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SL74HC595
8-Bit Serial-Input/Serial or Parallel-Output Shift
Register with Latched 3-State Outputs
High-Performance Silicon-Gate CMOS
The SL74HC595 is identical in pinout to the LS/ALS595. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
The SL74HC595 consists of an 8-bit shift register and an 8-bit Dtype latch with three-state parallel outputs. The shift register accepts
serial data and provides a serial output. The shift register also provides
parallel data to the 8-bit latch. The shift register and latch have
independent clock inputs. This device also has an asynchronous re set
for the shift register.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
SL74HC595N Plastic
SL74HC595D SOIC
TA = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
SLS
PIN 16 =VCC
PIN 8 = GND
System Logic
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SL74HC595
MAXIMUM RATINGS*
Symbol Parameter Value Unit
VCC DC Supply Voltage (Referenced to GND) -0.5 to +7.0 V
VIN DC Input Voltage (Referenced to GND) -1.5 to VCC +1.5 V
V
DC Output Voltage (Referenced to GND) -0.5 to VCC +0.5 V
OUT
IIN DC Input Current, per Pin ±20 mA
I
DC Output Current, per Pin ±35 mA
OUT
ICC DC Supply Current, VCC and GND Pins ±75 mA
PD Power Dissipation in Still Air, Plastic DIP+
SOIC Package+
750
500
Tstg Storage Temperature -65 to +150 °C
TL Lead Temperature, 1 mm from Case for 10 Seconds
260 °C
(Plastic DIP or SOIC Package)
*
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
VCC DC Supply Voltage (Referenced to GND) 2.0 6.0 V
VIN, V
DC Input Voltage, Output Voltage (Referenced to GND) 0 VCC V
OUT
TA Operating Temperature, All Package Types -55 +125 °C
tr, tf Input Rise and Fall Time (Figure 1) VCC =2.0 V
VCC =4.5 V
V
=6.0 V
CC
0
0
0
1000
500
400
mW
ns
This device contains protection circuitry to guard agai nst 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, VIN and V
GND≤(VIN or V
OUT
)≤VCC.
should be constrained to the range
OUT
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC).
Unused outputs must be left open.
System Logic
SLS
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SL74HC595
DC ELECTRICAL CHARACTERISTICS(Voltages Referenced to GND)
VCC Guaranteed Limit
Symbol Parameter Test Conditions V 25 °C
to
-55°C
VIH Minimum High-Level
Input Voltage
VIL Maximum Low -Level
Input Voltage
VOH Minimum High-Level
Output Voltage, QAQH
VIN=VIH or VIL
VOL Maximum Low -Level
Output Voltage, QAQH
VIN=VIH or VIL
VOH Minimum High-Level
Output Voltage, SQH
V
=0.1 V or VCC-0.1 V
OUT
I
≤ 20 µA
OUT
V
=0.1 V or VCC-0.1 V
OUT
I
≤ 20 µA
OUT
VIN=VIH or VIL
I
≤ 20 µA
OUT
I
≤ 6.0 mA
OUT
I
≤ 7.8 mA
OUT
VIN=VIH or VIL
I
≤ 20 µA
OUT
I
≤ 6.0 mA
OUT
I
≤ 7.8 mA
OUT
VIN=VIH or VIL
I
≤ 20 µA
OUT
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
2.0
4.5
6.0
1.5
3.15
4.2
0.5
1.35
1.8
1.9
4.4
5.9
3.98
5.48
0.1
0.1
0.1
0.26
0.26
1.9
4.4
5.9
≤85
°C
1.5
3.15
4.2
0.5
1.35
1.8
1.9
4.4
5.9
3.84
5.34
0.1
0.1
0.1
0.33
0.33
1.9
4.4
5.9
≤125
°C
1.5
3.15
4.2
0.5
1.35
1.8
1.9
4.4
5.9
3.7
5.2
0.1
0.1
0.1
0.4
0.4
1.9
4.4
5.9
Unit
V
V
V
V
V
VIN=VIH or VIL
I
≤ 4.0 mA
OUT
I
≤ 5.2 mA
OUT
VOL Maximum Low -Level
Output Voltage, SQH
VIN=VIH or VIL
I
≤ 20 µA
OUT
VIN=VIH or VIL
I
≤ 4.0 mA
OUT
I
≤ 5.2 mA
OUT
IIN Maximum Input
VIN=VCC or GND 6.0 ±0.1 ±1.0 ±1.0 µA
Leakage Current
IOZ Maximum Three-State
Leakage Current, QAQH
Output in High-Impedance
State
VIN= VIL or VIH
VIN=VCC or GND
ICC Maximum Quiescent
Supply Current
VIN=VCC or GND
I
=0µA
OUT
(per Package)
System Logic
SLS
4.5
6.0
2.0
4.5
6.0
4.5
6.0
3.98
5.48
0.1
0.1
0.1
0.26
0.26
3.84
5.34
0.1
0.1
0.1
0.33
0.33
3.7
5.2
0.1
0.1
0.1
0.4
0.4
V
6.0 ±0.5 ±5.0 ±10 µA
6.0 4.0 40 160 µA