8GB (x72, ECC, DR) 240-Pin DDR3 VLP RDIMM
Temperature Sensor with Serial Presence-Detect EEPROM
Temperature Sensor with Serial Presence-Detect EEPROM
The temperature sensor continuously monitors the module's temperature and can be
read back at any time over the I2C bus shared with the SPD EEPROM. Refer to JEDEC
standard No. 21-C page 4.7-1, "Definition of the TSE2002av, Serial Presence Detect with
Temperature Sensor."
Serial Presence-Detect
For the latest SPD data, refer to Micron's SPD page: www.micron.com/SPD.
Table 14: Temperature Sensor with SPD EEPROM Operating Conditions
Parameter/Condition
Symbol
Min
3.0
–
Max
3.6
Units
V
Supply voltage
VDDSPD
IDD
VIH
VIL
VOL
IIN
Supply current: VDD = 3.3V
Input high voltage: Logic 1; SCL, SDA
Input low voltage: Logic 0; SCL, SDA
Output low voltage: IOUT = 2.1mA
Input current
2.0
mA
V
1.45
–
VDDSPD + 1
0.55
0.4
V
–
V
–5.0
–40
–1.0
5.0
µA
°C
Temperature sensing range
Temperature sensor accuracy (class B)
–
125
–
1.0
°C
Table 15: Temperature Sensor and EEPROM Serial Interface Timing
Parameter/Condition
Symbol
Min
Max
Units
Time bus must be free before a new transition can
start
tBUF
4.7
–
µs
SDA fall time
tF
tR
20
–
300
1000
900
–
ns
ns
SDA rise time
Data hold time
tHD:DAT
tH:STA
tHIGH
tLOW
200
4.0
4.0
4.7
10
ns
Start condition hold time
Clock HIGH period
Clock LOW period
SCL clock frequency
Data setup time
µs
50
–
µs
µs
tSCL
100
–
kHz
ns
tSU:DAT
tSU:STA
tSU:STO
250
4.7
4.0
Start condition setup time
Stop condition setup time
–
µs
–
µs
PDF: 09005aef8482a8a7
jdf18c1gx72pdz.pdf – Rev. D 12/12 EN
Micron Technology, Inc. reserves the right to change products or specifications without notice.
17
© 2011 Micron Technology, Inc. All rights reserved.
MICRON [ MICRON TECHNOLOGY ]
