RM7965A-900UI 900 MHz 64-bit Microprocessor Data Sheet
14 AC Electrical Characteristics
14.1 Capacitive Load Deration
Parameter
Symbol
Min
Max
Units
Mode
LVTTL
HSTL
Load Derate
CLD
2
ns/25pF
14.2 Clock Parameters
Parameter
Symbol Test
Conditions
Bus Speed
Units
LVTTL
HSTL
Min Max
Min Max
SysClock High
tSCHigh
tSCLow
3
3
ns
Transition 2ns
Transition 2ns
SysClock Low
ns
SysClock Frequency
SysClock Period
33.3
7.5
133
30
33.3
5
200
30
MHz
ns
tSCP
Clock Jitter for SysClock
SysClock Rise Time
SysClock Fall Time
ModeClock Period
JTAG Clock Period
tJitterIn
±150
2
±150
1.3
ps
tSCRise
tSCFall
tModeCKP
tJTAGCKP
ns
2
1.3
ns
256
256
tSCP
tSCP
4
4
14.3 System Interface Parameters
Parameter1
Symbol Test Conditions
I/O Type
Units
LVTTL I/O
HSTL I/O
Min
Max Min Max
Data
tDO
LVTTL (VccIO=3.3V):
mode[15:14]=10 (fastest) 5,6,7
HSTL (VccIO=1.5V):
0.75
4.5
0.75
0.75
2.5
ns
Output2,3,7
mode[108:107:62:15:14]=
11110 (fastest) 5,6
LVTTL (VccIO=3.3V):
0.75
5.5
2.75
ns
mode[15:14]=01 (slowest)
5,6,7
HSTL (VccIO=1.5V):
mode[108:107:62:15:14]=
11101 (slowest) 5,6,7
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2100294, Issue 2
64
PMC [ PMC-SIERRA, INC ]
