MCP6544 datasheet(15/46 Pages) MICROCHIP

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 2011 Microchip Technology Inc.

DS21696G-page 15

MCP6541/1R/1U/2/3/4

3.0

PIN DESCRIPTIONS

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

TABLE 3-1:

PIN FUNCTION TABLE

3.1

Analog Inputs

The comparator non-inverting and inverting inputs are

high-impedance CMOS inputs with low bias currents.

3.2

CS Digital Input

This is a CMOS, Schmitt-triggered input that places the

part into a low-power mode of operation.

3.3

Digital Outputs

The comparator outputs are CMOS, push-pull digital

outputs. They are designed to be compatible with

CMOS and TTL logic and are capable of driving heavy

DC or capacitive loads.

3.4

Power Supply (VSS and VDD)

The positive power supply pin (VDD) is 1.6V 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

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

bulk capacitor with nearby analog parts (within

100 mm), but it is not required.

MCP6541

PDIP,

SOIC,

MSOP

MCP6541

SOT-23-5,

SC-70-5

Symbol

Description

4161

OUT, OUTA Digital Output (comparator A)

3222

VIN–, VINA– Inverting Input (comparator A)

1333

VIN+, VINA+ Non-inverting Input (comparator A)

5874

VDD

Positive Power Supply

——

—

VINB+

Non-inverting Input (comparator B)

——

—

VINB–

Inverting Input (comparator B)

—

OUTB

Digital Output (comparator B)

—

OUTC

Digital Output (comparator C)

——

—

VINC–

Inverting Input (comparator C)

——

—

VINC+

Non-inverting Input (comparator C)

244

VSS

Negative Power Supply

——

—

VIND+

Non-inverting Input (comparator D)

——

—

VIND–

Inverting Input (comparator D)

—

OUTD

Digital Output (comparator D)

——

—

Chip Select

1, 5, 8

—

1, 5

—

No Internal Connection

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