N74F125D データシートの表示（PDF） - Philips Electronics
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N74F125D Datasheet PDF : 10 Pages
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Philips Semiconductors
Quad buffers (3-State)
Product specification
74F125, 74F126
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TEST
CONDITION
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation delay
Dn to Qn
Output Enable time
to High or Low level
Output Disable time
from High or Low level
Propagation delay
Dn to Qn
Output Enable time
to High or Low level
Output Disable time
from High or Low level
AC WAVEFORMS
For all waveforms, VM = 1.5V.
74F125
74F126
Waveform 1
Waveform 2
Waveform 3
Waveform 2
Waveform 3
Waveform 1
Waveform 2
Waveform 3
Waveform 2
Waveform 3
Dn
VM
VM
tPLH
tPHL
Qn
VM
VM
SF00125
Waveform 1. Propagation Delay for Input to Output
OEn
VM
VM
OEn
tPZH
tPHZ
VOH–0.3V
Qn
VM
0V
SF00126
Waveform 2. 3-State Output Enable Time to High Level and
Output Disable Time from High Level
LIMITS
VCC = +5.0V
Tamb = +25°C
CL = 50pF, RL = 500Ω
MIN
TYP MAX
VCC = +5.0V ± 10%
Tamb = 0°C to +70°C
CL = 50pF, RL = 500Ω
MIN
MAX
2.0
4.0
6.0
2.0
6.5
3.0
5.5
7.5
3.0
8.0
3.5
5.5
7.5
3.5
8.5
4.0
6.0
8.0
4.0
9.0
1.5
3.5
5.0
1.5
6.0
1.5
3.5
5.5
1.5
6.0
2.0
4.0
6.5
2.0
7.0
3.0
5.5
8.0
3.0
8.5
4.0
6.0
7.5
3.5
8.5
4.0
6.0
8.0
3.5
8.5
2.0
4.5
6.5
2.0
7.5
3.0
5.5
7.5
3.0
8.0
UNIT
ns
ns
ns
ns
ns
ns
OEn
VM
VM
OEn
tPZL
tPLZ
Qn
VM
VOL+0.3V
SF00127
Waveform 3. 3-State Output Enable Time to Low Level and
Output Disable Time from Low Level
March 28, 1989
5
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