74LS168中文资料PDF规格书
74LS168规格书详情
BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS
The SN54/74LS168 and SN54/74LS169 are fully synchronous 4-stage up/down counters featuring a preset capability for programmable operation, carry lookahead for easy cascading and a U/D input to control the direction of counting. The SN54/74LS168 counts in a BCD decade (8, 4, 2, 1) sequence, while the SN54/74LS169 operates in a Modulo 16 binary sequence. All state changes, whether in counting or parallel loading, are initiated by the LOW-to-HIGH transition of the clock.
• Low Power Dissipation 100 mW Typical
• High-Speed Count Frequency 30 MHz Typical
• Fully Synchronous Operation
• Full Carry Lookahead for Easy Cascading
• Single Up/Down Control Input
• Positive Edge-Trigger Operation
• Input Clamp Diodes Limit High-Speed Termination Effects
产品属性
- 型号:
74LS168
- 制造商:
NSC
- 制造商全称:
National Semiconductor
- 功能描述:
54LS168 Synchronous Bi-Directional BCD Decade Counter
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
SGS |
23+ |
DIP16 |
8500 |
全新原装现货,公司只做原装。 |
询价 | ||
ST |
23+ |
DIP16 |
16900 |
正规渠道,只有原装! |
询价 | ||
23+ |
N/A |
65210 |
正品授权货源可靠 |
询价 | |||
FSC |
2019 |
NA |
55000 |
特价甩卖现货支持 |
询价 | ||
TI |
2022 |
500 |
原厂原装正品,价格超越代理 |
询价 | |||
FSC |
2020+ |
DIP-16 |
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 | ||
SGS |
2021+ |
DIP |
5000 |
原厂授权代理,海外优势订货渠道。可提供大量库存,详 |
询价 | ||
FAIRCHILD/仙童 |
23+ |
81+ |
6500 |
专注配单,只做原装进口现货 |
询价 | ||
PHIL |
23+ |
NA |
20000 |
全新原装假一赔十 |
询价 | ||
FSC |
22+23+ |
DIP-16 |
33888 |
绝对原装正品全新进口深圳现货 |
询价 |