SN54-74LS192 datasheet(5/7 Pages) ONSEMI | PRESETTABLE BCD/DECADE UP/DOWN COUNTER PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER

5 page

5-5

FAST AND LS TTL DATA

SN54/74LS192

• SN54/74LS193

GUARANTEED OPERATING RANGES

Symbol

Parameter

Min

Typ

Max

Unit

VCC

Supply Voltage

4.5

4.75

5.0

5.5

5.25

Operating Ambient Temperature Range

–55

125

°C

IOH

Output Current — High

54, 74

– 0.4

IOL

Output Current — Low

4.0

8.0

DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)

Sb l

Limits

di i

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

VIH

Input HIGH Voltage

2.0

Guaranteed Input HIGH Voltage for

All Inputs

VIL

Input LOW Voltage

0.7

Guaranteed Input LOW Voltage for

VIL

Input LOW Voltage

0.8

All Inputs

VIK

Input Clamp Diode Voltage

– 0.65

– 1.5

VCC = MIN, IIN = – 18 mA

VOH

Output HIGH Voltage

2.5

3.5

VCC = MIN, IOH = MAX, VIN = VIH

VOH

Output HIGH Voltage

2.7

3.5

, OH

or VIL per Truth Table

VOL

Output LOW Voltage

54, 74

0.25

0.4

IOL = 4.0 mA

VCC = VCC MIN,

VIN =VIL or VIH

VOL

Output LOW Voltage

0.35

0.5

IOL = 8.0 mA

VIN = VIL or VIH

per Truth Table

IIH

Input HIGH Current

µA

VCC = MAX, VIN = 2.7 V

IIH

Input HIGH Current

0.1

VCC = MAX, VIN = 7.0 V

IIL

Input LOW Current

– 0.4

VCC = MAX, VIN = 0.4 V

IOS

Short Circuit Current (Note 1)

–20

– 100

VCC = MAX

ICC

Power Supply Current

VCC = MAX

Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.

AC CHARACTERISTICS (TA = 25°C)

Sb l

Limits

di i

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

fMAX

Maximum Clock Frequency

MHz

V5 0 V

tPLH

tPHL

CPU Input to

TCU Output

V5 0 V

tPLH

tPHL

CPD Input to

TCD Output

VCC = 5.0 V

tPLH

tPHL

Clock to Q

CL = 15 pF

tPLH

tPHL

PL to Q

tPHL

MR Input to Any Output

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