M470L1624FT0-LC4 [SAMSUNG]
DDR DRAM Module, 16MX64, 0.65ns, CMOS, SODIMM-200;型号: | M470L1624FT0-LC4 |
厂家: | SAMSUNG |
描述: | DDR DRAM Module, 16MX64, 0.65ns, CMOS, SODIMM-200 时钟 动态存储器 双倍数据速率 内存集成电路 |
文件: | 总16页 (文件大小:329K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
DDR SDRAM SODIMM
(DDR400 Module)
200pin Unbuffered SODIMM based on 256Mb F-die
64bit (Non ECC)
Revision 1.2
March. 2004
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
Revision History
Revision 0.0 (June, 2003)
- First release
Revision 1.0 (June, 2003)
- Finalized
Revision 1.1 (August, 2003)
- Corrected typo.
Revision 1.2 (March, 2004)
- Corrected package dimension.
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
200Pin Non ECC / ECC SODIMM based on 256Mb F-die
Ordering Information
Part Number
M470L1624FT0-C(L)CC/C4
M470L3224FT0-C(L)CC/C4
Density
128MB
256MB
Organization
16M x 64
32M x 64
Component Composition
16Mx16 (K4H561638F) * 4EA
16Mx16 (K4H561638F) * 8EA
Height
1,250mil
1,250mil
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 1,250mil, single(128MB), double(256MB) sided
SAMSUNG ELECTRONICS CO., Ltd. reserves the right to change products and specifications without notice.
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
Pin Configurations (Front side/back side)
Pin
Front
Pin
Front
Pin
Front
Pin
Back
Pin
Back
Pin
Back
1
VREF
67
DQ27
VDD
*CB0
*CB1
VSS
*DQS8
*CB2
VDD
*CB3
DU
135
137
139
141
143
145
147
149
151
153
155
157
159
161
163
165
167
169
171
173
175
177
179
181
183
185
187
189
191
193
195
197
199
DQ34
2
VREF
68
DQ31
VDD
*CB4
*CB5
VSS
*DM8
*CB6
VDD
*CB7
136
138
140
142
144
146
148
150
152
DQ38
3
VSS
69
VSS
4
VSS
70
VSS
5
DQ0
DQ1
VDD
DQS0
DQ2
VSS
DQ3
DQ8
VDD
DQ9
DQS1
VSS
DQ10
DQ11
VDD
CK0
/CK0
VSS
71
DQ35
DQ40
VDD
6
8
DQ4
DQ5
VDD
DM0
DQ6
VSS
DQ7
DQ12
VDD
DQ13
DM1
VSS
72
DQ39
DQ44
VDD
DQ45
DM5
VSS
7
73
74
9
75
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
76
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
77
DQ41
DQS5
VSS
78
79
80
81
82
83
DQ42
DQ43
VDD
84
DQ46
DQ47
VDD
/CK1
CK1
85
86
*DU/(RESET) 154
87
VSS
CK2
88
VSS
VSS
VDD
VDD
CKE0
DU(BA2)
A11
156
158
160
162
164
166
168
170
172
174
176
178
180
182
184
186
188
190
192
194
196
198
200
89
VDD
90
91
/CK2
VDD
CKE1
DU
VSS
92
93
VSS
94
VSS
95
DQ48
DQ49
VDD
DQ14
DQ15
VDD
VDD
VSS
96
DQ52
DQ53
VDD
DM6
DQ54
VSS
97
98
99
A12
100
102
104
106
108
110
112
114
116
118
120
122
124
126
128
130
132
134
101
103
105
107
109
111
113
115
117
119
121
123
125
127
129
131
133
A9
DQS6
DQ50
VSS
A8
VSS
A7
VSS
A6
VSS
A5
DQ51
DQ56
VDD
KEY
A4
DQ55
DQ60
VDD
DQ61
DM7
VSS
KEY
41
43
45
47
49
51
53
55
57
59
61
63
65
DQ16
DQ17
VDD
A3
42
44
46
48
50
52
54
56
58
60
62
64
66
DQ20
DQ21
VDD
A2
A1
A0
VDD
A10/AP
BA0
DQ57
DQS7
VSS
VDD
BA1
/RAS
/CAS
/CS1
DU
DQS2
DQ18
VSS
DM2
DQ22
VSS
/WE
DQ58
DQ59
VDD
DQ62
DQ63
VDD
SA0
DQ19
DQ24
VDD
/CS0
*DU(A13)
VSS
DQ32
DQ33
VDD
DQS4
DQ23
DQ28
VDD
SDA
SCL
VSS
DQ36
DQ37
VDD
DM4
DQ25
DQS3
VSS
DQ29
DM3
SA1
VDDSPD
VDDID
SA2
VSS
DU
DQ26
DQ30
Note 1. * : These pins are not used in this module.
2. Pin 95,122 are NC for 1Row module (M470L1624FT0) & used for 2Row module (M470L3224FT0).
Pin Description
Pin Name
Function
Address input (Multiplexed)
Bank Select Address
Data input/output
Data Strobe input/output
Clock input
Clock enable input
Chip select input
Row address strobe
Column address strobe
Write enable
Pin Name
DM0 ~ DM7
VDD
VDDQ
VSS
VREF
VDDSPD
SDA
Function
Data - in mask
Power supply (2.6V)
Power Supply for DQS(2.6V)
Ground
Power supply for reference
Serial EEPROM Power
Serial data I/O
A0 ~ A12
BA0 ~ BA1
DQ0 ~ DQ63
DQS0 ~ DQS7
CK0,CK0 ~ CK2, CK2
CKE0~CKE1
CS0~CS1
RAS
SCL
SA0 ~ 2
NC
Serial clock
CAS
WE
Address in EEPROM
No connection
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
128MB, 16M x 64 Non ECC Module (M470L1624FT0) (Populated as 1 bank of x16 DDR SDRAM Module)
FUNCTIONAL BLOCK DIAGRAM
CS0
DQS0
DM0
DQS4
DM4
LDQS
LDM
CS
D0
LDQS
LDM
CS
D2
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 6
DQ7
I/O 7
UDQS
UDM
I/O 8
DQ39
I/O 7
UDQS
UDM
I/O 8
DQS1
DM1
DQS5
DM5
DQ8
DQ9
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
I/O 9
I/O 9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
DQS2
DM2
DQS6
DM6
LDQS
LDM
CS
D1
LDQS
LDM
CS
D3
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 6
DQ23
I/O 7
UDQS
UDM
I/O 8
DQ55
I/O 7
UDQS
UDM
I/O 8
DQS3
DM3
DQS7
DM7
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
DQ56
DQ57
DQ58
DQ58
DQ60
DQ61
DQ62
DQ63
I/O 9
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
BA0 - BA1
BA0-BA1: DDR SDRAMs D0 - D3
A0-A12: DDR SDRAMs D0 - D3
A0 - A12
D0/D2/Cap
RAS
RAS: SDRAMs D0 - D3
Cap/Cap/Cap
CAS
CAS: SDRAMs D0 - D3
CKE: SDRAMs D0 - D3
R=152%0Ω
Clock Wiring
±
Clock
Input
CK0/CK0
CK1/CK1
CK2/CK2
CKE0
SDRAMs
CK0/1/2
CK0/1/2
2 SDRAMs
2 SDRAMs
NC
WE
WE: SDRAMs D0 - D3
Card
Edge
D1/D3/Cap
Cap/Cap/Cap
VDDSPD
SPD
VDD/VDDQ
Notes:
D0 - D3
D0 - D3
1. DQ-to-I/O wiring is shown as recom-
mended but may be changed.
Serial PD
VREF
VSS
D0 - D3
D0 - D3
2. DQ/DQS/DM/CKE/CS relationships must
be maintained as shown.
SCL
WP
SDA
3. DQ, DQS, DM/DQS resistors: 22 Ohms.
A0
A1
A2
SA0 SA1 SA2
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
256MB, 32M x 64 Non ECC Module (M470L3224FT0) (Populated as 2 bank of x16 DDR SDRAM Module)
Functional Block Diagram
CS1
CS0
DQS0
DM0
LDQS
LDM
I/0 0
I/0 1
I/0 2
I/0 3
I/0 4
I/0 5
I/0 6
LDQS
LDM
I/0 0
I/0 1
I/0 2
I/0 3
I/0 4
I/0 5
I/0 6
DQS4
DM4
LDQS
LDM
I/0 0
I/0 1
I/0 2
I/0 3
I/0 4
I/0 5
I/0 6
LDQS
LDM
I/0 0
I/0 1
I/0 2
I/0 3
I/0 4
I/0 5
I/0 6
CS
CS
CS
CS
DQ0
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
D0
D4
D2
D6
DQS1
DM1
UDQS
UDM
I/0 8
UDQS
UDM
I/0 8
DQS5
DM5
UDQS
UDM
I/0 8
UDQS
UDM
I/0 8
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
I/0 9
I/0 9
I/0 9
I/0 9
I/0 10
I/0 11
I/0 12
I/0 13
I/0 14
I/0 10
I/0 11
I/0 12
I/0 13
I/0 14
I/0 10
I/0 11
I/0 12
I/0 13
I/0 14
I/0 10
I/0 11
I/0 12
I/0 13
I/0 14
DQS2
DM2
LDQS
LDM
I/0 0
I/0 1
I/0 2
I/0 3
I/0 4
I/0 5
I/0 6
LDQS
LDM
I/0 0
I/0 1
I/0 2
I/0 3
I/0 4
I/0 5
I/0 6
DQS6
DM6
LDQS
LDM
I/0 0
I/0 1
I/0 2
I/0 3
I/0 4
I/0 5
I/0 6
LDQS
LDM
I/0 0
I/0 1
I/0 2
I/0 3
I/0 4
I/0 5
I/0 6
CS
CS
CS
CS
DQ0
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
D1
D5
D3
D7
DQS3
DM3
UDQS
UDM
I/0 8
UDQS
UDM
I/0 8
DQS7
DM7
UDQS
UDM
I/0 8
UDQS
UDM
I/0 8
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
I/0 9
I/0 9
I/0 9
I/0 9
I/0 10
I/0 11
I/0 12
I/0 13
I/0 14
I/0 10
I/0 11
I/0 12
I/0 13
I/0 14
I/0 10
I/0 11
I/0 12
I/0 13
I/0 14
I/0 10
I/0 11
I/0 12
I/0 13
I/0 14
*Clock Net Wiring
D0/D2/Cap
D1/D3/Cap
BA0 - BA1
A0 - A12
RAS
BA0-BA1: DDR SDRAMs D0 - D7
A0-A12: DDR SDRAMs D0 - D7
RAS: SDRAMs D0 - D7
Clock Wiring
SDRAMs
R=120Ω
Clock
CK0/1/2
CK0/1/2
Input
CAS
CAS: SDRAMs D0 - D7
Card
Edge
CK0/CK0
CK1/CK1
CK2/CK2
4 SDRAMs
4 SDRAMs
NC
CKE0
CKE1
CKE: SDRAMs D0 - D3
CKE: SDRAMs D4 - D7
D4/D6/Cap
D5/D7/Cap
WE
WE: SDRAMs D0 - D7
VDDSPD
VDD/VDDQ
SPD
Serial PD
Notes:
D0 - D7
SCL
WP
1. DQ-to-I/O wiring is shown as recom-
mended but may be changed.
SDA
2. DQ/DQS/DM/CKE/CS relationships must
be maintained as shown.
A0
A1
A2
VREF
VSS
D0 - D7
D0 - D7
SA0 SA1 SA2
3. DQ, DQS, DM/DQS resistors: 22 Ohms.
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
Absolute Maximum Ratings
Parameter
Voltage on any pin relative to Vss
Voltage on VDD supply relative to Vss
Voltage on VDDQ supply relative to Vss
Storage temperature
Symbol
VIN, VOUT
VDD
Value
-0.5 ~ 3.6
Unit
V
-1.0 ~ 3.6
V
VDDQ
TSTG
-1.0 ~ 3.6
V
-55 ~ +150
1.5 * # of component
50
°C
W
Power dissipation
PD
Short circuit current
IOS
mA
Note :
Permanent device damage may occur if Absolute Maximum Ratings are exceeded.
Functional operation should be restricted to recommended operating 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
VDD
Min
2.5
Max
2.7
Unit
Note
Supply voltage(for device with a nominal VDD of 2.5V)
5
5
1
2
I/O Supply voltage
VDDQ
VREF
VTT
2.5
0.49*VDDQ
VREF-0.04
2.7
0.51*VDDQ
VREF+0.04
V
V
I/O Reference voltage
I/O Termination voltage(system)
V
Input logic high voltage
Input logic low voltage
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
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
V
V
V
-0.3
0.36
0.71
-2
3
4
-
2
5
uA
uA
mA
Output leakage current
Output High Current(Normal strengh driver) ;VOUT = VTT + 0.84V
IOZ
-5
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.
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
DDR SDRAM IDD spec table
M470L1624FT0 (16M x 64, 128MB Module)
(VDD=2.7V, T = 10°C)
Symbol
IDD0
IDD1
CC(DDR400@CL=3)
C4(DDR400@CL=3)
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Notes
440
600
16
420
580
16
IDD2P
IDD2F
IDD2Q
IDD3P
IDD3N
IDD4R
IDD4W
IDD5
120
100
220
300
880
1,000
800
12
120
100
220
300
880
1,000
800
12
IDD6
Normal
Low power
IDD7A
6
Optional
6
1,520
1,520
* Module IDD was calculated on the basis of component IDD and can be differently measured according to DQ loading cap.
M470L3224FT0 (32M x 64, 256MB Module)
(VDD=2.7V, T = 10°C)
Symbol
IDD0
IDD1
CC(DDR400@CL=3)
C4(DDR400@CL=3)
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Notes
740
900
32
720
880
32
IDD2P
IDD2F
IDD2Q
IDD3P
IDD3N
IDD4R
IDD4W
IDD5
240
200
440
600
1,180
1,300
1,100
24
240
200
440
600
1,180
1,300
1,100
24
IDD6
Normal
Low power
IDD7A
12
1,820
12
1,820
Optional
* Module IDD was calculated on the basis of component IDD and can be differently measured according to DQ loading cap.
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
AC Operating Conditions
Max
Parameter/Condition
Symbol
Min
Unit
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
VIH(AC)
VIL(AC)
VID(AC)
VIX(AC)
VREF + 0.31
V
V
V
V
3
3
1
2
VREF - 0.31
VDDQ+0.6
0.7
Input Crossing Point Voltage, CK and CK inputs
0.5*VDDQ-0.2 0.5*VDDQ+0.2
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 simula-
tion. 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
CLOAD=30pF
VREF
=0.5*VDDQ
Output Load Circuit (SSTL_2)
Input/Output Capacitance
(VDD=2.6V, VDDQ=2.6V, TA= 25°C, f=1MHz)
Unit
M470L1624FT0
M470L3224FT0
Parameter
Symbol
Min
41
34
34
25
6
Max
45
38
38
30
7
Min
49
42
42
25
6
Max
57
50
50
30
7
Input capacitance(A0 ~ A12, BA0 ~ BA1,RAS,CAS,WE )
Input capacitance(CKE0, CKE1)
Input capacitance( CS0, CS1)
Input capacitance( CLK0, CLK1,CLK2)
Input capacitance(DM0~DM7)
Data & DQS input/output capacitance(DQ0~DQ63)
CIN1
CIN2
CIN3
CIN4
CIN5
Cout1
pF
pF
pF
pF
pF
pF
6
7
6
7
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
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
Refresh row cycle time
Row active time
RAS to CAS delay
Row precharge time
tRC
tRFC
tRAS
tRCD
tRP
ns
ns
ns
ns
ns
70
70
40
70K
40
70K
15
15
18
18
Row active to Row active delay
Write recovery time
tRRD
tWR
10
15
10
15
ns
ns
Internal write to read command delay
tWTR
2
5
6
2
5
6
tCK
ns
ns
CL=3.0
CL=2.5
10
12
10
12
Clock cycle time
tCK
16
13
Clock high level width
Clock low level width
DQS-out access time from CK/CK
Output data access time from CK/CK
Data strobe edge to ouput data edge
Read Preamble
Read Postamble
CK to valid DQS-in
Write preamble setup time
Write preamble
Write postamble
tCH
tCL
tDQSCK
tAC
tDQSQ
tRPRE
tRPST
tDQSS
tWPRES
tWPRE
tWPST
tDSS
0.45
0.45
-0.55
-0.65
-
0.9
0.4
0.72
0
0.25
0.4
0.2
0.2
0.35
0.55
0.55
+0.55
+0.65
0.4
1.1
0.6
1.28
0.45
0.45
-0.55
-0.65
-
0.9
0.4
0.72
0
0.25
0.4
0.2
0.2
0.35
0.55
0.55
+0.55
+0.65
0.4
1.1
0.6
1.28
tCK
tCK
ns
ns
ns
tCK
tCK
tCK
ps
tCK
tCK
tCK
tCK
tCK
tCK
ns
5
4
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
Address and Control Input setup time
Address and Control Input hold time
tDQSL
tIS
tIH
0.35
0.6
0.35
0.6
h,7~10
h,7~10
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
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
tHZ
tLZ
tMRD
tDS
tDH
tDIPW
tIPW
-
tAC max
tAC max
-
tAC max
tAC max
ns
ns
tCK
ns
ns
3
3
tAC min
2
0.4
0.4
1.75
2.2
tAC min
2
0.4
0.4
1.75
2.2
i, j
i, j
9
ns
ns
Control & Address input pulse width for each input
9
Up to 128Mb
256Mb, 512Mb, 1Gb
15.6
7.8
15.6
7.8
us
us
Refresh interval time
tREFI
6
tHP
tHP
Output DQS valid window
Clock half period
tQH
tHP
-
-
-
-
ns
ns
12
-tQHS
-tQHS
min
tCH/tCL
min
tCH/tCL
11, 12
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
CC(DDR400@CL=3)
C4(DDR400@CL=3)
Parameter
Data hold skew factor
Auto Precharge write recovery + precharge time
Exit self refresh to non-READ command
Exit self refresh to READ command
Symbol
Unit
Note
Min
Max
0.5
-
Min
Max
0.5
-
tQHS
tDAL
tXSNR
tXSRD
ns
ns
ns
12
14
15
-
-
75
75
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.
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
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
MAX
Units
V/ns
Notes
a, k
DQ/DM/DQS input slew rate measured between
VIH(DC), VIL(DC) and VIL(DC), VIH(DC)
0.5
4.0
Table 2 : Input Setup & Hold Time Derating for Slew Rate
Input Slew Rate
tIS
tIH
Units
Notes
0.5 V/ns
0
0
ps
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
tDS
tDH
Units
Notes
0.5 V/ns
0
0
ps
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
tDS
tDH
Units
Notes
+/- 0.0 V/ns
0
0
ps
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
Minimum
(V/ns)
Maximum
(V/ns)
Slew Rate Characteristic
Notes
(V/ns)
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
Minimum
(V/ns)
Maximum
(V/ns)
Slew Rate Characteristic
Notes
(V/ns)
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
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
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.
The remaining DQ bits remain the same as for previous state.
d. Evaluation conditions
Typical : 25 °C (T Ambient), VDDQ = 2.5V, typical process
Minimum : 70 °C (T Ambient), VDDQ = 2.3V, 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. Only intended for operation up to 266 Mbps per pin.
i. 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.
j. 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.
k. 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.
m. 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.
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
(V=Valid, X=Don′t Care, H=Logic High, L=Logic Low)
Command Truth Table
A0 ~ A9,
CKEn-1
CKEn
CS
RAS
CAS
WE
BA0,1
A10/AP
Note
COMMAND
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
H
H
X
X
3
Bank Active & Row Addr.
V
V
Row Address
L
Read &
Column Address
Auto Precharge Disable
Auto Precharge Enable
Auto Precharge Disable
Auto Precharge Enable
4
4
Column
L
H
L
H
Address
H
L
Write &
Column Address
4
Column
Address
H
H
H
X
X
X
L
L
L
H
H
L
L
H
H
L
L
L
V
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
X
H
L
Entry
H
Precharge Power Down Mode
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.
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
Physical Dimensions :16M x64 (M470L1624FT0)
Units : Inches (Millimeters)
2.70
(67.60)
2.50
(63.60)
Full R 2x
0.16 ± 0.039
(4.00 ± 0.10)
1
39 41
199
0.456
11.40
1.896
(47.40)
0.086
2.15
2-φ 0.07
(1.80)
0.17
(4.20)
0.096
(2.40)
0.07
(1.8)
Z
Y
0.098
2.45
2
40 42
200
0.150 Max
(3.80 Max)
0.018 ± 0.001
(0.45 ± 0.03)
0.16 ± 0.0039
(4.00 ± 0.10)
0.01
(0.25)
0.04 ± 0.0039
(1.00 ± 0.1)
0.024 TYP
(0.60 TYP)
0.04 ± 0.0039
(1.00 ± 0.10)
Detail Z
Detail Y
Tolerances : ±.006(.15) unless otherwise specified
The used device is 16Mx16 SDRAM, TSOPII
SDRAM Part No. : K4H561638F-T***
Rev. 1.2 March. 2003
DDR SDRAM
128MB, 256MB Unbuffered SODIMM
Physical Dimensions : 32M x64 (M470L3224FT0)
Units : Inches (Millimeters)
2.70
(67.60)
2.50
(63.60)
Full R 2x
0.16 ± 0.039
(4.00 ± 0.10)
1
39 41
199
0.456
11.40
1.896
(47.40)
0.086
2.15
2-φ 0.07
(1.80)
0.17
(4.20)
0.096
(2.40)
0.07
(1.8)
Z
Y
0.098
2.45
2
40 42
200
0.150 Max
(3.80 Max)
0.018 ± 0.001
(0.45 ± 0.03)
0.16 ± 0.0039
(4.00 ± 0.10)
0.01
(0.25)
0.04 ± 0.0039
(1.00 ± 0.1)
0.024 TYP
(0.60 TYP)
0.04 ± 0.0039
(1.00 ± 0.10)
Detail Z
Detail Y
Tolerances : ±.006(.15) unless otherwise specified
The used device is 16Mx16 SDRAM, TSOPII
SDRAM Part No. : K4H561638F-T***
Rev. 1.2 March. 2003
相关型号:
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