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MT18JSF51272PDZ-1G6M1

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
Registering Clock Driver Specifications
Table 13: Registering Clock Driver Electrical Characteristics
SSTE32882 devices or equivalent
Parameter Symbol Pins Min Nom Max Units
DC supply voltage V
DD
–
1.425 1.5 1.575 V
DC reference voltage V
REF
–
0.49 × V
DD
- 20mV 0.5 × V
DD
0.51 × V
DD
+ 20mV V
DC termination
voltage
V
TT
–
0.49 × V
DD
- 20mV 0.5 × V
DD
0.51 × V
DD
+ 20mV V
AC high-level input
voltage
V
IH(AC)
Control, command,
address
V
REF
+ 175mV
–
V
DD
+ 400mV V
AC low-level input
voltage
V
IL(AC)
Control, command,
address
–0.4
–
V
REF
- 175mV V
DC high-level input
voltage
V
IH(DC)
Control, command,
address
V
REF
+ 100mV
–
V
DD
+ 0.4 V
DC low-level input
voltage
V
IL(DC)
Control, command,
address
–0.4
–
V
REF
- 100mV V
High-level input
voltage
V
IH(CMOS)
RESET#, MIRROR 0.65 × V
DD
–
V
DD
V
Low-level input
voltage
V
IL(CMOS)
RESET#, MIRROR 0
–
0.35 × V
DD
V
Differential input
crosspoint voltage
range
V
IX(AC)
CK, CK#, FBIN, FBIN# 0.5 × V
DD
- 175mV 0.5 × V
DD
0.5 × V
DD
+ 175mV V
Differential input
voltage
V
ID(AC)
CK, CK# 350
–
V
DD
+ TBD mV
High-level output
current
I
OH
Err_Out#
– –
TBD mA
Low-level output
current
I
OL
Err_Out# TBD
–
TBD mA
Note:
1. Timing and switching specifications for the register listed are critical for proper opera-
tion of the DDR3 SDRAM RDIMMs. These are meant to be a subset of the parameters for
the specific device used on the module.
2GB, 4GB (x72, ECC, DR) 240-Pin DDR3 SDRAM RDIMM
Registering Clock Driver Specifications
PDF: 09005aef83d9afa1
js-z-f18c256_512x72pdz.pdf – Rev. D 9/10 EN
16
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2010 Micron Technology, Inc. All rights reserved.
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 I
2
C bus shared with the SPD EEPROM.
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 Max Units
Supply voltage V
DDSPD
3.0 3.6 V
Supply current: V
DD
= 3.3V I
DD
–
2.0 mA
Input high voltage: Logic 1; SCL, SDA V
IH
1.45 V
DDSPD
+ 1 V
Input low voltage: Logic 0; SCL, SDA V
IL
–
0.55 V
Output low voltage: I
OUT
= 2.1mA V
OL
–
0.4 V
Input current I
IN
–5.0 5.0 µA
Temperature sensing range
–
–40 125 °C
Temperature sensor accuracy (class B)
–
–1.0 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
t
BUF 4.7
–
µs
SDA fall time
t
F 20 300 ns
SDA rise time
t
R
–
1000 ns
Data hold time
t
HD:DAT 200 900 ns
Start condition hold time
t
H:STA 4.0
–
µs
Clock HIGH period
t
HIGH 4.0 50 µs
Clock LOW period
t
LOW 4.7
–
µs
SCL clock frequency
t
SCL 10 100 kHz
Data setup time
t
SU:DAT 250
–
ns
Start condition setup time
t
SU:STA 4.7
–
µs
Stop condition setup time
t
SU:STO 4.0
–
µs
2GB, 4GB (x72, ECC, DR) 240-Pin DDR3 SDRAM RDIMM
Temperature Sensor with Serial Presence-Detect EEPROM
PDF: 09005aef83d9afa1
js-z-f18c256_512x72pdz.pdf – Rev. D 9/10 EN
17
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2010 Micron Technology, Inc. All rights reserved.
EVENT# Pin
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.
2GB, 4GB (x72, ECC, DR) 240-Pin DDR3 SDRAM RDIMM
Temperature Sensor with Serial Presence-Detect EEPROM
PDF: 09005aef83d9afa1
js-z-f18c256_512x72pdz.pdf – Rev. D 9/10 EN
18
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2010 Micron Technology, Inc. All rights reserved.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

MT18JSF51272PDZ-1G6M1

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Manufacturer:
Micron
Description:
MODULE DDR3 SDRAM 4GB 240RDIMM
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