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HD74LV574A_15 Datasheet, PDF (8/10 Pages) Renesas Technology Corp – Octal D-type Flip-Flops with 3-state Outputs
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HD74LV574A
• Waveform − 1
Input CLK
Input D
Output Q
• Waveform − 2
Input CLK
tr
tf
50 %VCC
10 %
tr
90 % 90 %
10 %
tf
90 %
90 %
10 %
tPLH
10 %
50 %VCC
tr
tf
10 %
tsu
90 % 90 %
50 % 50 %
VCC
VCC
tw
th
10 %
tw
50 %VCC
tPHL
50 %VCC
50 %VCC
Input D
50 %VCC
50 %VCC
• Waveform − 3
tf
Input OE
90 %
50 %VCC
10 %
Waveform − A
Waveform − B
tr
90 %
50 %VCC
10 %
tZL
tLZ
50 %VCC
tZH
tHZ
50 %VCC
VOL + 0.3 V
VOH − 0.3 V
VCC
GND
VCC
GND
VOH
VOL
VCC
GND
VCC
GND
VCC
GND
VCC
VOL
VOH
GND
Notes: 1. tr ≤ 3 ns, tf ≤ 3 ns
2. Input waveform: PRR ≤ 1 MHZ, duty cycle 50%
3. Waveform−A is for an output with internal conditions such that the output is low except
when disabled by the output control.
4. Waveform−B is for an output with internal conditions such that the output is high except
when disabled by the output control.
Rev.1.00 Feb. 01, 2005 page 6 of 7
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