PI74FCT16646T/162646T/162H646T
16-Bit Registered Transceivers
7
PS2039B 02/24/99
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PI74FCT16646T Switching Characteristics over Operating Range
16646T
16646AT
16646CT
16646DT
16646ET
Com.
Com.
Com.
Com.
Com.
Parameters
Description
Conditions
(1)
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Units
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
PLH
t
PHL
t
PLH
t
PHL
t
SU
Propagation Delay
Bus to Bus
Output Enable Time
xDIR or xOE to Bus
Output Disable Time
(3)
xDIR or xOE to Bus
Propagation Delay
Clock to Bus
Propagation Delay
xSBA or xSAB to Bus
Setup Time HIGH or
LOW, B
US
to Clock
Hold Time HIGH or
LOW, Bus to Clock
Clock Pulse Width
HIGH or LOW
(3)
Output Skew
(4)
C
L
= 50 pF
R
L
= 500
2.0
9.0
2.0
6.3
1.5
5.4
1.5
4.4
1.5
3.8
ns
2.0
14.0
2.0
9.8
1.5
7.8
1.5
5.0
1.5
4.8
ns
2.0
9.0
2.0
6.3
1.5
6.3
1.5
4.3
1.5
4.0
ns
2.0
9.0
2.0
6.3
1.5
5.7
1.5
4.4
1.5
3.8
ns
2.0
11.0
2.0
7.7
1.5
6.2
1.5
5.0
1.5
4.2
ns
4.0
—
2.0
—
2.0
—
2.0
—
2.0
—
ns
t
H
2.0
—
1.5
—
1.5
—
1.0
—
0.0
—
ns
t
W
6.0
—
5.0
—
5.0
—
3.0
—
3.0
—
ns
t
SK
(o)
—
0.5
—
0.5
—
0.5
—
0.5
—
0.5
ns
PI74FCT162646T Switching Characteristics over Operating Range
162646T
162646AT
162646CT
162646DT
162646ET
Com.
Com.
Com.
Com.
Com.
Parameters
Description
Conditions
(1)
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Units
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
PLH
t
PHL
t
PLH
t
PHL
t
SU
Propagation Delay
Bus to Bus
Output Enable Time
xDIR or xOE to Bus
Output Disable Time
(3)
xDIR or xOE to Bus
Propagation Delay
Clock to Bus
Propagation Delay
xSBA or xSAB to Bus
Setup Time HIGH or
LOW, B
US
to Clock
Hold Time HIGH or
LOW, Bus to Clock
Clock Pulse Width
HIGH or LOW
(3)
Output Skew
(4)
C
L
= 50 pF
R
L
= 500
2.0
9.0
2.0
6.3
1.5
5.4
1.5
4.4
1.5
3.8
ns
2.0
14.0
2.0
9.8
1.5
7.8
1.5
5.0
1.5
4.8
ns
2.0
9.0
2.0
6.3
1.5
6.3
1.5
4.3
1.5
4.0
ns
2.0
9.0
2.0
6.3
1.5
5.7
1.5
4.4
1.5
3.8
ns
2.0
11.0
2.0
7.7
1.5
6.2
1.5
5.0
1.5
4.2
ns
4.0
—
2.0
—
2.0
—
2.0
—
2.0
—
ns
t
H
2.0
—
1.5
—
1.5
—
1.0
—
0.0
—
ns
t
W
6.0
—
5.0
—
5.0
—
3.0
—
3.0
—
ns
t
SK
(o)
—
0.5
—
0.5
—
0.5
—
0.5
—
0.5
ns
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.
4. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design.