PIC16F648A-I Datasheet, PDF(13/34 Page) Microchip Technology – Push-Pull Output Sub-Microamp Comparators

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

PIC16F648A-I Datasheet, PDF (13/34 Pages) Microchip Technology – Push-Pull Output Sub-Microamp Comparators

◁

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

MCP6541

(PDIP,

SOIC,

MSOP)

MCP6541

(SOT-23-5,

SC-70-5)

1, 5, 8

â 1, 5

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.

Symbol

Description

1 OUT, OUTA Digital Output (comparator A)

2 VINâ, VINAâ Inverting Input (comparator A)

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

VDD

Positive Power Supply

VINB+ Non-inverting Input (comparator B)

VINBâ Inverting Input (comparator B)

OUTB Digital Output (comparator B)

OUTC Digital Output (comparator C)

VINCâ Inverting Input (comparator C)

VINC+ Non-inverting Input (comparator C)

VSS

Negative Power Supply

VIND+ Non-inverting Input (comparator D)

VINDâ Inverting Input (comparator D)

OUTD Digital Output (comparator D)

Chip Select

No Internal Connection

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 ÂµF to

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

bulk capacitor with nearby analog parts (within

100 mm), but it is not required.

DS21696E-page 13

▷