MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
15
Power Characteristics
The maximum power dissipation for individual power supplies of the MPC8641D is shown in
Table 5.Table 5. MPC8641D Individual Supply Maximum Power Dissipation 1
Component Description
Supply Voltage
(Volts)
Power
(Watts)
Notes
Per Core voltage Supply
VDD_Core0/VDD_Core1 = 1.1 V @ 1500 MHz
21.00
Per Core PLL voltage supply
AVDD_Core0/AVDD_Core1 = 1.1 V @ 1500 MHz
0.0125
Per Core voltage Supply
VDD_Core0/VDD_Core1 = 1.05 V @ 1333 MHz
17.00
Per Core PLL voltage supply
AVDD_Core0/AVDD_Core1 = 1.05 V @ 1333 MHz
0.0125
Per Core voltage Supply
VDD_Core0/VDD_Core1 = 0.95 V @ 1000 MHz
11.50
5
Per Core PLL voltage supply
AVDD_Core0/AVDD_Core1 = 0.95 V @ 1000 MHz
0.0125
5
DDR Controller I/O voltage supply
D
n_GVDD = 2.5 V @ 400 MHz
0.80
2
D
n_GVDD = 1.8 V @ 533 MHz
0.68
2
D
n_GVDD = 1.8 V @ 600 MHz
0.77
2
16-bit FIFO @ 200 MHz
eTsec 1&2/3&4 Voltage Supply
L/TVDD = 3.3 V
0.11
2, 3
non-FIFO eTsec
n Voltage Supply
L/TVDD = 3.3 V
0.08
2
x8 SerDes transceiver Supply
SVDD = 1.1 V
0.70
2
x8 SerDes I/O Supply
XVDD_SRDSn = 1.1 V
0.66
2
SerDes PLL voltage supply Port 1 or 2
AVDD_SRDS1/AVDD_SRDS2 = 1.1 V
0.10
Platform I/O Supply
OVDD = 3.3 V
0.45
4
Platform source Supply
VDD_PLAT = 1.1 V @ 600 MHz
12.00
Platform source Supply
VDD_PLAT = 1.05 Vn @ 500 MHz
9.80
5
Platform source Supply
VDD_PLAT = 1.05 Vn @ 400 MHz
7.70
Platform, Local Bus PLL voltage Supply
AVDD_PLAT, AVDD_LB = 1.1 V
0.0125
Notes:
1. This is a maximum power supply number which is provided for power supply and board design information. The numbers are
based on 100% bus utilization for each component. The components listed are not expected to have 100% bus usage
simultaneously for all components. Actual numbers may vary based on activity.
2. Number is based on a per port/interface value.
3. This is based on one eTSEC port used. Since 16-bit FIFO mode involves two ports, the number will need to be multiplied by
two for the total. The other eTSEC protocols dissipate less than this number per port. Note that the power needs to be
multiplied by the number of ports used for the protocol for the total eTSEC port power dissipation.
4.This includes Local Bus, DUART, I2C, DMA, Multiprocessor Interrupts, System Control & Clocking, Debug, Test, Power
management, JTAG and Miscellaneous I/O voltage.
5. These power numbers are for Part Number MC8641xxx1000NX only. VDD_Coren = 0.95 V and VDD_PLAT = 1.05 V.