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General Description
The MAX6604 high-precision temperature sensor is
designed for thermal monitoring functions in DDR memo-
ry modules. The device is readable and programmable
through the 2-wire SMBus/I
2
C-compatible interface.
Three address inputs set the bus address for the temper-
ature sensor to provide up to eight devices on one bus.
The internal thermal sensor continuously monitors the
temperature and updates the temperature data eight
times per second. The master can read the tempera-
ture data at any time. Since the thermal sensor is locat-
ed on the memory module, temperature data recorded
accurately represents the temperature of the compo-
nents on the module. Consequently, the MAX6604 pro-
vides a much more accurate measurement of module
temperature than techniques involving temperature
sensors on the motherboard. In addition, the device
responds more quickly to temperature changes on the
module than a motherboard sensor.
The MAX6604 also features an interrupt-output indica-
tor for temperature-threshold monitoring. The threshold
levels are programmable through the digital interface.
The MAX6604 operates from -20癈 to +125癈, and is
available in JEDEC-standard 8-pin TSSOP and 8-pin
TDFN (2mm x 3mm) packages.
Applications
Memory Modules
Desktop Computers
Notebook Computers
Workstations
Networking Equipment
Features
f JEDEC Compliant
f ?/SPAN>1?/SPAN>C Temperature-Monitoring Accuracy
f Overtemperature Interrupt with Programmable
Threshold
f +2.7V to +3.6V Operating Voltage Range
f SMBus/I
2
C-Compatible Interface
f 300?/SPAN>A Typical Operating Current
f 3?/SPAN>A Typical Shutdown Current
f -20?/SPAN>C to +125?/SPAN>C Operating Temperature Range
f 8-Pin TSSOP and 8-Pin TDFN (2mm x 3mm)
Packages
Precision Temperature Monitor for
DDR Memory Modules
________________________________________________________________ Maxim Integrated Products   1
Ordering Information
19-3837; Rev 3; 10/11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxims website at www.maxim-ic.com.
PART
SERIAL-
CLOCK
FREQUENCY
(kHz)
PIN-PACKAGE
SPECIAL
TOP
MARK
MAX6604AATA+
400
8 TDFN-EP*
(MO229-WCED-2)
AAR
MAX6604AAHA+
400
8 TSSOP

E
V
A
L
UA
T
IO
N
 
KI
T
A
V
A
IL
A
B
L
E
Typical Application Circuit appears at end of data sheet.
1
+
+
3
4
8
6
5
V
CC
SCL   SDA
MAX6604
MAX6604
2
7
EVENT
A0
A2   GND
EP
A1
TDFN
TSSOP
TOP VIEW
SCL
SDA
GND
1
2
8
7
V
CC
EVENT
A1
A2
A0
3
4
6
5
Pin Configurations
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Note: These devices operate over the -20?/SPAN>C to +125?/SPAN>C operat-
ing temperature range.
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相关代理商/技术参数
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