mt18htf6472ay Micron Semiconductor Products, mt18htf6472ay Datasheet

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mt18htf6472ay

Manufacturer Part Number
mt18htf6472ay
Description
Ddr2 Sdram Udimm
Manufacturer
Micron Semiconductor Products
Datasheet
DDR2 SDRAM UDIMM
MT18HTF6472AY – 512MB
MT18HTF12872AY – 1GB
MT18HTF25672AY – 2GB
MT18HTF51272AY – 4GB
Features
• 240-pin, unbuffered dual in-line memory module
• Fast data transfer rates: PC2-6400, PC2-5300,
• 512MB (64 Meg x 72), 1GB (128 Meg x 72),
• V
• V
• 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
• Programmable CAS latency (CL)
• Posted CAS additive latency (AL)
• WRITE latency = READ latency - 1
• 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
• Dual rank
Table 1: Key Timing Parameters
PDF: 09005aef80e8ad4d
htf18c64_128_256_512x72ay – Rev. I 3/10 EN
PC2-4200, or PC2-3200
2GB (256 Meg x 72), 4GB (512 Meg x 72)
operation
Speed
Grade
DD
DDSPD
-80E
-800
-667
-53E
-40E
= V
DDQ
= 1.7–3.6V
1.8V
Products and specifications discussed herein are subject to change by Micron without notice.
Nomenclature
Industry
PC2-6400
PC2-6400
PC2-5300
PC2-4200
PC2-3200
512MB, 1GB, 2GB, 4GB (x72, DR) 240-Pin DDR2 SDRAM UDIMM
t
CK
CL = 6
800
800
CL = 5
Data Rate (MT/s)
800
667
667
1
Figure 1: 240-Pin UDIMM (MO-237 R/C G or RC/ B)
Module Height: 30mm (1.181in.)
CL = 4
Options
• Operating temperature
• Package
• Frequency/CL
533
533
553
553
400
Notes:
– Commercial (0°C ≤ T
– Industrial (–40°C ≤ T
– 240-pin DIMM (lead-free)
– 2.5ns @ CL = 5 (DDR2-800)
– 2.5ns @ CL = 6 (DDR2-800)
– 3ns @ CL = 5 (DDR2-667)
– 3.75ns @ CL = 4 (DDR2-533
– 5.0ns @ CL = 3 (DDR2-400)
Micron Technology, Inc. reserves the right to change products or specifications without notice.
1. Contact Micron for industrial temperature
2. CL = CAS (READ) latency.
3. Not available only in 512MB module density.
CL = 3
400
400
400
400
400
module offerings.
2
t
(ns)
12.5
RCD
15
15
15
15
A
A
≤ +85°C)
≤ +70°C)
© 2003 Micron Technology, Inc. All rights reserved.
3
3
1
(ns)
12.5
t
15
15
15
15
RP
Features
Marking
None
-80E
-53E
-40E
-800
-667
(ns)
t
55
55
55
55
55
Y
RC
I

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mt18htf6472ay Summary of contents

Page 1

... DR) 240-Pin DDR2 SDRAM UDIMM DDR2 SDRAM UDIMM MT18HTF6472AY – 512MB MT18HTF12872AY – 1GB MT18HTF25672AY – 2GB MT18HTF51272AY – 4GB Features • 240-pin, unbuffered dual in-line memory module • Fast data transfer rates: PC2-6400, PC2-5300, PC2-4200, or PC2-3200 • ...

Page 2

... DDR2 SDRAM Module 3 Part Number Density MT18HTF12872A(I)Y-80E__ MT16HTF12872A(I)Y-800__ MT16HTF12872A(I)Y-667__ MT16HTF12872A(I)Y-56E__ MT16HTF12872A(I)Y-40E__ Table 5: Part Numbers and Timing Parameters – 2GB Modules 2 Base device: MT47H128M82, 1Gb DDR2 SDRAM Module 3 Part Number Density MT16HTF25672A(I)Y-80E__ MT16HTF25672A(I)Y-800__ MT16HTF25672A(I)Y-667__ ...

Page 3

... DR) 240-Pin DDR2 SDRAM UDIMM Table 6: Part Numbers and Timing Parameters – 4GB Modules 2 Base device: MT47H256M82, 2Gb DDR2 SDRAM Module 3 Part Number Density MT16HTF51272A(I)Y-667__ MT16HTF51272A(I)Y-53E__ MT16HTF51272A(I)Y-667__ MT16HTF51272A(I)Y-53E__ MT16HTF51272A(I)Y-40E__ 1. Contact factory for availability. ...

Page 4

DR) 240-Pin DDR2 SDRAM UDIMM Pin Assignments Table 7: Pin Assignments 240-Pin UDIMM Front Pin Symbol Pin Symbol Pin DQ19 61 REF DQ0 33 ...

Page 5

... DR) 240-Pin DDR2 SDRAM UDIMM 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 8: Pin Descriptions ...

Page 6

... SPD EEPROM power supply: 1.7–3.6V. Reference voltage: V /2. DD Ground. No connect: These pins are not connected on the module. No function: These pins are connected within the module, but provide no functionality. Not used: These pins are not used in specific module configurations/operations. Reserved for future use. 6 Pin Descriptions and V ...

Page 7

DR) 240-Pin DDR2 SDRAM UDIMM Functional Block Diagram Figure 2: Functional Block Diagram S1# S0 DQS0 DQS0 DM0 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQS1# DQS1 DM1 DQ8 DQ9 ...

Page 8

... DRAM core and eight corresponding n-bit-wide, one-half-clock-cycle data trans- fers 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 ...

Page 9

... DR) 240-Pin DDR2 SDRAM UDIMM 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 condi- tions outside those indicated in the device data sheet are not implied. Exposure to absolute maximum rating conditions for extended periods may adversely affect reliability ...

Page 10

... Component specifications are available on Micron's Web site. Module speed grades cor- relate with component speed grades. Table 10: 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 -1GA ...

Page 11

DR) 240-Pin DDR2 SDRAM UDIMM I Specifications DD Table 11: DDR2 I Specifications and Conditions – 512MB DD Values shown for MT47H32M8 DDR2 SDRAM only and are computed from values specified in the 256Mb (32 ...

Page 12

... DD DD HIGH between valid commands; Address bus inputs are stable during deselects; Data bus inputs are switching 1. Value calculated as one module rank in this operating condition; all other module ranks Notes: 2. Value calculated reflects all module ranks in this operating condition. PDF: 09005aef80e8ad4d htf18c64_128_256_512x72ay – ...

Page 13

DR) 240-Pin DDR2 SDRAM UDIMM Table 12: DDR2 I Specifications and Conditions – 1GB DD Values shown for MT47H64M8 DDR2 SDRAM only and are computed from values specified in the 512Mb (64 Meg x 8) ...

Page 14

... DD HIGH HIGH between valid commands; Address bus inputs are stable during deselects; Data bus inputs are switching 1. Value calculated as one module rank in this operating condition; all other module ranks Notes: 2. Value calculated reflects all module ranks in this operating condition. PDF: 09005aef80e8ad4d htf18c64_128_256_512x72ay – ...

Page 15

DR) 240-Pin DDR2 SDRAM UDIMM Table 13: DDR2 I Specifications and Conditions (Die Revision A) – 2GB DD Values shown for MT47H128M8 DDR2 SDRAM only and are computed from values specified in the 1Gb (128 ...

Page 16

... DD HIGH HIGH between valid commands; Address bus inputs are stable during deselects; Data bus inputs are switching 1. Value calculated as one module rank in this operating condition; all other module ranks Notes: 2. Value calculated reflects all module ranks in this operating condition. PDF: 09005aef80e8ad4d htf18c64_128_256_512x72ay – ...

Page 17

DR) 240-Pin DDR2 SDRAM UDIMM Table 14: DDR2 I Specifications and Conditions (Die Revision E) – 2GB DD Values shown for MT47H128M8 DDR2 SDRAM only and are computed from values specified in the 1Gb (128 ...

Page 18

... DD HIGH HIGH between valid commands; Address bus inputs are stable during deselects; Data bus inputs are switching 1. Value calculated as one module rank in this operating condition; all other module ranks Notes: 2. Value calculated reflects all module ranks in this operating condition. PDF: 09005aef80e8ad4d htf18c64_128_256_512x72ay – ...

Page 19

DR) 240-Pin DDR2 SDRAM UDIMM Table 15: DDR2 I Specifications and Conditions – 4GB DD Values shown for MT47H256M8 DDR2 SDRAM only and are computed from values specified in the 2Gb (256 Meg x 8) ...

Page 20

... DD HIGH HIGH between valid commands; Address bus inputs are stable during deselects; Data bus inputs are switching 1. Value calculated as one module rank in this operating condition; all other module ranks Notes: 2. Value calculated reflects all module ranks in this operating condition. PDF: 09005aef80e8ad4d htf18c64_128_256_512x72ay – ...

Page 21

DR) 240-Pin DDR2 SDRAM UDIMM Serial Presence-Detect For the latest SPD data, refer to Micron's SPD page: www.micron.com/SPD. Table 16: SPD EEPROM Operating Conditions Parameter/Condition Supply voltage Input high voltage: logic 1; All inputs Input ...

Page 22

... TYP BACK VIEW U13 U14 U15 U16 5.0 (0.197) TYP 63.0 (2.48) TYP additional design dimensions. times occur. 22 Module Dimensions 17.78 (0.7) TYP 10.0 (0.394) TYP PIN 120 U17 U18 U19 PIN 121 Micron Technology, Inc. reserves the right to change products or specifications without notice. ...

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