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HD74LV374A Datasheet, PDF (11/15 Pages) Hitachi Semiconductor – Octal Edge-Triggered D-type Flip-Flops with 3-state Outputs
HD74LV374A
• 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.
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