参数资料
型号: MCF5481CZP166
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 166.66 MHz, RISC PROCESSOR, PBGA388
封装: 27 X 27 MM, 1 MM PITCH, PLASTIC, MS-034AAL-1, BGA-388
文件页数: 72/96页
文件大小: 2006K
代理商: MCF5481CZP166
74
MCF548x Integrated Microprocessor Hardware Specifications
MOTOROLA
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Document Revision History
A.6
PLL Timing Specifications
The specifications in Table 25 are for the CLKIN pin.
Figure 25. Input Clock Timing Diagram
Table 6 shows the supported PLL encodings.
PCI (PCIAD[31:0], PCIBG[4:1], PCIBG0/PCIREQOUT, PCIDEVSEL,
PCICXBE[3:0], PCIFRM, PCIPERR, PCIRESET, PCISERR, PCISTOP,
PCIPAR, PCITRDY, PCIIRDY
16 mA
50 pF
I2C (SCL, SDA)
8 mA
50 pF
BDM (PSTCLK, PSTDDATA[7:0], DSO/TDO,
8 mA
25 pF
RSTO
8 mA
50 pF
Table 25. Clock Timing Specification
Num
Characteristic
Min
Max
Units
C1
Cycle time
15.15
33.3
ns
C2
Rise time (20% of Vdd to 80% of vdd)
2
ns
C3
Fall time (80% of Vdd to 20% of Vdd)
2
ns
C4
Duty cycle (at 50% of Vdd)
40
60
%
Table 26. MCF548X Divide Ratio Encodings
AD[12:8] 1
1
All other values of AD[12:8] are reserved.
Clock Ratio
CLKIN—PCI and FlexBus
Frequency Range
(MHz)
Internal XLB and SDRAM
Bus Frequency Range
(MHz)
Core Frequency Range
(MHz)
00011
1:2
41.6–50.0
83.33–100
166.66–200
00101
1:2
30.0–41.5
60.0–83.0
120.0–166.66
Table 24. I/O Driver Capability
Signal
Drive
Capability
Output
Load (CL)
CLKIN
C4
C1
C4
C2
C3
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