74191中文资料PDF规格书
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74191规格书详情
General Description
The DM74LS191 circuit is a synchronous, reversible, up/down counter. Synchronous operation is provided by having all flip-flops clocked simultaneously, so that the outputs change simultaneously when so instructed by the steering logic. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple clock) counters.
Features
■ Counts binary
■ Single down/up count control line
■ Count enable control input
■ Ripple clock output for cascading
■ Asynchronously presettable with load control
■ Parallel outputs
■ Cascadable for n-bit applications
■ Average propagation delay 20 ns
■ Typical clock frequency 25 MHz
■ Typical power dissipation 100 mW
产品属性
- 型号:
74191
- 制造商:
NSC
- 制造商全称:
National Semiconductor
- 功能描述:
Synchronous Up/Down 4-Bit Binary Counter with Mode Control
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
onsemi(安森美) |
23+ |
PDIP16 |
6000 |
询价 | |||
FAIRCHILD/仙童 |
23+ |
NA/ |
65 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
FSC |
21+ |
DIP |
65 |
原装现货假一赔十 |
询价 | ||
MOL |
23+ |
NA |
111 |
专做原装正品,假一罚百! |
询价 | ||
FSC |
2206+ |
DIP |
11514 |
一级代理/分销渠道价格优势 十年芯程一路只做原装正品 |
询价 | ||
FSC/Fairchild Semiconductor Co |
21+ |
DIP |
65 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
ITT |
QQ咨询 |
CDIP |
827 |
全新原装 研究所指定供货商 |
询价 | ||
74192PC |
2 |
2 |
询价 | ||||
FSC |
8920 |
DIP |
65 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
TE |
2332+ |
275591 |
一级代理,原装正品! |
询价 |