RELEASED
PMC-Sierra, Inc.
PM9311/2/3/5 ETT1™ CHIP SET
Data Sheet
PMC-2000164
ISSUE 3
ENHANCED TT1™ SWITCH FABRIC
6.5 AC ELECTRICAL CHARACTERISTICS
Table 58. AC Electrical Characteristics for 3.3V-tolerant 2.5V CMOS (OOB Interface)
Symbol
tsu1
Parameter
InputSetup
Input Hold
Conditions
Min
7.6
Typ
Max
Units
Trf=2ns
Referenced to
OOB_clock.
th1
2.4
a
tval1
OutputValid
12
R1=50 Ohm, C1=1 pF
Referenced to
tsus1
OutputSustain
1.7
ns
OOB_clock.
Output
Rise/Fall Time
a
tr1, tf1
1.0
tper1
tph1
tpl1
ClockPeriod
ClockPulseHigh
ClockPulseLow
40
20
Defines
OOB_clock.
a. This parameter is not tested. It is provided here as a reasonable guide to design, based on expected
process parameters.
Table 59. AC Electrical Characteristics for 2.5V CMOS (JTAG Interface)
Symbol
tsu2
Parameter
InputSetup
Input Hold
Conditions
Min
Typ
Max
Units
a
Trf=2ns
Referenced to
jtag_clock.
24
a
th2
13
a
tval2
OutputValid
OutputSustain
37
R1=50 Ohm, C1=1 pF
Referenced to
a
tsus2
20
ns
jtag_clock.
Output
Rise/Fall Time
a
tr2, tf2
1.0
tper2
tph2
tpl2
ClockPeriod
ClockPulseHigh
ClockPulseLow
100
Defines
jtag_clock.
a
45
a. This parameter is not tested. It is provided here as a reasonable guide to design, based on expected
process parameters.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
305
PMC [ PMC-SIERRA, INC ]
