资料下载
74HC595D单片机介绍
wuyan2726117063
分享资料个
74HC595D，是一款单片机，属于微机的一种。
The 74HC/HCT595 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL （LSTTL）。 They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT595 is an 8-stage serial shift register with a storage register and 3-state outputs. The shift register and storage register have separate clocks. Data is shifted on the positive-going transitions of the SH_CP input. The data in each register is transferred to the storage register on a positive-going transition of the ST_CP input. If both clocks are connected together， the shift register will always be one clock pulse ahead of the storage register. The shift register has a serial input （DS） and a serial standard output （Q7’） for cascading. It is also provided with asynchronous reset （active LOW） for all 8 shift register stages. The storage register has 8 parallel 3-state bus driver outputs. Data in the storage register appears at the output whenever the output enable input （OE） is LOW.
声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉
- 相关下载
- 相关文章
