型号 功能描述 生产厂家 企业 LOGO 操作

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

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TI

德州仪器

更新时间:2025-12-26 22:50:01
IC供应商 芯片型号 品牌 批号 封装 库存 备注 价格
FSC
23+
NA
8000
全新原装假一赔十
TI
92+
DIP
31
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MOTOROLA/摩托罗拉
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DIP-16
826
全新原装 研究所指定供货商
TI
DIP
320
正品原装--自家现货-实单可谈
TI
25+
模块
18000
原厂直接发货进口原装
TI
2015+
SOP/DIP
19889
一级代理原装现货,特价热卖!
TI
25+
DIP
30000
代理全新原装现货,价格优势
TI
25+
DIP
2800
原装现货!可长期供货!
TI
25+
DIP
3000
全新原装、诚信经营、公司现货销售!
TI
23+
NA
3680
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