Revision 1.26 – October 15, 2007
440EPx – PPC440EPx Embedded Processor
Preliminary Data Sheet
Device Characteristics
Table 9. 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
Internal logic supply voltage
Symbol
Value
0 to +1.65
0 to +3.6
Unit
V
Notes
VDD
1
1
1
1
OVDD
EOVDD
SOVDD
AVDD
I/O supply voltage
V
Ethernet I/O supply voltage
DDR2 (DDR1) SDRAM I/O supply voltage
System analog supply voltage
Ethernet analog supply voltage
USB PLL analog supply voltage
USB PHY analog supply voltage
Storage Temperature Range
Case temperature under bias
Notes:
0 to +2.7
V
0 to +1.94 (+2.7V)
0 to +1.65
0 to +1.65
0 to +3.6
V
V
EAVDD
U1AVDD
U2AVDD
TSTG
V
V
0 to +3.6
V
−55 to +150
−40 to +120
°C
°C
TC
2
1. If OVDD ≤ 0.4V, it is required that VDD ≤ 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. This value is not a specification of the operational temperature range, it is a stress rating only.
Table 10. 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
+1.425
Typical
+1.5
Maximum
+1.6
Unit
V
Notes
4
VDD
Logic Supply Voltage
I/O Supply Voltage
OVDD
EOVDD
SOVDD
AVDD
+3.15
+3.3
+3.45
V
4
Ethernet I/O Supply Voltage
+2.4
+2.5
+2.6
V
4
DDR2 (DDR1) SDRAM I/O Supply Voltage
System Analog Supply Voltages
Ethernet Analog Voltage
+1.7 (+2.4)
+1.425
+1.8 (+2.5)
+1.5
+1.9 (+2.6)
+1.6
V
4
V
3, 4
3, 4
3, 4
2
EAVDD
UnAVDD
SVREF
+1.425
+1.5
+1.6
V
USB Analog Voltages
+3.15
+3.3
+3.45
V
DDR2 (DDR1) SDRAM Reference Voltage
+0.85 (+1.19)
+0.9 (+1.25)
+0.95 (+1.31)
V
66
AMCC Proprietary
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
