电子发烧友App

硬声App

0
  • 聊天消息
  • 系统消息
  • 评论与回复
登录后你可以
  • 下载海量资料
  • 学习在线课程
  • 观看技术视频
  • 写文章/发帖/加入社区
会员中心
创作中心

完善资料让更多小伙伴认识你,还能领取20积分哦,立即完善>

3天内不再提示
电子发烧友网>电子资料下载>IC datasheet pdf>74HC259 pdf datasheet

74HC259 pdf datasheet

2008-08-06 | rar | 133 | 次下载 | 5积分

资料介绍

MM54HC259/MM74HC259
8-Bit Addressable Latch/3-to-8 Line Decoder
General Description
This device utilizes advanced silicon-gate CMOS technology
to implement an 8-bit addressable latch, designed for
general purpose storage applications in digital systems.
The MM54HC259/MM74HC259 has a single data input (D),
8 latch outputs (Q1±Q8), 3 address inputs (A, B, and C), a
common enable input (G), and a common CLEAR input. To
operate this device as an addressable latch, data is held on
the D input, and the address of the latch into which the data
is to be entered is held on the A, B, and C inputs. When
ENABLE is taken low the data flows through to the addressed
output. The data is stored when ENABLE transitions
from low to high. All unaddressed latches will remain
unaffected. With enable in the high state the device is deselected,
and all latches remain in their previous state, unaffected
by changes on the data or address inputs. To eliminate
the possibility of entering erroneous data into the latches,
the enable should be held high (inactive) while the address
lines are changing.
If enable is held high and CLEAR is taken low all eight latches
are cleared to a low state. If enable is low all latches
except the addressed latch will be cleared. The addressed
latch will instead follow the D input, effectively implementing
a 3-to-8 line decoder.
All inputs are protected from damage due to static discharge
by diodes to VCC and ground.
Features
Y Typical propagation delay: 18 ns
Y Wide supply range: 2±6V
Y Low input current: 1 mA maximum
Y Low quiescent current: 80 mA maximum (74HC Series)
下载该资料的人也在下载 下载该资料的人还在阅读
更多 >

评论

查看更多

下载排行

本周

  1. 1TC358743XBG评估板参考手册
  2. 1.36 MB  |  330次下载  |  免费
  3. 2开关电源基础知识
  4. 5.73 MB  |  11次下载  |  免费
  5. 3嵌入式linux-聊天程序设计
  6. 0.60 MB  |  3次下载  |  免费
  7. 4DIY动手组装LED电子显示屏
  8. 0.98 MB  |  3次下载  |  免费
  9. 5基于FPGA的C8051F单片机开发板设计
  10. 0.70 MB  |  2次下载  |  免费
  11. 651单片机窗帘控制器仿真程序
  12. 1.93 MB  |  2次下载  |  免费
  13. 751单片机PM2.5检测系统程序
  14. 0.83 MB  |  2次下载  |  免费
  15. 8基于51单片机的RGB调色灯程序仿真
  16. 0.86 MB  |  2次下载  |  免费

本月

  1. 1OrCAD10.5下载OrCAD10.5中文版软件
  2. 0.00 MB  |  234315次下载  |  免费
  3. 2555集成电路应用800例(新编版)
  4. 0.00 MB  |  33566次下载  |  免费
  5. 3接口电路图大全
  6. 未知  |  30323次下载  |  免费
  7. 4开关电源设计实例指南
  8. 未知  |  21549次下载  |  免费
  9. 5电气工程师手册免费下载(新编第二版pdf电子书)
  10. 0.00 MB  |  15349次下载  |  免费
  11. 6数字电路基础pdf(下载)
  12. 未知  |  13750次下载  |  免费
  13. 7电子制作实例集锦 下载
  14. 未知  |  8113次下载  |  免费
  15. 8《LED驱动电路设计》 温德尔著
  16. 0.00 MB  |  6656次下载  |  免费

总榜

  1. 1matlab软件下载入口
  2. 未知  |  935054次下载  |  免费
  3. 2protel99se软件下载(可英文版转中文版)
  4. 78.1 MB  |  537798次下载  |  免费
  5. 3MATLAB 7.1 下载 (含软件介绍)
  6. 未知  |  420027次下载  |  免费
  7. 4OrCAD10.5下载OrCAD10.5中文版软件
  8. 0.00 MB  |  234315次下载  |  免费
  9. 5Altium DXP2002下载入口
  10. 未知  |  233046次下载  |  免费
  11. 6电路仿真软件multisim 10.0免费下载
  12. 340992  |  191186次下载  |  免费
  13. 7十天学会AVR单片机与C语言视频教程 下载
  14. 158M  |  183279次下载  |  免费
  15. 8proe5.0野火版下载(中文版免费下载)
  16. 未知  |  138040次下载  |  免费