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256M4 参数 Datasheet PDF下载

256M4图片预览
型号: 256M4
PDF下载: 下载PDF文件 查看货源
内容描述: 1GB : X4,X8 , X16 DDR3 SDRAM [1Gb: x4, x8, x16 DDR3 SDRAM]
分类和应用: 动态存储器双倍数据速率
文件页数/大小: 181 页 / 8341 K
品牌: MDTIC [ Micon Design Technology Corporation ]
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Ta b le 53:  
Ele ct rica l Ch a ra ct e rist ics a n d AC Op e ra t in g Co n d it io n s (Sh e e t 1 o f 7)  
Notes: 1–8 apply to the entire table; notes appear on page 74  
DDR3-800  
DDR3-1066  
DDR3-1333  
DDR3-1600  
Pa ra m e t e r  
Sym b o l  
Min  
Ma x  
Min  
Ma x  
Min  
Ma x  
Min  
Ma x  
Un it s No t e s  
Clo ck Tim in g  
Clock period average: TC = 0°C to 85°C  
tCKDLL_DIS  
8
8
7,800  
3,900  
8
8
7,800  
3,900  
8
8
7,800  
3,900  
8
8
7,800  
3,900  
ns  
ns  
9
DLL disable mode  
TC = >85°C to 95°C  
t
Clock period average: DLL enable mode  
High pulse width average  
tCK (AVG)  
tCH (AVG)  
tCL (AVG)  
tJITPER  
See “Speed Bin Tableson page 63 for CK range allowed  
ns  
10, 11  
12  
0.47  
0.47  
–100  
–90  
0.53  
0.53  
100  
90  
0.47  
0.47  
–90  
0.53  
0.53  
90  
0.47  
0.47  
–80  
0.53  
0.53  
80  
0.47  
0.47  
–70  
0.53  
0.53  
70  
CK  
CK  
ps  
Low pulse width average  
12  
Clock period jitter  
DLL locked  
DLL locking  
13  
tJITPER, LCK  
–80  
80  
–70  
70  
–60  
60  
ps  
13  
t
t
t
t
Clock absolute period  
tCK(ABS) MIN = CK (AVG) MIN + JITPER MIN; MAX = CK (AVG) MAX + JITPER MAX  
ps  
Clock absolute high pulse width  
tCH (ABS)  
0.43  
0.43  
0.43  
0.43  
tCK  
(AVG)  
tCK  
14  
15  
Clock absolute low pulse width  
tCL (ABS)  
0.43  
0.43  
0.43  
0.43  
(AVG)  
Cycle-to-cycle jitter  
DLL locked  
DLL locking  
2 cycles  
tJITCC  
tJITCC, LCK  
tERR2PER  
tERR3PER  
tERR4PER  
tERR5PER  
tERR6PER  
tERR7PER  
tERR8PER  
tERR9PER  
tERR10PER  
tERR11PER  
tERR12PER  
tERRnPER  
200  
180  
180  
160  
160  
140  
140  
120  
ps  
ps  
ps  
ps  
ps  
ps  
ps  
ps  
ps  
ps  
ps  
ps  
ps  
ps  
16  
16  
17  
17  
17  
17  
17  
17  
17  
17  
17  
17  
17  
17  
Cumulative error  
across  
–147  
–175  
–194  
–209  
–222  
–232  
–241  
–249  
–257  
–263  
–269  
147  
175  
194  
209  
222  
232  
241  
249  
257  
263  
269  
–132  
–157  
–175  
–188  
–200  
–209  
–217  
–224  
–231  
–237  
–242  
132  
157  
175  
188  
200  
209  
217  
224  
231  
237  
242  
–118  
–140  
–155  
–168  
–177  
–186  
–193  
–200  
–205  
–210  
–215  
118  
140  
155  
168  
177  
186  
193  
200  
205  
210  
215  
–103  
–122  
–136  
–147  
–155  
–163  
–169  
–175  
–180  
–184  
–188  
103  
122  
136  
147  
155  
163  
169  
175  
180  
184  
188  
3 cycles  
4 cycles  
5 cycles  
6 cycles  
7 cycles  
8 cycles  
9 cycles  
10 cycles  
11 cycles  
12 cycles  
t
n = 13, 14 . . . 49, 50  
cycles  
tERRnPER MIN = (1 + 0.68ln[n]) × JITPER MIN  
tERRnPER MAX = (1 + 0.68ln[n]) × JITPER MAX  
t