IDT72V8981 Integrated Device Technology, IDT72V8981 Datasheet - Page 9

• Manufacturer Part Number: IDT72V8981
• Description: 3.3 Volt Time Slot Interchange Digital Switch 128 X 128
• Manufacturer: Integrated Device Technology

AC ELECTRICAL CHARACTERISTICS
NOTE:
1. Timing is over recommended temperature and power supply voltages.
2. Typical figures are at 25°C and are for design aid only; not guaranteed and not subject to production testing.
3. High Impedance is measured by pulling to the appropriate rail with R
IDT72V8981 3.3V Time Slot Interchange
Digital Switch 128 x 128
Symbol
TX0-3
TX0-3
TX0-3
t
t
t
t
t
t
OED
t
t
TAA
TOH
ZDO
TAZ
TZA
C4i
SIS
SIH
Figure 7. Serial Outputs and External Control
Characteristics
TX0-3 Delay - Active to High Z
TX0-3 Delay - High Z to Active
TX0-3 Delay - Active to Active
TX0-3 Hold Time
Output Driver Enable Delay
Serial Input Setup Time
Serial Input Hold Time
High Z to Valid Data
Bit Cell Boundary
t
TOH
t
t
TOH
TZA
t
TAA
t
TAZ
5702 drw11
Min.





20
10
10
L
, with timing corrected to cancel time taken to discharge C
(1)
9
Typ.
 SERIAL STREAM TIMING
30
45
40
45
45
20
20
32
(2)
RX0-3
TX0-3
ODE
C4i
Max.




45
60
60
60
Figure 8. Output Driver Enable
Figure 9. Serial Inputs
Bit Cell Boundaries
t
OED
cycles
Unit
Commercial Temperature Range
ns
ns
ns
ns
ns
ns
ns
L
t
.
SIS
R
R
L
L
= 1KΩ
= 1KΩ
Test Conditions
C
C
C
t
C4i cycles
OED
t
L
L
L
SIH
= 150pF
= 150pF
= 150pF
(3)
(3)
, C
, C
5702 drw12
L
L
5702 drw13
= 150pF
= 150pF