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AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Symbol
Parameter
Test Conditions
Value
-40 to 85
o
C
74HC
Min.
Unit
V
CC
(V)
C
L
(pF)
T
A
= 25
o
C
54HC and 74HC
Min.
Typ.
35
-55 to 125
o
C
54HC
Min.
Max.
75
15
13
100
20
17
0
0
0
50
10
9
10
Max.
95
19
16
125
25
21
0
0
0
65
13
11
10
Max.
110
22
19
145
29
25
0
0
0
75
15
13
10
t
s
Minimum Set-up
Time
(SCK - RCK)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
50
ns
8
6
t
s
Minimum Set-up
Time
(SCRL - RCK)
50
40
10
7
ns
t
h
Minimum Hold
Time
50
ns
t
REM
Minimum Clear
Remuval Time
50
15
3
3
5
184
ns
C
IN
Input Capacitance
Power Dissipation
Capacitance
pF
C
PD
(*)
pF
(*) C
PD
isdefined asthe value ofthe IC’sinternal equivalent capactance which is calculated from the operating current consumption without load.
(Refer to Test Circuit).Average operting current can be obtained by thefollowingequation. I
CC
(opr) = C
PD
V
CC
f
IN
+ I
CC
SWITCHING CHARACTERISTICS TEST WAVEFORM
WAVEFORM1
WAVEFORM 2
M54/M74HC595
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