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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 ]
 浏览型号1500457的Datasheet PDF文件第17页浏览型号1500457的Datasheet PDF文件第18页浏览型号1500457的Datasheet PDF文件第19页浏览型号1500457的Datasheet PDF文件第20页浏览型号1500457的Datasheet PDF文件第22页浏览型号1500457的Datasheet PDF文件第23页浏览型号1500457的Datasheet PDF文件第24页浏览型号1500457的Datasheet PDF文件第25页  
DUART  
Figure 7 shows the DDR SDRAM output timing diagram.  
MCK[n]  
MCK[n]  
tMCK  
tDDKHAS,tDDKHCS  
tDDKHAX,tDDKHCX  
ADDR/CMD/MODT  
Write A0  
tDDKHMP  
NOOP  
tDDKHMH  
MDQS[n]  
MDQ[x]  
tDDKHME  
tDDKHDS  
tDDKLDS  
D0  
D1  
tDDKLDX  
tDDKHDX  
Figure 7. DDR SDRAM Output Timing Diagram  
Figure 8 provides the AC test load for the DDR bus.  
GVDD/2  
Output  
Z0 = 50 Ω  
RL = 50 Ω  
Figure 8. DDR AC Test Load  
7 DUART  
This section describes the DC and AC electrical specifications for the DUART interface of the  
MPC8349EA.  
7.1  
DUART DC Electrical Characteristics  
Table 21 provides the DC electrical characteristics for the DUART interface of the MPC8349EA.  
Table 21. DUART DC Electrical Characteristics  
Parameter  
Symbol  
Min  
Max  
Unit  
High-level input voltage  
Low-level input voltage  
VIH  
VIL  
IIN  
2
OVDD + 0.3  
V
V
–0.3  
0.8  
5
Input current (0.8 V VIN 2 V)  
μA  
MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 13  
Freescale Semiconductor  
21  
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