參數(shù)資料
型號: TC74AC390
廠商: Toshiba Corporation
元件分類: 通用總線功能
英文描述: CMOS Dual Decade Counter(CMOS雙路十進制計數(shù)器)
中文描述: CMOS雙反十年的CMOS(雙路十進制計數(shù)器)
文件頁數(shù): 3/4頁
文件大?。?/td> 223K
代理商: TC74AC390
TOSHIBA CORPORATION
3/4
TC74AC390
System Diagram
Timing Chart
D
Q
CK
Q
CKA
CLR
CKB
1/15
2/14
4/12
R
3/13
5/11
6/10
7/9
QA
QB
QC
QD
D
Q
CK
Q
R
D
Q
CK
Q
R
D
Q
CK
R
CLR
0 1
CKA
QD
* QA connected to CKB.
QA
QB
QC
CLR
2
3
4
8
9
10
11
12
0
1
2
(1) BCD COUNT SEQUENCE*
CLR
0 1
CKB
QA
** QD connected to CKA.
QB
QC
QD
CLR
2
3
4
8
9
10
11
12
0
1
2
(2) BI-QUINARY COUNT SEQUENCE**
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