MC74VHC157

MOTOROLA

VHC Data – Advanced CMOS Logic

DL203 — Rev 1

2

MAXIMUM RATINGS*

Symbol

Parameter

Value

Unit

VCC

DC Supply Voltage

– 0.5 to + 7.0

V

Vin

DC Input Voltage

– 0.5 to + 7.0

V

Vout

DC Output Voltage

– 0.5 to VCC + 0.5

V

IIK

Input Diode Current

– 20

mA

IOK

Output Diode Current

± 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,

SOIC Packages†

TSSOP Package†

500

450

mW

Tstg

Storage Temperature

– 65 to + 150

_C

* Absolute maximum continuous ratings are those values beyond which damage to the device

may occur. Exposure to these conditions or conditions beyond those indicated may adversely

affect device reliability. Functional operation under absolute–maximum–rated conditions is not

implied.

†Derating — SOIC Packages: – 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

2.0

5.5

V

Vin

DC Input Voltage

0

5.5

V

Vout

DC Output Voltage

0

VCC

V

TA

Operating Temperature

– 40

+ 85

_C

tr, tf

Input Rise and Fall Time

VCC = 3.3V

VCC = 5.0V

0

0

100

20

ns/V

DC ELECTRICAL CHARACTERISTICS

Sb l

P

T

C

di i

VCC

TA = 25°C

TA = – 40 to 85°C

Ui

Symbol

Parameter

Test Conditions

VCC

V

Min

Typ

Max

Min

Max

Unit

VIH

Minimum High–Level

Input Voltage

2.0

3.0 to

5.5

1.50

VCC x 0.7

1.50

VCC x 0.7

V

VIL

Maximum Low–Level

Input Voltage

2.0

3.0 to

5.5

0.50

VCC x 0.3

0.50

VCC x 0.3

V

VOH

Minimum High–Level

Output Voltage

Vin = VIH or VIL

IOH = – 50µA

2.0

3.0

4.5

1.9

2.9

4.4

2.0

3.0

4.5

1.9

2.9

4.4

V

Vin = VIH or VIL

IOH = – 4mA

IOH = – 8mA

3.0

4.5

2.58

3.94

2.48

3.80

VOL

Maximum Low–Level

Output Voltage

Vin = VIH or VIL

IOL = 50µA

2.0

3.0

4.5

0.0

0.0

0.0

0.1

0.1

0.1

0.1

0.1

0.1

V

Vin = VIH or VIL

IOL = 4mA

IOL = 8mA

3.0

4.5

0.36

0.36

0.44

0.44

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.