參數資料
型號: XPC850SRCZT50BU
廠商: Freescale Semiconductor
文件頁數: 9/72頁
文件大?。?/td> 0K
描述: IC MPU POWERQUICC 50MHZ 256-PBGA
標準包裝: 60
系列: MPC8xx
處理器類型: 32-位 MPC8xx PowerQUICC
速度: 50MHz
電壓: 3.3V
安裝類型: 表面貼裝
封裝/外殼: 256-LBGA
供應商設備封裝: 256-PBGA(23x23)
包裝: 托盤
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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