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1500457 参数 Datasheet PDF下载

1500457图片预览
型号: 1500457
PDF下载: 下载PDF文件 查看货源
内容描述: 综合主机处理器的硬件规格 [Integrated Host Processor Hardware Specifications]
分类和应用:
文件页数/大小: 87 页 / 680 K
品牌: FREESCALE [ Freescale ]
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Package and Pin Listings  
Table 55. MPC8349EA (TBGA) Pinout Listing (continued)  
Power  
Notes  
Signal  
Package Pin Number  
Pin Type  
Supply  
MVREF2  
AD2  
I
DDR  
reference  
voltage  
Notes:  
1. This pin is an open-drain signal. A weak pull-up resistor (1 kΩ) should be placed on this pin to OVDD  
.
2. This pin is an open-drain signal. A weak pull-up resistor (2–10 kΩ) should be placed on this pin to OVDD  
.
3. During reset, this output is actively driven rather than three-stated.  
4. These JTAG pins have weak internal pull-up P-FETs that are always enabled.  
5. This pin should have a weak pull-up if the chip is in PCI host mode. Follow the PCI specifications.  
6. This pin must always be tied to GND.  
7. This pin must always be left not connected.  
8. Thermal sensitive resistor.  
9. It is recommended that MDIC0 be tied to GND using an 18.2 Ω resistor and MDIC1 be tied to DDR power using an 18.2 Ω  
resistor.  
10.TSEC1_TXD[3] is required an external pull-up resistor. For proper functionality of the device, this pin must be pulled up or  
actively driven high during a hard reset. No external pull-down resistors are allowed to be attached to this net.  
11. A weak pull-up resistor (2–10 kΩ) should be placed on this pin to LVDD1  
.
12. For systems that boot from local bus (GPCM)-controlled NOR flash, a pullup on LGPL4 is required.  
MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 13  
Freescale Semiconductor  
65  
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