MT18HTF25672AZ-80EH1 Micron Technology Inc, MT18HTF25672AZ-80EH1 Datasheet
MT18HTF25672AZ-80EH1
Specifications of MT18HTF25672AZ-80EH1
Related parts for MT18HTF25672AZ-80EH1
MT18HTF25672AZ-80EH1 Summary of contents
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... DDR2 SDRAM UDIMM MT18HTF12872AZ – 1GB MT18HTF25672AZ – 2GB MT18HTF51272AZ – 4GB Features • 240-pin, unbuffered dual in-line memory module • Fast data transfer rates: PC2-8500, PC2-6400, PC2-5300, PC2-4200, or PC2-3200 • 1GB (128 Meg x 72), 2GB (256 Meg x 72), 4GB (512 Meg x 72) • ...
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... The data sheet for the base device can be found on Micron’s Web site. Notes: 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: MT18HTF25672AZ-667H1. PDF: 09005aef83c6d17f htf18c128_256_512x72az.fm - Rev. C 12/10 EN ...
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Pin Assignments Table 6: Pin Assignments 240-Pin UDIMM Front Pin Symbol Pin Symbol Pin DQ19 61 REF DQ0 33 DQ24 63 4 DQ1 34 DQ25 ...
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... 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 Ax Input BAx Input ...
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Table 7: Pin Descriptions (Continued) Symbol Type SDA I/O RDQSx, Output RDQS#x Err_Out# Output (open drain Supply DD DDQ V Supply DDSPD V Supply REF V Supply SS – NC – NF – NU – RFU PDF: 09005aef83c6d17f ...
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Functional Block Diagram Figure 2: Functional Block Diagram S1# S0 DQS0 DQS0 DM0 DQ0 DQ DQ1 DQ DQ2 DQ DQ3 DQ DQ4 DQ DQ5 DQ DQ6 DQ DQ7 DQ DQS1# DQS1 DM1 DM DQ8 DQ DQ9 ...
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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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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 ...
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... Design Considerations Simulations Micron memory modules are designed to optimize signal integrity through carefully de- signed terminations, controlled board impedances, routing topologies, trace length matching, and decoupling. However, good signal integrity starts at the system level. Mi- cron encourages designers to simulate the signal characteristics of the system's memo- ry bus to ensure adequate signal integrity of the entire memory system ...
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IDD Specifications Table 10: DDR2 I Specifications and Conditions – 1GB (Die Revision G) DD Values shown for MT47H64M8 DDR2 SDRAM only and are computed from values specified in the 512Mb (64 Meg x 8) component data sheet Parameter Operating ...
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Table 10: DDR2 I Specifications and Conditions – 1GB (Die Revision G) (Continued) DD Values shown for MT47H64M8 DDR2 SDRAM only and are computed from values specified in the 512Mb (64 Meg x 8) component data sheet Parameter Operating bank ...
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Table 11: DDR2 I Specifications and Conditions – 2GB (Die Revisions E and G) (Continued) DD Values shown for MT47H128M8 DDR2 SDRAM only and are computed from values specified in the 1Gb (128 Meg x 8) com- ponent data sheet ...
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Table 12: DDR2 I Specifications and Conditions – 2GB (Die Revision H) (Continued) DD Values shown for MT47H128M8 DDR2 SDRAM only and are computed from values specified in the 1Gb (128 Meg x 8) com- ponent data sheet Parameter Active ...
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Table 13: DDR2 I Specifications and Conditions – 4GB (Die Revision C) (Continued) DD Values shown for MT47H256M8 DDR2 SDRAM only and are computed from values specified in the 2Gb (256 Meg x 8) com- ponent data sheet Parameter Precharge ...
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Serial Presence-Detect For the latest SPD data, refer to Micron's SPD page: www.micron.com/SPD. Table 14: SPD EEPROM Operating Conditions Parameter/Condition Supply voltage Input high voltage: logic 1; All inputs Input low voltage: logic 0; All inputs Output low voltage: I ...
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Module Dimensions Figure 3: 240-Pin DDR2 UDIMM 2.0 (0.079) R (4X 2.5 (0.098) D (2X) 2.3 (0.091) TYP Pin 1 2.2 (0.087) TYP 1.0 (0.039) TYP 1.0 (0.039) TYP 70.68 (2.78) TYP 45° (4X) U11 U12 3.05 (0.12) ...