SL74HC597
System Logic
Semiconductor
SLS
8-Bit Serial or Parallel-Input/ Serial-Output Shift
Register with Input Latch
High-Performance Silicon-Gate CMOS
The SL74HC597 is identical in pinout to the LS/ALS597. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
This device consists of an 8-bit input latch which feeds parallel
data to an 8-bit shift register. Data can also be loaded serially (see
Function Table).
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0
A
High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
SL74HC597N Plastic
SL74HC597D SOIC
T
A
= -55
to 125
C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 16 =V
CC
PIN 8 = GND
SL74HC597
System Logic
Semiconductor
SLS
MAXIMUM RATINGS
*
Symbol
Parameter
Value
Unit
V
CC
DC Supply Voltage (Referenced to GND)
-0.5 to +7.0
V
V
IN
DC Input Voltage (Referenced to GND)
-1.5 to V
CC
+1.5
V
V
OUT
DC Output Voltage (Referenced to GND)
-0.5 to V
CC
+0.5
V
I
IN
DC Input Current, per Pin
20
mA
I
OUT
DC Output Current, per Pin
25
mA
I
CC
DC Supply Current, V
CC
and GND Pins
50
mA
P
D
Power Dissipation in Still Air, Plastic DIP+
SOIC Package+
750
500
mW
Tstg
Storage Temperature
-65 to +150
C
T
L
Lead Temperature, 1 mm from Case for 10 Seconds
(Plastic DIP or SOIC Package)
260
C
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
+Derating - Plastic DIP: - 10 mW/
C from 65
to 125
C
SOIC Package: : - 7 mW/
C from 65
to 125
C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
V
CC
DC Supply Voltage (Referenced to GND)
2.0
6.0
V
V
IN
, V
OUT
DC Input Voltage, Output Voltage (Referenced to GND)
0
V
CC
V
T
A
Operating Temperature, All Package Types
-55
+125
C
t
r
, t
f
Input Rise and Fall Time (Figure 1)
V
CC
=2.0 V
V
CC
=4.5 V
V
CC
=6.0 V
0
0
0
1000
500
400
ns
This device contains protection circuitry to guard against damage due to high static voltages or electric
fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated
voltages to this high-impedance circuit. For proper operation, V
IN
and V
OUT
should be constrained to the range
GND
(V
IN
or V
OUT
)
V
CC
.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V
CC
).
Unused outputs must be left open.
SL74HC597
System Logic
Semiconductor
SLS
DC ELECTRICAL CHARACTERISTICS
(Voltages Referenced to GND)
V
CC
Guaranteed Limit
Symbol
Parameter
Test Conditions
V
25
C
to
-55
C
85
C
125
C
Unit
V
IH
Minimum High-Level
Input Voltage
V
OUT
=0.1 V or V
CC
-0.1 V
I
OUT
20
A
2.0
4.5
6.0
1.5
3.15
4.2
1.5
3.15
4.2
1.5
3.15
4.2
V
V
IL
Maximum Low -Level
Input Voltage
V
OUT
=0.1 V or V
CC
-0.1 V
I
OUT
20
A
2.0
4.5
6.0
0.3
0.9
1.2
0.3
0.9
1.2
0.3
0.9
1.2
V
V
OH
Minimum High-Level
Output Voltage
V
IN
=V
IH
or V
IL
I
OUT
20
A
2.0
4.5
6.0
1.9
4.4
5.9
1.9
4.4
5.9
1.9
4.4
5.9
V
V
IN
=V
IH
or V
IL
I
OUT
4.0 mA
I
OUT
5.2 mA
4.5
6.0
3.98
5.48
3.84
5.34
3.7
5.2
V
OL
Maximum Low-Level
Output Voltage
V
IN
=V
IH
or V
IL
I
OUT
20
A
2.0
4.5
6.0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
V
V
IN
=V
IH
or V
IL
I
OUT
4.0 mA
I
OUT
5.2 mA
4.5
6.0
0.26
0.26
0.33
0.33
0.4
0.4
I
IN
Maximum Input
Leakage Current
V
IN
=V
CC
or GND
6.0
0.1
1.0
1.0
A
I
CC
Maximum Quiescent
Supply Current
(per Package)
V
IN
=V
CC
or GND
I
OUT
=0
A
6.0
8.0
80
160
A
SL74HC597
System Logic
Semiconductor
SLS
AC ELECTRICAL CHARACTERISTICS
(C
L
=50pF,Input t
r
=t
f
=6.0 ns)
V
CC
Guaranteed Limit
Symbol
Parameter
V
25
C to
-55
C
85
C
125
C
Unit
f
max
Minimum Clock Frequency (50% Duty Cycle)
(Figures 2 and 8)
2.0
4.5
6.0
6.0
30
35
4.8
24
28
4.0
20
24
MHz
t
PLH
, t
PHL
Maximum Propagation Delay, Latch Clock to Q
H
(Figures 1 and 8)
2.0
4.5
6.0
210
42
36
265
53
45
315
63
54
ns
t
PLH
, t
PHL
Maximum Propagation Delay , Shift Clock to Q
H
(Figures 2 and 8)
2.0
4.5
6.0
175
35
30
220
44
37
265
53
45
ns
t
PHL
Maximum Propagation Delay , Reset to Q
H
(Figures 3 and 8)
2.0
4.5
6.0
175
35
30
220
44
37
265
53
45
ns
t
PLH
, t
PHL
Maximum Propagation Delay, Serial Shift/
Parallel Load to Q
H
(Figures 4 and 8)
2.0
4.5
6.0
175
35
30
220
44
37
265
53
45
ns
t
TLH
, t
THL
Maximum Output Transition Time, Any Output
(Figures 1 and 8)
2.0
4.5
6.0
75
15
13
95
19
16
110
22
19
ns
C
IN
Maximum Input Capacitance
-
10
10
10
pF
Power Dissipation Capacitance (Per Package)
Typical @25
C,V
CC
=5.0 V
C
PD
Used to determine the no-load dynamic power
consumption:
P
D
=C
PD
V
CC
2
f+I
CC
V
CC
50
pF
SL74HC597
System Logic
Semiconductor
SLS
TIMING REQUIREMENTS
(C
L
=50pF,Input t
r
=t
f
=6.0 ns)
V
CC
Guaranteed Limit
Symbol
Parameter
V
25
C to
-55
C
85
C
125
C
Unit
t
su
Minimum Setup Time, Parallel Data
Inputs A-H to Latch Clock
(Figure 5)
2.0
4.5
6.0
100
20
17
125
25
21
150
30
26
ns
t
su
Minimum Setup Time, Serial Data
Input S
A
to Shift Clock (Figure 6)
2.0
4.5
6.0
100
20
17
125
25
21
150
30
26
ns
t
su
Minimum Setup Time, Serial
Shift/Parallel Load to Shift Clock
(Figure 7)
2.0
4.5
6.0
100
20
17
125
25
21
150
30
26
ns
t
h
Minimum Hold Time, Latch Clock to
Parallel Data Inputs A-H
(Figure 5)
2.0
4.5
6.0
25
5
5
30
6
6
40
8
7
ns
t
h
Minimum Hold Time, Shift Clock to
Serial Data Input S
A
(Figure 6)
2.0
4.5
6.0
5
5
5
5
5
5
5
5
5
ns
t
rec
Minimum Recovery Time, Reset
Inactive to Shift Clock (Figure 3)
2.0
4.5
6.0
100
20
17
125
25
21
150
30
26
ns
t
w
Minimum Pulse Width, Latch Clock
and Shift Clock (Figures 1 and 2)
2.0
4.5
6.0
80
16
14
100
20
17
120
24
20
ns
t
w
Minimum Pulse Width, Reset (Figure
3)
2.0
4.5
6.0
80
16
14
100
20
17
120
24
20
ns
t
w
Minimum Pulse Width, Serial
Shift/Parallel Load (Figure 4)
2.0
4.5
6.0
80
16
14
100
20
17
120
24
20
ns
t
r
, t
f
Maximum Input Rise and Fall Times
(Figure 1)
2.0
4.5
6.0
1000
500
400
1000
500
400
1000
500
400
ns
PDF 
ZIP