MT18HTF25672PZ Micron Semiconductor Products, MT18HTF25672PZ Datasheet
MT18HTF25672PZ
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MT18HTF25672PZ Summary of contents
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... DDR2 SDRAM RDIMM MT18HTF25672PZ – 2GB 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 • +1.8V DD DDQ • 1.7–3.6V DDSPD • ...
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... Data sheets 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. Con- sult factory for current revision codes. Example: MT18HTF25672PZ-667H1. PDF: 09005aef83dadad1 htf18c256x72pz.pdf - Rev. A 3/10 EN ...
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Pin Assignments Table 4: Pin Assignments 240-Pin RDIMM Front Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol DQ19 61 REF DQ0 ...
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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 5: ...
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Table 5: 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: 09005aef83dadad1 ...
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Functional Block Diagram Figure 2: Functional Block Diagram – 2GB RDIMM V SS RS0# DQS0 DQS0# DM CS# DQS DQS# DQ0 DQ DQ1 U1 DQ DQ2 DQ DQ3 DQ DQS1 DQS1# DM CS# DQS DQS# DQ8 DQ U2 DQ9 DQ ...
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General Description DDR2 SDRAM modules are high-speed, CMOS dynamic random access memory mod- ules 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 ...
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Electrical Specifications Table 6: Absolute Maximum Ratings Symbol Parameter supply voltage relative DDQ DD DDQ Voltage on any pin relative OUT Input leakage current; Any input 0V ...
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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 cor- relate with component speed grades. Table 7: Module and Component Speed Grades DDR2 ...
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I Specifications DD Table 8: DDR2 I Specifications and Conditions – 2GB DD Values shown for MT47H256M4 DDR2 SDRAM only and are computed from values specified in the 1Gb (256 Meg x 4) com- ponent data sheet Parameter Operating one ...
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Register and PLL Specifications Table 9: Register Specifications SSTU32866 devices or equivalent Parameter Symbol DC high-level V Control, command, IH(DC) input voltage DC low-level V Control, command, IL(DC) input voltage AC high-level V Control, command, IH(AC) input voltage AC low-level ...
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Table 10: 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 IH input voltage DC low-level V IL input voltage Input ...
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Serial Presence-Detect For the latest SPD data, refer to Micron's SPD page: www.micron.com/SPD. Table 12: 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 RDIMM 2.0 (0.079) R (4X 2.5 (0.098) D (2X) 2.3 (0.091) TYP Pin 1 2.21 (0.087) TYP 1.0 (0.039) TYP 1.0 (0.039) TYP 70.66 (2.782) 45° (4X) U13 U14 Pin 240 3.04 ...