Revision 1.26 – April 25, 2007
440EP – PPC440EP Embedded Processor
Data Sheet
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
Supply Voltage (Internal Logic)
Symbol
Value
Unit
V
Notes
VDD
0 to +1.65
0 to +3.6
1
1
OVDD
SVDD
AVDD
SAVDD
VIN
Supply Voltage (I/O, except SDRAM, Ethernet)
Supply Voltage (SDRAM, Ethernet)
PLL Supply Voltage
V
0 to +2.7
V
0 to +1.65
0 to +1.65
0 to +3.6
V
2
2
SDRAM PLL Supply Voltage
Input Voltage (3.3V LVTTL receivers)
Storage Temperature Range
Case temperature under bias
Notes:
V
V
TSTG
TC
-55 to +150
-40 to +120
°C
°C
3
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. 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:
AVDD, SAVDD
VDD
L
L – SMT ferrite bead chip, Murata BLM21PG600SN1
C
C – 0.1μF ceramic
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
+1.4
Typical
+1.5
Maximum
+1.6
Unit
V
Notes
VDD
Logic Supply Voltage
I/O Supply Voltage
OVDD
SVDD
+3.0
+3.3
+3.6
V
SDRAM Supply Voltage
PLL Supply Voltages
+2.3
+2.5
+2.7
V
AVDD
+1.4
+1.5
+1.6
V
3
3
2
SAVDD
SVREF
SDRAM PLL Voltage
+1.4
+1.5
+1.6
V
DDR SDRAM Reference Voltage
+1.15
+1.25
+1.35
V
AMCC Proprietary
59
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
