参数资料
型号: 74VHC574
厂商: 意法半导体
英文描述: Octal D-Type Flip Flop with 3 State Output Non Inverting(三态输出的八D触发器)
中文描述: 八路D类拖鞋3态输出的非反相(三态输出的八?触发器)
文件页数: 4/10页
文件大小: 83K
代理商: 74VHC574
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
Test Conditions
Value
Unit
T
A
= 25
o
C
Min.
Typ.
-40 to 85
o
C
Min.
Max.
10
Max.
10
C
IN
C
OUT
C
PD
Input Capacitance
Output Capacitance
Power Dissipation
Capacitance (note 1)
1) C
PD
isdefined as the value ofthe IC’s internalequivalent capacitance which iscalculated fromtheoperating currentconsumption without load. (Refer to
Test Circuit).Average operating current can beobtained by the followingequation.I
CC
(opr) =C
PD
V
CC
f
IN
+I
CC
/8(per Flip-Flop)
4
6
28
pF
pF
pF
AC ELECTRICAL CHARACTERISTICS
(Input t
r
= t
f
=3 ns)
Symbol
Parameter
Test Condition
C
L
(pF)
3.3
(*)
15
3.3
(*)
50
5.0
(**)
15
5.0
(**)
50
3.3
(*)
15
3.3
(*)
50
5.0
(**)
15
5.0
(**)
50
3.3
(*)
50
5.0
(**)
50
3.3
(*)
5.0
(**)
3.3
(*)
5.0
(**)
3.3
(*)
5.0
(**)
3.3
(*)
15
3.3
(*)
50
5.0
(**)
15
5.0
(**)
50
3.3
(*)
50
5.0
(**)
50
Value
Unit
V
CC
(V)
T
A
= 25
o
C
Min.
Typ.
-40 to 85
o
C
Min.
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Max.
13.2
16.7
8.6
10.6
12.8
16.3
9.0
11.0
15.0
10.1
5.0
5.0
3.5
3.5
1.5
1.5
Max.
15.5
19.0
10.0
12.0
15.0
18.5
10.5
12.5
17.0
11.5
5.0
5.0
3.5
3.5
1.5
1.5
t
PLH
t
PHL
Propagation Delay
Time
CK to Q
8.5
11.0
5.6
7.1
8.2
10.7
5.9
7.4
11.0
7.1
ns
t
PZL
t
PZH
Output EnableTime
ns
t
PLZ
t
PHZ
Output Disable Time
ns
t
w
Clock Pulse Width
HIGH or LOW
ns
t
s
Setup Time D to CK
HIGH or LOW
ns
t
h
Hold Time D to CK
HIGH or LOW
ns
f
MAX
Maximum Clock
Frequency
80
50
130
85
125
75
180
115
65
45
110
75
MHz
t
OSLH
t
OSHL
Output to Output Skew
Time (note 1)
(*) Voltagerange is3.3V
±
0.3V
(**) Voltagerange is5V
±
0.5V
Note1:Parameter guaranteed bydesign. t
soLH
=|t
pLHm
- t
pLHn
|,t
soHL
=|t
pHLm
- t
pHLn
|
1.5
1.0
1.5
1.0
ns
74VHC574
4/10
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