器件名称:
MC74VHCT138ADR2G
功能描述:
3to8 Line Decoder
文件大小:
103.03KB 共7页
简 介:
MC74VHCT138A 3to8 Line Decoder The MC74VHCT138A is an advanced high speed CMOS 3to8 decoder fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. When the device is enabled, three Binary Select inputs (A0 A2) determine which one of the outputs (Y0 Y7) will go Low. When enable input E3 is held Low or either E2 or E1 is held High, decoding function is inhibited and all outputs go high. E3, E2, and E1 inputs are provided to ease cascade connection and for use as an address decoder for memory systems. 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 they have full 5.0 V CMOS level output swings. The VHCT138A 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 voltage input/output voltage mismatch, battery backup, hot insertion, etc. Features http://onsemi.com MARKING DIAGRAMS 16 SOIC16 D SUFFIX CASE 751B 1 1 16 TSSOP16 DT SUFFIX CASE 948F 1 1 VHCT 138A ALYWG G VHCT138AG AWLYWW High Speed: tPD = 7.6 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 Down Protection Provided on Inputs ……
