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參數(shù)資料
| 型號： | PPC440EPx-SpAfffTs |
| 廠商： | Applied Micro Circuits Corp. |
| 英文描述： | PowerPC 440EPx Embedded Processor |
| 中文描述： | 嵌入式處理器的PowerPC 440EPx |
| 文件頁數(shù)： | 69/94頁 |
| 文件大小： | 738K |
| 代理商： | PPC440EPX-SPAFFFTS |
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Receiver
AC Overshoot (V)
DC Overshoot (V)
DC Undershoot (V)
AC Undershoot (V)
T
OS
3.3V LVTTL
3.9
3.6
-0.16
-0.6
0.1*T
CYC1
2.5V (3.3V tolerant)
3.9
3.6
-0.16
-0.6
0.1*T
CYC1
DDR
1.2*SOV
DD
SOV
DD
+ 0.3
-0.3
-0.6
0.1/MemClkOut
PCI
1.2*OV
DD
OV
DD
+ 0.5
-0.5
-0.2*OV
DD
0.1/PCIClk
Notes:
1. T
is the period of the bus clock.
1/PerClk - EBC and NAND flash interfaces.
1/GMCRXClk - GMII and MII modes
1/SMIIRefClk - SMII mode
1/GMCGRXClk - RGMII mode
1/USB2Clk - UTMI
1/TrcClk - instruction trace interface
1/IIC0Clk and 1/IIC1Clk - IIC interfaces
1/SPIClkOut - SPI
440EPx – PPC440EPx Embedded Processor
Revision 1.26 – October 15, 2007
Preliminary Data Sheet
AMCC Proprietary
69
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 +0.4 V) before a new power-up cycle is started.
Analog Voltage Filter
The analog voltages (AVdd, EAVdd, and UnAVdd) used for the on-chip PLLs can be derived from the logic voltage, but must be
filtered before the PPC440EPx. 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.
V
DD
C
L
L – SMT ferrite bead chip, Murata
BLM21PG600SN1
GND
AV
DD
, SAV
DD
, UnAVdd
AGND, SAGND, UnAGND
Table 12. Overshoot and Undershoot
相關(guān)PDF資料 |
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|---|---|
| PPC440EP | Power PC 440EP Embedded Processor |
| PPC440EP-3pbfffCx | Power PC 440EP Embedded Processor |
| PPC440GP-3CC333C | Power PC 440GP Embedded Processor |
| PPC440GP-3CC400C | Power PC 440GP Embedded Processor |
| PPC440GP-3CC400CZ | Power PC 440GP Embedded Processor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PPC440EPX-STA400E | 制造商:AppliedMicro 功能描述:32 BIT POWERPC CORE, UP TO 667 MHZ, 2 10/100/1000 ETHERNET, - Trays |
| PPC440EPX-STA400EZ | 制造商:AppliedMicro 功能描述:32 BIT POWERPC CORE, UP TO 667 MHZ, 2 10/100/1000 ETHERNET, - Tape and Reel |
| PPC440EPX-STA533E | 制造商:AppliedMicro 功能描述:32 BIT POWERPC CORE, UP TO 667 MHZ, 2 10/100/1000 ETHERNET, - Trays |
| PPC440EPX-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 |
| PPC440EPX-STA667E | 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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