參數(shù)資料
型號(hào): MC74VHCT74A
廠商: ON SEMICONDUCTOR
英文描述: Dual D-Type Flip-Flop(雙D觸發(fā)器)
中文描述: 雙D型觸發(fā)器(雙?觸發(fā)器)
文件頁(yè)數(shù): 4/8頁(yè)
文件大小: 85K
代理商: MC74VHCT74A
MC74VHCT74A
http://onsemi.com
4
Symbol
C
L
Parameter
Test Conditions
Min
L
C
Typ
Typical @ 25
°
C, V
CC
= 5.0V
PHL
t
PHL
Maximum Propagation Delay,
CP to Q or Q
V
= 5.0
0.5V
6.3
10.4
8.8
1.0
1.0
12.0
ns
t
,
C
= 15pF
L
7.6
max
(50% Duty Cycle)
Maximum Clock Frequency
V
CC
65
C
PD
Power Dissipation Capacitance (Note 1.)
1. C
PD
is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.
Average operating current can be obtained by the equation: I
CC(OPR
)
= C
PD
V
CC
f
in
+ I
CC
/2 (per flip–flop). C
PD
is used to determine the
no–load dynamic power consumption; P
D
= C
PD
V
CC2
f
in
+ I
CC
V
CC
.
24
pF
TIMING REQUIREMENTS
(Input t
= t
= 3.0ns)
0.0
Symbol
w
w
Parameter
V
V
T
A
= 25 C
T
A
= – 40 to
85 C
Unit
Minimum Recovery Time, SD or RD to CP
3.5
ns
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