
16 TSSOP16 DT SUFFIX CASE 948F 1 1 VHCT 157A ALYWG G
High Speed: tPD = 4.1 ns (Typ) at VCC = 5.0 V Low Power Dissipation: ICC = 4 mA (Max) at TA = 25°C TTLCompatible Inputs: VIL = 0.8 V; VIH = 2.0 V Power Dow……
