參數(shù)資料
型號(hào): CD74ACT74EX
廠商: Texas Instruments, Inc.
英文描述: Dual D-Type Flip-Flop with Set and Reset Positive-Edge-Triggered
中文描述: 雙D型觸發(fā)器的設(shè)置和復(fù)位上升沿觸發(fā)
文件頁數(shù): 5/8頁
文件大小: 36K
代理商: CD74ACT74EX
5
Prerequisite For Switching Function
PARAMETER
SYMBOL
V
CC
(V)
-40
o
C TO 85
o
C
-55
o
C TO 125
o
C
UNITS
MIN
MAX
MIN
MAX
AC TYPES
Data to CP Setup Time
t
SU
1.5
39
-
44
-
ns
3.3 (Note 11)
4.3
-
4.9
-
ns
5 (Note 12)
3.1
-
3.5
-
ns
Hold Time
t
H
1.5
0
-
0
-
ns
3.3
0
-
0
-
ns
5
0
-
0
-
ns
Removal Time, R, S to CP
t
REM
1.5
30
-
34
-
ns
3.3
4.1
-
4.7
-
ns
5
2.4
-
2.7
-
ns
Pulse Width, R, S
t
W
1.5
44
-
50
-
ns
3.3
4.9
-
5.6
-
ns
5
3.5
-
4
-
ns
Pulse Width, CP
t
W
1.5
49
-
56
-
ns
3.3
5.5
-
6.3
-
ns
5
3.9
-
4.5
-
ns
CP Frequency
f
MAX
1.5
10
-
9
-
MHz
3.3
90
-
79
-
MHz
5
125
-
110
-
MHz
ACT TYPES
Data to CP Setup Time
t
SU
5 (Note 12)
3.5
-
4
-
ns
Hold Time
t
H
5
0
-
0
-
ns
Removal Time, R, S to CP
t
REM
5
2.4
-
2.7
-
ns
Pulse Width, R, S
t
W
5
4.4
-
5
-
ns
Pulse Width, CP
t
W
5
5
-
5.7
-
ns
CP Frequency
f
MAX
5
97
-
85
-
MHz
NOTES:
11. 3.3V Min at 3.6V.
12. 5V Min at 4.5V.
Switching Specifications
Input t
r
, t
f
= 3ns, C
L
= 50pF (Worst Case)
PARAMETER
SYMBOL
V
CC
(V)
-40
o
C TO 85
o
C
-55
o
C TO 125
o
C
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
AC TYPES
Propagation Delay, CP to Q, Q
t
PLH
, t
PHL
1.5
-
-
114
-
-
125
ns
3.3
(Note 14)
3.6
-
12.7
3.5
-
14
ns
5
(Note 15)
2.6
-
9.1
2.5
-
10
ns
CD74AC74, CD74ACT74
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