參數(shù)資料
型號: PPC440EP
廠商: Applied Micro Circuits Corp.
英文描述: Power PC 440EP Embedded Processor
中文描述: 440EP的Power PC嵌入式處理器
文件頁數(shù): 61/84頁
文件大?。?/td> 541K
代理商: PPC440EP
AMCC Proprietary
61
440EP – PPC440EP Embedded Processor
Data Sheet
Revision 1.26 – April 25, 2007
Power Sequencing
Startup sequencing of the power supply voltages is not required. However, a power-down cycle must complete
(OV
DD
and V
DD
are below +0.4V) before a new power-up cycle is started.
Table 9. Input Capacitance
Parameter
Symbol
Maximum
Unit
Notes
Group 1 (2.5V SSTL I/O)
C
IN1
2.5
pF
Group 2 (3.3V LVTTL I/O)
C
IN2
2.1
pF
Group 3 (PCI I/O)
C
IN3
2.5
pF
Group 4 (Receivers)
C
IN4
0.9
pF
Group 5 (3.3V tolerant CMOS I/O)
C
IN5
2.4
pF
Group 6 (USB)
C
IN6
4.5
pF
Table 10. Typical DC Power Supply Requirements
Frequency (MHz)
+1.5V Supply
(V
DD
+AV
DD
+SAV
DD
)
+2.5V Supply
(SV
DD
)
+3.3V Supply
(OV
DD
)
Total
Unit
Notes
333
1.15
1.15
0.04
2.34
W
1
400
1.24
1.15
0.04
2.43
W
1
533
1.43
1.15
0.04
2.62
W
1
667
2.08
1.15
0.04
3.27
W
1
Notes:
1. Typical Power is based on nominal voltage of V
DD
= +1.5V and
T
C
= max. specified in Table 8 on page 59, while running Linux and a test
application that exercises each core with representative traffic.
Table 11. V
DD
Supply Power Dissipation
Frequency (MHz)
+1.4V
+1.5V
+1.6V
Unit
Notes
333
0.96
1.15
1.38
W
1
400
1.04
1.24
1.49
W
1
533
1.20
1.43
1.71
W
1
667
1.74
2.08
2.52
W
1
Notes:
1. Power is based on V
DD
specified in the table and
T
C
= max. specified in Table 8 on page 59, while running Linux and a test application
that exercises each core with representative traffic.
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