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参数资料
| 型号： | MPC8280CZUBX |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 66 MHz, RISC PROCESSOR, PBGA480 |
| 封装： | 37.5 X 37.5 MM, 1.55 MM, 1.27 MM PITCH, TBGA-480 |
| 文件页数： | 15/83页 |
| 文件大小： | 618K |
| 代理商： | MPC8280CZUBX |
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MPC8280 PowerQUICC II Family Hardware Specifications, Rev. 2
22
Freescale Semiconductor
AC Electrical Characteristics
NOTE
Activating data pipelining (setting BRx[DR] in the memory controller)
improves the AC timing.
This table lists SIU input characteristics.
This table lists SIU output characteristics.
Table 13. AC Characteristics for SIU Inputs1
1 Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of CLKIN. Timings are
measured at the pin.
Spec Number
Characteristic
Value (ns)
Setup
Hold
Setup
Hold
66 MHz
83 MHz
100 MHz
66 MHz
83 MHz
100 MHz
sp11
sp10
AACK/TA/TS/DBG/BG/BR/ARTRY/
TEA
6
5
3.5
0.5
sp12
sp10
Data bus in normal mode
5
4
3.5
0.5
sp13
sp10
Data bus in ECC and PARITY modes
7
5
3.5
0.5
sp13a
sp10
Pipeline mode—Data bus (with or without
ECC/PARITY)
5
4
2.5
0.5
sp14
sp10
DP pins
7
5
3.5
0.5
sp14a
sp10
Pipeline mode—DP pins
—
4
2.5
—
0.5
sp15
sp10
All other pins
5
4
3.5
0.5
Table 14. AC Characteristics for SIU Outputs1
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
Value (ns)
Max
Min
Maximum Delay
Minimum Delay
66 MHz
83 MHz
100 MHz
66 MHz
83 MHz
100 MHz
sp31
sp30
PSDVAL/TEA/TA
76
5.5
1
11
sp32
sp30
ADD/ADD_atr./BADDR/CI/GBL/WT
8
6.5
5.5
1
sp33a
sp30
Data bus2
2 To achieve 1 ns of hold time at 66, 83, or 100 MHz, a minimum loading of 20 pF is required.
6.5
5.5
0.7
sp33b
sp30
DP
6
5.5
1
sp34
sp30
Memory controller signals/ALE
6
5.5
1
sp35
sp30
All other signals
6
5.5
1
sp35a
sp30
AP
7771
11
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