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M471B5673GB0-CF8

更新时间: 2023-08-15 00:00:00
品牌 Logo 应用领域
三星 - SAMSUNG 动态存储器双倍数据速率
页数 文件大小 规格书
37页 1085K
描述
DDR DRAM, 256MX64, 0.6ns, CMOS, HALOGEN FREE AND ROHS COMPLIANT, SODIMM-204

M471B5673GB0-CF8 数据手册

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Rev. 1.1  
Unbuffered SODIMM  
datasheet  
DDR3 SDRAM  
[ Table 20 ] Timing Parameters by Speed Bins for DDR3-1600, DDR3-1866 (Cont.)  
Speed  
Parameter  
Command and Address Timing  
DLL locking time  
DDR3-1600  
DDR3-1866  
Units  
NOTE  
Symbol  
MIN  
MAX  
MIN  
MAX  
tDLLK  
tRTP  
512  
-
-
512  
-
-
nCK  
max  
max  
internal READ Command to PRECHARGE Command delay  
e
(4nCK,7.5ns)  
(4nCK,7.5ns)  
Delay from start of internal write transaction to internal read com-  
mand  
max  
(4nCK,7.5ns)  
max  
(4nCK,7.5ns)  
tWTR  
-
-
e,18  
e
WRITE recovery time  
tWR  
15  
4
-
-
15  
4
-
-
ns  
Mode Register Set command cycle time  
tMRD  
nCK  
max  
(12nCK,15ns)  
max  
(12nCK,15ns)  
Mode Register Set command update delay  
CAS# to CAS# command delay  
tMOD  
tCCD  
-
-
-
-
4
4
nCK  
nCK  
WR + roundup (tRP /  
tCK(AVG))  
Auto precharge write recovery + precharge time  
tDAL(min)  
Multi-Purpose Register Recovery Time  
tMPRR  
tRAS  
1
-
1
-
nCK  
ns  
22  
e
ACTIVE to PRECHARGE command period  
See “Speed Bins and CL, tRCD, tRP, tRC and tRAS for corresponding Bin” on page 42  
max  
(4nCK,6ns)  
max  
(4nCK, 5ns)  
ACTIVE to ACTIVE command period for 1KB page size  
ACTIVE to ACTIVE command period for 2KB page size  
tRRD  
tRRD  
-
-
-
-
e
e
max  
(4nCK,7.5ns)  
max  
(4nCK, 6ns)  
Four activate window for 1KB page size  
Four activate window for 2KB page size  
tFAW  
tFAW  
30  
40  
-
-
27  
35  
-
-
ns  
ns  
e
e
tIS(base)  
AC175  
45  
-
-
-
-
-
-
-
-
-
-
ps  
ps  
ps  
ps  
b,16  
b,16  
tIS(base)  
AC150  
170  
Command and Address setup time to CK, CK referenced to  
V
(AC) / V (AC) levels  
IH  
IL  
tIS(base)  
AC135  
-
-
65  
150  
b,16  
tIS(base)  
AC125  
b,16,27  
Command and Address hold time from CK, CK referenced to  
(AC) / V (AC) levels  
tIH(base)  
DC100  
120  
560  
-
-
100  
535  
-
-
ps  
ps  
b,16  
28  
V
IH  
IL  
Control & Address Input pulse width for each input  
Calibration Timing  
tIPW  
Power-up and RESET calibration time  
Normal operation Full calibration time  
Normal operation short calibration time  
Reset Timing  
tZQinitI  
tZQoper  
tZQCS  
512  
256  
64  
-
-
-
max(512nCK,640ns)  
max(256nCK,320ns)  
max(64nCK,80ns)  
-
-
-
nCK  
nCK  
nCK  
23  
max(5nCK, tRFC +  
10ns)  
max(5nCK, tRFC +  
10ns)  
Exit Reset from CKE HIGH to a valid command  
Self Refresh Timing  
tXPR  
-
-
max(5nCK,tRFC +  
10ns)  
max(5nCK,tRFC +  
10ns)  
Exit Self Refresh to commands not requiring a locked DLL  
tXS  
-
-
Exit Self Refresh to commands requiring a locked DLL  
Minimum CKE low width for Self refresh entry to exit timing  
tXSDLL  
tCKESR  
tDLLK(min)  
-
-
tDLLK(min)  
-
-
nCK  
tCKE(min) + 1tCK  
tCKE(min) + 1nCK  
Valid Clock Requirement after Self Refresh Entry (SRE) or Power-  
Down Entry (PDE)  
max(5nCK,  
10ns)  
max(5nCK,  
10ns)  
tCKSRE  
tCKSRX  
-
-
-
-
Valid Clock Requirement before Self Refresh Exit (SRX) or Power-  
Down Exit (PDX) or Reset Exit  
max(5nCK,  
10ns)  
max(5nCK,  
10ns)  
- 32 -  

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