参数资料
型号: MPC8555VTAPFX
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 833 MHz, RISC PROCESSOR, PBGA783
封装: 29 X 29 MM, 3.75 MM HEIGHT, 1 MM PITCH, LEAD FREE, FLIP CHIP, PLASTIC, BGA-783
文件页数: 4/88页
文件大小: 1244K
代理商: MPC8555VTAPFX
MPC8555E PowerQUICC III Integrated Communications Processor Hardware Specifications, Rev. 4
12
Freescale Semiconductor
Power Characteristics
2.1.4
Output Driver Characteristics
Table 3 provides information on the characteristics of the output driver strengths. The values are
preliminary estimates.
3
Power Characteristics
The estimated typical power dissipation for this family of PowerQUICC III devices is shown in Table 4.
Table 3. Output Drive Capability
Driver Type
Programmable
Output Impedance
(
Ω)
Supply
Voltage
Notes
Local bus interface utilities signals
25
OVDD = 3.3 V
1
42 (default)
PCI signals
25
2
42 (default)
DDR signal
20
GVDD = 2.5 V
TSEC/10/100 signals
42
LVDD = 2.5/3.3 V
DUART, system control, I2C, JTAG
42
OVDD = 3.3 V
Notes:
1. The drive strength of the local bus interface is determined by the configuration of the appropriate bits in PORIMPSCR.
2. The drive strength of the PCI interface is determined by the setting of the PCI_GNT1 signal at reset.
Table 4. Power Dissipation(1) (2)
Notes:
1. The values do not include I/O supply power (OVDD, LVDD, GVDD) or AVDD.
CCB Frequency
(MHz)
Core Frequency
(MHz)
VDD
Typical Power(3)(4)
(W)
Maximum Power(5)
(W)
200
400
1.2
4.9
6.6
500
1.2
5.2
7.0
600
1.2
5.5
7.3
267
533
1.2
5.4
7.2
667
1.2
5.9
7.7
800
1.2
6.3
9.1
333
667
1.2
6.0
7.9
833
1.2
6.5
9.3
1000(6)
1.3
9.6
12.8
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