TXC-04252AIPQ Transwitch Corporation, TXC-04252AIPQ Datasheet - Page 27

• Manufacturer Part Number: TXC-04252AIPQ
• Manufacturer: Transwitch Corporation

Specifications of TXC-04252AIPQ

• Pin Count: 160
• Screening Level: Industrial
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

Note: For illustration purposes, a single TU/VT (TU number 21) is shown. The V1 pulse may or may not be present. If it
DCLK clock period
DLCK duty cycle t
D(7-0)/DPAR data /parity setup time before DCLK
D(7-0)/DPAR data /parity hold time after DCLK
DSPE setup time before DCLK
DSPE hold time after DCLK
DC1J1V1 setup time before DCLK
DC1J1V1 hold time after DCLK
DIND drop bus indication output delay from DCLK
A(7-0)/APAR data /parity out valid delay from DCLK
A(7-0)/APAR data /parity to tristate delay from DCLK
ADD add indicator delay from DCLK
AIND add bus indication output delay from DCLK
A(7-0)/APAR data /parity out tristate to driven delay from
DCLK
Note: All output times are measured with the specified load capacitance.
A/BDC1J1V1
A/BD(7-0)
A/BDSPE
A/BA(7-0)
A/BDCLK
A/BDPAR
A/BDIND
A/BAPAR
A/BAIND
(Output)
A/BADD
(Output)
(Output)
(Output)
(Input)
(Input)
(Input)
(Input)
is not present, the H4 byte must be provided. An additional byte time of delay in A/BA(7-0) is provided when control
bit ABD is written with a 1. The table omits A/B parameter prefixes. DSPE edges are at payload boundaries.
Figure 7. STS-1 A/B Drop and Add Bus Signals, Timing Derived from Drop Bus
Proprietary TranSwitch Corporation Information for use Solely by its Customers.
PWH
A1
/t
Parameter
CYC
A2
t
t
SU(1)
SU(3)
C1
C1
t
SU(2)
t
t
H(1)
H(3)
DATA SHEET
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Data
t
PWH
t
H(2)
t
Data
Symbol
CYC
t
D(1)
t
t
t
t
t
t
t
t
t
OD(2)
OD(3)
OD(1)
OD(4)
OD(5)
SU(1)
t
SU(2)
t
SU(3)
t
t
CYC
H(1)
H(2)
H(3)
D(1)
t
t
Selected
OD(2)
t
t
OD(5)
TU/VT
OD(1)
OD(4)
Load
25pF
75pF
25pF
75pF
Drop Bus TU/VT Time Slot when enabled
J1
J1
Selected
TU/VT
Min
5.0
5.0
5.0
7.0
9.0
8.0
9.0
9.0
7.0
40
10
10
10
Data
Add Bus TU/VT Time Slot when enabled
154.32
V1
t
Typ
OD(3)
50
Ed. 3, December 2000
Occurs every four frames
when provided in place
Data
TXC-04252
of the H4 byte
Max
9.0
60
30
39
20
30
30
TXC-04252-MB
QE1M
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%