MT18HTS25672RHZ-80EH1 Micron Technology Inc, MT18HTS25672RHZ-80EH1 Datasheet - Page 14

• Manufacturer Part Number: MT18HTS25672RHZ-80EH1
• Description: MODULE DDR2 SDRAM 2GB 200SORDIMM
• Manufacturer: Micron Technology Inc
• Series: -r

Specifications of MT18HTS25672RHZ-80EH1

• Memory Type: DDR2 SDRAM
• Memory Size: 2GB
• Speed: 800MT/s
• Features: -
• Package / Case: 200-SORDIMM
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Temperature Sensor with Serial Presence-Detect EEPROM
Table 12: Temperature Sensor with Serial Presence-Detect EEPROM Operating Conditions
Table 13: Sensor and EEPROM Serial Interface Timing
EVENT# Pin
PDF: 09005aef83f287c1
hts18c256x72rhz.pdf - Rev. A 3/10 EN
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)
Parameter/Condition
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
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 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.
Temperature Sensor with Serial Presence-Detect EEPROM
2GB (x72, ECC, DR) 200-Pin DDR2 SDRAM SORDIMM
t
Symbol
Symbol
t
t
t
HD:DAT
SU:DAT
V
t
SU:STO
SU:STA
t
t
H:STA
t
HIGH
LOW
t
DDSPD
V
BUF
I
V
V
SCL
14
I
t
DD
t
–
–
IN
OL
R
F
IH
IL
2
C bus shared with the SPD EEPROM.
Micron Technology, Inc. reserves the right to change products or specifications without notice.
+1.45
Min
Min
+3.0
–5.0
–1.0
200
250
–40
4.7
4.0
4.0
4.7
4.7
4.0
20
10
–
–
–
–
V
DDSPD
+0.55
+125
Max
Max
1000
+3.6
+2.0
+0.4
+5.0
+1.0
300
900
100
© 2010 Micron Technology, Inc. All rights reserved.
50
–
–
–
–
–
–
+ 1
Units
Units
kHz
mA
µA
°C
°C
µs
ns
ns
ns
µs
µs
µs
ns
µs
µs
V
V
V
V