MT18JSF25672PDY-1G1D1 Micron Technology Inc, MT18JSF25672PDY-1G1D1 Datasheet - Page 8

• Manufacturer Part Number: MT18JSF25672PDY-1G1D1
• Manufacturer: Micron Technology Inc

Specifications of MT18JSF25672PDY-1G1D1

• Main Category: DRAM Module
• Sub-category: DDR3 SDRAM
• Module Type: 240RDIMM
• Device Core Size: 72b
• Organization: 256Mx72
• Total Density: 2GByte
• Chip Density: 1Gb
• Maximum Clock Rate: 1.066GHz
• Operating Supply Voltage (typ): 1.5V
• Operating Current: 1.53A
• Number Of Elements: 18
• Operating Supply Voltage (max): 1.575V
• Operating Supply Voltage (min): 1.425V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Pin Count: 240
• Mounting: Socket
• Lead Free Status / RoHS Status: Compliant

Temperature Sensor with Serial Presence-Detect EEPROM
Thermal Sensor Operations
Serial Presence-Detect EEPROM Operation
PDF: 09005aef8304aded/Source: 09005aef8304ae2b
JSF18C256x72PD.fm - Rev. A 4/08 EN
The temperature from the integrated thermal sensor is monitored and converts into a
digital word via the I
to create a custom temperature-sensing solution based on system requirements.
Programming and configuration details comply with JEDEC standard no. 21-C, page
4.7-1, “Mobile Platform Memory Module Thermal Sensor Component Specification.”
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.” These bytes identify module-specific timing parameters, configuration infor-
mation, and physical attributes. User-specific information can be written into the
remaining 128 bytes of storage. System READ/WRITE operations between the master
(system logic) and the slave EEPROM device occur via a standard I
DIMM’s SCL (clock) and SDA (data) signals, together with SA[2:0], which provide eight
unique DIMM/EEPROM addresses. Write protect (WP) is connected to V
disabling hardware write protect.
2
C bus. System designers can use the user-programmable registers
2GB (x72, ECC, DR) 240-Pin DDR3 SDRAM RDIMM
8
Micron Technology, Inc., reserves the right to change products or specifications without notice.
General Description
©2008 Micron Technology, Inc. All rights reserved
2
C bus using the
SS
, permanently