參數(shù)資料
型號(hào): 74AC16x
廠商: ON SEMICONDUCTOR
元件分類: 通用總線功能
英文描述: Synchronous Presettable Binary Counter
中文描述: 同步可預(yù)置二進(jìn)制計(jì)數(shù)器
文件頁數(shù): 10/15頁
文件大小: 202K
代理商: 74AC16X
MC74AC161, MC74ACT161, MC74AC163, MC74ACT163
http://onsemi.com
10
AC OPERATING REQUIREMENTS
Symbol
Parameter
V
CC
*
(V)
74ACT161
74ACT161
Unit
Fig.
No.
T
A
= +25
°
C
C
L
= 50 pF
T
A
=
40
°
C
to +85
°
C
C
L
= 50 pF
Typ
Guaranteed Minimum
t
s
Setup Time, HIGH or LOW
P
n
to CP
Hold Time, HIGH or LOW
P
n
to CP
Setup Time, HIGH or LOW
PE to CP
5.0
7.0
9.5
11.5
ns
3
9
t
h
5.0
3.0
0
0
ns
3
9
t
s
5.0
6.0
8.5
9.5
ns
3
9
t
h
Hold Time, HIGH or LOW
PE to CP
5.0
3.5
0.5
0.5
ns
3
9
t
s
Setup Time, HIGH or LOW
CEP or CET to CP
5.0
4.0
5.5
6.5
ns
3
9
t
h
Hold Time, HIGH or LOW
CEP or CET to CP
5.0
2.0
0
0
ns
3
9
t
w
Clock Pulse Width (Load)
HIGH or LOW
5.0
2.0
3.0
3.5
ns
3
6
t
w
Clock Pulse Width (Count)
HIGH or LOW
5.0
2.0
3.0
3.5
ns
3
6
t
w
MR Pulse Width, LOW
5.0
3.0
3.0
7.5
ns
3
6
t
rec
Recovery Time
MR to CP
5.0
0
0
0.5
ns
3
9
*Voltage Range 5.0 V is 5.0 V
±
0.5 V.
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