PI74FCT16245T
PI74FCT162245T
Fast CMOS 16-Bit Bidirectional Tranceivers
5
PS2032K 11/06/08
Notes:
1. For Max or Min conditions, use appropriate value speci¿ ed under Electrical Characteristics for the applicable device.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
4. Skew between any two outputs, of the same package, switching in the same direction.
This parameter is guar an teed by design.
PI74FCT16245T Switching Characteristics over Operating Range
Parameters De scrip tion
Conditions
(1)
16245T 16245AT 16245CT
UnitsCom. Com. Com.
Min. Max. Min. Max. Min. Max.
t
PHL
t
PHL
Propagation Delay
(2)
A TO B, B TO A
C
L
= 50pF
R
L
= 500ȍ
1.5 7.0 1.5 4.6 1.5 4.1 ns
t
PZH
t
PZL
Output Enable Time
XOE to A OR B
1.5 9.5 1.5 6.2 1.5 5.8 ns
t
PHZ
t
PLZ
Output Disable Time
(3)
XOE to A OR B
1.5 7.5 1.5 5.0 1.5 4.8 ns
t
PZH
t
PZL
Output Enable Time
XDIR to A OR B
(3)
1.5 9.5 1.5 6.2 1.5 5.8 ns
t
PHZ
t
PLZ
Output Disable Time
XDIR to A OR B
(3)
1.5 7.5 1.5 5.0 1.5 4.8 ns
T
SK(O)
Output Skew
(4)
0.5 0.5 0.5 ns
PI74FCT162245T Switching Characteristics over Operating Range
Parameters De scrip tion
Conditions
(1)
162245T 162245AT 162245CT
Units
Com. Com. Com.
Min. Max. Min. Max. Min. Max.
t
PHL
t
PHL
Propagation Delay
(2)
A to B, B to A
C
L
= 50pF
R
L
= 500ȍ
1.5 7.0 1.5 4.6 1.5 4.1 ns
t
PZH
t
PZL
Output Enable Time
xOE to A or B
1.5 9.5 1.5 6.2 1.5 5.8 ns
t
PHZ
t
PLZ
Output Disable Time
(3)
xOE to A or B
1.5 7.5 1.5 5.0 1.5 4.8 ns
t
PZH
t
PZL
Output Enable Time
xDIR to A or B
(3)
1.5 9.5 1.5 6.2 1.5 5.8 ns
t
PHZ
t
PLZ
Output Disable Time
xDIR to A or B
(3)
1.5 7.5 1.5 5.0 1.5 4.8 ns
tsk(o) Output Skew
(4)
0.5 0.5 0.5 ns
Notes:
1. For Max or Min conditions, use appropriate value speci¿ ed under Electrical Characteristics for the applicable device.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
4. Skew between any two outputs, of the same package, switching in the same direction.
This parameter is guar an teed by design.
08-0291