Preliminary
PowerPC 405EP Embedded Processor Data Sheet
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
V
0 to +1.95
0 to +3.6
DD
OV
Supply Voltage (I/O Interface)
V
DD
AV
PLL Supply Voltage
0 to +1.95
0 to +1.95
0 to +3.6
V
DD
V
Input Voltage (1.8V CMOS receivers)
Input Voltage (3.3V LVTTL receivers)
Input Voltage (5.0V LVTTL receivers)
Storage Temperature Range
V
IN
V
V
IN
V
0 to +5.5
V
IN
T
-55 to +150
-40 to +120
°C
°C
STG
T
Case temperature under bias
C
Note: All specified voltages are with respect to GND.
Package Thermal Specifications
The PPC405EP is designed to operate within a case temperature range of -40°C to +85°C. Thermal resistance values for
the E-PBGA packages in a convection environment are as follows:
Airflow
ft/min (m/sec)
Package—Thermal Resistance
Symbol
Unit
0 (0)
100 (0.51)
200 (1.02)
31mm, 385-balls—Junction-to-Case
θJC
θCA
2
2
2
°C/W
°C/W
1
17.8
16.8
16.1
31mm, 385-balls—Case-to-Ambient
Note:
1. For a chip mounted on a JEDEC 2S2P card without a heat sink.
2. For a chip mounted on a card with at least one signal and two power planes, the following relationships exist:
a. Case temperature, T , is measured at top center of case surface with device soldered to circuit board.
C
b. T = T – P×θCA, where T is ambient temperature and P is power consumption.
A
C
A
c. TCMax = TJMax – P×θJC, where TJMax is maximum junction temperature and P is power consumption.
Recommended DC Operating Conditions (Part 1 of 2)
Device operation beyond the conditions specified is not recommended. Extended operation beyond the recommended
conditions can affect device reliability.
Notes:
1. PCI drivers meet PCI specifications.
2. See “5V-Tolerant Input Current” on page 41.
Parameter
Symbol
Minimum
+1.65
+1.7
Typical
+1.8
Maximum
+1.95
Unit
V
Notes
V
Logic Supply Voltage (133, 200, 266MHz)
Logic Supply Voltage (333MHz)
I/O Supply Voltage
DD
V
+1.8
+1.9
V
DD
OV
+3.0
+3.3
+3.6
V
DD
Page 39 of 52
6/9/03
IBM [ IBM ]
