N74F538D Ver la hoja de datos (PDF) - Philips Electronics
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N74F538D Datasheet PDF : 10 Pages
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Philips Semiconductors
1-of-8 decoder (3-State)
Product specification
74F538
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TEST CONDITIONS
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation delay
An to Qn
Propagation delay
E0 or E1 to Qn
Propagation delay
E2 or E3 to Qn
Propagation delay
P to Qn
Output Enable time
OE0 or OE1 to Qn
Output Disable time
OE0 or OE1 to Qn
Waveform 1, 2
Waveform 1, 2
Waveform 1, 2
Waveform 1, 2
Waveform 3
Waveform 4
Waveform 3
Waveform 4
LIMITS
Tamb = +25°C
VCC = +5.0V
CL = 50pF, RL = 500Ω
MIN TYP MAX
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF, RL = 500Ω
MIN
MAX
5.5
8.5
13.0
5.0
14.0
3.0
7.5
12.5
3.0
13.5
5.5
8.5
12.0
5.0
13.0
3.0
7.5
12.0
3.0
12.5
6.5
9.0
12.5
5.5
13.5
4.0
7.0
12.5
3.5
13.0
4.5
9.5
15.0
4.0
16.5
3.5
6.5
10.0
3.5
10.5
2.5
5.5
9.5
2.0
11.0
6.5
9.5
13.5
6.0
15.0
1.0
3.0
6.0
1.0
7.0
1.0
3.5
8.5
1.0
9.5
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AC WAVEFORMS
For all waveforms, VM = 1.5V.
An, P, En, En
Qn
VM
VM
tPLH
tPHL
VM
VM
An, P, En, En
Qn
VM
tPHL
VM
tPLH
VM
VM
SF01000
Waveform 1. Propagation Delay for
Non-Inverting Outputs
SF01001
Waveform 2. Propagation Delay for
Inverting Outputs
OEn
Qn
VM
tPZH
VM
VM
tPHZ
VOH -0.3V
0V
SF01002
Waveform 3. 3-State Output Enable Time to High Level
and Output Disable Time from High Level
OEn
VM
VM
tPZL
tPLZ
Qn
VM
VOL +0.3V
SF01003
Waveform 4. 3-State Output Enable Time to Low Level
and Output Disable Time from Low Level
1989 Apr 06
5
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