PIC18LF4420T-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18LF4420T-I/SO

28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F2420/2520/4420/4520

FIGURE 21-2:

VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE

PIC18FXXXX

CVREF

Module

R(1)

Voltage

Reference

Output

Impedance

RA2

+

–

CVREF Output

Note 1: R is dependent upon the voltage reference configuration bits, CVRCON<3:0> and CVRCON<5>.

TABLE 21-1: REGISTERS ASSOCIATED WITH COMPARATOR VOLTAGE REFERENCE

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

CVRCON CVREN CVROE CVRR CVRSS CVR3 CVR2

CMCON

TRISA

C2OUT C1OUT C2INV C1INV

CIS

CM2

TRISA7(1) TRISA6(1) PORTA Data Direction Control Register

Legend: Shaded cells are not used with the comparator voltage reference.

Note 1: PORTA pins are enabled based on oscillator configuration.

CVR1

CM1

CVR0

CM0

Reset

Values

on page

51

51

52

 2004 Microchip Technology Inc.

Preliminary

DS39631A-page 241

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