PIC16F917-E/ML View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F917-E/ML

28/40/44/64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology

Microchip Technology 

PIC16F913/914/916/917/946

3.2.1.3 RA2/AN2/C2+/VREF-/COM2

Figure 3-3 shows the diagram for this pin. The RA2 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 C2

• a voltage reference input for the ADC

• an analog output for the LCD

FIGURE 3-3:

BLOCK DIAGRAM OF RA2

Data Bus

WR PORTA

WR TRISA

D

Q

CK Q

Data Latch

D

Q

CK Q

TRIS Latch

RD TRISA

LCDEN and

LMUX<1:0> = 1X

VDD

VSS

Analog Input or

LCDEN and

LMUX<1:0> = 1X

TTL

Input Buffer

I/O Pin

RD PORTA

COM2

LCDEN and

LMUX<1:0> = 1X

To A/D Converter and Comparator

To A/D Module VREF- Input

© 2007 Microchip Technology Inc.

DS41250F-page 47

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