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Pin description – Rainbow Electronics MAX6654 User Manual

Page 5

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MAX6654

1°C Accurate Remote/Local Temperature

Sensor with SMBus Serial Interface

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5

Pin Description

PIN

NAME

FUNCTION

1, 5, 9, 13, 16

N.C.

No Connection. Not internally connected. May be used for PC board trace routing.

2

V

CC

Supply Voltage Input. +3.0V to +5.5V. Bypass to GND with a 0.1

µF capacitor. A 200Ω series

resistor is recommended but not required for additional noise filtering.

3

DXP

Combined Current Source and ADC Positive Input for Remote-Junction Channel. If a remote-
sensing junction is not used, connect DXP to DXN.

4

DXN

Combined Current Sink and ADC Negative Input. DXN is internally biased to a diode voltage above
ground.

6

ADD1

SMBus Slave Address Select Input. ADD0 and ADD1 are sampled upon power-up.

7, 8

GND

Ground

10

ADD0

SMBus Slave Address Select Input. ADD0 and ADD1 are sampled upon power-up.

11

ALERT

SMBus Alert (Interrupt) Output. Open drain.

12

SMBDATA

SMBus Serial-Data Input/Output. Open drain.

14

SMBCLK

SMBus Serial-Clock Input

15

STBY

Hardware standby input. Temperature and comparison threshold data are retained in standby
mode. Low = standby mode, high = operating mode.