mt18lsdt3272g-10e Micron Semiconductor Products, mt18lsdt3272g-10e Datasheet - Page 7

• Manufacturer Part Number: mt18lsdt3272g-10e
• Description: 256mb, 512mb, 1gb X72, Ecc, Sr 168-pin Sdram Rdimm
• Manufacturer: Micron Semiconductor Products

Serial Presence-Detect Operation
PDF: 09005aef809b161a/Source: 09005aef809b15eb
SD18C32_64_128x72.fm - Rev. E 1/08 EN
SDRAM modules incorporate serial presence-detect (SPD). The SPD function is imple-
mented using a 2,048-bit EEPROM. This nonvolatile storage device contains 256 bytes.
The first 128 bytes are programmed by Micron to identify the module type and various
SDRAM organizations and timing parameters. The remaining 128 bytes of storage are
available for use by the customer. System READ/WRITE operations between the master
(system logic) and the slave EEPROM device (DIMM) occur via a standard I
the DIMM’s SCL (clock) and SDA (data) signals, together with SA (2:0), which provide
eight unique DIMM/EEPROM addresses. Write protect (WP) is tied to V
module, permanently disabling hardware write protect.
256MB, 512MB, 1GB (x72, ECC, SR): 168-Pin SDRAM RDIMM
7
Micron Technology, Inc., reserves the right to change products or specifications without notice.
General Description
©2003 Micron Technology, Inc. All rights reserved
SS
on the
2
C bus using