EMC1428 datasheet(8/53 Pages) MICROCHIP

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1°C Multiple Temperature Sensor with HW Thermal Shutdown & Hottest of Thermal Zones

Data Sheet

DS20005275A-page 8

 2014 Microchip Technology Inc.

The pin types are described below. All pins labelled (5V) are 5V tolerant.

APPLICATION NOTE: For the 5V tolerant pins that have a pull-up resistor, the voltage difference between VDD and

the pull-up voltage must never exceed 3.6V.

SYS_SHDN

Active low System Shutdown output

signal - requires pull-up resistor

EMC1428-7 - The pull-up resistor is

used to determine SMBus address

OD (5V)

ALERT

Active low interrupt - requires pull-up

resistor

OD (5V)

GND

Ground Connection

Power

DN4 / DP5

External diode 4 negative (cathode)

connection and External Diode 5

positive (anode) connection

AIO

DP4 / DN5

External Diode 4 positive (anode)

connection and External Diode 5

negative (cathode) connection

AIO

SMDATA

SMBus Data input/output - requires

pull-up resistor

DIOD (5V)

SMCLK

SMBus Clock input - requires pull-up

resistor

DI (5V)

N/C

Not used - connect to Ground - see

EMC1428 Anomaly Sheet

n/a

DN6 / DP7

External diode 6 negative (cathode)

connection and External Diode 7

positive (anode) connection

AIO

DP6 / DN7

External Diode 6 positive (anode)

connection and External Diode 7

negative (cathode) connection

AIO

VDD

Power supply

Power

Table 1.2 Pin Type

PIN TYPE

FUNCTION

Power

Used to supply either VDD or GND to the device

5V tolerant digital input

5V tolerant Open drain digital output. Requires a pull-up resistor

DIOD

5V tolerant bi-directional digital input / open-drain output. Requires a pull-up

resistor.

AIO

Analog input / output used for external diodes or analog inputs

Table 1.1 EMC1428 Pin Description (continued)

PIN NUMBER

NAME

FUNCTION

TYPE

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