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DM74LS390M 数据表 (PDF) - Fairchild Semiconductor

DM74LS390M Datasheet PDF - Fairchild Semiconductor
部件名 DM74LS390M
下载  DM74LS390M 下载

文件大小   58.14 Kbytes
  6 Pages
制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor
功能描述 Dual 4-Bit Decade Counter

DM74LS390M Datasheet (PDF)

Go To PDF Page 下载 数据表
DM74LS390M Datasheet PDF - Fairchild Semiconductor

部件名 DM74LS390M
下载  DM74LS390M Click to download

文件大小   58.14 Kbytes
  6 Pages
制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor
功能描述 Dual 4-Bit Decade Counter

DM74LS390M 数据表 (HTML) - Fairchild Semiconductor

DM74LS390M Datasheet HTML 1Page - Fairchild Semiconductor DM74LS390M Datasheet HTML 2Page - Fairchild Semiconductor DM74LS390M Datasheet HTML 3Page - Fairchild Semiconductor DM74LS390M Datasheet HTML 4Page - Fairchild Semiconductor DM74LS390M Datasheet HTML 5Page - Fairchild Semiconductor DM74LS390M Datasheet HTML 6Page - Fairchild Semiconductor

DM74LS390M 产品详情

General Description
Each of these monolithic circuits contains eight master-slave flip-flops and additional gating to implement two individual four-bit counters in a single package. The DM74LS390 incorporates dual divide-by-two and divideby-five counters, which can be used to implement cycle lengths equal to any whole and/or cumulative multiples of 2 and/or 5 up to divide-by-100. When connected as a bi-quinary counter, the separate divide-by-two circuit can be used to provide symmetry (a square wave) at the final output stage. The DM74LS390 has parallel outputs from each counter stage so that any submultiple of the input count frequency is available for system-timing signals.

Features
■ Dual version of the popular DM74LS90
■ DM74LS390...individual clocks for A and B flip-flops provide dual ÷ 2 and ÷ 5 counters
■ Direct clear for each 4-bit counter
■ Dual 4-bit version can significantly improve system densities by reducing counter package count by 50%
■ Typical maximum count frequency...35 MHz
■ Buffered outputs reduce possibility of collector commutation




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关于 Fairchild Semiconductor


Fairchild半导体是一家开创性的半导体公司,成立于1950年代后期。
该公司以其在第一个商业晶体管的开发方面的创新而闻名,以及对综合电路技术发展的贡献。
Fairchild成为电力半导体,模拟和混合信号综合电路以及其他半导体产品的领先供应商。
该公司是在2016年被ON半导体收购的,其产品和技术继续在ON半导体品牌下开发和出售。

*此信息仅供一般参考,对于因上述信息造成的任何损失或损害,我们概不负责。




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