mt18jsf25672pdy-1g1 Micron Semiconductor Products, mt18jsf25672pdy-1g1 Datasheet
mt18jsf25672pdy-1g1
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mt18jsf25672pdy-1g1 Summary of contents
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... For component data sheets, refer to Micron’s Web site: Features • DDR3 functionality and operations supported as per the component data sheet • 240-pin, registered dual in-line memory module (RDIMM) • Fast data transfer rates: PC3-10600, PC3-8500, or PC3-6400 • 2GB (256 Meg x 72) • ...
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... The data sheet for the base device can be found on Micron’s Web site. 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: MT18JSF25672PDY-1G1D1. PDF: 09005aef8304aded/Source: 09005aef8304ae2b JSF18C256x72PD.fm - Rev. A 4/08 EN ...
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Pin Assignments and Descriptions Table 5: Pin Assignments 240-Pin DDR3 RDIMM Front Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol Pin Symbol DQ25 61 REF ...
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... Input with write data. Center-aligned with write data. SDA I/O Serial data: SDA is a bidirectional pin used to transfer addresses and data into and out of the temperature sensor/SPD EEPROM on the module on the I PDF: 09005aef8304aded/Source: 09005aef8304ae2b JSF18C256x72PD.fm - Rev. A 4/08 EN 2GB (x72, ECC, DR) 240-Pin DDR3 SDRAM RDIMM Pin Assignments and Descriptions A[13:0] address the 1Gb DDR3 devices ...
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... Termination voltage: Used for control, command, and address ( – No connect: These pins are not connected on the module. NU – Not used: These pins are not used in specific module configuration/operations. PDF: 09005aef8304aded/Source: 09005aef8304ae2b JSF18C256x72PD.fm - Rev. A 4/08 EN 2GB (x72, ECC, DR) 240-Pin DDR3 SDRAM RDIMM Pin Assignments and Descriptions . DD /2) ...
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Functional Block Diagram Figure 2: Functional Block Diagram RS1# RS0# DQS0 DQS0# DM0/DQS9 NU/TDQS9# DM/ NU/ CS# DQS DQS# TRDQS TRDQS# DQ DQ0 DQ DQ1 DQ DQ2 DQ DQ3 DQ DQ4 DQ DQ5 DQ6 DQ DQ DQ7 ...
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... DRAM is connected to a single trace and terminated (rather than a tree structure, where the termination is off the module near the connector). Inherent to fly-by topology, the timing skew between the clock and DQS signals can be easily accounted for by using the write leveling feature of DDR3 ...
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... Platform Memory Module Thermal Sensor Component Specification.” Serial Presence-Detect EEPROM Operation DDR3 SDRAM modules incorporate serial presence-detect. The SPD data is stored in a 256-byte EEPROM. The first 128 bytes are programmed by Micron to comply with JEDEC specification JC-45 “Appendix X: Serial Presence Detect (SPD) for DDR3 SDRAM Modules.” ...
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... Electrical Specifications Stresses greater than those listed in Table 7 may cause permanent damage to the module. This is a stress rating only, and functional operation of the module at these or any other conditions 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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... Micron encourages designers to simulate the signal characteristics of the system’s memory 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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... Refresh current Self refresh temperature current: MAX T Self refresh temperature current (SRT-enabled): MAX T All banks interleaved read current Notes: 1. One module rank in the active I 2. All ranks in this I PDF: 09005aef8304aded/Source: 09005aef8304ae2b JSF18C256x72PD.fm - Rev. A 4/08 EN 2GB (x72, ECC, DR) 240-Pin DDR3 SDRAM RDIMM = 85° ...
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... Notes: 1. Timing and switching specifications for the register listed above are critical for proper oper- ation of the DDR3 SDRAM RDIMMs. These are meant subset of the parameters for the specific device used on the module. PDF: 09005aef8304aded/Source: 09005aef8304ae2b JSF18C256x72PD.fm - Rev. A 4/08 EN 2GB (x72, ECC, DR) 240-Pin DDR3 SDRAM RDIMM ...
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... Temperature Sensor with Serial Presence-Detect EEPROM The temperature sensor continuously monitors the module’s temperature and can be read back at any time over the I Table 12: Temperature Sensor with Serial Presence-Detect EEPROM Operating Conditions Parameter/Condition Supply voltage Supply current 3.3V DD Input high voltage: Logic 1; SCL, SDA Input low voltage: Logic 0 ...
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The compare mode is similar to the interrupt mode, except EVENT# cannot be reset by the user and only returns to the logic HIGH state when the temperature falls below the programmed thresholds. Critical temperature mode triggers EVENT# only when ...
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Table 14: Temperature Sensor Registers Name Pointer register Capability register Configuration register Alarm temperature upper boundary register Alarm temperature lower boundary register Critical temperature register Temperature register Pointer Register The pointer register selects which of the 16-bit registers is being ...
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Table 18: Capability Register Bit Descriptions Bit Description 0 Basic capability 1: Has alarm and critical trip point capabilities 1 Accuracy 0: ±2°C over the active range and ±3°C over the monitor range 1: ±1°C over the active range and ...
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Table 20: Configuration Register Bit Descriptions (continued) Bit Description 5 Clear event 0: No effect 1: Clears the event when the temperature sensor is in the interrupt mode 6 Alarm window lock bit 0: Alarm trips are not locked and ...
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Table 21: Hysteresis Temperature Condition Gradient Sets Falling Clears Rising Temperature Format The temperature trip point registers and temperature readout register use a “2’s complement” format to enable negative numbers. The least significant bit (LSB) is equal to 0.0625°C or ...
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Temperature Register The temperature register is a read-only register that provides the current temperature detected by the temperature sensor. The LSB for this register is 0.0625°C with a resolu- tion of 0.0625°C. The most significant bit (MSB) is 128°C in ...
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... 0.76 (0.03) R 1.0 (0.039) 0.80 (0.031) TYP TYP 123.0 (4.84) TYP 1.0 (0.039) R (8X) Back view U14 U15 U17 U18 U19 5.0 (0.197) TYP 71.0 (2.79) 47.0 (1.85) TYP TYP Module With Heat Spreader Attached U14 U14 U14 U U U15 U17 U18 8 U19 U19 U19 tive owners ...