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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)： | 59/84頁 |
| 文件大?。?/td> | 541K |
| 代理商： | PPC440EP |
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AMCC Proprietary
59
440EP – PPC440EP Embedded Processor
Data Sheet
Revision 1.26 – April 25, 2007
Device Characteristics
Table 7. Absolute Maximum Ratings
The absolute maximum ratings below are stress ratings only.
Operation at or beyond these maximum ratings can cause
permanent damage to the device. None of the performance specification contained in this document are guaranteed when
operating at these maximum ratings.
Characteristic
Symbol
Value
Unit
Notes
Supply Voltage (Internal Logic)
V
DD
0 to +1.65
V
1
Supply Voltage (I/O, except SDRAM, Ethernet)
OV
DD
0 to +3.6
V
1
Supply Voltage (SDRAM, Ethernet)
SV
DD
0 to +2.7
V
PLL Supply Voltage
AV
DD
0 to +1.65
V
2
SDRAM PLL Supply Voltage
SAV
DD
0 to +1.65
V
2
Input Voltage (3.3V LVTTL receivers)
V
IN
0 to +3.6
V
Storage Temperature Range
T
STG
-55 to +150
°
C
Case temperature under bias
T
C
-40 to +120
°
C
3
Notes:
1. If OV
DD
≤
0.4V, it is required that V
DD
≤
0.4V. Supply excursions not meeting this criteria must be limited to less than 25ms duration
during each power up or power down event.
2. The analog voltages used for the on-chip PLLs can be derived from the logic voltage, but must be filtered before entering the
PPC440EP. A separate filter, as shown below, is recommended for each voltage:
3. This value is not a specification of the operational temperature range, it is a stress rating only.
Table 8. Recommended DC Operating Conditions (Sheet 1 of 2)
Device operation beyond the conditions specified is not recommended. Extended operation beyond the recommended
conditions can affect device reliability.
Parameter
Symbol
Minimum
Typical
Maximum
Unit
Notes
Logic Supply Voltage
V
DD
+1.4
+1.5
+1.6
V
I/O Supply Voltage
OV
DD
+3.0
+3.3
+3.6
V
SDRAM Supply Voltage
SV
DD
+2.3
+2.5
+2.7
V
PLL Supply Voltages
AV
DD
+1.4
+1.5
+1.6
V
3
SDRAM PLL Voltage
SAV
DD
+1.4
+1.5
+1.6
V
3
DDR SDRAM Reference Voltage
SV
REF
+1.15
+1.25
+1.35
V
2
V
DD
C
AV
DD,
SAV
DD
L
L – SMT ferrite bead chip, Murata BLM21PG600SN1
C –
0.1
μ
F ceramic
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