Data Sheet
June 2003
TTSV02622 STS-24 Backplane Transceiver
Timing Characteristics
All timing numbers are measured relative to 1.5 V.
All outputs are driving 35 pF maximum, 5 pF minimum, except DB pins which drive 100 pF.
T
P
T
L
SYS_CLK
T
H
SYS_FP
FIRST A1 OF STS-1 #1
INPUT BUS
T
SU
T
HD
Figure 14. Input Parallel Port Timing
Table 20. Input Parallel Port Timing Requirements
Symbol
T
P
T
L
T
H
T
SU
T
HD
Clock Period
Clock Low Time
Clock High Time
Data Setup Time
Data Hold Time
Parameter
Min
—
5.1
5.1
3
0
Typ
12.86
—
—
—
—
Max
—
7.7
7.7
—
—
Unit
ns
ns
ns
ns
ns
Agere Systems Inc.
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