PIC16F914-E/SP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F914-E/SP

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

Microchip Technology 

PIC16F913/914/916/917/946

3.2.1.5 RA4/C1OUT/T0CKI/SEG4

Figure 3-5 shows the diagram for this pin. The RA4 pin

is configurable to function as one of the following:

• a general purpose I/O

• a digital output from Comparator C1

• a clock input for Timer0

• an analog output for the LCD

FIGURE 3-5:

BLOCK DIAGRAM OF RA4

Data Bus

WR PORTA

WR TRISA

CM<2:0> = 110 or 101

C1OUT

1

D

Q

0

CK Q

Data Latch

D

Q

CK Q

TRIS Latch

VDD

VSS

SE4 and LCDEN

RD TRISA

SE4 and LCDEN

TTL

Input Buffer

I/O Pin

RD PORTA

T0CKI

Schmitt Trigger

SEG4

SE4 and LCDEN

SE4 and LCDEN

© 2007 Microchip Technology Inc.

DS41250F-page 49

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