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SN54LS490J中文资料
SN54LS490J数据手册规格书PDF详情
The SN54/74LS490 contains a pair of high-speed 4-stage ripple counters. Each half of the SN54/74LS490 has individual Clock, Master Reset and Master Set (Preset 9) inputs. Each section counts in the 8, 4, 2, 1 BCD code.
• Dual Version of SN54/74LS490
• Individual Asynchronous Clear and Preset to 9 for Each Counter
• Count Frequency — Typically 65 MHz
• Input Clamp Diodes Limit High-Speed Termination Effects
更新时间：2025-10-27 16:30:00
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
MOTOROLA/摩托罗拉 |
QQ咨询 |
DIP-16 |
826 |
全新原装 研究所指定供货商 |
|||
最新 |
2000 |
原装正品现货 |
|||||
TI |
23+ |
CDIP |
3000 |
原装正品假一罚百!可开增票! |
|||
TI(德州仪器) |
2021+ |
8000 |
原装现货，欢迎询价 |
||||
TI |
23+ |
DIP |
50000 |
全新原装正品现货,支持订货 |
|||
23+ |
11200 |
原厂授权一级代理、全球订货优势渠道、可提供一站式BO |
|||||
TI |
92+ |
DIP |
31 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
|||
TI/德州仪器 |
24+ |
DIP |
1500 |
只供应原装正品 欢迎询价 |
|||
TI |
25+ |
DIP |
9453 |
||||
A |
24+ |
b |
5 |
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SN54LS490J 芯片相关型号
Datasheet数据表PDF页码索引
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