參數(shù)資料
型號(hào): MPC8250ACZUIFBX
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 200 MHz, RISC PROCESSOR, PBGA480
封裝: 37.50 X 37.50 MM, 1.55 MM HEIGHT, 1.27 MM PITCH, TBGA-480
文件頁(yè)數(shù): 9/62頁(yè)
文件大?。?/td> 945K
代理商: MPC8250ACZUIFBX
MPC8250 Hardware Specifications, Rev. 2
Freescale Semiconductor
17
Electrical and Thermal Characteristics
Table 10 lists SIU output characteristics.
NOTE
Activating data pipelining (setting BRx[DR] in the memory controller)
improves the AC timing. When data pipelining is activated, sp12 can be
used for data bus setup even when ECC or PARITY are used. Also, sp33a
can be used as the AC specification for DP signals.
Table 10. AC Characteristics for SIU Outputs 1
1
Output specifications are measured from the 50% level of the rising edge of CLKIN to the 50% level of the signal.
Timings are measured at the pin.
Spec Number
Characteristic
Max Delay (ns)
Min Delay (ns)
Max
Min
66 MHz 83 MHz 66 MHz 83 MHz
sp31
sp30
PSDVAL/TEA/TA
76
0.5
sp32
sp30
ADD/ADD_atr./BADDR/CI/GBL/WT
8
6.5
0.5
sp33a
sp30
Data bus
6.5
0.5
sp33b
sp30
DP
8
7
0.5
sp34
sp30
Memory controller signals/ALE
6
5
0.5
sp35
sp30
All other signals
6
5.5
0.5
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