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| 型號(hào)： | MPC8245ARZU400D |
| 廠商： | Freescale Semiconductor |
| 文件頁(yè)數(shù)： | 3/16頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MPU 32BIT 400MHZ 352-TBGA |
| 標(biāo)準(zhǔn)包裝： | 24 |
| 系列： | MPC82xx |
| 處理器類型： | 32-位 MPC82xx PowerQUICC II |
| 速度： | 400MHz |
| 電壓： | 2.1V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 352-LBGA |
| 供應(yīng)商設(shè)備封裝： | 352-TBGA（35x35） |
| 包裝： | 托盤 |
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MPC8245 Hardware Specifications Addendum for the MPC8245ARXXnnnx Series, Rev. 3
Freescale Semiconductor
11
PLL Configuration
17
10111
25–332
100–132
200–264
4 (2)
2 (2)
18
11000
273–535
68–132
204–396
2.5 (2)
3 (2)
19
11001
366–661
72–132
180–330
2 (2)
2.5 (2)
1A
11010
509–661
50–66
200–264
1 (4)
4 (2)
1B
1101113
343–661
68–132
204–396
2 (2)
3 (2)
1C
11100
446–661
66–99
198–297
1.5 (2)
3 (2)
1D
11101
486–661
72–99
180–248
1.5 (2)
2.5 (2)
1E (Rev. B)
1111010
Not usable
Off
1E (Rev. D)
11110
333–575
66–114
231–399
2 (2)
3.5 (2)
1F
1111110
Not usable
Off
Notes:
1.
Limited by maximum PCI input frequency (66 MHz).
2.
Limited by maximum system memory interface operating frequency (133 MHz).
3.
Limited by minimum memory VCO frequency (132 MHz).
4.
Limited due to maximum memory VCO frequency (372 MHz).
5.
Limited by maximum CPU operating frequency (400 MHz).
6.
Limited by minimum CPU VCO frequency (360 MHz).
7.
Limited by maximum CPU VCO frequency (800 MHz).
8.
Limited by minimum CPU operating frequency (100 MHz).
9.
Limited by minimum memory bus frequency (50 MHz).
10. In clock off mode, no clocking occurs inside the MPC8245, regardless of the PCI_SYNC_IN input.
11. Range values are shown rounded down to the nearest whole number (decimal place accuracy removed) for
clarity.
12. PLL_CFG[0:4] settings that are not listed are reserved.
13. Multiplier ratios for this PLL_CFG[0:4] setting are different from the MPC8240 and are not
backwards-compatible.
14. PCI_SYNC_IN range for this PLL_CFG[0:4] setting is different from the MPC8240 and may not be fully
backwards-compatible.
15. Bits 7–4 of register offset <0xE2> contain the PLL_CFG[0:4] setting value.
16. In PLL bypass mode, the PCI_SYNC_IN input signal clocks the internal processor directly, the peripheral
logic PLL is disabled, and the bus mode is set for 1:1 (PCI:Mem) mode operation. This mode is intended for
hardware modeling support. The AC timing specifications given in this document do not apply in the PLL
bypass mode.
17. In dual PLL bypass mode, the PCI_SYNC_IN input signal clocks the internal peripheral logic directly, the
peripheral logic PLL is disabled, and the bus mode is set for 1:1 (PCI_SYNC_IN:Mem) mode operation. In
this mode, the OSC_IN input signal clocks the internal processor directly in 1:1 (OSC_IN:CPU) mode
operation, and the processor PLL is disabled. The PCI_SYNC_IN and OSC_IN input clocks must be
externally synchronized. This mode is intended for hardware modeling support. The AC timing specifications
given in this document do not apply in the dual PLL bypass mode.
Table 18. PLL Configurations for the 400-MHz Part Offering (continued)
Ref
PLL_CFG
[0:4]11,14,15
400-MHz Part 9
Multipliers
PCI Clock Input
(PCI_SYNC_IN)
Range 1
(MHz)
Periph
Logic/Mem
Bus Clock
Range
(MHz)
CPU Clock
Range
(MHz)
PCI-to-Mem
(Mem VCO)
Mem-to-CPU
(CPU VCO)
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