參數(shù)資料
型號: MPC8270ZQMIBA
廠商: Freescale Semiconductor
文件頁數(shù): 57/83頁
文件大?。?/td> 0K
描述: IC MPU POWERQUICC II 516-PBGA
標準包裝: 40
系列: MPC82xx
處理器類型: 32-位 MPC82xx PowerQUICC II
速度: 333MHz
電壓: 1.5V
安裝類型: 表面貼裝
封裝/外殼: 516-BBGA
供應商設備封裝: 516-FPBGA(27x27)
包裝: 托盤
MPC8280 PowerQUICC II Family Hardware Specifications, Rev. 2
60
Freescale Semiconductor
Pinout
This table describes symbols used in Table 23.
8.2
VR and ZQ Packages—MPC8275 and MPC8270
The following figures and table represent the alternate 516 PBGA package. For information on the
standard package for the MPC8280 and the MPC8270, see Section 8.1, “ZU and VV
Core power
U28, U29, K28, K29, A9, A19, B19,
M1, M2, Y1, Y2, AC1, AC2, AH19,
AJ19, AH10, AJ10, AJ5
Ground
AA5, AB16, AB27, AF21, AF14, AF8,
AE7, AF11, AE17, AE23, AC26,
AB25, Y26, V25, T26, R25, P26,
M25, K27, H25, G26, D7, D10, D14,
D16, D20, D23, C9, E11, E13, E15,
E19, E22, B3, G5, H4, K5, M3, P5,
T4, Y5, AA2, AC3
1 Should be tied to VDDH via a 2K Ω external pull-up resistor.
2 The default configuration of the CPM pins (PA[0–31], PB[4–31], PC[0–31], PD[4–31]) is input. To prevent excessive DC current,
it is recommended to either pull unused pins to GND or VDDH, or to configure them as outputs.
3 Must be pulled down or left floating.
4 If PCI is not desired, must be pulled up or left floating.
5 Sphere is not connected to die.
6 GNDSYN (AB1): This pin exists as a separate ground signal in MPC826x(A) devices; it does not exist as a separate ground
signal on the SoC. New designs must connect AB1 to GND and follow the suggestions in Section 4.6, “Layout Practices.” Old
designs in which the MPC8280 is used as a drop-in replacement can leave the pin connected to GND with the noise filtering
capacitors.
7 XFC (AB2) pin: This pin is used in MPC826x(A) devices; it is not used in MPC8280 because there is no need for external
capacitor to operate the PLL. New designs should connect AB2 (XFC) pin to GND. Old designs in which the SoC is used as a
drop-in replacement can leave the pin connected to the current capacitor.
Table 24. Symbol Legend
Symbol
Meaning
OVERBAR
Signals with overbars, such as TA, are active low.
UTM
Indicates that a signal is part of the UTOPIA master interface.
UTS
Indicates that a signal is part of the UTOPIA slave interface.
UT8
Indicates that a signal is part of the 8-bit UTOPIA interface.
UT16
Indicates that a signal is part of the 16-bit UTOPIA interface.
MII
Indicates that a signal is part of the media independent interface.
RMII
Indicates that a signal is part of the reduced media independent interface.
Table 23. MPC8280 and MPC8270 (ZU and VV Packages) Pinout List (continued)
Pin Name
Ball
MPC8280/MPC8270
MPC8280 only
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