ppc440grx Applied Micro Circuits Corporation (AMCC), ppc440grx Datasheet - Page 72
ppc440grx
Manufacturer Part Number
ppc440grx
Description
Powerpc 440grx Embedded Processor
Manufacturer
Applied Micro Circuits Corporation (AMCC)
Datasheet
1.PPC440GRX.pdf
(90 pages)
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Table 19. Clocking Specifications
440GRx – PPC440GRx Embedded Processor
Figure 5. Timing Waveform
Note: SysClk and GMCRefClk are 2.5V (3.3V tolerant). Slew rate should be measured between 0.7V and 1.7V.
72
SysClk Input
Note: Input slew rate ≥ 1V/ns
TrcClk Output
PLL VCO
Processor (CPU) Clock
MemClkOut and PLB Clock
MAL Clock
Note: The maximum supported processor clock frequency for any part is specified in the part number (see “Ordering and PVR
Information” on page 5).
Symbol
T
T
T
T
F
T
F
F
T
F
T
F
T
F
T
CS
CH
CH
CL
C
C
C
C
C
C
C
C
C
C
C
Frequency
Period
Edge stability (cycle-to-cycle jitter)
High time
Low time
Frequency
Frequency
Period
Frequency
Period
Frequency
Period
High time
Frequency
Period
Parameter
T
CH
T
40% of nominal period
40% of nominal period
45% of nominal period
C
CPU
333.33
133.33
33.33
0.750
Min
600
1.5
15
45
12
–
6
F
C
/4
T
CL
60% of nominal period
60% of nominal period
55% of nominal period
Preliminary Data Sheet
CPU
Revision 1.11 – July 22, 2008
1333.33
666.66
166.66
66.66
±0.15
83.33
Max
1.66
22.2
7.5
30
3
F
C
/4
AMCC Proprietary
Units
0.7V (0.8V)
MHz
MHz
MHz
MHz
MHz
1.7V (2.0V)
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
1
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