WS74HC595
DC ELECTRICAL CHARACTERISTICS
(Apply across temperature range unless otherwise specified)
TA = 25℃
54HC595
TYP MAX MIN
1.998
1.9
4.499
4.4
5.999
5.9
4.3
3.84
5.8
5.34
0.002
0.1
0.001
0.1
0.001
0.1
0.17
0.26
0.15
0.26
±100
±0.1
±0.01 ±0.5
8
3
10
74HC595
MAX
PARAMETER
TEST CONDITIONS
V
cc MIN
1.9
4.4
5.9
3.98
5.48
UNIT
V
OH
V
I
= V
IH
or V
IL
V
OL
V
I
= V
IH
or V
IL
I
I
V
I
= Vcc or 0
2 V
I
OH
= -20uA 4.5V
6 V
I
OH
= -6 mA 4.5V
I
OH
= -7.8mA 6 V
2 V
I
OL
=20uA
4.5V
6 V
I
OL
= 6mA
4.5V
I
OL
=7.8mA 6 V
6 V
V
I
OZ
Icc
Ci
V
O
= Vcc or 0, Q1-Q8
V
I
= Vcc or 0 I
O
= 0
6 V
6 V
2V ~ 6V
0.1
0.1
0.1
V
0.33
0.33
±1000
nA
±5
uA
80
uA
10
pF
TIMING REQUREMENTS OVER RECOMMENED OPERATING FREE-AIR TEMPERATURE
RANGE (unless otherwise noted)
Parameter
Symbol Unit
Guaranteed Limit
Test Condition
Clock frequency
f
clock
MHz
Pulse duration
t
w
ns
Setup time
t
su
ns
Hold time,
t
h
ns
TA=25℃
6
31
36
80
16
14
80
16
14
100
20
17
75
15
13
50
10
9
50
10
9
0
-40~+85
5
Vcc=2.0V
25
Vcc=4.5V
29
Vcc=6.0V
100
Vcc=2.0V SRCK or LCK high or low
20
Vcc=4.5V
17
Vcc=6.0V
100
Vcc=2.0V
SRCL low
20
Vcc=4.5V
17
Vcc=6.0V
125
Vcc=2.0V
25
Vcc=4.5V SER before SRCK↑
21
Vcc=6.0V
94
Vcc=2.0V
19
Vcc=4.5V SRCK↑ before LCK↑
(Note 4)
16
Vcc=6.0V
65
Vcc=2.0V
13
Vcc=4.5V SRCL low before RCK↑
11
Vcc=6.0V
60
Vcc=2.0V
SRCL high(inactive)
12
Vcc=4.5V
11
before SRCK↑
Vcc=6.0V
0
Vcc=2~6V
SER after SRCK↑
Note: . 4. This setup time allows the latch to receive stable data from the shift register. The clock can
be connected together, in this case the shift register is one clock pulse ahead of the latch.
4
WINGS [ WING SHING COMPUTER COMPONENTS ]
