參數(shù)資料
型號(hào)： PPC440GRX-STA400TZ
廠商： APPLIEDMICRO INC
元件分類(lèi)： 微控制器/微處理器
英文描述： 32-BIT, 400 MHz, RISC PROCESSOR, PBGA680
封裝： 35 MM, THERMALLY ENHANCED, PLASTIC, BGA-680
文件頁(yè)數(shù)： 64/88頁(yè)
文件大小： 1367K
代理商： PPC440GRX-STA400TZ
440GRx – PPC440GRx Embedded Processor
Revision 1.08 – October 15, 2007
AMCC Proprietary
67
Preliminary Data Sheet
Power Sequencing
Startup sequencing of the power supply voltages is not required. However, a power-down cycle must complete
(OVDD and VDD are below +0.4V) before a new power-up cycle is started.
Analog Voltage Filter
The analog voltages (AVdd and EAVdd) used for the on-chip PLLs can be derived from the logic voltage, but must be filtered
before entering the PPC440GRx. A Separate filter, as shown below, is recommended for each voltage.
The filter should keep the analog voltage to analog ground compression/expansion due to noise less than +/-
50 mV.
Keep all wire lengths as short as possible.
Analog grounds must be brought out and connected to the digital ground plane at the filter capacitor.
The impedance of the ferrite bead should be much greater than that of the capacitor at frequencies where noise is
expected.
Table 14. Typical DC Power Supply Requirements Using DDR2 Memory
Frequency (MHz)
+1.5V Supply
(VDD+AVDD+EAVDD)
+1.8V Supply
(SOVDD)
+2.5V Supply
(EOVDD)
+3.3V Supply
(OVDD+UAVDD)
Total
Unit
Notes
400
1.35
0.9
0.2
0.7
3.15
W
1
533
1.45
0.9
0.2
0.7
3.25
W
1
667
1.9
0.9
0.2
0.7
3.7
W
1
Notes:
1. Typical power is estimated and is based on a nominal voltage of VDD = +1.5V, TC = 85°C, while running Linux and a test application that
exercises each functiion with representative traffic.
Table 15. Typical DC Power Supply Requirements Using DDR1 Memory
Frequency (MHz)
+1.5V Supply
(VDD+AVDD+EAVDD)
+1.8V Supply
(SOVDD)
+2.5V Supply
(SOVDD + EOVDD)
+3.3V Supply
(OVDD+UAVDD)
Total
Unit
Notes
400
1.35
na
1.3
0.7
3.35
W
1
533
1.45
na
1.3
0.7
3.45
W
1
667
1.9
na
1.3
0.7
3.9
W
1
Notes:
1. Typical power is estimated and is based on a nominal voltage of VDD = +1.5V, TC = 85°C, while running Linux and a test application that
exercises each functiion with representative traffic.
VDD
C
AVDD, SAVDD
L
L – SMT ferrite bead chip, Murata BLM21PG600SN1
C – 0.1
μF ceramic
AGND, SAGND
GND
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PPC440GRX-STA533E 制造商:AppliedMicro 功能描述:32 BIT POWERPC CORE, UP TO 667 MHZ, 2 10/100/1000 ETHERNET, - Trays
PPC440GRX-STA533EZ 制造商:AppliedMicro 功能描述:32 BIT POWERPC CORE, UP TO 667 MHZ, 2 10/100/1000 ETHERNET, - Tape and Reel
PPC440GRX-STA667E 制造商:AppliedMicro 功能描述:32 BIT POWERPC CORE, UP TO 667 MHZ, 2 10/100/1000 ETHERNET, - Trays
PPC440GRX-SUA400E 制造商:AppliedMicro 功能描述:32 BIT POWERPC CORE, UP TO 667 MHZ, 2 10/100/1000 ETHERNET, - Trays
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