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| 74F651A Datasheet, PDF (10/14 Pages) NXP Semiconductors – Transceivers/registers | |||
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Philips Semiconductors
Transceivers/registers
Product specification
74F651A/74F652A
AC WAVEFORMS
For all waveforms, VM = 1.5V.
The shaded areas indicate when the input is permitted to change for predictable output performance.
CPBA
or
CPAB
VM
1/fmax
tw(H)
VM
tPHL
tw(L)
VM
tPLH
An or Bn
VM
VM
SF00394
Waveform 1. Propagation delay for clock input to output, clock
pulse width, and maximum clock frequency
An or Bn
VM
tPHL
VM
SBA or SAB
tPLH
Bn or An
VM
VM
An or Bn
SF00395
Waveform 2. Propagation delay for An to Bn or Bn to An and
SAB or SBA to An or Bn
An or Bn
Bn or An
VM
tPLH
VM
VM
SBA or SAB
tPHL
VM
An or Bn
SF00396
Waveform 3. Propagation delay for An to Bn or Bn to An and
SAB or SBA to An or Bn
An or Bn
CPBA
or
CPAB
VM
VM
tsu(H) th(H)
VM
VM
tsu(L)
VM
th(L)
VM
Waveform 4. Data setup time and hold times
SF00397
OEBA
OEAB
VM
VM
tsu(L) th(L)
VM
SF00410
Waveform 5. OEBA to OEAB setup time and hold times
OEBA
OEAB
VM
tPZH
VM
tPHZ
VOH -0.3V
An or Bn
VM
0V
SF00412
Waveform 7. 3-State output enable time to high level and
output disable time from high level
OEAB
OEBA
VM
VM
tsu(H) th(H)
VM
SF00411
Waveform 6. OEAB to OEBA setup time and hold times
OEBA
OEAB
VM
tPZL
VM
tPLZ
An or Bn
VM
VOL +0.3V
SF00413
Waveform 8. 3-State output enable time to low level and
output disable time from low level
1999 Jun 23
10
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