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SN54LS490J中文资料摩托罗拉数据手册PDF规格书
SN54LS490J规格书详情
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
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
TI |
23+ |
NA |
3680 |
专业电子元器件供应链正迈科技特价代理QQ1304306553 |
询价 | ||
TI |
23+ |
DIP |
3000 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
TI |
2016+ |
DIP |
6528 |
只做进口原装现货!或订货,假一赔十! |
询价 | ||
TI/德州仪器 |
22+ |
CDIP |
12245 |
现货,原厂原装假一罚十! |
询价 | ||
TI/TEXAS |
23+ |
DIP陶瓷 |
8931 |
询价 | |||
最新 |
2000 |
原装正品现货 |
询价 | ||||
TI |
23+ |
DIP |
30000 |
代理全新原装现货,价格优势 |
询价 | ||
TI |
17+ |
DIP |
6200 |
100%原装正品现货 |
询价 | ||
TI |
2015+ |
SOP/DIP |
19889 |
一级代理原装现货,特价热卖! |
询价 | ||
TI |
2020+ |
DIP |
80 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
询价 |
