EMC2101-R-ACZL-TR datasheet(11/56 Pages) MICROCHIP

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DS20006703A-page 11

EMC2101

3.0

PIN DESCRIPTIONS

The description of the pins is listed in Table 3-1.

All pins labeled with (5V) are 5V tolerant.

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

The pin types are described in Table 3-2.

TABLE 3-1:

EMC2101 PIN DESCRIPTION

8-pin

MSOP

Pin Name

Pin Type

Description

1VDD

Power

3.3V Power supply

External diode positive (anode) connection

External diode negative (cathode) connection

FAN

OD (5V)

PWM Output (default - software programmed)

DAC Output (software programmed)

GND

Power

Ground

6ALERT/TACH

OD (5V)

ALERT - Open drain I/O operates as active low interrupt or TACH

input; requires pull-up resistor, which defines auto-configuration

mode (see Table 4-1).

DI (5V)

TACH - TACH input

SMDATA

DIOD Output (5V) SMBus Data input/output

SMCLK

DIOD Output (5V) SMBus Clock input

TABLE 3-2:

PIN TYPES

Power

This pin is used to supply power or ground to the device

Digital Input. This pin is used as a digital input and is 5V tolerant

Analog Input. This pin is used as an input for analog signals

Analog Output. This pin is used as an output for analog signals

DIOD

Digital Input/Open Drain Output. This pin is used as a digital I/O. When it is used as an

output, it is open drain and requires a pull-up resistor. This pin is 5V tolerant.

Open Drain Digital Output. This pin is used as a digital output. It is open drain and requires

a pull-up resistor. This pin is 5V tolerant.

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