参数资料
型号: XPC850CVR50BUR2
厂商: Freescale Semiconductor
文件页数: 4/72页
文件大小: 0K
描述: IC MPU POWERQUICC 50MHZ 256-PBGA
标准包装: 500
系列: MPC8xx
处理器类型: 32-位 MPC8xx PowerQUICC
速度: 50MHz
电压: 3.3V
安装类型: 表面贴装
封装/外壳: 256-LBGA
供应商设备封装: 256-PBGA(23x23)
包装: 带卷 (TR)
MPC850 PowerQUICC Integrated Communications Processor Hardware Specifications, Rev. 2
12
Freescale Semiconductor
Bus Signal Timing
B9
CLKOUT to A[6–31] RD/WR,
BURST, D[0–31], DP[0–3],
TSIZ[0–1], REG, RSV, AT[0–3],
PTR high-Z
5.00
11.75
7.58
14.33
6.25
13.00
0.250
50.00
ns
B11
CLKOUT to TS, BB assertion
5.00
11.00
7.58
13.58
6.25
12.25
0.250
50.00
ns
B11a
CLKOUT to TA, BI assertion,
(When driven by the memory
controller or PCMCIA interface)
2.50
9.25
2.50
9.25
2.50
9.25
50.00
ns
B12
CLKOUT to TS, BB negation
5.00
11.75
7.58
14.33
6.25
13.00
0.250
50.00
ns
B12a
CLKOUT to TA, BI negation
(when driven by the memory
controller or PCMCIA interface)
2.50
11.00
2.50
11.00
2.50
11.00
50.00
ns
B13
CLKOUT to TS, BB high-Z
5.00
19.00
7.58
21.58
6.25
20.25
0.250
50.00
ns
B13a
CLKOUT to TA, BI high-Z,
(when driven by the memory
controller or PCMCIA interface)
2.50
15.00
2.50
15.00
2.50
15.00
50.00
ns
B14
CLKOUT to TEA assertion
2.50
10.00
2.50
10.00
2.50
10.00
50.00
ns
B15
CLKOUT to TEA high-Z
2.50
15.00
2.50
15.00
2.50
15.00
50.00
ns
B16
TA, BI valid to CLKOUT(setup
time) 5
9.75
9.75
9.75
50.00
ns
B16a
TEA, KR, RETRY, valid to
CLKOUT (setup time) 5
10.00
10.00
10.00
50.00
ns
B16b
BB, BG, BR valid to CLKOUT
(setup time) 6
8.50
8.50
8.50
50.00
ns
B17
CLKOUT to TA, TEA, BI, BB,
BG, BR valid (Hold time).5
1.00
1.00
1.00
50.00
ns
B17a
CLKOUT to KR, RETRY, except
TEA valid (hold time)
2.00
2.00
2.00
50.00
ns
B18
D[0–31], DP[0–3] valid to
CLKOUT rising edge (setup
time) 7
6.00
6.00
6.00
50.00
ns
B19
CLKOUT rising edge to
D[0–31], DP[0–3] valid (hold
time) 7
1.00
1.00
1.00
50.00
ns
B20
D[0–31], DP[0–3] valid to
CLKOUT falling edge (setup
time) 8
4.00
4.00
4.00
50.00
ns
B21
CLKOUT falling edge to
D[0–31], DP[0–3] valid (hold
time) 8
2.00
2.00
2.00
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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