HD74LS642 Datasheet, PDF(5/7 Page) Hitachi Semiconductor – Octal Bus Transceivers(inverted open-collector outputs)

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HD74LS642 Datasheet, PDF (5/7 Pages) Hitachi Semiconductor – Octal Bus Transceivers(inverted open-collector outputs)

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HD74LS642

Waveforms 2

tTLH

90 %

1.3 V

10 %

tTHL

90 %

1.3 V

10 %

tPLH

Output

1.3 V

tPHL

Note: Input pulse: tTLH â¤ 15 ns, tTHL â¤ 6 ns, PRR = 1 MHz, duty cycle 50%

VOH

1.3 V

VOL

Rev.2.00, Feb.18.2005, page 5 of 6

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