Datasheet

PIC16F913/914/916/917/946

3.2.1 PIN DESCRIPTIONS AND

DIAGRAMS

Each PORTA pin is multiplexed with other functions. The

pins and their combined functions are briefly described

here. For specific information about individual functions,

refer to the appropriate section in this data sheet.

3.2.1.1 RA0/AN0/C1-/SEG12

Figure 3-1 shows the diagram for this pin. The RA0 pin

is configurable to function as one of the following:

• a general purpose I/O

• an analog input for the ADC

• an analog input for Comparator C1

• an analog output for the LCD

FIGURE 3-1: BLOCK DIAGRAM OF RA0

Data Latch

TRIS Latch

RD TRISA

RD PORTA

Analog Input or

I/O Pin

TTL

Input Buffer

To A/D Converter and Comparator

SEG12

SE12 and LCDEN

Data Bus

WR PORTA

WR TRISA

SE12 and LCDEN

VDD

VSS