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IDT72V8985 Datasheet(PDF) 12 Page - Integrated Device Technology

Part No. IDT72V8985
Description  3.3 VOLT TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256
Download  14 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT72V8985 Datasheet(HTML) 12 Page - Integrated Device Technology

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12
Commercial Temperature Range
IDT72V8985 3.3V Time Slot Interchange
Digital Switch 256 x 256
C4i
TX0-7
CCO
5707 drw12
TX0-7
(GCI)
(ST-BUS)
Bit Cell Boundary
tTAZ
tXCD
tTZA
Figure 9. Serial Outputs and External Control
Figure 10. Output Driver Enable
tOED
ODE
TX0-7
5707 drw13
tOED
Figure 11. Reset
RS
TX
5707 drw14
tZDO
tZRS
tRSZ
tRPW
AC ELECTRICAL CHARACTERISTICS(1)
 SERIAL STREAM TIMING
Symbol
Characteristics
Min.
Typ.(2)
Max.
Unit
Test Conditions
tTAZ
TX0-7 Delay - Active to High Z
30
45
ns
R
L = 1KΩ
(3), C
L = 150pF
tTZA
TX0-7 Delay - High Z to Active
45
60
ns
C
L = 150pF
tOED
Output Driver Enable Delay
45
60
ns
R
L = 1KΩ
(3), C
L = 150pF
tXCD
CCO Output Delay
0
40
60
ns
C
L = 150pF
tRSZ
Reset to High Z
5
30
ns
tZRS
High Z to Reset
0

ns
tZDO
High Z to Valid Data
32
cycles
C4i cycles
tRPW
Reset Pulse Width
100

ns
R
L = 1KΩ
(3), C
L = 150pF
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.


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