HD74HC564, HD74HC574

Rev.2.00 Mar 30, 2006 page 7 of 9

Waveforms

Input Clock

0 V

10 %

90 %

10 %

50 %

50 %

50 %

50 %

50 %

50 %

50 %

50 %

10 %

90 %

10 %

0 V

Input Data

Output

Q

90 %

90 %

90 %

10 %

90 %

10 %

90 %

10 %

0 V

Input

OC

Waveform - A

Waveform - B

• Waveform – 2

• Waveform – 1

Output Q

Notes : 1. Input waveform : PRR

2. Waveform - A is for an output with internal conditions such that the

output is low except when disabled by the output control.

3. Waveform - B is for an output with internal conditions such that the

output is high except when disabled by the output control.

4. The output are measured one at a time with one transition per measurement.