PI74FCT244T/2244T
PI74FCT541T/2541T
Octal Buffer/Line Drivers
PI74FCT244/2244T Switching Characteristics over Operating Range
Param-
eters
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Notes:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
Description
Propagation Delay
Output Enable Time
OE
X
to
O
N
Output Disable
Time
(3)
OE
X
to
O
N
Condi-
tions
(1)
244T/2244T
Com.
Min
1.5
Max
6.5
8.0
7.0
244AT/2244AT
Com.
Min
1.5
1.5
1.5
Max
4.8
6.2
5.6
244CT/2244CT
Com.
Min
1.5
1.5
1.5
Max
4.1
5.8
5.2
244DT
Com.
Min
1.5
1.5
1.5
Max
3.6
4.8
4.0
Units
ns
ns
ns
C
L
= 50pF
1.5
1.5
PI74FCT541/2541T Switching Characteristics over Operating Range
541T/2541T
Parameters
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Description
Propagation Delay
D
N
to
O
N
Output Enable Time
OE
X
to
O
N
Output Disable
Time
(3)
OE
X
to
O
N
C
L
= 50pF
R
L
= 500Ω
Conditions
(1)
Com.
Min
1.5
1.5
1.5
Max
6.0
9.5
6.5
541AT/
2541AT
Com.
Min
1.5
1.5
1.5
Max
4.8
6.2
5.6
541CT/
2541CT
Com.
Min
1.5
1.5
1.5
Max
4.1
5.8
5.2
541DT
Com.
Min
1.5
1.5
1.5
Max
3.8
5.2
5.2
ns
ns
ns
Units
Notes:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
5
PS2011D
09/22/04
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
