PIC12C67X
DS30561C-page 28 1997-2013 Microchip Technology Inc.
FIGURE 5-3: BLOCK DIAGRAM OF GP3/MCLR/VPP PIN
P
GPPU
VDD
DQ
EN
RD PORT
Schmitt Trigger
Input Buffer
Input Pin
VSS
MCLREN
RD TRIS
Data Bus
Program Mode
HV Detect
MCLR
GP3/INT
(1)
Note 1: Wake-up on pin change interrupt for GP3.
TTL Input
Buffer
V
SS
