1°C Accurate Remote/Local Temperature
Sensor with SMBus Serial Interface
Pin Description
PIN
1, 5, 9, 13, 16
2
3
4
6
7, 8
10
11
12
14
15
NAME
N.C.
V
CC
DXP
DXN
ADD1
GND
ADD0
ALERT
SMBDATA
SMBCLK
STBY
FUNCTION
No Connection. Not internally connected. May be used for PC board trace routing.
Supply Voltage Input. +3.0V to +5.5V. Bypass to GND with a 0.1µF capacitor. A 200Ω series
resistor is recommended but not required for additional noise filtering.
Combined Current Source and ADC Positive Input for Remote-Junction Channel. If a remote-
sensing junction is not used, connect DXP to DXN.
Combined Current Sink and ADC Negative Input. DXN is internally biased to a diode voltage above
ground.
SMBus Slave Address Select Input. ADD0 and ADD1 are sampled upon power-up.
Ground
SMBus Slave Address Select Input. ADD0 and ADD1 are sampled upon power-up.
SMBus Alert (Interrupt) Output. Open drain.
SMBus Serial-Data Input/Output. Open drain.
SMBus Serial-Clock Input
Hardware standby input. Temperature and comparison threshold data are retained in standby
mode. Low = standby mode, high = operating mode.
MAX6654
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5
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
