EEPW首页 | 器件索引 | 厂商列表 | IC替换 | 微缩略语 | 电路图查询
器件查询:
400万器件资料库等您来搜!
   首页 > SLS > SL74HC138

SL74HC138

器件名称: SL74HC138
功能描述: 1-of-8 Decoder/Demultiplexer
文件大小: 51.55KB    共5页
生产厂商: SLS
下  载:    在线浏览   点击下载
简  介:SL74HC138 1-of-8 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS The SL74HC138 is identical in pinout to the LS/ALS138. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. The SL74HC138 decodes a three-bit Address to one-of-eight activelow outputs. This device features three Chip Select inputs, two activelow and one active-high to facilitate the demultiplexing, cascading, and chip-selecting functions. The demultiplexing function is accomplished by using the Address inputs to select the desired device output; one of the Chip Selects is used as a data input while the other Chip Selects are held in their active states. Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 2.0 to 6.0 V Low Input Current: 1.0 A High Noise Immunity Characteristic of CMOS Devices ORDERING INFORMATION SL74HC138N Plastic SL74HC138D SOIC TA = -55° to 125° C for all packages PIN ASSIGNMENT LOGIC DIAGRAM FUNCTION TABLE Inputs CS1 CS2 CS3 X X H X H X L X X H H H H H H H H L L L L L L L L L L L L L L L L A2 A1 A0 X X X X X X X X X LL L L L H L H L L H H H L L H L H H H L H H H Outputs Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 H H H H H H H H H H H H H H H H H H H H H H H H L H H H H H H H H L H H H H H H H H L H H H H H H H H L H H H H H H H H H H H H H H H H H H H H PIN 16 =VCC PIN 8 = GND L H H H H L H H H H L H H H H L H = high level (steady state) L = low level (steady state) X = don’t care SLS System ……
相关电子器件
器件名 功能描述 生产厂商
SL74HC138N 1-of-8 Decoder/Demultiplexer SLS
SL74HC138D 1-of-8 Decoder/Demultiplexer SLS
SL74HC138 1-of-8 Decoder/Demultiplexer SLS
《电子产品世界》杂志社 版权所有 北京东晓国际技术信息咨询有限公司
Copyright ©2002 ELECTRONIC ENGINEERING & PRODUCT WORLD. All rights reserved.
京ICP备12027778号-2