mt18htf25672pdz Micron Semiconductor Products, mt18htf25672pdz Datasheet
mt18htf25672pdz
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mt18htf25672pdz Summary of contents
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... DDR2 SDRAM RDIMM MT18HTF25672PDZ – 2GB For component data sheets, refer to Micron’s Web site: Features • 240-pin, registered dual in-line memory module • Fast data transfer rates: PC2-3200, PC2-4200, PC2-5300, or PC2-6400 • 2GB (256 Meg x 72) • Supports ECC error detection and correction • ...
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... Notes: 1. Data sheets for the base devices can be found on Micron’s Web site. 2. All part numbers end with a two-place code (not shown), designating component and PCB revisions. Consult factory for current revision codes. Example: MT18HTF25672PDZ-667H1. PDF: 09005aef83d3d893/Source: 09005aef83d3d8c1 htf18c256x72pdz.fm - Rev. A 11/09 EN ...
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Pin Assignments and Descriptions Table 4: Pin Assignments 240-Pin RDIMM Front Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin DQ19 61 REF ...
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... DDSPD V Supply Reference voltage: V REF V Supply Ground – No connect: These pins are not connected on the module. PDF: 09005aef83d3d893/Source: 09005aef83d3d8c1 htf18c256x72pdz.fm - Rev. A 11/09 EN 2GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM 2 C bus bus. . /2. DD Micron Technology, Inc., reserves the right to change products or specifications without notice. ...
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... Symbol Type Description NF – No function: These pins are connected within the module but provide no functionality. PDF: 09005aef83d3d893/Source: 09005aef83d3d8c1 htf18c256x72pdz.fm - Rev. A 11/09 EN 2GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM Pin Assignments and Descriptions Micron Technology, Inc., reserves the right to change products or specifications without notice. ...
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Functional Block Diagram Figure 2: Functional Block Diagram RS1# RS0# DQS0 DQS0# DM0/DQS9 NF/DQS9# DM/ RDQS DQ DQ0 DQ DQ1 DQ DQ2 DQ DQ3 DQ DQ4 DQ DQ5 DQ DQ6 DQ DQ7 DQS1 DQS1# DM1/DQS10 NF/DQS10# DM/ RDQS DQ8 DQ ...
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... General Description The MT18HTF25672PDZ DDR2 SDRAM module is a high-speed, CMOS, dynamic ran- dom-access 2GB memory module organized in a x72 configuration. This DDR2 SDRAM module use internally configured 8-bank 1Gb DDR2 SDRAM devices. DDR2 SDRAM modules use double data rate architecture to achieve high-speed opera- tion ...
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... Electrical Specifications Stresses greater than those listed in Table 6 may cause permanent damage to the DRAM devices on the module. This is a stress rating only, and functional operation of the mod- ule at these or any other conditions above 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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... Micron encourages designers to simulate the signal characteristics of the system’s mem- ory 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. ...
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... DD DD between valid commands; Address bus inputs are stable during deselects; Data bus inputs are switching Notes: 1. Value calculated as one module rank in this operating condition, all other module ranks in I DD2P 2. Value calculated reflects all module ranks in this operating condition. PDF: 09005aef83d3d893/Source: 09005aef83d3d8c1 htf18c256x72pdz ...
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... Timing and switching specifications for the register listed above are critical for proper operation of the DDR2 SDRAM registered DIMMs. These are meant subset of the parameters for the specific device used on the module. Detailed information for this regis- ter is available in JEDEC standard JESD82. ...
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Table 10: PLL Specifications CU877 device or equivalent JESD82-8.01 Parameter Symbol DC high-level input voltage V DC low-level input voltage V V Input voltage (limits high-level input voltage DC low-level input voltage V Input differential-pair cross V voltage ...
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Serial Presence-Detect Table 12: Serial Presence-Detect EEPROM DC Operating Conditions All voltages referenced to V Parameter/Condition Supply voltage Input high voltage: Logic 1; All inputs Input low voltage: Logic 0; All inputs Output low voltage 3mA OUT Input ...
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... TYP BACK VIEW U17 U16 U18 U19 U20 5.0 (0.197) TYP 63.0 (2.48) TYP Micron Technology, Inc., reserves the right to change products or specifications without notice. 14 Module Dimensions U11 U12 30.5 (1.2) 29.85 (1.175) 17.78 (0.7) TYP 10.0 (0.394) TYP PIN 120 U21 U22 PIN 121 ©2009 Micron Technology, Inc. All rights reserved. ...