參數(shù)資料
型號(hào): PPC440GRx-NpAfffTs
廠商: Applied Micro Circuits Corp.
英文描述: PowerPC 440GRx Embedded Processor
中文描述: 嵌入式處理器的PowerPC 440GRx
文件頁數(shù): 71/88頁
文件大?。?/td> 603K
代理商: PPC440GRX-NPAFFFTS
440GRx – PPC440GRx Embedded Processor
Revision 1.08 – October 15, 2007
Preliminary Data Sheet
AMCC Proprietary
71
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.
Table 19. Clocking Specifications
Symbol
Parameter
Min
Max
Units
Notes
SysClk Input
F
C
Frequency
33.33
66.66
MHz
T
C
Period
15
30
ns
T
CS
Edge stability (cycle-to-cycle jitter)
±0.15
ns
T
CH
High time
40% of nominal period
60% of nominal period
ns
T
CL
Low time
40% of nominal period
60% of nominal period
ns
Note:
Input slew rate
1V/ns
PLL VCO
F
C
Frequency
600
1333.33
MHz
T
C
Period
0.750
1.66
ns
Processor (CPU) Clock
F
C
Frequency
333.33
666.66
MHz
1
T
C
Period
1.5
3
ns
MemClkOut and PLB Clock
F
C
Frequency
133.33
166.66
MHz
T
C
Period
6
7.5
ns
T
CH
High time
45% of nominal period
55% of nominal period
ns
MAL Clock
F
C
Frequency
45
83.33
MHz
T
C
Period
12
22.2
ns
Notes:
1. The maximum supported processor clock frequency for any part is specified in the part number (see “Ordering and PVR Information” on
page 5).
T
CL
T
CH
T
C
1.7V (2.0V)
0.7V (0.8V)
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