MT16JSF25664H Micron Semiconductor Products, MT16JSF25664H Datasheet - Page 11

• Manufacturer Part Number: MT16JSF25664H
• Description: Ddr3 Sdram Sodimm
• Manufacturer: Micron Semiconductor Products

Temperature Sensor with Serial Presence-Detect EEPROM
Table 10:
Table 11:
EVENT# Pin
PDF: 09005aef83364b70/Source: 09005aef83364bd3
JSF16C256x64HZ.fm - Rev. A 5/08 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 (initial release)
Temperature sensor accuracy
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 12. 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.
2GB (x64, DR) 204-Pin Halogen-Free DDR3 SDRAM SODIMM
Temperature Sensor with Serial Presence-Detect EEPROM
11
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
–2.0
–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
+2.0
+1.0
300
900
100
50
–
–
–
–
–
–
+ 1
Units
Units
kHz
mA
µA
°C
°C
°C
µs
ns
ns
ns
µs
µs
µs
ns
µs
µs
V
V
V
V