N74F241D 查看數據表（PDF） - Philips Electronics
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N74F241D Datasheet PDF : 12 Pages
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Philips Semiconductors
Buffers
Product specification
74F240/74F240A/
74F241/74F241A
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TEST
CONDITION
LIMITS
Tamb = +25°C
VCC = +5.0V
CL = 50pF, RL = 500Ω
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF, RL = 500Ω
MIN TYP MAX
MIN
MAX
tPLH
Propagation delay
tPHL
Ian, Ibn to Yn
Waveform 1
3.0 4.5
2.0 3.0
6.5
4.5
3.0
2.0
7.5
5.0
tPZH
tPZL
Output enable time
to high or low level
74F240
Waveform 3
Waveform 4
3.0 5.0
4.5 6.5
7.5
8.5
3.0
4.0
9.0
10.0
tPHZ
Output disable time
tPLZ
from high or low level
Waveform 3
3.0 5.5
7.0
3.0
7.5
Waveform 4
3.0 5.0
7.0
3.0
7.5
tPLH
Propagation delay
tPHL
Ian, Ibn to Yn
Waveform 1
2.5 4.0
2.0 3.5
5.5
5.5
2.0
2.0
6.5
6.0
tPZH
tPZL
Output enable time
to high or low level
74F240A
Waveform 3
Waveform 4
2.0 4.0
3.5 5.0
6.5
7.5
2.0
3.0
7.0
8.5
tPHZ
Output disable time
tPLZ
from high or low level
Waveform 3
2.0 3.5
6.0
1.5
6.5
Waveform 4
1.5 2.5
5.0
1.0
5.5
tsk(0)
Output skew1, 2
Waveform 5
1.5
2.0
tPLH
Propagation delay
tPHL
Ian, Ibn to Yn
Waveform 2
2.5 4.0
2.5 4.0
5.2
5.2
2.5
2.5
6.2
6.5
tPZH
tPZL
Output enable time
to high or low level
74F241
Waveform 3
Waveform 4
2.0 4.0
2.0 5.0
5.7
7.0
2.0
2.0
6.7
8.0
tPHZ
Output disable time
tPLZ
from high or low level
Waveform 3
2.0 4.0
6.0
2.0
7.0
Waveform 4
2.0 4.0
6.0
2.0
7.0
tPLH
Propagation delay
tPHL
Ian, Ibn to Yn
Waveform 2
2.5 4.5
2.5 4.5
5.8
5.8
2.5
2.5
6.5
6.5
tPZH
tPZL
Output enable time
to high or low level
74F241A
Waveform 3
Waveform 4
2.5 4.5
3.5 5.0
6.0
7.0
2.0
3.0
6.7
8.0
tPHZ
Output disable time
tPLZ
from high or low level
Waveform 3
2.0 4.0
6.0
1.5
6.5
Waveform 4
1.5 3.5
5.5
1.0
6.0
tsk(0)
Output skew1, 2
Waveform 5
1.5
2.0
Notes to AC electrical characteristics
1. | tPN actual – tPM actual| for any output compared to any other output where N and M are either LH or HL.
2. Skew times are valid only under same test conditions (temperature, VCC, loading, etc.,).
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AC WAVEFORMS
Ian, Ibn VM
tPHL
VM
tPLH
Ian, Ibn
VM
tPLH
VM
tPHL
Yn
VM
VM
SF00328
Waveform 1. Propagation delay for inverting outputs
Yn
VM
VM
SF00329
Waveform 2. Propagation delay for non–invertIng outputs
January 2, 1991
7
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