资料下载
×
74LS85/54LS85/DM54LS85/DM74LS8
消耗积分:3 |
格式:rar |
大小:133 |
2008-08-06
生龙活虎3
分享资料个
54LS85/DM54LS85/DM74LS85
4-Bit Magnitude Comparators
General Description
These 4-bit magnitude comparators perform comparison of
straight binary or BCD codes. Three fully-decoded decisions
about two, 4-bit words (A, B) are made and are externally
available at three outputs. These devices are fully expandable
to any number of bits without external gates. Words of
greater length may be compared by connecting comparators
in cascade. The A l B, A k B, and A e B outputs of a
stage handling less-significant bits are connected to the corresponding
inputs of the next stage handling more-significant
bits. The stage handling the least-significant bits must
have a high-level voltage applied to the A e B input. The
cascading path is implemented with only a two-gate-level
delay to reduce overall comparison times for long words.
Features
Y Typical power dissipation 52 mW
Y Typical delay (4-bit words) 24 ns
Y Alternate Military/Aerospace device (54LS85) is available.
Contact a National Semiconductor Sales Office/
Distributor for specifications.
4-Bit Magnitude Comparators
General Description
These 4-bit magnitude comparators perform comparison of
straight binary or BCD codes. Three fully-decoded decisions
about two, 4-bit words (A, B) are made and are externally
available at three outputs. These devices are fully expandable
to any number of bits without external gates. Words of
greater length may be compared by connecting comparators
in cascade. The A l B, A k B, and A e B outputs of a
stage handling less-significant bits are connected to the corresponding
inputs of the next stage handling more-significant
bits. The stage handling the least-significant bits must
have a high-level voltage applied to the A e B input. The
cascading path is implemented with only a two-gate-level
delay to reduce overall comparison times for long words.
Features
Y Typical power dissipation 52 mW
Y Typical delay (4-bit words) 24 ns
Y Alternate Military/Aerospace device (54LS85) is available.
Contact a National Semiconductor Sales Office/
Distributor for specifications.
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
评论(0)
发评论
- 相关下载
- 相关文章
