Micron MT8HTF3264AY Ddr2 sdram udimm Datasheet

256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
Features
DDR2 SDRAM UDIMM
MT8HTF3264AY – 256MB
MT8HTF6464AY – 512MB
MT8HTF12864AY – 1GB
Features
Figure 1: 240-Pin UDIMM (MO-237 R/C A and D)
• 240-pin, unbuffered dual in-line memory module
• Fast data transfer rates: PC2-3200, PC2-4200,
PC2-5300, PC2-6400, or PC2-8500
• 256MB (32 Meg x 64), 512MB (64 Meg x 64),
or 1GB (128 Meg x 64
• VDD = VDDQ = 1.8V
• VDDSPD = 1.7–3.6V
• JEDEC-standard 1.8V I/O (SSTL_18-compatible)
• Differential data strobe (DQS, DQS#) option
• 4n-bit prefetch architecture
• Multiple internal device banks for concurrent
operation
• Programmable CAS latency (CL)
• Posted CAS additive latency (AL)
• WRITE latency = READ latency - 1 tCK
• Programmable burst lengths (BL): 4 or 8
• Adjustable data-output drive strength
• 64ms, 8192-cycle refresh
• On-die termination (ODT)
• Serial presence detect (SPD) with EEPROM
• Gold edge contacts
• Single rank
PCB height: 30.0mm (1.18in)
Options
Marking
• Operating temperature
– Commercial (0°C ≤ TA ≤ +70°C)
– Industrial (–40°C ≤ TA ≤ +85°C)1
• Package
– 240-pin DIMM (lead-free)
• Frequency/CL2
– 1.875ns @ CL = 7 (DDR2-1066)3
– 2.5ns @ CL = 5 (DDR2-800)
– 2.5ns @ CL = 6 (DDR2-800)
– 3.0ns @ CL = 5 (DDR2-667)
– 3.75ns @ CL = 4 (DDR2-533)4
– 5.0ns @ CL = 3 (DDR2-400)
Notes:
None
I
Y
-1GA
-80E
-800
-667
-53E
-40E
1. Contact Micron for industrial temperature
module offerings.
2. CL = CAS (READ) latency.
3. Available only in 1GB, Rev. E devices.
4. Not recommended for new designs.
Table 1: Key Timing Parameters
Data Rate (MT/s)
tRCD
tRP
tRC
CL = 3
(ns)
(ns)
(ns)
533
400
13.125
13.125
58.125
533
400
12.5
12.5
57.5
667
533
400
15
15
60
–
667
553
400
15
15
60
PC2-4200
–
–
553
400
15
15
55
PC2-3200
–
–
400
400
15
15
55
1
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
Speed
Grade
Industry
Nomenclature
CL = 7
CL = 6
CL = 5
CL = 4
-1GA
PC2-8500
1066
800
667
-80E
PC2-6400
800
800
-800
PC2-6400
800
-667
PC2-5300
-53E
-40E
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
Products and specifications discussed herein are subject to change by Micron without notice.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
Features
Table 2: Addressing
Parameter
Refresh count
Row address
256MB
512MB
1GB
8K
8K
8K
16K A[12:0]
16K A[13:0]
16K A[13:0]
Device bank address
4 BA[2:0]
4 BA[2:0]
8 BA[3:0]
Device configuration
256Mb (32 Meg x 8)
512Mb (64 Meg x 8)
1Gb (128 Meg x 8)
1K A[9:0]
1K A[9:0]
1K A[9:0]
1 S0#
1 S0#
1 S0#
Column address
Module rank address
Table 3: Part Numbers and Timing Parameters – 256MB Modules (End of Life)
Base device: MT47H32M8,1 256Mb DDR2 SDRAM
Module
Part Number2
Density
Configuration
Module
Bandwidth
Memory Clock/
Data Rate
Clock Cycles
(CL-tRCD-tRP)
MT8HTF3264A(I)Y-667__
256MB
32 Meg x 64
5.3 GB/s
3.0ns/667 MT/s
5-5-5
MT8HTF3264A(I)Y-53E__
256MB
32 Meg x 64
4.3 GB/s
3.75ns/533 MT/s
4-4-4
MT8HTF3264A(I)Y-40E__
256MB
32 Meg x 64
3.2 GB/s
5.0ns/400 MT/s
3-3-3
Module
Bandwidth
Memory Clock/
Data Rate
Clock Cycles
(CL-tRCD-tRP)
Table 4: Part Numbers and Timing Parameters – 512MB Modules
Base device: MT47H64M8,1 512Mb DDR2 SDRAM
Module
Part Number2
Density
Configuration
MT8HTF6464A(I)Y-80E__
512MB
64 Meg x 64
6.2 GB/s
2.5ns/800 MT/s
5-5-5
MT8HTF6464A(I)Y-800__
512MB
64 Meg x 64
6.2 GB/s
2.5ns/800 MT/s
6-6-6
MT8HTF6464A(I)Y-667__
512MB
64 Meg x 64
5.3 GB/s
3.0ns/667 MT/s
5-5-5
MT8HTF6464A(I)Y-53E__
512MB
64 Meg x 64
4.3 GB/s
3.75ns/533 MT/s
4-4-4
MT8HTF6464A(I)Y-40E__
512MB
64 Meg x 64
3.2 GB/s
5.0ns/400 MT/s
3-3-3
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
2
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
Features
Table 5: Part Numbers and Timing Parameters – 1GB Modules
Base device: MT47H128M8,1 1Gb DDR2 SDRAM
Module
Part Number2
Density
Configuration
Module
Bandwidth
Memory Clock/
Data Rate
Clock Cycles
(CL-tRCD-tRP)
MT8HTF12864A(I)Y-1GA__
1GB
128 Meg x 64
8.5 GB/s
1.875ns/1066 MT/s
7-7-7
MT8HTF12864A(I)Y-80E__
1GB
128 Meg x 64
6.2 GB/s
2.5ns/800 MT/s
5-5-5
MT8HTF12864A(I)Y-800__
1GB
128 Meg x 64
6.2 GB/s
2.5ns/800 MT/s
6-6-6
MT8HTF12864A(I)Y-667__
1GB
128 Meg x 64
5.3 GB/s
3.0ns/667 MT/s
5-5-5
MT8HTF12864A(I)Y-53E__
1GB
128 Meg x 64
4.3 GB/s
3.75ns/533 MT/s
4-4-4
MT8HTF12864A(I)Y-40E__
1GB
128 Meg x 64
3.2 GB/s
5.0ns/400 MT/s
3-3-3
Notes:
1. The data sheet for the base device can be found on Micron’s Web site.
2. All part numbers end with a two-place code (not shown) that designates component and PCB revisions.
Consult factory for current revision codes. Example: MT8HTF12864AY-667E1.
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
3
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
Pin Assignments
Pin Assignments
Table 6: Pin Assignments
240-Pin UDIMM Front
240-Pin UDIMM Back
Pin
Symbol
Pin
Symbol
Pin
Symbol
Pin
Symbol
Pin
Symbol
Pin
Symbol
Pin
Symbol
Pin
Symbol
1
VREF
31
DQ19
61
A4
91
VSS
121
VSS
151
VSS
181
VDDQ
211
DM5
2
VSS
32
VSS
62
VDDQ
92
DQS5#
122
DQ4
152
DQ28
182
A3
212
NC
3
DQ0
33
DQ24
63
A2
93
DQS5
123
DQ5
153
DQ29
183
A1
213
VSS
4
DQ1
34
DQ25
64
VDD
94
VSS
124
VSS
154
VSS
184
VDD
214
DQ46
5
VSS
35
VSS
65
VSS
95
DQ42
125
DM0
155
DM3
185
CK0
215
DQ47
6
DQS0#
36
DQS3#
66
VSS
96
DQ43
126
NC
156
NC
186
CK0#
216
VSS
7
DQS0
37
DQS3
67
VDD
97
VSS
127
VSS
157
VSS
187
VDD
217
DQ52
8
VSS
38
VSS
68
NC
98
DQ48
128
DQ6
158
DQ30
188
A0
218
DQ53
9
DQ2
39
DQ26
69
VDD
99
DQ49
129
DQ7
159
DQ31
189
VDD
219
VSS
10
DQ3
40
DQ27
70
A10
100
VSS
130
VSS
160
VSS
190
BA1
220
CK2
11
VSS
41
VSS
71
BA0
101
SA2
131
DQ12
161
NC
191
VDDQ
221
CK2#
12
DQ8
42
NC
72
VDDQ
102
NC
132
DQ13
162
NC
192
RAS#
222
VSS
13
DQ9
43
NC
73
WE#
103
VSS
133
VSS
163
VSS
193
S0#
223
DM6
14
VSS
44
VSS
74
CAS#
104
DQS6#
134
DM1
164
NC
194
VDDQ
224
NC
15
DQS1#
45
NC
75
VDDQ
105
DQS6
135
NC
165
NC
195
ODT0
225
VSS
16
DQS1
46
NC
76
NC
106
VSS
136
VSS
166
VSS
196
NC/A132
226
DQ54
17
VSS
47
VSS
77
NC
107
DQ50
137
CK1
167
NC
197
VDD
227
DQ55
18
NC
48
NC
78
VDDQ
108
DQ51
138
CK1#
168
NC
198
VSS
228
VSS
19
NC
49
NC
79
VSS
109
VSS
139
VSS
169
VSS
199
DQ36
229
DQ60
20
VSS
50
VSS
80
DQ32
110
DQ56
140
DQ14
170
VDDQ
200
DQ37
230
DQ61
21
DQ10
51
VDDQ
81
DQ33
111
DQ57
141
DQ15
171
NC
201
VSS
231
VSS
22
DQ11
52
CKE0
82
VSS
112
VSS
142
VSS
172
VDD
202
DM4
232
DM7
23
VSS
53
VDD
83
DQS4#
113
DQS7#
143
DQ20
173
NC
203
NC
233
NC
84
DQS4
114
DQS7
144
DQ21
174
NC
204
VSS
234
VSS
85
VSS
115
VSS
145
VSS
175
VDDQ
205
DQ38
235
DQ62
24
DQ16
54
NC/BA21
25
DQ17
55
NC
26
VSS
56
VDDQ
86
DQ34
116
DQ58
146
DM2
176
A12
206
DQ39
236
DQ63
27
DQS2#
57
A11
87
DQ35
117
DQ59
147
NC
177
A9
207
VSS
237
VSS
28
DQS2
58
A7
88
VSS
118
VSS
148
VSS
178
VDD
208
DQ44
238
VDDSPD
29
VSS
59
VDD
89
DQ40
119
SDA
149
DQ22
179
A8
209
DQ45
239
SA0
30
DQ18
60
A5
90
DQ41
120
SCL
150
DQ23
180
A6
210
VSS
240
SA1
Notes:
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
1. Pin 54 is NC for 256MB and 512MB or BA2 for 1GB.
2. Pin 196 is NC for 256MB or A13 for 512MB and 1GB.
4
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
Pin Descriptions
Pin Descriptions
The pin description table below is a comprehensive list of all possible pins for all DDR2
modules. All pins listed may not be supported on this module. See Pin Assignments for
information specific to this module.
Table 7: Pin Descriptions
Symbol
Type
Description
Ax
Input
Address inputs: Provide the row address for ACTIVE commands, and the column address and auto precharge bit (A10) for READ/WRITE commands, to select one location
out of the memory array in the respective bank. A10 sampled during a PRECHARGE
command determines whether the PRECHARGE applies to one bank (A10 LOW, bank
selected by BAx) or all banks (A10 HIGH). The address inputs also provide the op-code
during a LOAD MODE command. See the Pin Assignments Table for density-specific
addressing information.
BAx
Input
Bank address inputs: Define the device bank to which an ACTIVE, READ, WRITE, or
PRECHARGE command is being applied. BA define which mode register (MR0, MR1,
MR2, and MR3) is loaded during the LOAD MODE command.
CKx,
CK#x
Input
Clock: Differential clock inputs. All control, command, and address input signals are
sampled on the crossing of the positive edge of CK and the negative edge of CK#.
CKEx
Input
Clock enable: Enables (registered HIGH) and disables (registered LOW) internal circuitry and clocks on the DDR2 SDRAM.
DMx,
Input
Data mask (x8 devices only): DM is an input mask signal for write data. Input data
is masked when DM is sampled HIGH, along with that input data, during a write access. Although DM pins are input-only, DM loading is designed to match that of the
DQ and DQS pins.
ODTx
Input
On-die termination: Enables (registered HIGH) and disables (registered LOW) termination resistance internal to the DDR2 SDRAM. When enabled in normal operation,
ODT is only applied to the following pins: DQ, DQS, DQS#, DM, and CB. The ODT input
will be ignored if disabled via the LOAD MODE command.
Par_In
Input
Parity input: Parity bit for Ax, RAS#, CAS#, and WE#.
RAS#, CAS#, WE#
Input
Command inputs: RAS#, CAS#, and WE# (along with S#) define the command being
entered.
RESET#
Input
Reset: Asynchronously forces all registered outputs LOW when RESET# is LOW. This
signal can be used during power-up to ensure that CKE is LOW and DQ are High-Z.
S#x
Input
Chip select: Enables (registered LOW) and disables (registered HIGH) the command
decoder.
SAx
Input
Serial address inputs: Used to configure the SPD EEPROM address range on the I2C
bus.
SCL
Input
Serial clock for SPD EEPROM: Used to synchronize communication to and from the
SPD EEPROM on the I2C bus.
CBx
I/O
Check bits. Used for system error detection and correction.
DQx
I/O
Data input/output: Bidirectional data bus.
DQSx,
DQS#x
I/O
Data strobe: Travels with the DQ and is used to capture DQ at the DRAM or the controller. Output with read data; input with write data for source synchronous operation. DQS# is only used when differential data strobe mode is enabled via the LOAD
MODE command.
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
5
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
Pin Descriptions
Table 7: Pin Descriptions (Continued)
Symbol
Type
SDA
I/O
Serial data: Used to transfer addresses and data into and out of the SPD EEPROM on
the I2C bus.
RDQSx,
RDQS#x
Output
Redundant data strobe (x8 devices only): RDQS is enabled/disabled via the LOAD
MODE command to the extended mode register (EMR). When RDQS is enabled, RDQS
is output with read data only and is ignored during write data. When RDQS is disabled, RDQS becomes data mask (see DMx). RDQS# is only used when RDQS is enabled
and differential data strobe mode is enabled.
Err_Out#
Description
Output
Parity error output: Parity error found on the command and address bus.
(open drain)
VDD/VDDQ
Supply
Power supply: 1.8V ±0.1V. The component VDD and VDDQ are connected to the module VDD.
VDDSPD
Supply
SPD EEPROM power supply: 1.7–3.6V.
VREF
Supply
Reference voltage: VDD/2.
VSS
Supply
Ground.
NC
–
No connect: These pins are not connected on the module.
NF
–
No function: These pins are connected within the module, but provide no functionality.
NU
–
Not used: These pins are not used in specific module configurations/operations.
RFU
–
Reserved for future use.
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
6
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
Functional Block Diagram
Functional Block Diagram
Figure 2: Functional Block Diagram – Raw Card D
S0#
VSS
DQS0#
DQS0
DQS4#
DQS4
DM0
DM4
DM CS# DQS DQS#
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
U1
DQS1#
DQS1
DM1
CS# DQS DQS#
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
DM
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DM
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
CS# DQS DQS#
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
DM CS# DQS DQS#
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
U2
DQS2#
DQS2
DM2
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
U3
DM
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DM CS# DQS DQS#
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
U4
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
7
DM
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
RAS#: DDR2 SDRAM
WE#
CKE0
WE#: DDR2 SDRAM
CAS#: DDR2 SDRAM
CKE0: DDR2 SDRAM
VSS
ODT0: DDR2 SDRAM
VSS
U7
CS# DQS DQS#
VDDSPD
SPD EEPROM
VDD/VDDQ
DDR2 SDRAM
VREF
DDR2 SDRAM
VSS
DDR2 SDRAM
U5
SPD EEPROM
SCL
WP A0 A1
SDA
A2
VSS SA0 SA1 SA2
U8
DQS7#
DQS7
DM7
DQS3#
DQS3
DM3
A[13:0]: DDR2 SDRAM
RAS#
CAS#
ODT0
DQS6#
DQS6
DM6
DM CS# DQS DQS#
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
U6
DQS5#
DQS5
DM5
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
BA[2/1:0]: DDR2 SDRAM
BA[2/1:0]
A[13:0]
CS# DQS DQS#
U9
CK0
CK0#
U4, U6
CK1
CK1#
U1–U3
CK2
CK2#
U7–U9
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
Functional Block Diagram
Figure 3: Functional Block Diagram – Alternate Clock
S0#
VSS
DQS0#
DQS0
DM0
DQS4#
DQS4
DM4
DM CS# DQS DQS#
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
U1
DQS1#
DQS1
DM1
CS# DQS DQS#
U5
BA[2/1:0]: DDR2 SDRAM
BA[2/1:0]
A[13:0]
RAS#
CAS#
WE#
CKE0
A[13:0]: DDR2 SDRAM
RAS#: DDR2 SDRAM
CAS#: DDR2 SDRAM
WE#: DDR2 SDRAM
CKE0: DDR2 SDRAM
VSS
ODT0
ODT0: DDR2 SDRAM
DQS5#
DQS5
DM5
VSS
DM CS# DQS DQS#
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
U2
DQS2#
DQS2
DM
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
CS# DQS DQS#
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
DM
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
CS# DQS DQS#
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
CS# DQS DQS#
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
DM
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
U6
VDDSPD
SPD EEPROM
VDD/VDDQ
DDR2 SDRAM
VREF
DDR2 SDRAM
VSS
DDR2 SDRAM
DQS6#
DQS6
DM2
U9
DM6
DM CS# DQS DQS#
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
U3
U7
DM CS# DQS DQS#
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
U4
8
SPD EEPROM
SDA
A2
VSS SA0 SA1 SA2
CK0
CK0#
DM7
DM3
SCL
WP A0 A1
DQS7#
DQS7
DQS3#
DQS3
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
DM
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
U8
CK1
CK1#
U1–U4
CK2
CK2#
U5–U8
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
General Description
General Description
DDR2 SDRAM modules are high-speed, CMOS dynamic random access memory modules that use internally configured 4 or 8-bank DDR2 SDRAM devices. DDR2 SDRAM
modules use DDR architecture to achieve high-speed operation. DDR2 architecture is
essentially a 4n-prefetch architecture with an interface designed to transfer two data
words per clock cycle at the I/O pins. A single read or write access for the DDR2 SDRAM
module effectively consists of a single 4n-bit-wide, one-clock-cycle data transfer at the
internal DRAM core and eight corresponding n-bit-wide, one-half-clock-cycle data transfers at the I/O pins.
DDR2 modules use two sets of differential signals: DQS, DQS# to capture data and CK
and CK# to capture commands, addresses, and control signals. Differential clocks and
data strobes ensure exceptional noise immunity for these signals and provide precise
crossing points to capture input signals. A bidirectional data strobe (DQS, DQS#) is transmitted externally, along with data, for use in data capture at the receiver. DQS is a
strobe transmitted by the DDR2 SDRAM device during READs and by the memory controller during WRITEs. DQS is edge-aligned with data for READs and center-aligned
with data for WRITEs.
DDR2 SDRAM modules operate from a differential clock (CK and CK#); the crossing of
CK going HIGH and CK# going LOW will be referred to as the positive edge of CK. Commands (address and control signals) are registered at every positive edge of CK. Input
data is registered on both edges of DQS, and output data is referenced to both edges of
DQS, as well as to both edges of CK.
Serial Presence-Detect EEPROM Operation
DDR2 SDRAM modules incorporate serial presence-detect. The SPD data is stored in a
256-byte EEPROM. The first 128 bytes are programmed by Micron to identify the module type and various SDRAM organizations and timing parameters. The remaining 128
bytes of storage are available for use by the customer. System READ/WRITE operations
between the master (system logic) and the slave EEPROM device occur via a standard
I2C bus using the DIMM’s SCL (clock) SDA (data), and SA (address) pins. Write protect
(WP) is connected to VSS, permanently disabling hardware write protection.
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
9
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
Electrical Specifications
Electrical Specifications
Stresses greater than those listed may cause permanent damage to the module. This is a
stress rating only, and functional operation of the module at these or any other conditions outside those indicated in the device data sheet is not implied. Exposure to
absolute maximum rating conditions for extended periods may adversely affect reliability.
Table 8: Absolute Maximum Ratings
Symbol
Parameter
Min
Max
Units
VDD/VDDQ
VDD/VDDQ supply voltage relative to VSS
–0.5
2.3
V
VIN, VOUT
Voltage on any pin relative to VSS
–0.5
2.3
V
Input leakage current; Any input 0V ≤ VIN ≤ VDD; Address inputs, RAS#,
CAS#, WE#, S#, CKE,
VREF input 0V ≤ VIN ≤ 0.95V; (All other pins not
ODT, BA
under test = 0V)
–40
40
µA
CK0, CK0#
(raw card D)
–10
10
CK1, CK1#, CK2, CK2#
(raw card D)
–15
15
CK1, CK1#, CK2, CK2#
(alternate clock)
–20
20
DM
–5
5
DQ, DQS, DQS#
–5
5
µA
–16
16
µA
0
85
°C
–40
95
°C
0
70
°C
–40
85
°C
II
IOZ
Output leakage current; 0V ≤ VOUT ≤ VDDQ; DQ
and ODT are disabled
IVREF
VREF leakage current; VREF = valid VREF level
TC1
DDR2 SDRAM component operating temperature2
Commercial
Module ambient operating temperature
Commercial
TA
Industrial
Industrial
Notes:
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
1. The refresh rate is required to double when TC exceeds 85°C.
2. For further information, refer to technical note TN-00-08: "Thermal Applications," available on Micron’s Web site.
10
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
DRAM Operating Conditions
DRAM Operating Conditions
Recommended AC operating conditions are given in the DDR2 component data sheets.
Component specifications are available on Micron's Web site. Module speed grades correlate with component speed grades.
Table 9: Module and Component Speed Grades
DDR2 components may exceed the listed module speed grades; module may not be available in all listed speed grades
Module Speed Grade
Component Speed Grade
-1GA
-187E
-80E
-25E
-800
-25
-667
-3
-53E
-37E
-40E
-5E
Design Considerations
Simulations
Micron memory modules are designed to optimize signal integrity through carefully designed terminations, controlled board impedances, routing topologies, trace length
matching, and decoupling. However, good signal integrity starts at the system level. Micron encourages designers to simulate the signal characteristics of the system's memory bus to ensure adequate signal integrity of the entire memory system.
Power
Operating voltages are specified at the DRAM, not at the edge connector of the module.
Designers must account for any system voltage drops at anticipated power levels to ensure the required supply voltage is maintained.
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
11
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
IDD Specifications
IDD Specifications
Table 10: DDR2 IDD Specifications and Conditions – 256MB
Values shown for MT47H32M8 DDR2 SDRAM only and are computed from values specified in the 256Mb (32 Meg x 8)
component data sheet
Parameter
Symbol
-667
-53E
-40E Units
Operating one bank active-precharge current:tCK = tCK (IDD), tRC = tRC
(IDD), tRAS = tRAS MIN (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data bus inputs are switching
IDD0
720
640
600
mA
Operating one bank active-read-precharge current: IOUT = 0mA; BL =
4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS MIN (IDD),
tRCD = tRCD (I ); CKE is HIGH, S# is HIGH between valid commands; AdDD
dress bus inputs are switching; Data pattern is same as IDD4W
IDD1
800
720
680
mA
Precharge power-down current: All device banks idle; tCK = tCK (IDD);
CKE is LOW; Other control and address bus inputs are stable; Data bus inputs are floating
IDD2P
40
40
40
mA
Precharge quiet standby current: All device banks idle; tCK = tCK (IDD);
CKE is HIGH, S# is HIGH; Other control and address bus inputs are stable;
Data bus inputs are floating
IDD2Q
320
280
200
mA
Precharge standby current: All device banks idle; tCK = tCK (IDD); CKE is
HIGH, S# is HIGH; Other control and address bus inputs are switching; Data
bus inputs are switching
IDD2N
320
280
240
mA
Active power-down current: All device banks open; tCK = Fast PDN exit
tCK (I ); CKE is LOW; Other control and address bus inputs
MR[12] = 0
DD
are stable; Data bus inputs are floating
Slow PDN exit
MR[12] = 1
IDD3PF
240
200
160
mA
IDD3PS
48
48
48
Active standby current: All device banks open; tCK = tCK (IDD), tRAS =
tRAS MAX (I ), tRP = tRP (I ); CKE is HIGH, S# is HIGH between valid comDD
DD
mands; Other control and address bus inputs are switching; Data bus inputs
are switching
IDD3N
400
320
240
mA
Operating burst write current: All device banks open; Continuous burst
writes; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS MAX (IDD),
tRP = tRP (I ); CKE is HIGH, S# is HIGH between valid commands; Address
DD
bus inputs are switching; Data bus inputs are switching
IDD4W
1520
1280
1000
mA
Operating burst read current: All device banks open; Continuous burst
read, IOUT = 0mA; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS
MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands;
Address bus inputs are switching; Data bus inputs are switching
IDD4R
1440
1200
920
mA
Burst refresh current:tCK = tCK (IDD); REFRESH command at every tRFC
(IDD) interval; CKE is HIGH, S# is HIGH between valid commands; Other control and address bus inputs are switching; Data bus inputs are switching
IDD5
1440
1360
1320
mA
Self refresh current: CK and CK# at 0V; CKE ≤ 0.2V; Other control and address bus inputs are floating; Data bus inputs are floating
IDD6
40
40
40
mA
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
12
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
IDD Specifications
Table 10: DDR2 IDD Specifications and Conditions – 256MB (Continued)
Values shown for MT47H32M8 DDR2 SDRAM only and are computed from values specified in the 256Mb (32 Meg x 8)
component data sheet
Parameter
Symbol
-667
-53E
-40E Units
Operating bank interleave read current: All device banks interleaving
reads; IOUT = 0mA; BL = 4, CL = CL (IDD), AL = tRCD (IDD) - 1 × tCK (IDD); tCK =
tCK (I ), tRC = tRC (I ), tRRD = tRRD (I ), tRCD = tRCD (I ); CKE is HIGH,
DD
DD
DD
DD
S# is HIGH between valid commands; Address bus inputs are stable during
deselects; Data bus inputs are switching
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
13
IDD7
2000
1920
1840
mA
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
IDD Specifications
Table 11: DDR2 IDD Specifications and Conditions – 512MB
Values shown for MT47H64M8 DDR2 SDRAM only and are computed from values specified in the 512Mb (64 Meg x 8)
component data sheet
-80E
Parameter
Symbol -800 -667 -53E -40E Units
Operating one bank active-precharge current:tCK = tCK (IDD), tRC =
tRC (I ), tRAS = tRAS MIN (I ); CKE is HIGH, S# is HIGH between valid
DD
DD
commands; Address bus inputs are switching; Data bus inputs are switching
IDD0
800
720
640
640
mA
Operating one bank active-read-precharge current: IOUT = 0mA; BL =
4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS MIN
(IDD), tRCD = tRCD (IDD); CKE is HIGH, S# is HIGH between valid commands;
Address bus inputs are switching; Data pattern is same as IDD4W
IDD1
920
840
760
720
mA
Precharge power-down current: All device banks idle; tCK = tCK (IDD);
CKE is LOW; Other control and address bus inputs are stable; Data bus inputs are floating
IDD2P
56
56
56
56
mA
Precharge quiet standby current: All device banks idle; tCK = tCK (IDD);
CKE is HIGH, S# is HIGH; Other control and address bus inputs are stable;
Data bus inputs are floating
IDD2Q
400
360
320
280
mA
Precharge standby current: All device banks idle; tCK = tCK (IDD); CKE is
HIGH, S# is HIGH; Other control and address bus inputs are switching; Data bus inputs are switching
IDD2N
400
400
360
320
mA
Active power-down current: All device banks open; tCK Fast PDN exit
= tCK (IDD); CKE is LOW; Other control and address bus in- MR[12] = 0
puts are stable; Data bus inputs are floating
Slow PDN exit
MR[12] = 1
IDD3PF
320
280
240
200
mA
IDD3PS
96
96
96
96
Active standby current: All device banks open; tCK = tCK (IDD), tRAS =
tRAS MAX (I ), tRP = tRP (I ); CKE is HIGH, S# is HIGH between valid comDD
DD
mands; Other control and address bus inputs are switching; Data bus
inputs are switching
IDD3N
560
520
440
360
mA
Operating burst write current: All device banks open; Continuous
burst writes; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS MAX
(IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands;
Address bus inputs are switching; Data bus inputs are switching
IDD4W
1560
1360
1120
920
mA
Operating burst read current: All device banks open; Continuous burst
read, IOUT = 0mA; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS
MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs are switching; Data bus inputs are switching
IDD4R
1640
1440
1160
920
mA
Burst refresh current:tCK = tCK (IDD); REFRESH command at every tRFC
(IDD) interval; CKE is HIGH, S# is HIGH between valid commands; Other control and address bus inputs are switching; Data bus inputs are switching
IDD5
1840
1440
1360
1320
mA
Self refresh current: CK and CK# at 0V; CKE ≤ 0.2V; Other control and
address bus inputs are floating; Data bus inputs are floating
IDD6
56
56
56
56
mA
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
14
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
IDD Specifications
Table 11: DDR2 IDD Specifications and Conditions – 512MB (Continued)
Values shown for MT47H64M8 DDR2 SDRAM only and are computed from values specified in the 512Mb (64 Meg x 8)
component data sheet
-80E
Parameter
Symbol -800 -667 -53E -40E Units
Operating bank interleave read current: All device banks interleaving
reads; IOUT = 0mA; BL = 4, CL = CL (IDD), AL = tRCD (IDD) - 1 × tCK (IDD); tCK
= tCK (IDD), tRC = tRC (IDD), tRRD = tRRD (IDD), tRCD = tRCD (IDD); CKE is
HIGH, S# is HIGH between valid commands; Address bus inputs are stable
during deselects; Data bus inputs are switching
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
15
IDD7
2400
1920
1800
1760
mA
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
IDD Specifications
Table 12: DDR2 IDD Specifications and Conditions – 1GB
Values shown for MT47H128M8 DDR2 SDRAM only and are computed from values specified in the 1Gb (128 Meg x 8) component data sheet
Parameter
Symbol -667
-53E
-40E Units
Operating one bank active-precharge current:tCK = tCK (IDD), tRC = tRC
(IDD), tRAS = tRAS MIN (IDD); CKE is HIGH, S# is HIGH between valid commands;
Address bus inputs are switching; Data bus inputs are switching
IDD0
720
640
560
mA
Operating one bank active-read-precharge current: IOUT = 0mA; BL = 4, CL
= CL (IDD), AL = 0; tCK = tCK (IDD), tRC = tRC (IDD), tRAS = tRAS MIN (IDD), tRCD =
tRCD (I ); CKE is HIGH, S# is HIGH between valid commands; Address bus inDD
puts are switching; Data pattern is same as IDD4W
IDD1
800
760
640
mA
Precharge power-down current: All device banks idle; tCK = tCK (IDD); CKE is
LOW; Other control and address bus inputs are stable; Data bus inputs are floating
IDD2P
56
56
56
mA
Precharge quiet standby current: All device banks idle; tCK = tCK (IDD); CKE
is HIGH, S# is HIGH; Other control and address bus inputs are stable; Data bus
inputs are floating
IDD2Q
440
328
280
mA
Precharge standby current: All device banks idle; tCK = tCK (IDD); CKE is
HIGH, S# is HIGH; Other control and address bus inputs are switching; Data bus
inputs are switching
IDD2N
480
360
320
mA
Fast PDN exit
Active power-down current: All device banks open; tCK =
tCK (I ); CKE is LOW; Other control and address bus inputs are MR[12] = 0
DD
stable; Data bus inputs are floating
Slow PDN exit
MR[12] = 1
IDD3PF
320
240
200
mA
IDD3PS
80
80
80
Active standby current: All device banks open; tCK = tCK (IDD), tRAS = tRAS
MAX (IDD), tRP = tRP (IDD); CKE is HIGH, S# is HIGH between valid commands;
Other control and address bus inputs are switching; Data bus inputs are switching
IDD3N
560
440
360
mA
Operating burst write current: All device banks open; Continuous burst
writes; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS MAX (IDD), tRP =
tRP (I ); CKE is HIGH, S# is HIGH between valid commands; Address bus inputs
DD
are switching; Data bus inputs are switching
IDD4W
1280
1040
880
mA
Operating burst read current: All device banks open; Continuous burst read,
IOUT = 0mA; BL = 4, CL = CL (IDD), AL = 0; tCK = tCK (IDD), tRAS = tRAS MAX (IDD),
tRP = tRP (I ); CKE is HIGH, S# is HIGH between valid commands; Address bus
DD
inputs are switching; Data bus inputs are switching
IDD4R
1280
1160
880
mA
Burst refresh current:tCK = tCK (IDD); REFRESH command at every tRFC (IDD)
interval; CKE is HIGH, S# is HIGH between valid commands; Other control and
address bus inputs are switching; Data bus inputs are switching
IDD5
2080
2000
1760
mA
Self refresh current: CK and CK# at 0V; CKE ≤ 0.2V; Other control and address bus inputs are floating; Data bus inputs are floating
IDD6
56
56
56
mA
Operating bank interleave read current: All device banks interleaving
reads; IOUT = 0mA; BL = 4, CL = CL (IDD), AL = tRCD (IDD) - 1 × tCK (IDD); tCK = tCK
(IDD), tRC = tRC (IDD), tRRD = tRRD (IDD), tRCD = tRCD (IDD); CKE is HIGH, S# is
HIGH between valid commands; Address bus inputs are stable during deselects;
Data bus inputs are switching
IDD7
2400
2320
2080
mA
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
16
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
Serial Presence-Detect
Serial Presence-Detect
For the latest SPD data, refer to Micron's SPD page: www.micron.com/SPD.
Table 13: SPD EEPROM Operating Conditions
Parameter/Condition
Symbol
Min
Max
Units
VDDSPD
1.7
3.6
V
Input high voltage: logic 1; All inputs
VIH
VDDSPD × 0.7
VDDSPD + 0.5
V
Input low voltage: logic 0; All inputs
VIL
–0.6
VDDSPD × 0.3
V
Output low voltage: IOUT = 3mA
Supply voltage
VOL
–
0.4
V
Input leakage current: VIN = GND to VDD
ILI
0.1
3
µA
Output leakage current: VOUT = GND to VDD
ILO
0.05
3
µA
Standby current
ISB
1.6
4
µA
Power supply current, READ: SCL clock frequency = 100 kHz
ICCR
0.4
1
mA
Power supply current, WRITE: SCL clock frequency = 100 kHz
ICCW
2
3
mA
Table 14: SPD EEPROM AC Operating Conditions
Symbol
Min
Max
Units
Notes
SCL LOW to SDA data-out valid
Parameter/Condition
tAA
0.2
0.9
µs
1
Time bus must be free before a new transition can start
tBUF
1.3
–
µs
Data-out hold time
tDH
200
–
ns
SDA and SCL fall time
tF
–
300
ns
2
SDA and SCL rise time
tR
–
300
ns
2
Data-in hold time
tHD:DAT
0
–
µs
Start condition hold time
tHD:STA
0.6
–
µs
tHIGH
0.6
–
µs
tI
–
50
µs
tLOW
1.3
–
µs
tSCL
–
400
kHz
Data-in setup time
tSU:DAT
100
–
ns
Start condition setup time
tSU:STA
0.6
–
µs
Stop condition setup time
tSU:STO
0.6
–
µs
tWRC
–
10
ms
Clock HIGH period
Noise suppression time constant at SCL, SDA inputs
Clock LOW period
SCL clock frequency
WRITE cycle time
Notes:
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
3
4
1. To avoid spurious start and stop conditions, a minimum delay is placed between SCL = 1
and the falling or rising edge of SDA.
2. This parameter is sampled.
3. For a restart condition or following a WRITE cycle.
4. The SPD EEPROM WRITE cycle time (tWRC) is the time from a valid stop condition of a
write sequence to the end of the EEPROM internal ERASE/PROGRAM cycle. During the
WRITE cycle, the EEPROM bus interface circuit is disabled, SDA remains HIGH due to pullup resistance, and the EEPROM does not respond to its slave address.
17
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
Module Dimensions
Module Dimensions
Figure 4: 240-Pin DDR2 UDIMM
FRONT VIEW
2.7 (0.106)
MAX
133.5 (5.256)
133.2 (5.244)
2.0 (0.079) R
(4X)
U1
U2
U3
U4
U5
U6
U7
U8
30.5 (1.2)
29.85 (1.175)
U9
2.5 (0.098) D
(2X)
17.78 (0.7)
TYP
2.3 (0.091) TYP
0.76 (0.03) R
PIN 1
1.0 (0.039)
TYP
2.21 (0.087) TYP
1.0 (0.039) TYP
10.0 (0.394)
TYP
0.8 (0.031)
TYP
0.054 (1.37)
0.046 (1.17)
PIN 120
70.66 (2.782)
TYP
123.0 (4.840)
TYP
BACK VIEW
45° (4X)
No Components This Side of Module
3.04 (0.1197)
TYP
PIN 240
PIN 121
5.0 (0.197) TYP
55.0 (2.165)
TYP
Notes:
63.0 (2.48)
TYP
1. All dimensions are in millimeters (inches); MAX/MIN or typical (TYP) where noted.
2. The dimensional diagram is for reference only. Refer to the JEDEC MO document for
additional design dimensions.
8000 S. Federal Way, P.O. Box 6, Boise, ID 83707-0006, Tel: 208-368-3900
www.micron.com/productsupport Customer Comment Line: 800-932-4992
Micron and the Micron logo are trademarks of Micron Technology, Inc.
All other trademarks are the property of their respective owners.
This data sheet contains minimum and maximum limits specified over the power supply and temperature range set forth herein.
Although considered final, these specifications are subject to change, as further product development and data characterization sometimes occur.
PDF: 09005aef80e2ff8d
htf8c32_64_128x64aypdf - Rev. G 3/10 EN
18
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
Similar pages