參數(shù)資料
型號(hào): CD74ACT273SM
廠商: Texas Instruments, Inc.
英文描述: Octal D Flip-Flop with Reset
中文描述: 八路D觸發(fā)器的復(fù)位觸發(fā)器
文件頁(yè)數(shù): 6/15頁(yè)
文件大?。?/td> 310K
代理商: CD74ACT273SM
6
Propagation Delay,
MR to Qn
t
PLH
, t
PHL
1.5
-
-
154
-
-
169
ns
3.3
4.9
-
17.2
4.7
-
18.9
ns
5
3.5
-
12.3
3.4
-
13.5
ns
Input Capacitance
C
I
-
-
-
10
-
-
10
pF
Power Dissipation Capacitance
C
PD
(Note 11)
-
-
45
-
-
45
-
pF
ACT TYPES
Propagation Delay,
CP to Qn
t
PLH
, t
PHL
5
(Note 10)
3.5
-
12.3
3.4
-
13.5
ns
Propagation Delay,
MR to Qn
t
PLH
, t
PHL
5
3.5
-
12.3
3.4
-
13.5
ns
Input Capacitance
C
I
-
-
-
10
-
-
10
pF
Power Dissipation Capacitance
C
PD
(Note 11)
-
-
45
-
-
45
-
pF
NOTES:
8. Limits tested 100%.
9. 3.3V Min is at 3.6V, Max is at 3V.
10. 5V Min is at 5.5V, Max is at 4.5V.
11. C
PD
is used to determine the dynamic power consumption per flip-flop.
AC: P
D
= C
PD
V
CC2
f
i
=
(C
L
V
CC2
f
o
)
ACT: P
D
= C
PD
V
CC2
f
i
+
(C
L
V
CC2
f
o
) + V
CC
I
CC
where f
i
= input frequency, f
o
= output frequency, C
L
= output load capacitance,
V
CC
= supply voltage.
FIGURE 1. PROPAGATION DELAY TIMES AND CLOCK
PULSE WIDTH
FIGURE 2. PREREQUISITE AND PROPAGATION DELAY
TIMES FOR MASTER RESET
Switching Specifications
Input t
r
, t
f
= 3ns, C
L
= 50pF (Worst Case)
(Continued)
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
90%
V
S
t
f
t
r
V
S
V
S
10%
V
S
V
S
t
PLH
t
PHL
t
W
10%
CP
INPUT
LEVEL
Q
MR
CP
INPUT
LEVEL
V
S
Q
V
S
t
REM
V
S
V
S
t
PLH
t
W
GND
INPUT
(Q)
CD54AC273, CD74AC273, CD54ACT273, CD74ACT273
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