IDT72V8981 Integrated Device Technology, IDT72V8981 Datasheet - Page 8

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

Bit Cells
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. Contents of Connection Memory are not lost if the clock stops, however, TX output go into the high impedance state.
IDT72V8981 3.3V Time Slot Interchange
Digital Switch 128 x 128
Symbol
F0i
C4i
C4i
F0i
t
t
t
t
t
FPW
FPH
CLK
t
t
CTT
FPS
CH
CL
Characteristics
Clock Period
Clock Width High
Clock Width Low
Clock Transition Time
Frame Pulse Setup Time
Frame Pulse Hold Time
Frame Pulse Width
t
FPH
(3)
t
CL
Channel 31
Bit 0
t
CLK
t
t
Min.
FPS
110
CTT




Figure 5. Frame Alignment
5
5
Figure 6. Clock Timing
t
CHL
(1)
8
Typ.
 CLOCK TIMING
t
244
122
122
244
20
20
20
FPW
(2)
t
CTT
Max.
150
190
190




t
FPH
Channel 0
Bit 7
Commercial Temperature Range
Unit
ns
ns
ns
ns
ns
ns
ns
t
CH
t
FPS
5702 drw10
5702 drw09