PIC16F946 Datasheet, PDF (60/274 Pages) Microchip Technology – 64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology

PIC16F946
FIGURE 3-22:
BLOCK DIAGRAM OF RD0/COM3
Data Bus
WR PORTD
WR TRISD
DQ
CK Q
Data Latch
DQ
CK Q
TRIS Latch
RD TRISD
Schmitt
Trigger
LCDEN and LMUX<1:0> = 11
VDD
RD0/COM3
Pin
COM3
RD PORTD
LCDEN and
LMUX<1:0> = 11
FIGURE 3-23:
BLOCK DIAGRAM OF RD1
Data Bus
WR PORTD
WR TRISD
DQ
CK Q
Data Latch
DQ
CK Q
TRIS Latch
RD TRISD
VDD
RD1 Pin
Schmitt
Trigger
RD PORTD
DS41265A-page 58
Preliminary
© 2005 Microchip Technology Inc.