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SN74LS290N中文资料PDF规格书
SN74LS290N规格书详情
DECADE COUNTER; 4-BIT BINARY COUNTER
The SN54 /74LS290 and SN54 /74LS293 are high-speed 4-bit ripple type counters partitioned into two sections. Each counter has a divide-by-two section and either a divide-by-five (LS290) or divide-by-eight (LS293) section which are triggered by a HIGH-to-LOW transition on the clock inputs. Each section can be used separately or tied together (Q to CP)to form BCD, Bi-quinary, or Modulo-16 counters. Both of the counters have a 2-input gated Master Reset (Clear), and the LS290 also has a 2-input gated Master Set (Preset 9).
• Corner Power Pin Versions of the LS90 and LS93
• Low Power Consumption . . . Typically 45 mW
• High Count Rates . . . Typically 42 MHz
• Choice of Counting Modes . . . BCD, Bi-Quinary, Binary
• Input Clamp Diodes Limit High Speed Termination Effects
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
22+ |
DIP |
2987 |
只售原装自家现货!诚信经营!欢迎来电! |
询价 | ||
DIP14 |
3 |
自己现货 |
询价 | ||||
TI/德州仪器 |
23+ |
DIP14 |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
TI |
0535+ |
DIP |
200 |
只有原装!只做原装!一片起卖! |
询价 | ||
TI |
2017+ |
DIP |
6528 |
只做原装正品假一赔十! |
询价 | ||
TI |
22 |
DIP14 |
39890 |
3月31原装,微信报价 |
询价 | ||
TI |
1408+ |
8000 |
PDIP16 |
询价 | |||
TI |
21+ |
DIP14 |
39890 |
全新原装现货,假一赔十 |
询价 | ||
TI |
1824+ |
DIP14 |
1370 |
原装现货专业代理,可以代拷程序 |
询价 | ||
MOTOROLA/摩托罗拉 |
23+ |
NA |
880000 |
明嘉莱只做原装正品现货 |
询价 |