
8
Commercial Temperature Range
IDT728981 Time Slot Interchange
Digital Switch 128 x 128
tTAA
C4i
TX0-3
Bit Cell Boundary
5703 drw11
TX0-3
tTOH
tTAZ
tTZA
tTOH
tOED
ODE
TX0-3
5703 drw12
tOED
C4i
RX0-3
5703 drw13
Bit Cell Boundaries
tSIS
tSIH
Figure 7.
Serial Outputs and External Control
Figure 8.
Output Driver Enable
Figure 9. Serial Inputs
Symbol
Characteristics
Min.
Typ.(2)
Max.
Unit
Test Conditions
tTAZ
TX0-3 Delay - Active to High Z
20
30
60
ns
R
L = 1K
(3), C
L = 150pF
tTZA
TX0-3 Delay - High Z to Active
25
45
70
ns
C
L = 150pF
tTAA
TX0-3 Delay - Active to Active
30
45
70
ns
C
L = 150pF
tTOH
TX0-3 Hold Time
25
ns
C
L = 150pF
tOED
Output Driver Enable Delay
45
70
ns
R
L = 1K
(3), C
L = 150pF
tSIS
Serial Input Setup Time
-40
-20
ns
tSIH
Serial Input Hold Time
90
ns
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
L, with timing corrected to cancel time taken to discharge CL.
AC ELECTRICAL CHARACTERISTICS (1) SERIAL STREAM TIMING