74F251A Philips, 74F251A Datasheet - Page 4

• Manufacturer Part Number: 74F251A
• Description: 8-input multiplexer 3-State
• Manufacturer: Philips

Philips Semiconductors
AC ELECTRICAL CHARACTERISTICS
AC WAVEFORMS
For all waveforms, V
1996 Jan 05
SYMBOL
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Waveform 3. 3-State Output Enable Time to High Level and
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
PZH
PZL
PHZ
PLZ
8-input multiplexer (3-State)
Y, Y
OE
V
OUT
V
IN
Propagation delay
In to Y
Propagation delay
In to Y
Propagation delay
Sn to Y
Propagation delay
Sn to Y
Output Enable time OE
to Y
Output Disable time
OE to Y
Output Enable time
OE to Y
Output Disable time
OE to Y
Output Disable Time from High Level
Waveform 1. For Inverting Outputs
PARAMETER
PARAMETER
M
V
t
= 1.5V
PZH
M
V
t
M
PHL
V
M
V
M
V
M
t
PHZ
V
M
CONDITION
Waveform 2
Waveform 1
Waveform 1
Waveform 2
Waveform 1
Waveform 2
Waveform 3
Waveform 4
Waveform 3
Waveform 4
Waveform 3
Waveform 4
Waveform 3
Waveform 4
t
PLH
V
TEST
TEST
M
V
OH
SF00782
SF00784
–0.3V
0V
MIN
3.0
3.0
2.5
1.0
4.5
4.0
3.5
2.5
3.5
3.5
2.5
1.0
2.5
2.5
3.5
1.0
4
T
amb
V
R
C
CC
L
L
Waveform 4. 3-State Output Enable Time to Low Level and
= 500
TYP
= 50pF
5.0
5.0
4.5
2.5
6.5
5.5
6.0
4.5
5.5
5.0
4.0
4.0
4.0
4.0
5.0
2.0
= +25 C
Y, Y
= +5V
OE
V
OUT
V
IN
Waveform 2. For Non-Inverting Outputs
MAX
10.0
7.0
7.0
7.0
5.0
9.0
9.0
7.0
7.5
7.5
6.5
6.0
6.5
6.5
7.5
4.5
Output Disable Time from Low Level
LIMITS
V
t
PZL
M
V
T
MIN
2.5
3.0
2.0
1.0
4.0
3.5
3.5
2.5
3.0
3.0
2.0
1.0
2.0
2.5
3.0
1.0
M
t
PLH
amb
V
CC
V
C
R
M
= 0 C to +70 C
V
= +5V
M
L
L
= 500
= 50pF
V
M
t
PLZ
10%
V
M
MAX
11.5
8.0
8.0
7.5
5.0
9.5
9.5
7.5
8.5
8.0
7.0
6.5
7.0
7.0
8.0
4.5
t
PHL
Product specification
V
74F251A
M
V
OL
UNIT
UNIT
SF00785
ns
ns
ns
ns
ns
ns
ns
ns
SF00092
+0.3V