參數(shù)資料
型號(hào)： MPC8247CZQT
廠商： Motorola, Inc.
英文描述： MPC8272 PowerQUICC II Family Hardware Specifications
中文描述： MPC8272的PowerQUICC II系列硬件規(guī)格
文件頁數(shù)： 14/56頁
文件大?。?/td> 539K
代理商： MPC8247CZQT
14
MPC8272 PowerQUICC II Family Hardware Specifications
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Power Dissipation
5
Power Dissipation
Table 7 provides preliminary, estimated power dissipation for various configurations. Note that suitable
thermal management is required to ensure the junction temperature does not exceed the maximum specified
value. Also note that the I/O power should be included when determining whether to use a heat sink. For a
complete list of possible clock configurations, refer to Section 7, “Clock Configuration Modes.”
Table 7. Estimated Power Dissipation for Various Configurations
1
6
AC Electrical Characteristics
The following sections include illustrations and tables of clock diagrams, signals, and CPM outputs and
inputs for 66.67-/83.33-/100-MHz MPC8272 devices. Note that AC timings are based on a 50-p
f
load.
Typical output buffer impedances are shown in Table 8.
Table 8. Output Buffer Impedances
1
6.1
CPM AC Characteristics
Table 9 lists CPM output characteristics.
1
Test temperature = 105
C)
2
P
INT
= I
DD
x V
DD
Watts
3
Values do not include I/O. Add the following estimates for active I/O based on the following bus speeds:
66.7 MHz = 0.35 W (nominal), 0.4 W (maximum)
83.3 MHz = 0.4 W (nominal), 0.5 W (maximum)
100 MHz = 0.5 W (nominal), 0.6 W (maximum)
Bus
(MHz)
CPM
Multiplication
Factor
CPM
(MHz)
CPU
Multiplication
Factor
CPU
(MHz)
P
INT
(W)
2, 3
Vddl 1.5 Volts
Nominal
Maximum
66.67
3
200
4
266
0.75
0.8
100
2
200
3
300
0.85
0.9
100
2
200
4
400
1
1.05
1
These are typical values at 65 C. Impedance may vary by ±25% with process and temperature.
Output Buffers
Typical Impedance (
)
60x bus
45
Memory controller
45
Parallel I/O
45
PCI
25
F
Freescale Semiconductor, Inc.
n
.
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MPC8247CZQTIEA 功能描述:微處理器 - MPU PQ27E A W/O TALITOS RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
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