參數(shù)資料
型號(hào): MPC8544VTARJ
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 533 MHz, MICROPROCESSOR, PBGA783
封裝: 29 X 29 MM, 1 MM PITCH, LEAD FREE, PLASTIC, FC-PBGA-783
文件頁(yè)數(shù): 19/112頁(yè)
文件大?。?/td> 1294K
代理商: MPC8544VTARJ
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 0
14
Freescale Semiconductor
Input Clocks
4
Input Clocks
4.1
System Clock Timing
Table 6 provides the system clock (SYSCLK) AC timing specifications for the MPC8544E.
Local bus
32-bit, 133 MHz
0.14 W
0.24 W
32-bit, 66 MHz
0.07 W
0.13 W
32-bit, 33 MHz
0.04 W
0.07 W
eTSEC
(10/100/1000
Ethernet)
MII
0.01 W
Power per
eTSEC used
GMII
0.07 W
TBI
0.07 W
RGMII
0.04 W
RTBI
0.04 W
eTSEC (packet
FIFO)
8-bit, 200 MHz
0.11 W
Power per FIFO
interface used
8-bit, 155 MHz
0.08 W
Table 6. SYSCLK AC Timing Specifications
At recommended operating conditions (see Table 2) with OVDD = 3.3 V ± 165 mV.
Parameter/Condition
Symbol
Min
Typical
Max
Unit
Notes
SYSCLK frequency
fSYSCLK
33
133
MHz
1
SYSCLK cycle time
tSYSCLK
7.5
30.3
ns
SYSCLK rise and fall time
tKH, tKL
0.6
1.0
2.1
ns
2
SYSCLK duty cycle
tKHK/tSYSCLK
40
60
%
SYSCLK jitter
±150
ps
3, 4
Notes:
1. Caution: The CCB clock to SYSCLK ratio and e500 core to CCB clock ratio settings must be chosen such that the resulting
SYSCLK frequency, e500 (core) frequency, and CCB clock frequency do not exceed their respective maximum or minimum
operating frequencies. Refer to Section 19.2, “CCB/SYSCLK PLL Ratio,and Section 19.3, “e500 Core PLL Ratio,for ratio
settings.
2. Rise and fall times for SYSCLK are measured at 0.6 and 2.7 V.
3. This represents the total input jitter—short- and long-term.
4. The SYSCLK driver’s closed loop jitter bandwidth should be <500 kHz at –20 dB. The bandwidth must be set low to allow
cascade-connected PLL-based devices to track SYSCLK drivers with the specified jitter.
Table 5. MPC8544E Estimated I/O Power Dissipation (continued)
Interface
Parameters
1.0 V
(XVDD)
1.8 V
(GVDD)
2.5 V
(B/G/LVDD)
3.3 V
(B/L/OVDD)
Comments
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