PIC16F610 Datasheet, PDF (38/180 Pages) Microchip Technology – 14-Pin, Flash-Based 8-Bit CMOS Microcontrollers

PIC16F610/616/16HV610/616
4.2.4.4 RA3/MCLR/VPP
Figure 4-3 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
FIGURE 4-3:
BLOCK DIAGRAM OF RA3
MCLRE
VDD
Weak
Data Bus
RD
TRISA
RD
PORTA
DQ
WR
IOCA
CK _Q
RD
IOCA
Interrupt-on-
Change
Q S⁽¹⁾
R
Write ‘0’ to RAIF
From other
RA<5:4, 2:0> pins
Reset
VSS
MCLRE
MCLRE
Input
Pin
VSS
Q
D
EN
Q1
Q
D
EN
RD PORTA
Note 1: Set has priority over Reset
DS41288C-page 36
Preliminary
© 2007 Microchip Technology Inc.