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MC74HC597A Datasheet, PDF (3/12 Pages) ON Semiconductor – 8-Bit Serial or Parallel- Input/Serial-Output Shift Register
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MC74HC597A
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)
– 0.5 to VCC + 0.5 V
Vout DC Output Voltage (Referenced to GND)
– 0.5 to VCC + 0.5 V
Iin
DC Input Current, per Pin
± 20
mA
Iout DC Output Current, per Pin
± 25
mA
ICC DC Supply Current, VCC and GND Pins
± 50
mA
PD Power Dissipation in Still Air, Plastic or Ceramic DIP†
750
mW
SOIC Package†
500
TSSOP Package†
450
Tstg Storage Temperature
– 65 to + 150
_C
TL Lead Temperature, 1 mm from Case for 10 Seconds
_C
(Plastic DIP, SOIC or TSSOP Package)
260
(Ceramic DIP)
300
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress
ratings only. Functional operation above the Recommended Operating Conditions is not implied.
Extended exposure to stresses above the Recommended Operating Conditions may affect device
reliability.
†Derating — Plastic DIP: – 10 mW/_C from 65_ to 125_C
— Ceramic DIP: – 10 mW/_C from 100_ to 125_C
— SOIC Package: – 7 mW/_C from 65_ to 125_C
TSSOP Package: − 6.1 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, Vout DC Input Voltage, Output Voltage (Referenced to GND)
0
VCC
V
TA
Operating Temperature, All Package Types
– 55 + 125 _C
tr, tf
Input Rise and Fall Time
(Figure 1)
VCC = 2.0 V 0
VCC = 3.0 V 0
VCC = 4.5 V 0
VCC = 6.0 V 0
1000 ns
600
500
400
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 cir-
cuit. For proper operation, Vin and
Vout should be constrained to the
range GND v (Vin or Vout) v VCC.
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or VCC).
Unused outputs must be left open.
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