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SN74LS669J规格书详情
SYNCHRONOUS 4-BIT UP/DOWN COUNTER
The SN54/74LS669 is a synchronous 4-bit up/down counter. The LS669 is a 4-bit binary counter. For high speed counting applications, this presettable counter features an internal carry lookahead for cascading purposes. By clocking all flip-flops simultaneously so the outputs change coincident with each other (when instructed to do so by the count enable inputs and internal gating) synchronous operation is provided. This helps to eliminate output counting spikes, normally associated with asynchronous (ripple-clock) counters. The four master-slave flip-flops are triggered on the rising (positive-going) edge of the clock waveform by a buffered clock input.
•Programmable Look-Ahead Up/Down Binary/Decade Counters
•Fully Synchronous Operation for Counting and Programming
•Internal Look-Ahead for Fast Counting
•Carry Output for n-Bit Cascading
•Fully Independent Clock Circuit
•Buffered Outputs
产品属性
- 型号:
SN74LS669J
- 制造商:
Texas Instruments
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
2020+ |
DIP |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
TI/德州仪器 |
23+ |
NA/ |
5185 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
TI |
23+ |
NA |
19854 |
专业电子元器件供应链正迈科技特价代理QQ1304306553 |
询价 | ||
TI(德州仪器) |
23+ |
PDIP16 |
6000 |
诚信服务,绝对原装原盘 |
询价 | ||
TI/德州仪器 |
21+ |
DIP16 |
1709 |
询价 | |||
TI/德州仪器 |
22+ |
DIP16 |
20000 |
原装现货,实单支持 |
询价 | ||
TI/德州仪器 |
22+ |
DIP16 |
12245 |
现货,原厂原装假一罚十! |
询价 | ||
8515 |
50 |
公司优势库存 热卖中! |
询价 | ||||
TI |
2016+ |
DIP16 |
6528 |
只做进口原装现货!假一赔十! |
询价 | ||
TI/德州仪器 |
DIP16 |
90000 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 |