mpc8555e Freescale Semiconductor, Inc, mpc8555e Datasheet - Page 9

• Manufacturer Part Number: mpc8555e
• Description: Mpc8555e Powerquicc Iii Processor With Integrated Security
• Manufacturer: Freescale Semiconductor, Inc

2.1.1
Table 1
2.1.2
The MPC8555Erequires its power rails to be applied in a specific sequence in order to ensure proper device
operation. These requirements are as follows for power up:
Freescale Semiconductor
Core supply voltage
PLL supply voltage
DDR DRAM I/O voltage
Three-speed Ethernet I/O, MII management voltage
CPM, PCI, local bus, DUART, system control and power
management, I
Input voltage
Storage temperature range
Notes:
1. Functional and tested operating conditions are given in
2. Caution: MV
3. Caution: OV
4. Caution: LV
5. (M,L,O)V
6. OV
functional operation at the maximums is not guaranteed. Stresses beyond those listed may affect device reliability or cause
permanent damage to the device.
power-on reset and power-down sequences.
power-on reset and power-down sequences.
power-on reset and power-down sequences.
shown in
1. V
2. GV
IN
MPC8555E PowerQUICC™ III Integrated Communications Processor Hardware Specification, Rev. 4.2
provides the absolute maximum ratings.
on the PCI interface may overshoot/undershoot according to the PCI Electrical Specification for 3.3-V operation, as
DD
IN
Figure
DD
Absolute Maximum Ratings
Power Sequencing
, AV
and MV
2
IN
C, and JTAG I/O voltage
IN
, LV
IN
must not exceed LV
must not exceed OV
must not exceed GV
DDn
3.
DD
REF
Characteristic
, OV
may overshoot/undershoot to a voltage and for a maximum duration as shown in
DDR DRAM signals
DDR DRAM reference
Three-speed Ethernet signals
CPM, Local bus, DUART,
SYSCLK, system control and
power management, I
JTAG signals
PCI
DD
(I/O supplies)
DD
DD
DD
Table 1. Absolute Maximum Ratings
by more than 0.3 V. This limit may be exceeded for a maximum of 20 ms during
by more than 0.3 V. This limit may be exceeded for a maximum of 20 ms during
by more than 0.3 V. This limit may be exceeded for a maximum of 20 ms during
2
C, and
Table
2. Absolute maximum ratings are stress ratings only, and
Symbol
MV
GV
OV
AV
LV
MV
T
OV
OV
LV
V
STG
DD
DD
REF
DD
DD
DD
IN
IN
IN
IN
0.3 to 1.43 (for 1 GHz only)
0.3 to 1.43 (for 1 GHz only)
–0.3 to (OV
–0.3 to (GV
–0.3 to (GV
–0.3 to (OV
–0.3 to (LV
1
–0.3 to 1.32
–0.3 to 1.32
–0.3 to 3.63
–0.3 to 3.63
–0.3 to 2.75
–0.3 to 3.63
Max Value
–55 to 150
DD
DD
DD
DD
DD
+ 0.3)1
+ 0.3)
+ 0.3)
+ 0.3)
+ 0.3)
Electrical Characteristics
Figure
Unit
°C
V
V
V
V
V
V
V
V
V
V
2.
Notes
2, 5
2, 5
4, 5
3
5
6
9