MAX7504MUA+T Maxim Integrated Products, MAX7504MUA+T Datasheet - Page 11

• Manufacturer Part Number: MAX7504MUA+T
• Description: IC TEMP SENSOR DIGIT 8-UMAX
• Manufacturer: Maxim Integrated Products

Specifications of MAX7504MUA+T

• Function: Temp Sensor, Watchdog
• Topology: ADC (Sigma Delta), Register Bank
• Sensor Type: Internal
• Sensing Temperature: -55°C ~ 125°C
• Output Type: I²C™/SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Full Temp Accuracy: +/- 3 C
• Digital Output - Bus Interface: Serial (2-Wire, I2C)
• Digital Output - Number Of Bits: 9 bit
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX7500–MAX7504 feature an integrated lowpass
filter on both the SCL and the SDA digital lines to miti-
gate the effects of bus noise. Although this filtering
makes communication robust in noisy environments,
good layout practices are always recommended.
Minimize noise coupling by keeping digital traces away
from switching power supplies. Ensure that digital lines
containing high-speed data communications cross at
right angles to the SDA and SCL lines.
Excessive noise coupling into the SDA and SCL lines
on the MAX7500–MAX7504—specifically noise with
amplitude greater than 400mV
MAX7504s’ typical hysteresis), overshoot greater than
300mV above +V
below GND—may prevent successful serial communi-
cation. Serial bus no-acknowledge is the most common
symptom, causing unnecessary traffic on the bus.
Care must be taken to ensure proper termination within
a system with long PCB traces or multiple parts on the
bus. Resistance can be added in series with the SDA
and SCL lines to further help filter noise and ringing. If it
proves to be necessary, a 5kΩ resistor should be
placed in series with the SCL line, placed as close as
possible to SCL. This 5kΩ resistor, with the 5pF to 10pF
stray capacitance of the MAX7500–MAX7504 provide a
6MHz to 12MHz lowpass filter, which is sufficient filter-
ing in most cases.
PROCESS: CMOS
TOP VIEW
GND
GND
SDA
SDA
SCL
Digital Temperature Sensors and Thermal
SCL
Applications Information
OS
OS
S
______________________________________________________________________________________
1
2
3
4
1
2
3
4
, and undershoot more than 300mV
μMAX, SO
μMAX, SO
Watchdog with Bus Lockup Protection
MAX7501–
MAX7504
MAX7500
Pin Configurations
Chip Information
P-P
7
6
5
8
7
6
5
8
+V
A0
A1
A2
+V
A0
A1
RESET
(the MAX7500–
S
Digital Noise
S
+ Denotes a lead(Pb)-free/RoHS-compliant package.
MAX7500MSA+
MAX7500MUA
MAX7500MUA+
MAX7501MSA
MAX7501MSA+
MAX7501MUA
MAX7501MUA+
MAX7502MSA
MAX7502MSA+
MAX7502MUA
MAX7502MUA+
MAX7503MSA
MAX7503MSA+
MAX7503MUA
MAX7503MUA+
MAX7504MSA
MAX7504MSA+
MAX7504MUA
MAX7504MUA+
PART
Selector Guide (continued)
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
-55°C to
RANGE
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
TEMP
Ordering Information/
PIN-
PACKAGE
8 SO
8 µMAX
8 µMAX
8 SO
8 SO
8 µMAX
8 µMAX
8 SO
8 SO
8 µMAX
8 µMAX
8 SO
8 SO
8 µMAX
8 µMAX
8 SO
8 SO
8 µMAX
8 µMAX
RESET
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
TIMEOUT
—
—
—
—
—
—
—
—
—
—
—
—
X
X
X
X
X
X
X
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