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SN74LS393ML1

DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER

ON Semiconductor 

SN54/74LS390 • SN54/74LS393

AC SETUP REQUIREMENTS (TA = 25°C, VCC = 5.0 V)

Limits

Symbol

Parameter

Min

Typ

Max

Unit

tW

Clock Pulse Width LS393

20

ns

tW

CP0 Pulse Width

LS390

20

ns

tW

CP1 Pulse Width

LS390

40

ns

tW

MR Pulse Width

LS390/393

20

ns

trec

Recovery Time

LS390/393

25

ns

Test Conditions

VCC = 5.0 V

AC WAVEFORMS

*CP

1.3 V

tW

tPHL

Q

1.3 V

Figure 1

1.3 V

tPLH

1.3 V

MR & MS

CP

Q

1.3 V

tPHL

1.3 V

tW

trec

1.3 V

1.3 V

Figure 2

*The number of Clock Pulses required between tPHL and tPLH measurements can be determined from the appropriate Truth Table.

FAST AND LS TTL DATA

5-5

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