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7490ADC中文資料etc未分類制造商數(shù)據(jù)手冊PDF規(guī)格書

廠商型號	7490ADC
功能描述	The ’90 is a 4-stage ripple counter containing a high speed flip-flop acting as a divide-by-two and three flip-flops connected as a divideby- five counter.
文件大小	306.59 Kbytes
頁面數(shù)量	3 頁
生產(chǎn)廠商	List of Unclassifed Manufacturers
企業(yè)簡稱	ETC1【etc未分類制造商】
中文名稱	未分類制造商
原廠標識
數(shù)據(jù)手冊	下載地址一下載地址二
更新時間	2025-1-31 17:02:00

DESCRIPTION — The ’90 is a 4-stage ripple counter containing a high speed

flip-flop acting as a divide-by-two and three flip-flops connected as a divideby-

five counter. It can be connected to operate with a conventional BCD output

pattern or it can be connected to provide a 50 duty cycle output. In the

BCD mode, HIGH signals on the Master Set (MS) inputs set the outputs to

BCD nine. HIGH signals on the Master Reset (MR) inputs force all outputs

LOW. For a similar counter with corner power pins, see the ’LS290; for dual

versions, see the ’LS390 and ’LS490.