IDT72V8980 Integrated Device Technology, IDT72V8980 Datasheet - Page 9

• Manufacturer Part Number: IDT72V8980
• Description: 3.3 Volt Time Slot Interchange Digital Switch 256 X 256
• 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
IDT72V8980 3.3V Time Slot Interchange
Digital Switch 256 x 256
Symbol
TX0-7
TX0-7
TX0-7
t
CCO
t
t
t
t
t
t
t
t
t
t
TOH
OED
t
t
ZDO
RPW
TAZ
TZA
TAA
XCH
XCD
RSZ
ZRS
SIS
SIH
C4i
Figure 7. Serial Outputs and External Control
Characteristics
TX0-7 Delay - Active to High Z
TX0-7 Delay - High Z to Active
TX0-7 Delay - Active to Active
TX0-7 Hold Time
Output Driver Enable Delay
External Control Hold Time
External Control Delay
Serial Input Setup Time
Serial Input Hold Time
Reset to High Z
High Z to Reset
High Z to Valid Data
Reset Pulse Width
Bit Cell Boundary
t
TOH
t
t
t
TOH
XCH
TZA
t
t
TAA
XCD
t
TAZ
5705 drw11
Min.
100






20
10
10
5
5
0
L
, with timing corrected to cancel time taken to discharge C
(1)
9
Typ.
 SERIAL STREAM TIMING


30
45
40
45
45
50
15
20
20
30
32
(2)
RX0-7
RS
TX
TX0-7
ODE
C4i
t
RSZ
Max.








45
60
60
60
30
Figure 8. Output Driver Enable
Bit Cell Boundaries
Figure 9. Serial Inputs
t
RPW
Figure 10. Reset
t
t
OED
ZRS
cycles
t
Unit
Commercial Temperature Range
SIS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
L
.
t
ZDO
R
R
R
L
L
L
= 1KΩ
= 1KΩ
= 1KΩ
Test Conditions
t
OED
t
SIH
C
C
C
C
C
C4i cycles
L
L
L
L
L
= 150pF
= 150pF
= 150pF
= 150pF
= 150pF
(3)
(3)
(3)
, C
, C
, C
5705 drw12
5705 drw13
L
L
L
= 150pF
= 150pF
= 150pF
5705 drw14