PIC16F946 Datasheet, PDF (50/274 Pages) Microchip Technology – 64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology

PIC16F946
3.4.1
PIN DESCRIPTIONS AND
DIAGRAMS
Each PORTC pin is multiplexed with other functions. The
pins and their combined functions are briefly described
here. For specific information about individual functions
such as the LCD or SSP, refer to the appropriate section
in this data sheet.
3.4.1.1 RC0/VLCD1
Figure 3-14 shows the diagram for this pin. The
RC0/VLCD1 pin is configurable to function as one of
the following:
• a general purpose I/O
• an analog input for the LCD bias voltage
3.4.1.2 RC1/VLCD2
Figure 3-15 shows the diagram for this pin. The
RC1/VLCD2 pin is configurable to function as one of
the following:
• a general purpose I/O
• an analog input for the LCD bias voltage
3.4.1.3 RC2/VLCD3
Figure 3-16 shows the diagram for this pin. The
RC2/VLCD3 pin is configurable to function as one of
the following:
• a general purpose I/O
• an analog input for the LCD bias voltage
FIGURE 3-14:
BLOCK DIAGRAM OF RC0/VLCD1
Data Bus
WR PORTC
WR TRISC
D
Q
CK Q
Data Latch
D
Q
CK Q
TRIS Latch
VDD
RC0/VLCD1
Pin
RD TRISC
(VLCDEN and LMUX<1:0> ≠ 00)
Schmitt
Trigger
VLCD1
RD PORTC
(VLCDEN and LMUX<1:0> ≠ 00)
DS41265A-page 48
Preliminary
© 2005 Microchip Technology Inc.