MT18JSF25672PDY-1G4D1 Micron Technology Inc, MT18JSF25672PDY-1G4D1 Datasheet - Page 13
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MT18JSF25672PDY-1G4D1
Manufacturer Part Number
MT18JSF25672PDY-1G4D1
Description
Manufacturer
Micron Technology Inc
Datasheet
1.MT18JSF25672PDY-1G4D1.pdf
(20 pages)
Specifications of MT18JSF25672PDY-1G4D1
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
1.333GHz
Operating Supply Voltage (typ)
1.5V
Operating Current
1.89A
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
Table 12:
Table 13:
EVENT# Pin
PDF: 09005aef8304aded/Source: 09005aef8304ae2b
JSF18C256x72PD.fm - Rev. A 4/08 EN
Parameter/Condition
Parameter/Condition
Supply voltage
Supply current: V
Input high voltage: Logic 1; SCL, SDA
Input low voltage: Logic 0; SCL, SDA
Output low voltage: I
Input current
Temperature sensing range
Temperature sensor accuracy (class B)
Time bus must be free before a new transition can start
SDA fall time
SDA rise time
Data hold time
Start condition hold time
Clock HIGH period
Clock LOW period
SCL clock frequency
Data setup time
Start condition setup time
Stop condition setup time
Temperature Sensor with Serial Presence-Detect EEPROM Operating Conditions
Sensor and EEPROM Serial Interface Timing
DD
= 3.3V
OUT
= 2.1mA
The temperature sensor continuously monitors the module’s temperature and can be
read back at any time over the I
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 in Figure 3 on page 14. Event thresholds are programmed
in the 0x01 register 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 boundary 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
threshold 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
temperature window.
Temperature Sensor with Serial Presence-Detect EEPROM
2GB (x72, ECC, DR) 240-Pin DDR3 SDRAM RDIMM
13
2
C bus shared with the SPD EEPROM.
t
Symbol
Symbol
t
t
t
HD:DAT
V
SU:DAT
t
SU:STO
SU:STA
t
t
H:STA
Micron Technology, Inc., reserves the right to change products or specifications without notice.
t
HIGH
DDSPD
LOW
f
V
BUF
I
V
V
SCL
I
DD
t
t
IN
–
–
OL
R
IH
F
IL
+1.45
Min
+3.0
Min
–5.0
–1.0
–40
200
250
4.7
4.0
4.0
4.7
4.7
4.0
20
10
–
–
–
–
©2008 Micron Technology, Inc. All rights reserved
V
DDSPD
+0.55
1,000
+125
Max
Max
+3.6
+2.0
+0.4
+5.0
+1.0
300
900
100
50
–
–
–
–
–
–
+ 1
Units
Units
kHz
mA
µA
°C
°C
µs
ns
ns
ns
µs
µs
µs
ns
µs
µs
V
V
V
V