HD74BC645 Просмотр технического описания (PDF) - Renesas Electronics

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HD74BC645

Octal Bus Transceivers With 3 State Outputs / SOP-20 pin (JEITA)

Renesas Electronics 

HD74BC645A

Waveforms-2

Notes:

tf

tr

G

90 %

1.5 V

10 %

Waveform – A

Waveform – B

tZL

1.5 V

tZH

1.5 V

90 %

1.5 V

10 %

tLZ

tHZ

VOL + 0.3 V

VOH – 0.3 V

3V

0V

3.5 V

VOL

VOH

0V

1. tr = 2.5 ns, tf = 2.5 ns

2. Input waveforms: PRR = 1 MHz, duty cycle 50%

3. Waveform-A shows input conditions such that the output is “L” level when enable by the

output control.

4. Waveform-B shows input conditions such that the output is “H” level when enable by the

output control.

Rev.2.00, Jul.16.2004, page 6 of 7

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