mt18htf25672pdy Micron Semiconductor Products, mt18htf25672pdy Datasheet
mt18htf25672pdy
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mt18htf25672pdy Summary of contents
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... ECC, DR) 240-Pin DDR2 SDRAM RDIMM DDR2 SDRAM RDIMM MT18HTF6472PDY – 512MB MT18HTF12872PDY – 1GB MT18HTF25672PDY – 2GB Features • 240-pin, registered dual in-line memory module • Fast data transfer rates: PC2-3200, PC2-4200, PC2-5300, or PC2-6400 • 512MB (64 Meg x 72), 1GB (128 Meg x 72), or 2GB (256 Meg x 72) • ...
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... ECC, DR) 240-Pin DDR2 SDRAM RDIMM Table 2: Addressing Parameter Refresh count Row address Device bank address Device configuration 256Mb (32 Meg x 8) Column address Module rank address Table 3: Part Numbers and Timing Parameters – 512B 1 Base device: MT47H32M8, 256Mb DDR2 SDRAM Module 2 Part Number Density ...
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ECC, DR) 240-Pin DDR2 SDRAM RDIMM Pin Assignments Table 6: Pin Assignments 240-Pin RDIMM Front Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol DQ19 61 ...
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ECC, DR) 240-Pin DDR2 SDRAM RDIMM Table 6: Pin Assignments (Continued) 240-Pin RDIMM Front Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol 28 DQS2 ...
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... ECC, DR) 240-Pin DDR2 SDRAM RDIMM 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 ...
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... 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 ...
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ECC, DR) 240-Pin DDR2 SDRAM RDIMM Functional Block Diagram Figure 2: Functional Block Diagram RS1# RS0# DQS0 DQS0# DM0/DQS9 NC/DQS9# DM/ RDQS DQ DQ0 DQ1 DQ DQ DQ2 DQ3 DQ DQ DQ4 DQ DQ5 DQ DQ6 ...
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... 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 ...
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... ECC, DR) 240-Pin DDR2 SDRAM RDIMM 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 each device's data sheet is not implied. Exposure to absolute maximum rating conditions for extended periods may adversely affect reliability ...
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... Component specifications are available on Micron's Web site. Module speed grades cor- relate 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 -1GA ...
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ECC, DR) 240-Pin DDR2 SDRAM RDIMM I Specifications DD Table 10: DDR2 I Specifications and Conditions – 512MB DD Values shown for MT47H32M8 DDR2 SDRAM only and are computed from values specified in the 256Mb (32 ...
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... DD is HIGH between valid commands; Address bus inputs are stable during dese- lects; 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: 09005aef80e935cd htf18c64_128_256x72pdy ...
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ECC, DR) 240-Pin DDR2 SDRAM RDIMM Table 11: 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) ...
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... 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: 09005aef80e935cd htf18c64_128_256x72pdy ...
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ECC, DR) 240-Pin DDR2 SDRAM RDIMM Table 12: 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 ...
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... DD is HIGH between valid commands; Address bus inputs are stable during dese- lects; 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: 09005aef80e935cd htf18c64_128_256x72pdy ...
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ECC, DR) 240-Pin DDR2 SDRAM RDIMM Table 13: 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 ...
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... 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: 09005aef80e935cd htf18c64_128_256x72pdy ...
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... RESET 1.8V DD RESET tion of the DDR2 SDRAM RDIMMs. These are meant subset of the parameters for the specific device used on the module. Detailed information for this register is available in JEDEC standard JESD82. 19 Register and PLL Specifications Min V + 125 V REF(DC) DDQ ...
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ECC, DR) 240-Pin DDR2 SDRAM RDIMM Table 15: PLL Specifications CU877 device or equivalent Parameter Symbol DC high-level V IH input voltage DC low-level V IL input voltage Input voltage (limits high-level V ...
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ECC, DR) 240-Pin DDR2 SDRAM RDIMM Serial Presence-Detect For the latest SPD data, refer to Micron's SPD page: www.micron.com/SPD. Table 17: SPD EEPROM Operating Conditions Parameter/Condition Supply voltage Input high voltage: logic 1; All inputs Input ...
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... TYP Back view U17 U15 U16 U18 U19 5.0 (0.197) TYP 63.0 (2.48) TYP complete design dimensions. times occur. 22 Module Dimensions U10 U11 U12 17.78 (0.700) TYP 10.00 (0.394) TYP Pin 120 U20 U21 U22 Pin 121 Micron Technology, Inc. reserves the right to change products or specifications without notice. ...