MCP65R46T datasheet(19/36 Pages) MICROCHIP

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DS20002269C-page 19

MCP65R41/6

3.0

PIN DESCRIPTIONS

Descriptions of the pins are listed in Table 3-1.

3.1

Analog Inputs

The comparator noninverting and inverting inputs are

high-impedance CMOS inputs with low bias currents.

3.2

Digital Outputs

The comparator outputs are CMOS/TTL compatible

push-pull and open-drain digital outputs. The push-pull

is designed to directly interface to a CMOS/TTL com-

patible pin while the open-drain output is designed for

level shifting and wired-OR interfaces.

3.3

Analog Outputs

The VREF Output pin outputs a reference voltage of

1.21V or 2.4V.

3.4

Power Supply (VSS and VDD)

The positive power supply pin (VDD) is 1.8V to 5.5V

higher than the negative power supply pin (VSS). For

normal operation, the other pins are at voltages

between VSS and VDD.

Typically, these parts are used in a single (positive)

supply configuration. In this case, VSS is connected to

ground and VDD is connected to the supply. VDD will

need a local bypass capacitor (typically 0.01 µF to

0.1 µF) within 2 mm of the VDD pin. These can share a

bulk capacitor with the nearby analog parts (within

100 mm), but it is not required.

TABLE 3-1:

PIN FUNCTION TABLE

MCP65R41/6

Symbol

Description

SOT23-6

OUT

Digital Output

2VSS

Ground

3VIN+

Noninverting Input

4VIN–

Inverting Input

5VREF

Reference Voltage Output

6VDD

Positive Power Supply

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