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MC74HC161A Datasheet, PDF (2/16 Pages) ON Semiconductor – Presettable Counters | |||
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MC74HC161A, MC74HC163A
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ MAXIMUM RATINGS*
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Symbol
Parameter
Value
Unit
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ VCC
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Vin
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Vout
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Iin
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Iout
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ ICC
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ PD
DC Supply Voltage (Referenced to GND)
â 0.5 to + 7.0
V
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND)
DC Input Current, per Pin
â 0.5 to VCC + 0.5 V
â 0.5 to VCC + 0.5 V
± 20
mA
DC Output Current, per Pin
± 25
mA
DC Supply Current, VCC and GND Pins
± 50
mA
Power Dissipation in Still Air,
Plastic DIPâ
750
mW
SOIC Packageâ
500
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Tstg Storage Temperature
â 65 to + 150
_C
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ TL Lead Temperature, 1 mm from Case for 10 Seconds
_C
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ (Plastic DIP or SOIC Package)
260
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ *Maximum Ratings are those values beyond which damage to the device may occur.
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 highâimpedance cir-
cuit. For proper operation, Vin and
v v Vout should be constrained to the
range GND (Vin or Vout) 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.
Functional operation should be restricted to the Recommended Operating Conditions.
â Derating â Plastic DIP: â 10 mW/_C from 65_ to 125_C
SOIC Package: â 7 mW/_C from 65_ to 125_C
For high frequency or heavy load considerations, see Chapter 2 of the ON Semiconductor HighâSpeed CMOS Data Book (DL129/D).
RECOMMENDED OPERATING CONDITIONS
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Symbol
Parameter
Min Max Unit
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ VCC DC Supply Voltage (Referenced to GND)
2.0 6.0 V
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Vin, Vout DC Input Voltage, Output Voltage (Referenced to GND) 0 VCC V
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ TA
Operating Temperature, All Package Types
â 55 + 125 _C
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tr,tf InputRiseandFallTime(Figure1)
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
http://onsemi.com
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