SN74LS393 查看數據表（PDF） - ON Semiconductor

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SN74LS393

Dual 4−Stage Binary Counter

ON Semiconductor 

SN74LS393

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.

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