PIC16F636T-I/SL(2005) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F636T-I/SL
(Rev.:2005)

8/14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC12F635/PIC16F636/639

4.2.4.4 RA3/MCLR/VPP

Figure 4-4 shows the diagram for this pin. The RA3 pin

is configurable to function as one of the following:

• a general purpose input

• as Master Clear Reset with weak pull-up

• a high-voltage detect for Program mode entry

FIGURE 4-4:

BLOCK DIAGRAM OF RA3

VDD

Program

Mode

MCLRE

HV Detect

Weak

Data Bus

RD

TRISA

RD

PORTA

DQ

WR

IOCA

CK Q

RD

IOCA

Reset

VSS

MCLRE

MCLRE

Input

pin

VSS

QD

EN

Q3

QD

EN

RD PORTA

Interrupt-on-

change

WURE

Sleep

DS41232B-page 46

Preliminary

© 2005 Microchip Technology Inc.

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