参数资料
型号: MPC850VR80BU
厂商: Freescale Semiconductor
文件页数: 9/72页
文件大小: 0K
描述: IC MPU PWRQUICC 80MHZ 256-PBGA
标准包装: 60
系列: MPC8xx
处理器类型: 32-位 MPC8xx PowerQUICC
速度: 80MHz
电压: 3.3V
安装类型: 表面贴装
封装/外壳: 256-BGA
供应商设备封装: 256-PBGA(23x23)
包装: 托盘
MPC850 PowerQUICC Integrated Communications Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
17
Bus Signal Timing
B33a
CLKOUT rising edge to GPL
valid - as requested by control
bit GxT3 in the corresponding
word in the UPM
5.00
12.00
8.00
14.00
6.00
13.00
0.250
50.00
ns
B34
A[6–31] and D[0–31] to CS valid
- as requested by control bit
CST4 in the corresponding
word in the UPM
3.00
6.00
4.00
0.250
50.00
ns
B34a
A[6–31] and D[0–31] to CS valid
- as requested by control bit
CST1 in the corresponding
word in the UPM
8.00
13.00
11.00
0.500
50.00
ns
B34b
A[6–31] and D[0–31] to CS valid
- as requested by CST2 in the
corresponding word in UPM
13.00
21.00
17.00
0.750
50.00
ns
B35
A[6–31] to CS valid - as
requested by control bit BST4 in
the corresponding word in UPM
3.00
6.00
4.00
0.250
50.00
ns
B35a
A[6–31] and D[0–31] to BS valid
- as requested by BST1 in the
corresponding word in the UPM
8.00
13.00
11.00
0.500
50.00
ns
B35b
A[6–31] and D[0–31] to BS valid
- as requested by control bit
BST2 in the corresponding
word in the UPM
13.00
21.00
17.00
0.750
50.00
ns
B36
A[6–31] and D[0–31] to GPL
valid - as requested by control
bit GxT4 in the corresponding
word in the UPM
3.00
6.00
4.00
0.250
50.00
ns
B37
UPWAIT valid to CLKOUT
falling edge 10
6.00
6.00
6.00
50.00
ns
B38
CLKOUT falling edge to
UPWAIT valid 10
1.00
1.00
1.00
50.00
ns
B39
AS valid to CLKOUT rising edge
11
7.00
7.00
7.00
50.00
ns
B40
A[6–31], TSIZ[0–1], RD/WR,
BURST, valid to CLKOUT rising
edge.
7.00
7.00
7.00
50.00
ns
B41
TS valid to CLKOUT rising edge
(setup time)
7.00
7.00
7.00
50.00
ns
Table 6. Bus Operation Timing 1 (continued)
Num
Characteristic
50 MHz
66 MHz
80 MHz
FFACT
Cap Load
(default
50 pF)
Unit
Min
Max
Min
Max
Min
Max
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