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MAX7500-MAX7502 Datasheet(PDF) 1 Page - Maxim Integrated Products

Part No. MAX7500-MAX7502
Description  Digital Temperature Sensors and Thermal Watchdog with Bus Lockup Protection
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX7500-MAX7502 Datasheet(HTML) 1 Page - Maxim Integrated Products

 
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General Description
The MAX7500/MAX7501/MAX7502 temperature sen-
sors accurately measure temperature and provide an
over-temperature alarm/interrupt/shutdown output.
These devices convert the temperature measurements
to digital form using a high-resolution, sigma-delta, ana-
log-to-digital converter (ADC). Communication is
through an I2C
-compatible 2-wire serial interface. The
MAX7500/MAX7501/MAX7502 integrate a timeout fea-
ture that offers protection against I2C bus lockups.
The 2-wire serial interface accepts standard write byte,
read byte, send byte, and receive byte commands to
read the temperature data and configure the behavior
of the open-drain over-temperature shutdown output.
The MAX7500 features three address select lines, while
the MAX7501 and MAX7502 feature two address select
lines and a RESET input. The MAX7500/MAX7501/
MAX7502s’ 3.0V to 5.5V supply voltage range, low
250µA supply current, and a lockup-protected I2C-
compatible interface make them ideal for a wide range
of applications, including personal computers (PCs),
electronic test equipment, and office electronics.
The MAX7500/MAX7501/MAX7502 are available in 8-
pin µMAX® and SO packages and operate over the
-55°C to +125°C temperature range.
Applications
PCs
Servers
Office Electronics
Electronic Test Equipment
Industrial Process Control
Features
o Timeout Prevents Bus Lockup
o I2C Bus Interface
o 3.0V to 5.5V Supply Voltage Range
o 250µA (typ) Operating Supply Current
o 3µA (typ) Shutdown Supply Current
o ±2°C (max) from -25°C to +100°C Temperature
Accuracy
o µMAX, SO Packages Save Space
o Separate Open-Drain OS Output Operates as
Interrupt or Comparator/Thermostat Input
o Register Readback Capability
o Improved LM75 Second Source
Digital Temperature Sensors and Thermal
Watchdog with Bus Lockup Protection
________________________________________________________________ Maxim Integrated Products
1
1
2
3
4
8
7
6
5
+VS
A0
A1
A2
GND
OS
SCL
SDA
MAX7500
µMAX, SO
1
2
3
4
8
7
6
5
+VS
A0
A1
RESET
GND
OS
SCL
SDA
MAX7501
MAX7502
µMAX, SO
TOP VIEW
Pin Configurations
Ordering Information
19-3382; Rev 1; 10/04
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
PART
TEMP RANGE
PIN-PACKAGE
MAX7500MSA
-55°C to +125°C
8 SO
MAX7500MUA
-55°C to +125°C
8 µMAX
MAX7501MSA
-55°C to +125°C
8 SO
MAX7501MUA
-55°C to +125°C
8 µMAX
MAX7502MSA
-55°C to +125°C
8 SO
MAX7502MUA
-55°C to +125°C
8 µMAX
Purchase of I2C components from Maxim Integrated Products
Inc., or one of its sublicensed Associated Companies, conveys
a license under Philips I2C Patent Rights to use these compo-
nents in an I2C system, provided that the system conforms to
the I2C Standard Specification as defined by Philips.
I2C is a trademark of Philips Corp.
µMAX is a registered trademark of Maxim Integrated
Products, Inc.


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