MT18JSF51272PDZ-1G6M1 Micron Technology Inc, MT18JSF51272PDZ-1G6M1 Datasheet - Page 18

• Manufacturer Part Number: MT18JSF51272PDZ-1G6M1
• Description: MODULE DDR3 SDRAM 4GB 240RDIMM
• Manufacturer: Micron Technology Inc
• Series: -r

Specifications of MT18JSF51272PDZ-1G6M1

• Memory Type: DDR3 SDRAM
• Memory Size: 4GB
• Speed: 1600MT/s
• Features: -
• Package / Case: 240-RDIMM
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

EVENT# Pin
PDF: 09005aef83d9afa1
js-z-f18c256_512x72pdz.pdf – Rev. D 9/10 EN
The temperature sensor also adds the EVENT# pin (open-drain). Not used by the SPD
EEPROM, EVENT# is a temperature sensor output used to flag critical events that can
be set up in the sensor’s configuration register.
EVENT# has three defined modes of operation: interrupt mode, compare mode, and
critical temperature mode. The open-drain output of EVENT# under the three separate
operating modes is illustrated below. Event thresholds are programmed in the 0x01 reg-
ister using a hysteresis. The alarm window provides a comparison window, with upper
and lower limits set in the alarm upper boundary register and the alarm lower boun-
dary register, respectively. When the alarm window is enabled, EVENT# will trigger
whenever the temperature is outside the MIN or MAX values set by the user.
The interrupt mode enables software to reset EVENT# after a critical temperature thresh-
old has been detected. Threshold points are set in the configuration register by the user.
This mode triggers the critical temperature limit and both the MIN and MAX of the tem-
perature window.
The compare mode is similar to the interrupt mode, except EVENT# cannot be reset by
the user and returns to the logic HIGH state only when the temperature falls below the
programmed thresholds.
Critical temperature mode triggers EVENT# only when the temperature has exceeded
the programmed critical trip point. When the critical trip point has been reached, the
temperature sensor goes into comparator mode, and the critical EVENT# cannot be
cleared through software.
Temperature Sensor with Serial Presence-Detect EEPROM
2GB, 4GB (x72, ECC, DR) 240-Pin DDR3 SDRAM RDIMM
18
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2010 Micron Technology, Inc. All rights reserved.