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DM74LS390N中文资料PDF规格书
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DM74LS390N规格书详情
General Description
Each of these monolithic circuits contains eight master-slave flip-flops and additional gating to implement two individual four-bit counters in a single package. The DM74LS390 incorporates dual divide-by-two and divideby-five counters, which can be used to implement cycle lengths equal to any whole and/or cumulative multiples of 2 and/or 5 up to divide-by-100. When connected as a bi-quinary counter, the separate divide-by-two circuit can be used to provide symmetry (a square wave) at the final output stage. The DM74LS390 has parallel outputs from each counter stage so that any submultiple of the input count frequency is available for system-timing signals.
Features
■ Dual version of the popular DM74LS90
■ DM74LS390...individual clocks for A and B flip-flops provide dual ÷ 2 and ÷ 5 counters
■ Direct clear for each 4-bit counter
■ Dual 4-bit version can significantly improve system densities by reducing counter package count by 50
■ Typical maximum count frequency...35 MHz
■ Buffered outputs reduce possibility of collector commutation
产品属性
- 型号:
DM74LS390N
- 功能描述:
计数器 IC Dl 4-Bit Dec Counter
- RoHS:
否
- 制造商:
NXP Semiconductors
- 计数器类型:
Binary Counters
- 逻辑系列:
74LV
- 位数:
10
- 工作电源电压:
1 V to 5.5 V
- 工作温度范围:
- 40 C to + 125 C
- 封装/箱体:
SOT-109
- 封装:
Reel
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
FSC |
23+ |
NA |
20000 |
全新原装假一赔十 |
询价 | ||
TI(德州仪器) |
23+ |
6000 |
询价 | ||||
FSC |
22+ |
DIP |
3500 |
原装现货,可开13%税票 |
询价 | ||
FAI |
1822+ |
DIP |
9852 |
只做原装正品假一赔十为客户做到零风险!! |
询价 | ||
FSC |
21+ |
DIP |
12588 |
原装正品,自己库存 假一罚十 |
询价 | ||
FSC |
21+ |
DIP |
95 |
原装现货假一赔十 |
询价 | ||
FAIRCHILD |
05+ |
原厂原装 |
5039 |
只做全新原装真实现货供应 |
询价 | ||
FAIRCHILD/仙童 |
23+ |
NA/ |
15 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
NS |
23+ |
QFP |
3200 |
全新原装、诚信经营、公司现货销售 |
询价 | ||
FSC |
22+ |
DIP |
2000 |
全新原装品牌专营 |
询价 |