| 型号 | 功能描述 | 生产厂家 企业 | LOGO | 操作 |
|---|---|---|---|---|
SN54LS490J | DUAL DECADE COUNTER 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 | MOTOROLA 摩托罗拉 |   | |
DUAL DECADE COUNTER 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 | MOTOROLA 摩托罗拉 | | ||
DUAL 4-BIT DECADE COUNTERS 文件：141.13 Kbytes Page：8 Pages | TI 德州仪器 | |
| IC供应商 | 芯片型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
SI-EN |
23+ |
0QFN8-2X20QFN16-3X3 |
3000 |
一级代理原厂VIP渠道,专注军工、汽车、医疗、工业、 |
|||
SIEN |
2026+ |
- |
28000 |
绝对原装正品/真实库存/绝无虚假/支持送货 |
|||
TI |
三年内 |
1983 |
只做原装正品 |
||||
TI |
2511 |
48VQFN |
3200 |
电子元器件采购降本 30%!原厂直采,砍掉中间差价 |
|||
SI-EN |
20+ |
SMD |
32970 |
原装优势主营型号-可开原型号增税票 |
|||
SI-EN/矽恩 |
25+ |
SMD |
90000 |
全新原装现货 |
|||
Texas Instruments |
24+ |
48-VQFN(7x7) |
65200 |
一级代理/放心采购 |
|||
TI |
23+ |
CDIP |
3000 |
原装正品假一罚百!可开增票! |
|||
EUTECH/SI-EN |
23+ |
N/A |
50000 |
全新原装正品现货,支持订货 |
|||
TI/德州仪器 |
24+ |
48VQFN |
750 |
只供应原装正品 欢迎询价 |
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SN54LS490J规格书下载地址
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