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PPC440EP-3JC533C 参数 Datasheet PDF下载

PPC440EP-3JC533C图片预览
型号: PPC440EP-3JC533C
PDF下载: 下载PDF文件 查看货源
内容描述: [RISC Microprocessor, 32-Bit, 533MHz, CMOS, PBGA456, 35 X 35 MM, ROHS COMPLIANT, PLASTIC, BGA-456]
分类和应用: 时钟外围集成电路
文件页数/大小: 87 页 / 1210 K
品牌: AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
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Revision 1.29 – May 07, 2008  
440EP – PPC440EP Embedded Processor  
Data Sheet  
Figure 11. DDR SDRAM Read Data Path  
Read Sample Point  
Mux  
flipflop (RDSP)  
Package pins  
Q
D
PLB bus  
ECC  
FF  
Stage 3  
Stage 1  
Stage 2  
Q
D
Q
D
D
Q
C
FF,  
XL  
FF  
FF  
Data  
DQS  
C
C
C
Read Select  
(SDRAM0_TR1[RDSL])  
(SDRAM0_TR1[RCT])  
1/4  
Cycle  
Delay  
Programmed  
Read Clock  
Delay  
PLB Clock  
FF Timing:  
T
T
= Input setup time = 0.2ns  
= Input hold time = 0.1ns  
FF: Flip-Flop  
XL: Transparent Latch  
IS  
IH  
T = Propagation delay (D to Q or C to Q) = 0.4ns maximum  
P
Table 25. I/O Timing—DDR SDRAM T  
and T  
DIN  
SIN  
Notes:  
1. TSIN = Delay from DQS at package pin to C on Stage 1 FF.  
2. TDIN = Delay from data at package pin to D on Stage 1 FF.  
3. Clock speed for the values in the table is 133MHz.  
4. The time values for TSIN include 1/4 of a cycle at 133MHz (7.5ns x 0.25 = 1.875 ns).  
TSIN (ns)  
minimum  
TSIN (ns)  
maximum  
TDIN (ns)  
minimum  
TDIN (ns)  
maximum  
Signal Name  
Signal Name  
MemData00:07  
DQS0  
DQS1  
DQS2  
DQS3  
DQS8  
2.74  
2.75  
2.74  
2.76  
2.77  
3.70  
3.69  
3.69  
3.69  
3.68  
0.86  
1.87  
1.86  
1.86  
1.85  
1.83  
MemData08:15  
MemData16:23  
MemData24:31  
ECC0:7  
0.87  
0.89  
0.88  
0.89  
In the following examples, the data strobes (DQS) and the data are shown to be coincident. There is actually a  
slight skew as specified by the SDRAM specifications, and there can be additional skew due to loading and signal  
routing. It is recommended that the signal length for all of the eight DQS signals be matched.  
80  
AMCC Proprietary  
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