M368L6423EUM-CC4 [SAMSUNG]

DDR DRAM Module, 64MX64, 0.65ns, CMOS, DIMM-184;
M368L6423EUM-CC4
型号: M368L6423EUM-CC4
厂家: SAMSUNG    SAMSUNG
描述:

DDR DRAM Module, 64MX64, 0.65ns, CMOS, DIMM-184

动态存储器 双倍数据速率
文件: 总19页 (文件大小:288K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
DDR SDRAM Unbuffered Module  
(DDR400 Module)  
184pin Unbuffered Module based on 256Mb E-die  
64/72-bit ECC/Non ECC  
66 TSOP(II) with Pb-Free  
(RoHS compliant)  
Revision 1.0  
Oct. 2004  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
Revision History  
Revision 1.0 (October, 2004)  
- First release  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
184Pin Unbuffered DIMM based on 256Mb E-die (x8)  
Ordering Information  
Part Number  
Density  
256MB  
512MB  
256MB  
512MB  
Organization  
32M x 64  
64M x 64  
32M x 72  
64M x 72  
Component Composition  
Height  
1,250mil  
1,250mil  
1,250mil  
1,250mil  
M368L3223EUM-C(L)CC/C4  
M368L6423EUM-C(L)CC/C4  
M381L3223EUM-C(L)CC/C4  
M381L6423EUM-C(L)CC/C4  
32Mx8( K4H560838E) * 8EA  
32Mx8( K4H560838E) * 16EA  
32Mx8( K4H560838E) * 9EA  
32Mx8( K4H560838E) * 18EA  
Operating Frequencies  
CC(DDR400@CL=3)  
200MHz  
C4(DDR400@CL=3)  
Speed @CL3  
CL-tRCD-tRP  
200MHz  
3-4-4  
3-3-3  
Feature  
• Power supply : Vdd: 2.6V ± 0.1V, Vddq: 2.6V ± 0.1V  
• Double-data-rate architecture; two data transfers per clock cycle  
• Bidirectional data strobe(DQS)  
• Differential clock inputs(CK and CK)  
• DLL aligns DQ and DQS transition with CK transition  
• Programmable Read latency 3 (clock) for DDR400 , 2.5 (clock) for DDR333  
• Programmable Burst length (2, 4, 8)  
• Programmable Burst type (sequential & interleave)  
• Edge aligned data output, center aligned data input  
• Auto & Self refresh, 7.8us refresh interval(8K/64ms refresh)  
• Serial presence detect with EEPROM  
• PCB : Height 1,250 (mil), single (256MB) and double(512MB) sided  
• SSTL_2 Interface Pb-Free  
RoHS compliant  
SAMSUNG ELECTRONICS CO., Ltd. reserves the right to change products and specifications without notice.  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
Pin Configuration (Front side/back side)  
Pin  
Front  
Pin  
Front  
Pin  
Front  
Pin  
Back  
Pin  
Back  
Pin  
Back  
1
2
3
4
5
6
7
8
VREF  
DQ0  
VSS  
DQ1  
DQS0  
DQ2  
VDD  
DQ3  
NC  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
A5  
DQ24  
VSS  
DQ25  
DQS3  
A4  
VDD  
DQ26  
DQ27  
A2  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
91  
92  
VDDQ  
/WE  
DQ41  
/CAS  
VSS  
DQS5  
DQ42  
DQ43  
VDD  
*/CS2  
DQ48  
DQ49  
VSS  
93  
94  
95  
96  
97  
VSS  
DQ4  
DQ5  
VDDQ  
DM0  
DQ6  
DQ7  
VSS  
124  
125  
126  
127  
128  
129  
130  
131  
132  
133  
134  
135  
136  
137  
138  
139  
140  
141  
142  
143  
144  
VSS  
A6  
154  
155  
156  
157  
158  
159  
160  
161  
162  
163  
164  
165  
166  
167  
168  
169  
170  
171  
172  
173  
174  
175  
176  
177  
178  
179  
180  
181  
182  
183  
184  
/RAS  
DQ45  
VDDQ  
/CS0  
/CS1  
DM5  
DQ28  
DQ29  
VDDQ  
DM3  
A3  
DQ30  
VSS  
DQ31  
CB4  
CB5  
VDDQ  
CK0  
/CK0  
VSS  
DM8  
A10  
98  
99  
VSS  
100  
101  
102  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
117  
118  
119  
120  
121  
122  
123  
DQ46  
DQ47  
*/CS3  
VDDQ  
DQ52  
DQ53  
*A13  
9
NC  
NC  
NC  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
NC  
VSS  
VSS  
A1  
DQ8  
DQ9  
DQS1  
VDDQ  
CK1  
VDDQ  
DQ12  
DQ13  
DM1  
VDD  
DQ14  
DQ15  
CKE1  
VDDQ  
*BA2  
DQ20  
A12  
VSS  
DQ21  
A11  
DM2  
VDD  
DQ22  
A8  
CB0  
CB1  
VDD  
DQS8  
A0  
CB2  
VSS  
CB3  
BA1  
/CK2  
CK2  
VDD  
DM6  
VDDQ  
DQS6  
DQ50  
DQ51  
VSS  
VDDID  
DQ56  
DQ57  
VDD  
DQS7  
DQ58  
DQ59  
VSS  
/CK1  
VSS  
DQ54  
DQ55  
VDDQ  
NC  
DQ60  
DQ61  
VSS  
DQ10  
DQ11  
CKE0  
VDDQ  
DQ16  
DQ17  
DQS2  
VSS  
A9  
DQ18  
A7  
VDDQ  
DQ19  
CB6  
VDDQ  
CB7  
KEY  
KEY  
53  
54  
55  
56  
57  
58  
59  
60  
61  
DQ32  
VDDQ  
DQ33  
DQS4  
DQ34  
VSS  
BA0  
DQ35  
DQ40  
145  
146  
147  
148  
149  
150  
151  
152  
153  
VSS  
DQ36  
DQ37  
VDD  
DM7  
DQ62  
DQ63  
VDDQ  
SA0  
SA1  
SA2  
DM4  
DQ38  
DQ39  
VSS  
NC  
SDA  
SCL  
DQ23  
DQ44  
VDDSPD  
Note :  
1. * : These pins are not used in this module.  
2. Pins 44, 45, 47, 49, 51, 134, 135, 140, 142, 144 are used on x72 module, and are not used on x64 module.  
3. Pins 111, 158 are NC for 1 Row Module[M368(81)L3223EUM] & used for 2 Row Moduel[M368(81)L6423EUM]  
Pin Description  
Pin Name  
Function  
Pin Name  
Function  
A0 ~ A12  
Address input (Multiplexed) DM0 ~ 7, 8(for ECC) Data - in mask  
BA0 ~ BA1  
Bank Select Address  
Data input/output  
Data Strobe input/output  
Clock input  
VDD  
Power supply (2.6V)  
DQ0 ~ DQ63  
VDDQ  
VSS  
Power Supply for DQS(2.6V)  
Ground  
DQS0 ~ DQS8  
CK0,CK0 ~ CK2, CK2  
VREF  
VDDSPD  
SDA  
Power supply for reference  
CKE0, CKE1(for double banks) Clock enable input  
Serial EEPROM Power/Supply ( 2.3V to 3.6V )  
Serial data I/O  
CS0, CS1(for double banks)  
Chip select input  
RAS  
Row address strobe  
Column address strobe  
Write enable  
SCL  
Serial clock  
CAS  
SA0 ~ 2  
NC  
Address in EEPROM  
No connection  
WE  
CB0 ~ CB7 (for x72 module)  
Check bit(Data-in/data-out)  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
256MB, 32M x 64 Non ECC Module (M368L3223EUM) (Populated as 1 bank of x8 DDR SDRAM Module)  
Functional Block Diagram  
CS0  
DQS0  
DM0  
DQS4  
DM4  
DM  
I/O 7  
CS DQS  
D4  
DQS  
CS  
D0  
DM  
I/O 7  
DQ32  
DQ33  
DQ34  
DQ35  
DQ36  
DQ37  
DQ38  
DQ39  
DQ0  
DQ1  
DQ2  
DQ3  
DQ4  
DQ5  
DQ6  
DQ7  
Serial PD  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
SCL  
WP  
SDA  
A0  
A1  
A2  
SA0 SA1 SA2  
DQS5  
DM5  
DQS1  
DM1  
DQS  
DM  
CS  
D5  
DQS  
CS  
D1  
DM  
VDDSPD  
DQ40  
DQ41  
DQ42  
DQ43  
DQ44  
DQ45  
DQ46  
DQ47  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
DQ8  
DQ9  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
SPD  
VDD/VDDQ  
D0 - D7  
D0 - D7  
DQ10  
DQ11  
DQ12  
DQ13  
DQ14  
DQ15  
VREF  
VSS  
D0 - D7  
D0 - D7  
DQS6  
DM6  
DQS2  
DM2  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D6  
CS DQS  
D2  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
DQ48  
DQ49  
DQ50  
DQ51  
DQ52  
DQ53  
DQ54  
DQ55  
DQ16  
DQ17  
DQ18  
DQ19  
DQ20  
DQ21  
DQ22  
DQ23  
*Clock Net Wiring  
D3/D0/D6  
Cap/Cap/Cap  
D4/D1/D7  
DQS7  
DM7  
DQS3  
DM3  
R=120  
CK0/1/2  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D7  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D3  
Card  
Edge  
Cap/Cap/Cap  
D5/D2/Cap  
DQ56  
DQ57  
DQ58  
DQ59  
DQ60  
DQ61  
DQ62  
DQ63  
DQ24  
DQ25  
DQ26  
DQ27  
DQ28  
DQ29  
DQ30  
DQ31  
*If two DRAMs are loaded,  
Cap will replace DRAM  
Cap/Cap/Cap  
Notes :  
BA0 - BA1  
BA0-BA1 : DDR SDRAMs D0 - D7  
A0-A12 : DDR SDRAMs D0 - D7  
RAS : DDR SDRAMs D0 - D7  
CAS : DDR SDRAMs D0 - D7  
CKE : DDR SDRAMs D0 - D7  
WE : DDR SDRAMs D0 - D7  
1. DQ-to-I/O wiring is shown as recommended  
but may be changed.  
2. DQ/DQS/DM/CKE/CS relationships must be  
maintained as shown.  
3. DQ, DQS, DM/DQS resistors: 22 Ohms + 5%.  
4. BAx, Ax, RAS, CAS, WE resistors: 5.1 Ohms +  
5%  
Clock Wiring  
A0 - A12  
RAS  
Clock  
Input  
SDRAMs  
3 SDRAMs  
3 SDRAMs  
2 SDRAMs  
CK0/CK0  
CK1/CK1  
CK2/CK2  
CAS  
CKE0  
WE  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
256MB, 32M x 72 ECC Module (M381L3223EUM) (Populated as 1 bank of x8 DDR SDRAM Module)  
Functional Block Diagram  
CS0  
DQS0  
DM0  
DQS4  
DM4  
DM  
I/O 7  
CS DQS  
D4  
DQS  
CS  
D0  
DM  
I/O 7  
DQ32  
DQ33  
DQ34  
DQ35  
DQ36  
DQ37  
DQ38  
DQ39  
DQ0  
DQ1  
DQ2  
DQ3  
DQ4  
DQ5  
DQ6  
DQ7  
Serial PD  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
SCL  
WP  
SDA  
A0  
A1  
A2  
SA0 SA1 SA2  
DQS5  
DM5  
DQS1  
DM1  
DQS  
DM  
CS  
D5  
DQS  
CS  
D1  
DM  
DQ40  
DQ41  
DQ42  
DQ43  
DQ44  
DQ45  
DQ46  
DQ47  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
DQ8  
DQ9  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
DQ10  
DQ11  
DQ12  
DQ13  
DQ14  
DQ15  
VDDSPD  
SPD  
VDD/VDDQ  
D0 - D8  
D0 - D8  
VREF  
VSS  
D0 - D8  
D0 - D8  
DQS6  
DM6  
DQS2  
DM2  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D6  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D2  
DQ48  
DQ49  
DQ50  
DQ51  
DQ52  
DQ53  
DQ54  
DQ55  
DQ16  
DQ17  
DQ18  
DQ19  
DQ20  
DQ21  
DQ22  
DQ23  
D3/D0/D6  
Cap/Cap/Cap  
D4/D1/D7  
DQS7  
DM7  
DQS3  
DM3  
R=120Ω  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D7  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D3  
CK0/1/2  
DQ56  
DQ57  
DQ58  
DQ59  
DQ60  
DQ61  
DQ62  
DQ63  
DQ24  
DQ25  
DQ26  
DQ27  
DQ28  
DQ29  
DQ30  
DQ31  
Card  
Edge  
Cap/Cap/Cap  
D5/D2/D8  
Cap/Cap/Cap  
DQS8  
DM8  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS  
D8  
DQS  
CB0  
CB1  
CB2  
CB3  
CB4  
CB5  
CB6  
CB7  
Notes :  
BA0 - BA1  
A0 - A12  
RAS  
BA0-BA1 : DDR SDRAMs D0 - D8  
A0-A12 : DDR SDRAMs D0 - D8  
RAS : DDR SDRAMs D0 - D8  
CAS : DDR SDRAMs D0 - D8  
CKE : DDR SDRAMs D0 - D8  
WE : DDR SDRAMs D0 - D8  
Clock Wiring  
1. DQ-to-I/O wiring is shown as recommended  
but may be changed.  
2. DQ/DQS/DM/CKE/CS relationships must be  
maintained as shown.  
3. DQ, DQS, DM/DQS resistors: 22 Ohms + 5%.  
4. BAx, Ax, RAS, CAS, WE resistors: 5.1 Ohms +  
5%  
Clock  
Input  
SDRAMs  
3 SDRAMs  
3 SDRAMs  
3 SDRAMs  
CK0/CK0  
CK1/CK1  
CK2/CK2  
CAS  
CKE0  
WE  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
512MB, 64M x 64 Non ECC Module (M368L6423EUM) (Populated as 2 bank of x8 DDR SDRAM Module)  
Functional Block Diagram  
CS1  
CS0  
DQS4  
DM4  
DQS0  
DM0  
DQS  
DM  
I/O 7  
CS  
D4  
DQS  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS  
DM  
I/O 7  
DQS  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS  
D0  
CS DQS  
D8  
DQ32  
DQ33  
DQ34  
DQ35  
DQ36  
DQ37  
DQ38  
DQ39  
DQ0  
DQ1  
DQ2  
DQ3  
DQ4  
DQ5  
DQ6  
DQ7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
D12  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
DQS5  
DM5  
DQS1  
DM1  
DM  
DQS  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS  
D5  
CS  
DQS  
DM  
DQS  
DQS  
CS  
CS  
D1  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
DQ40  
DQ41  
DQ42  
DQ43  
DQ44  
DQ45  
DQ46  
DQ47  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
DQ8  
DQ9  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
D13  
D9  
DQ10  
DQ11  
DQ12  
DQ13  
DQ14  
DQ15  
DQS6  
DM6  
DQS2  
DM2  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D6  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS DQS  
D14  
DM  
DQS  
CS  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D2  
DQ48  
DQ49  
DQ50  
DQ51  
DQ52  
DQ53  
DQ54  
DQ55  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
DQ16  
DQ17  
DQ18  
DQ19  
DQ20  
DQ21  
DQ22  
DQ23  
D10  
DQS7  
DM7  
DQS3  
DM3  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS DQS  
D15  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D7  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D3  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS DQS  
D11  
DQ56  
DQ57  
DQ58  
DQ59  
DQ60  
DQ61  
DQ62  
DQ63  
DQ24  
DQ25  
DQ26  
DQ27  
DQ28  
DQ29  
DQ30  
DQ31  
Serial PD  
BA0 - BA1  
A0 - A12  
RAS  
BA0-BA1 : DDR SDRAMs D0 - D15  
A0-A12 : DDR SDRAMs D0 - D15  
RAS : DDR SDRAMs D0 - D15  
CAS : DDR SDRAMs D0 - D15  
CKE : DDR SDRAMs D8 - D15  
CKE : DDR SDRAMs D0 - D7  
Clock Wiring  
SCL  
WP  
Clock  
SDA  
SDRAMs  
Input  
A0  
A1  
A2  
4 SDRAMs  
6 SDRAMs  
6 SDRAMs  
CK0/CK0  
CK1/CK1  
CK2/CK2  
CAS  
SA0 SA1 SA2  
CKE1  
CKE0  
*Clock Net Wiring  
D3/D0/D5  
WE  
WE : DDR SDRAMs D0 - D15  
D4/D1/D6  
Notes :  
VDDSPD  
SPD  
1. DQ-to-I/O wiring is shown as recommended  
but may be changed.  
2. DQ/DQS/DM/CKE/CS relationships must be  
maintained as shown.  
3. DQ, DQS, DM/DQS resistors: 22 Ohms + 5%.  
4. BAx, Ax, RAS, CAS, WE resistors: 3.0 Ohms +  
5%  
R=120  
*
Cap/D2/D7  
VDD/VDDQ  
D0 - D15  
D0 - D15  
CK0/1/2  
Card  
Edge  
*
Cap/D8/D13  
VREF  
VSS  
D0 - D15  
D0 - D15  
D11/D9/D14  
*If four DRAMs are loaded,  
Cap will replace DRAM  
D12/D10/D15  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
512MB, 64M x 72 ECC Module (M381L6423EUM) (Populated as 2 bank of x8 DDR SDRAM Module)  
Functional Block Diagram  
CS1  
CS0  
DQS4  
DM4  
DQS0  
DM0  
DQS  
DM  
I/O 7  
DQS  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS  
D4  
CS  
DM  
I/O 7  
DQS  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS  
D0  
CS DQS  
D9  
DQ32  
DQ33  
DQ34  
DQ35  
DQ36  
DQ37  
DQ38  
DQ39  
DQ0  
DQ1  
DQ2  
DQ3  
DQ4  
DQ5  
DQ6  
DQ7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
D13  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
DQS5  
DM5  
DQS1  
DM1  
DM  
DQS  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS  
D5  
CS DQS  
D14  
DM  
DQS  
DQS  
CS  
CS  
D1  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
DQ40  
DQ41  
DQ42  
DQ43  
DQ44  
DQ45  
DQ46  
DQ47  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
DQ8  
DQ9  
DQ10  
DQ11  
DQ12  
DQ13  
DQ14  
DQ15  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
D10  
DQS6  
DM6  
DQS2  
DM2  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D6  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS DQS  
D15  
DM  
DQS  
CS  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D2  
DQ48  
DQ49  
DQ50  
DQ51  
DQ52  
DQ53  
DQ54  
DQ55  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
DQ16  
DQ17  
DQ18  
DQ19  
DQ20  
DQ21  
DQ22  
DQ23  
D11  
DQS7  
DM7  
DQS3  
DM3  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D7  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS DQS  
D16  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS DQS  
D3  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS DQS  
D12  
DQ56  
DQ57  
DQ58  
DQ59  
DQ60  
DQ61  
DQ62  
DQ63  
DQ24  
DQ25  
DQ26  
DQ27  
DQ28  
DQ29  
DQ30  
DQ31  
DQS8  
DM8  
DM  
I/O 7  
I/O 6  
I/O 1  
I/O 0  
I/O 5  
I/O 4  
I/O 3  
I/O 2  
CS  
D8  
DM  
I/O 0  
I/O 1  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
CS DQS  
D17  
DQS  
Serial PD  
CB0  
CB1  
CB2  
CB3  
CB4  
CB5  
CB6  
CB7  
SCL  
WP  
SDA  
A0  
A1  
A2  
SA0 SA1 SA2  
D3/D0/D5  
BA0 - BA1  
BA0-BA1 : DDR SDRAMs D0 - D17  
A0-A12 : DDR SDRAMs D0 - D17  
RAS : DDR SDRAMs D0 - D17  
CAS : DDR SDRAMs D0 - D17  
CKE : DDR SDRAMs D9 - D17  
CKE : DDR SDRAMs D0 - D8  
* Clock Wiring  
A0 - A12  
RAS  
D4/D1/D6  
D8/D2/D7  
Clock  
Input  
SDRAMs  
R=120  
6 SDRAMs  
6 SDRAMs  
6 SDRAMs  
CK0/CK0  
CK1/CK1  
CK2/CK2  
CAS  
CK0/1/2  
Card  
Edge  
D17/D9/D14  
CKE1  
CKE0  
D12/D10/D15  
WE  
WE : DDR SDRAMs D0 - D17  
*D8, D17 is assigned for ECC Comp.  
D13/D11/D16  
VDDSPD  
Notes :  
SPD  
1. DQ-to-I/O wiring is shown as recommended  
but may be changed.  
2. DQ/DQS/DM/CKE/CS relationships must be  
maintained as shown.  
3. DQ, DQS, DM/DQS resistors: 22 Ohms + 5%.  
4. BAx, Ax, RAS, CAS, WE resistors: 3.0 Ohms +  
5%  
VDD/VDDQ  
D0 - D17  
D0 - D17  
VREF  
VSS  
D0 - D17  
D0 - D17  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
Absolute Maximum Ratings  
Parameter  
Symbol  
Value  
Unit  
Voltage on any pin relative to VSS  
VIN, VOUT  
-0.5 ~ 3.6  
V
Voltage on VDD & VDDQ supply relative to VSS  
Storage temperature  
VDD, VDDQ  
TSTG  
PD  
-1.0 ~ 3.6  
-55 ~ +150  
V
°C  
W
Power dissipation  
1.5 * # of component  
50  
Short circuit current  
IOS  
mA  
Note : Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded.  
Functional operation should be restricted to recommend operation condition.  
Exposure to higher than recommended voltage for extended periods of time could affect device reliability.  
DC Operating Conditions  
Recommended operating conditions(Voltage referenced to VSS=0V, TA=0 to 70°C)  
Parameter  
Symbol  
Min  
Max  
2.7  
Unit  
V
Note  
Supply voltage(for device with a nominal VDD of 2.5V)  
VDD  
2.5  
5
5
1
2
I/O Supply voltage  
VDDQ  
VREF  
VTT  
2.5  
2.7  
V
I/O Reference voltage  
I/O Termination voltage(system)  
0.49*VDDQ  
VREF-0.04  
0.51*VDDQ  
VREF+0.04  
V
V
Input logic high voltage  
VIH(DC)  
VIL(DC)  
VIN(DC)  
VID(DC)  
VI(Ratio)  
II  
VREF+0.15  
-0.3  
VDDQ+0.3  
VREF-0.15  
VDDQ+0.3  
VDDQ+0.6  
1.4  
V
Input logic low voltage  
V
Input Voltage Level, CK and CK inputs  
Input Differential Voltage, CK and CK inputs  
V-I Matching: Pullup to Pulldown Current Ratio  
Input leakage current  
-0.3  
V
0.36  
0.71  
-2  
V
3
4
-
2
uA  
uA  
mA  
Output leakage current  
IOZ  
-5  
5
Output High Current(Normal strengh driver) ;VOUT = VTT + 0.84V  
IOH  
-16.8  
Output High Current(Normal strengh driver) ;VOUT = VTT - 0.84V  
Output High Current(Half strengh driver) ;VOUT = VTT + 0.45V  
Output High Current(Half strengh driver) ;VOUT = VTT - 0.45V  
IOL  
IOH  
IOL  
16.8  
-9  
mA  
mA  
mA  
9
Note :  
1.VREF is expected to be equal to 0.5*VDDQ of the transmitting device, and to track variations in the dc level of same.  
Peak-to peak noise on VREF may not exceed +/-2% of the dc value.  
2. VTT is not applied directly to the device. VTT is a system supply for signal termination resistors, is expected to be set equal to  
VREF, and must track variations in the DC level of VREF  
3. VID is the magnitude of the difference between the input level on CK and the input level on CK.  
4. The ratio of the pullup current to the pulldown current is specified for the same temperature and voltage, over the entire  
temperature and voltage range, for device drain to source voltages from 0.25V to 1.0V. For a given output, it represents the  
maximum difference between pullup and pulldown drivers due to process variation. The full variation in the ratio of the  
maximum to minimum pullup and pulldown current will not exceed 1/7 for device drain to source voltages from 0.1 to 1.0.  
5. This is the DC voltage supplied at the DRAM and is inclusive of all noise up to 20MHz. Any noise above 20MHz at the DRAM  
generated from any source other than the DRAM itself may not exceed the DC voltage range of 2.6V +/-100mV.  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
DDR SDRAM IDD spec table  
(VDD=2.7V, T = 10°C)  
M368L3223EUM  
Symbol  
M381L3223EUM  
Unit  
Notes  
CC(DDR400@CL=3) C4(DDR400@CL=3) CC(DDR400@CL=3) C4(DDR400@CL=3)  
IDD0  
IDD1  
840  
1040  
35  
800  
1040  
35  
950  
1170  
40  
900  
1170  
40  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
IDD2P  
IDD2F  
IDD2Q  
IDD3P  
IDD3N  
IDD4R  
IDD4W  
IDD5  
240  
200  
440  
600  
1480  
1520  
1440  
24  
240  
200  
440  
600  
1480  
1520  
1440  
24  
270  
230  
500  
680  
1670  
1710  
1620  
27  
270  
230  
500  
680  
1670  
1710  
1620  
27  
IDD6  
Normal  
Low power  
IDD7A  
12  
12  
14  
14  
Optional  
2480  
2320  
2790  
2610  
* Module IDD was calculated on the basis of component IDD and can be differently measured according to DQ loading cap.  
(VDD=2.7V, T = 10°C)  
M368L6423EUM  
M381L6423EUM  
Symbol  
Unit  
Notes  
CC(DDR400@CL=3) C4(DDR400@CL=3) CC(DDR400@CL=3) C4(DDR400@CL=3)  
IDD0  
IDD1  
1440  
1640  
65  
1400  
1640  
65  
1620  
1850  
75  
1580  
1850  
75  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
IDD2P  
IDD2F  
IDD2Q  
IDD3P  
IDD3N  
IDD4R  
IDD4W  
IDD5  
480  
480  
540  
450  
990  
1350  
2340  
2390  
2300  
54  
540  
400  
400  
450  
880  
880  
990  
1200  
2080  
2120  
2040  
48  
1200  
2080  
2120  
2040  
48  
1350  
2340  
2390  
2300  
54  
IDD6  
Normal  
Low power  
IDD7A  
24  
24  
27  
27  
Optional  
3080  
2920  
3470  
3290  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
AC Operating Conditions  
Max  
Parameter/Condition  
Symbol  
VIH(AC)  
VIL(AC)  
VID(AC)  
VIX(AC)  
Min  
Unit  
V
Note  
Input High (Logic 1) Voltage, DQ, DQS and DM signals  
Input Low (Logic 0) Voltage, DQ, DQS and DM signals.  
Input Differential Voltage, CK and CK inputs  
VREF + 0.31  
VREF - 0.31  
VDDQ+0.6  
V
0.7  
V
1
2
Input Crossing Point Voltage, CK and CK inputs  
0.5*VDDQ-0.2 0.5*VDDQ+0.2  
V
Note : 1. VID is the magnitude of the difference between the input level on CK and the input on CK.  
2. The value of VIX is expected to equal 0.5*VDDQ of the transmitting device and must track variations in the DC level of the same.  
3. These parameters should be tested at the pim on actual components and may be checked at either the pin or the pad in  
simulation. the AC and DC input specificatims are refation to a Vref envelope that has been bandwidth limited 20MHz.  
Vtt=0.5*VDDQ  
RT=50Ω  
Output  
Z0=50Ω  
VREF  
=0.5*VDDQ  
CLOAD=30pF  
Output Load Circuit (SSTL_2)  
Input/Output Capacitance  
(VDD=2.6V, VDDQ=2.6V, TA= 25°C, f=1MHz)  
M368L3223EUM  
M381L3223EUM  
Parameter  
Symbol  
Unit  
Min  
49  
42  
42  
25  
6
Max  
57  
50  
50  
30  
7
Min  
51  
44  
44  
25  
6
Max  
60  
53  
53  
30  
7
Input capacitance(A0 ~ A12, BA0 ~ BA1,RAS,CAS,WE )  
Input capacitance(CKE0)  
CIN1  
CIN2  
CIN3  
CIN4  
CIN5  
Cout1  
Cout2  
pF  
pF  
pF  
pF  
pF  
pF  
pF  
Input capacitance( CS0)  
Input capacitance( CLK0, CLK1,CLK2)  
Input capacitance(DM0~DM7, DM8(for ECC))  
Data & DQS input/output capacitance(DQ0~DQ63)  
Data input/output capacitance (CB0~CB7)  
6
7
6
7
-
-
6
7
M368L6423EUM  
M381L6423EUM  
Parameter  
Symbol  
Unit  
Min  
65  
42  
42  
28  
10  
10  
-
Max  
81  
50  
50  
34  
12  
12  
-
Min  
69  
44  
44  
28  
10  
10  
10  
Max  
87  
53  
53  
34  
12  
12  
12  
Input capacitance(A0 ~ A12, BA0 ~ BA1,RAS,CAS,WE )  
Input capacitance(CKE0,CKE1)  
CIN1  
CIN2  
CIN3  
CIN4  
CIN5  
Cout1  
Cout2  
pF  
pF  
pF  
pF  
pF  
pF  
pF  
Input capacitance( CS0, CS1)  
Input capacitance( CLK0, CLK1,CLK2)  
Input capacitance(DM0~DM7, DM8(for ECC))  
Data & DQS input/output capacitance(DQ0~DQ63)  
Data input/output capacitance (CB0~CB7)  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
AC Timing Parameters and Specifications  
CC(DDR400@CL=3)  
C4(DDR400@CL=3)  
Parameter  
Symbol  
Unit  
Note  
Min  
55  
Max  
Min  
60  
Max  
Row cycle time  
tRC  
tRFC  
tRAS  
tRCD  
tRP  
ns  
ns  
Refresh row cycle time  
Row active time  
70  
70  
40  
70K  
40  
70K  
ns  
RAS to CAS delay  
15  
18  
ns  
Row precharge time  
15  
18  
ns  
Row active to Row active delay  
Write recovery time  
tRRD  
tWR  
10  
10  
ns  
15  
15  
ns  
Internal write to read command delay  
tWTR  
2
2
tCK  
ns  
CL=3.0  
CL=2.5  
5
10  
12  
5
10  
12  
Clock cycle time  
tCK  
16  
13  
6
6
ns  
Clock high level width  
Clock low level width  
tCH  
tCL  
0.45  
0.45  
-0.55  
-0.65  
-
0.55  
0.55  
+0.55  
+0.65  
0.4  
0.45  
0.45  
-0.55  
-0.65  
-
0.55  
0.55  
+0.55  
+0.65  
0.4  
tCK  
tCK  
ns  
DQS-out access time from CK/CK  
Output data access time from CK/CK  
Data strobe edge to ouput data edge  
Read Preamble  
tDQSCK  
tAC  
ns  
tDQSQ  
tRPRE  
tRPST  
tDQSS  
tWPRES  
tWPRE  
tWPST  
tDSS  
ns  
0.9  
0.4  
0.72  
0
1.1  
0.9  
0.4  
0.72  
0
1.1  
tCK  
tCK  
tCK  
ps  
Read Postamble  
0.6  
0.6  
CK to valid DQS-in  
1.28  
1.28  
Write preamble setup time  
Write preamble  
5
4
0.25  
0.4  
0.2  
0.2  
0.35  
0.25  
0.4  
0.2  
0.2  
0.35  
tCK  
tCK  
tCK  
tCK  
tCK  
tCK  
ns  
Write postamble  
0.6  
0.6  
DQS falling edge to CK rising-setup time  
DQS falling edge from CK rising-hold time  
DQS-in high level width  
tDSH  
tDQSH  
DQS-in low level width  
tDQSL  
tIS  
0.35  
0.6  
0.35  
0.6  
Address and Control Input setup time  
Address and Control Input hold time  
h,7~10  
h,7~10  
tIH  
0.6  
0.6  
ns  
Data-out high impedence time from CK/CK  
Data-out low impedence time from CK/CK  
Mode register set cycle time  
tHZ  
tLZ  
-
tAC max  
tAC max  
-
tAC max  
tAC max  
ns  
3
3
tAC min  
2
tAC min  
2
ns  
tMRD  
tDS  
tCK  
ns  
DQ & DM setup time to DQS, slew rate 0.5V/ns  
DQ & DM hold time to DQS, slew rate 0.5V/ns  
DQ & DM input pulse width  
0.4  
0.4  
i, j  
i, j  
9
tDH  
0.4  
0.4  
ns  
tDIPW  
tIPW  
1.75  
2.2  
1.75  
2.2  
ns  
Control & Address input pulse width for each input  
ns  
9
Up to 128Mb  
Refresh interval time  
15.6  
7.8  
15.6  
7.8  
us  
tREFI  
6
256Mb, 512Mb, 1Gb  
us  
tHP  
-tQHS  
tHP  
-tQHS  
Output DQS valid window  
Clock half period  
tQH  
tHP  
-
-
-
-
ns  
ns  
12  
min  
tCH/tCL  
min  
tCH/tCL  
11, 12  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
CC(DDR400@CL=3)  
C4(DDR400@CL=3)  
Parameter  
Data hold skew factor  
Symbol  
Unit  
Note  
Min  
Max  
0.5  
-
Min  
Max  
0.5  
-
tQHS  
tDAL  
ns  
ns  
12  
14  
15  
Auto Precharge write recovery + precharge time  
Exit self refresh to non-READ command  
Exit self refresh to READ command  
-
-
tXSNR  
tXSRD  
75  
75  
ns  
200  
-
200  
-
tCK  
Component Notes  
1.VID is the magnitude of the difference between the input level on CK and the input level on CK.  
2. The value of VIX is expected to equal 0.5*VDDQ of the transmitting device and must track variations in the dc level of the same.  
3. tHZ and tLZ transitions occur in the same access time windows as valid data transitions. these parameters are not referenced to a  
specific voltage level but specify when the device output in no longer driving (HZ), or begins driving (LZ).  
4. The maximum limit for this parameter is not a device limit. The device will operate with a greater value for this parameter, but sys  
tem performance (bus turnaround) will degrade accordingly.  
5. The specific requirement is that DQS be valid (HIGH, LOW, or at some point on a valid transition) on or before this CK edge. A  
valid transition is defined as monotonic and meeting the input slew rate specifications of the device. when no writes were previ  
ously in progress on the bus, DQS will be tran sitioning from High- Z to logic LOW. If a previous write was in progress, DQS could  
be HIGH, LOW, or transitioning from HIGH to LOW at this time, depending on tDQSS.  
6. A maximum of eight AUTO REFRESH commands can be posted to any given DDR SDRAM device.  
7. For command/address input slew rate 0.5 V/ns  
8. For CK & CK slew rate 0.5 V/ns  
9. These parameters guarantee device timing, but they are not necessarily tested on each device. They may be guaranteed by  
device design or tester correlation.  
10. Slew Rate is measured between VOH(ac) and VOL(ac).  
11. Min (tCL, tCH) refers to the smaller of the actual clock low time and the actual clock high time as provided to the device (i.e. this  
value can be greater than the minimum specification limits for tCL and tCH).....For example, tCL and tCH are = 50% of the  
period, less the half period jitter (tJIT(HP)) of the clock source, and less the half period jitter due to crosstalk (tJIT(crosstalk)) into  
the clock traces.  
12. tQH = tHP - tQHS, where:  
tHP = minimum half clock period for any given cycle and is defined by clock high or clock low (tCH, tCL). tQHS accounts for 1) The  
pulse duration distortion of on-chip clock circuits; and 2) The worst case push-out of DQS on one tansition followed by the worst  
case pull-in of DQ on the next transition, both of which are, separately, due to data pin skew and output pattern effects, and p-  
channel to n-channel variation of the output drivers.  
13. tDQSQ  
Consists of data pin skew and output pattern effects, and p-channel to n-channel variation of the output drivers for any given  
cycle.  
14. tDAL = (tWR/tCK) + (tRP/tCK)  
For each of the terms above, if not already an integer, round to the next highest integer. Example: For DDR400(CC) at CL=3 and  
tCK=5ns tDAL = (15 ns / 5 ns) + (15 ns/ 5ns) = (3) + (3)  
tDAL = 6 clocks  
15. In all circumstances, tXSNR can be satisfied using tXSNR=tRFCmin+1*tCK  
16. The only time that the clock frequency is allowed to change is during self-refresh mode.  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
System Characteristics for DDR SDRAM  
The following specification parameters are required in systems using DDR400 devices to ensure proper system perfor-  
mance. these characteristics are for system simulation purposes and are guaranteed by design.  
Table 1 : Input Slew Rate for DQ, DQS, and DM  
AC CHARACTERISTICS  
DDR400  
PARAMETER  
SYMBOL  
DCSLEW  
MIN  
0.5  
MAX  
4.0  
Units  
V/ns  
Notes  
a, k  
DQ/DM/DQS input slew rate measured between  
VIH(DC), VIL(DC) and VIL(DC), VIH(DC)  
Table 2 : Input Setup & Hold Time Derating for Slew Rate  
Input Slew Rate  
0.5 V/ns  
tIS  
0
tIH  
0
Units  
ps  
Notes  
h
h
h
0.4 V/ns  
+50  
+100  
0
ps  
0.3 V/ns  
0
ps  
Table 3 : Input/Output Setup & Hold Time Derating for Slew Rate  
Input Slew Rate  
0.5 V/ns  
tDS  
0
tDH  
0
Units  
ps  
Notes  
j
j
j
0.4 V/ns  
+75  
+150  
+75  
+150  
ps  
0.3 V/ns  
ps  
Table 4 : Input/Output Setup & Hold Derating for Rise/Fall Delta Slew Rate  
Delta Slew Rate  
+/- 0.0 V/ns  
tDS  
0
tDH  
0
Units  
ps  
Notes  
i
i
i
+/- 0.25 V/ns  
+/- 0.5 V/ns  
+50  
+100  
+50  
+100  
ps  
ps  
Table 5 : Output Slew Rate Characteristice (X8 Devices only)  
Typical Range  
(V/ns)  
Minimum  
(V/ns)  
Maximum  
(V/ns)  
Slew Rate Characteristic  
Notes  
Pullup Slew Rate  
Pulldown slew  
1.2 ~ 2.5  
1.2 ~ 2.5  
1.0  
1.0  
4.5  
4.5  
a,c,d,f,g  
b,c,d,f,g  
Table 6 : Output Slew Rate Characteristice (X16 Devices only)  
Typical Range  
(V/ns)  
Minimum  
(V/ns)  
Maximum  
(V/ns)  
Slew Rate Characteristic  
Notes  
Pullup Slew Rate  
Pulldown slew  
1.2 ~ 2.5  
1.2 ~ 2.5  
0.7  
0.7  
5.0  
5.0  
a,c,d,f,g  
b,c,d,f,g  
Table 7 : Output Slew Rate Matching Ratio Characteristics  
AC CHARACTERISTICS DDR400  
PARAMETER  
Output Slew Rate Matching Ratio (Pullup to Pulldown)  
MIN  
-
MAX  
-
Notes  
e,k  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
System Notes :  
a. Pullup slew rate is characteristized under the test conditions as shown in Figure 1.  
Test point  
Output  
50Ω  
VSSQ  
Figure 1 : Pullup slew rate test load  
b. Pulldown slew rate is measured under the test conditions shown in Figure 2.  
VDDQ  
50Ω  
Output  
Test point  
Figure 2 : Pulldown slew rate test load  
c. Pullup slew rate is measured between (VDDQ/2 - 320 mV +/- 250 mV)  
Pulldown slew rate is measured between (VDDQ/2 + 320 mV +/- 250 mV)  
Pullup and Pulldown slew rate conditions are to be met for any pattern of data, including all outputs switching and only one output  
switching.  
Example : For typical slew rate, DQ0 is switching  
For minmum slew rate, all DQ bits are switching from either high to low, or low to high.  
For Maximum slew rate, only one DQ is switching from either high to low, or low to high.  
The remaining DQ bits remain the same as for previous state.  
d. Evaluation conditions  
Typical : 25 °C (T Ambient), VDDQ = 2.6V, typical process  
Minimum : 70 °C (T Ambient), VDDQ = 2.5V, slow - slow process  
Maximum : 0 °C (T Ambient), VDDQ = 2.7V, fast - fast process  
e. The ratio of pullup slew rate to pulldown slew rate is specified for the same temperature and voltage, over the entire temperature and  
voltage range. For a given output, it represents the maximum difference between pullup and pulldown drivers due to process variation.  
f. Verified under typical conditions for qualification purposes.  
g. TSOPII package divices only.  
h. A derating factor will be used to increase tIS and tIH in the case where the input slew rate is below 0.5V/ns  
as shown in Table 2. The Input slew rate is based on the lesser of the slew rates detemined by either VIH(AC) to VIL(AC) or  
VIH(DC) to VIL(DC), similarly for rising transitions.  
i. A derating factor will be used to increase tDS and tDH in the case where DQ, DM, and DQS slew rates differ, as shown in Tables 3 & 4.  
Input slew rate is based on the larger of AC-AC delta rise, fall rate and DC-DC delta rise, Input slew rate is based on the lesser of the  
slew rates determined by either VIH(AC) to VIL(AC) or VIH(DC) to VIL(DC), similarly for rising transitions.  
The delta rise/fall rate is calculated as:  
{1/(Slew Rate1)} - {1/(Slew Rate2)}  
For example : If Slew Rate 1 is 0.5 V/ns and slew Rate 2 is 0.4 V/ns, then the delta rise, fall rate is - 0.5ns/V . Using the table given, this  
would result in the need for an increase in tDS and tDH of 100 ps.  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
j. Table 3 is used to increase tDS and tDH in the case where the I/O slew rate is below 0.5 V/ns. The I/O slew rate is based on the lesser  
on the lesser of the AC - AC slew rate and the DC- DC slew rate. The inut slew rate is based on the lesser of the slew rates deter  
mined by either VIH(ac) to VIL(ac) or VIH(DC) to VIL(DC), and similarly for rising transitions.  
k. DQS, DM, and DQ input slew rate is specified to prevent double clocking of data and preserve setup and hold times. Signal transi  
tions through the DC region must be monotony.  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
Command Truth Table  
(V=Valid, X=Dont Care, H=Logic High, L=Logic Low)  
A0 ~ A9  
Note  
COMMAND  
CKEn-1 CKEn CS RAS CAS WE BA0,1 A10/AP  
A11, A12  
Register  
Register  
Extended MRS  
H
H
X
X
H
L
L
L
L
L
L
L
L
L
OP CODE  
OP CODE  
1, 2  
1, 2  
3
Mode Register Set  
Auto Refresh  
H
L
L
L
H
X
X
Entry  
3
Refresh  
Self  
Refresh  
L
H
L
H
X
L
H
X
H
H
X
H
3
Exit  
L
H
X
3
Bank Active & Row Addr.  
H
V
Row Address  
(A0~A9, A11, A12)  
Read &  
Column Address  
Auto Precharge Disable  
Auto Precharge Enable  
Auto Precharge Disable  
Auto Precharge Enable  
L
4
4
Column  
Address  
H
X
L
H
L
H
V
V
H
Write &  
Column Address  
L
4
Column  
Address  
H
H
H
X
X
X
L
L
L
H
H
L
L
H
H
L
L
L
H
4, 6  
7
Burst Stop  
Precharge  
X
Bank Selection  
All Banks  
V
X
L
X
H
5
H
L
X
V
X
X
H
X
V
X
X
H
X
V
X
X
H
X
V
X
V
X
X
H
X
V
Entry  
Exit  
H
L
L
H
L
Active Power Down  
X
X
H
L
Entry  
H
Precharge Power Down Mode  
X
H
L
Exit  
L
H
H
H
X
DM  
X
X
8
9
9
H
L
X
H
X
H
No operation (NOP) : Not defined  
Note : 1. OP Code : Operand Code. A0 ~ A12 & BA0 ~ BA1 : Program keys. (@EMRS/MRS)  
2. EMRS/ MRS can be issued only at all banks precharge state.  
A new command can be issued 2 clock cycles after EMRS or MRS.  
3. Auto refresh functions are same as the CBR refresh of DRAM.  
The automatical precharge without row precharge command is meant by "Auto".  
Auto/self refresh can be issued only at all banks precharge state.  
4. BA0 ~ BA1 : Bank select addresses.  
If both BA0 and BA1 are "Low" at read, write, row active and precharge, bank A is selected.  
If BA0 is "High" and BA1 is "Low" at read, write, row active and precharge, bank B is selected.  
If BA0 is "Low" and BA1 is "High" at read, write, row active and precharge, bank C is selected.  
If both BA0 and BA1 are "High" at read, write, row active and precharge, bank D is selected.  
5. If A10/AP is "High" at row precharge, BA0 and BA1 are ignored and all banks are selected.  
6. During burst write with auto precharge, new read/write command can not be issued.  
Another bank read/write command can be issued after the end of burst.  
New row active of the associated bank can be issued at tRP after the end of burst.  
7. Burst stop command is valid at every burst length.  
8. DM sampled at the rising and falling edges of the DQS and Data-in are masked at the both edges (Write DM latency is 0).  
9. This combination is not defined for any function, which means "No Operation(NOP)" in DDR SDRAM.  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
Physical Dimensions : 32M x 64 (M368L3223EUM), 32M x 72 (M381L3223EUM)  
PACKAGE DIMENSIONS  
Units : Inches (Millimeters)  
5.25 ± 0.006  
(133.350 ± 0.15)  
0.118  
(3.00)  
5.077  
(128.950)  
1.25 ± 0.006  
±0.15)  
(31.75  
N/A  
(for x64)  
ECC  
(for x72)  
A
B
N/A  
(for x64)  
2.500  
0.10 M  
C
B
A
ECC  
(for x72)  
1.95  
(49.53)  
2.55  
(64.77)  
0.07 Max  
(1.20 Max)  
0.050 ± 0.0039  
(1.270 ± 0.10)  
0.118  
(3.00)  
0.250  
(6.350)  
0.157  
(4.00)  
0.039 ± 0.002  
(1.000 ± 0.050)  
0.26  
(6.62)  
0.0787  
R (2.00)  
0.1496  
(3.80)  
0.0078 ±0.006  
(0.20 ±0.15)  
2.175  
0.071  
(1.80)  
0.050  
(1.270)  
0.1575  
(4.00)  
0.10  
Detail A  
M
C
A
B
M
Detail B  
Tolerances : ± 0.005(.13) unless otherwise specified.  
The used device is 32Mx8 DDR SDRAM, TSOPII.  
DDR SDRAM Part NO : K4H560838E.  
Revision 1.0 Oct. 2004  
256MB, 512MB Unbuffered DIMM  
DDR SDRAM  
Physical Dimensions : 64M x 64 (M368L6423EUM), 64M x 72 (M381L6423EUM)  
PACKAGE DIMENSIONS  
Units : Inches (Millimeters)  
5.25 ± 0.006  
(133.350 ± 0.15)  
0.118  
(3.00)  
5.077  
(128.950)  
1.25 ± 0.006  
±0.15)  
(31.75  
N/A  
(for x64)  
ECC  
(for x72)  
A
B
2.500  
0.10 M  
C
B
A
0.145 Max  
(3.67 Max)  
1.95  
(49.53)  
2.55  
(64.77)  
N/A  
(for x64)  
ECC  
(for x72)  
0.050 ± 0.0039  
(1.270 ± 0.10)  
0.118  
(3.00)  
0.250  
(6.350)  
0.157  
(4.00)  
0.039 ± 0.002  
(1.000 ± 0.050)  
0.26  
(6.62)  
0.0787  
R (2.00)  
0.1496  
(3.80)  
0.0078 ±0.006  
(0.20 ±0.15)  
2.175  
0.071  
(1.80)  
0.050  
(1.270)  
0.1575  
(4.00)  
0.10  
Detail A  
M
C
A
B
M
Detail B  
Tolerances : ± 0.005(.13) unless otherwise specified.  
The used device is 32Mx8 DDR SDRAM, TSOPII.  
DDR SDRAM Part NO : K4H560838E  
Revision 1.0 Oct. 2004  

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