| 型号 | 功能描述 | 生产厂家 企业 | LOGO | 操作 |
|---|---|---|---|---|
SN54LS490 | 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 |   | |
SN54LS490 | DUAL 4-BIT DECADE COUNTERS 文件：141.13 Kbytes Page：8 Pages | TI 德州仪器 | | |
SN54LS490 | DUAL 4-BIT DECADE COUNTERS | TI 德州仪器 | | |
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 | |
| IC供应商 | 芯片型号 | 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 |
|||
TI(德州仪器) |
2021+ |
8000 |
原装现货，欢迎询价 |
||||
SI-EN/矽恩 |
25+ |
SMD |
3000 |
本公司 只做全新原装正品 |
|||
24+ |
3000 |
自己现货 |
|||||
TI/德州仪器 |
24+ |
48VQFN |
750 |
只供应原装正品 欢迎询价 |
|||
TI |
25+ |
48-VQFN(7x7) |
18798 |
正规渠道,免费送样。支持账期,BOM一站式配齐 |
|||
TI |
25+ |
48-VQFN(7x7) |
18746 |
样件支持,可原厂排单订货! |
|||
TI |
23+ |
48VQFN |
3200 |
公司只做原装，可来电咨询 |
|||
TI |
25+ |
48VQFN |
20000 |
原装 |
|||
TI |
23+ |
NA |
20000 |
SN54LS490芯片相关品牌
SN54LS490规格书下载地址
SN54LS490参数引脚图相关
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