Page 35 - Making PIC Microcontroller Instruments and Controllers

24 UI{DEBSIAI{DING ltllCROCHlP IECHI{OIOGY'S PIC l6Fg77A: A DESCRIPIIOI{ OF THE MCU

PORTA.4 6 This specific pin has No analog iunclion
sPecial Pull-uP needsl
PORTA.s 7 Free for Aio-D conversion l\4emory chips
POBTB
PORTB.o 33 Keypad inputs
PORTB.I 34 Keypad inpuls
POBTB.2 35 Keypad lnputs
PORTB.3 36 Keypad inputs Pro9ag device
PORTB.4 37 Keypad inputs
PORTB.s 38 Keypad inputs
PORTB.6 39 Keypad inplrls Progfg device
PORTB.T 40 Keypad lnputs Progag device
POBTC
POnTC.0 15 Seruo/Clock
HPW[,4
PORTC.I 16 Clock chips Memory chlps, servo/clock,
PORTC.2 17 Plezo speakef
'18
PORTC.S Clock chips IVemory chips, servo/clock
PORTC.4 23 used wilh Nlemory chips
memofy chips
PORTC.s 24 Clock chips A,/D conversion,
PORTC.6 25 Transmltserial R3232C
communicalions
PORTC.T 26 Receive se al RS232C
communications
PORTD

POnTD.0 19 LCD and LED bargraph
PORTD.I 20 LCD and LED bargraph
PORTD.2 21 LCD and LED bargraph
PORTD.3 22 LCD and LED bargraph
PORTD.4 27 LCD and LED bargraph
PORTD.S 28 LCD and LED bargaph
POFTD.6 29 LCD and LED bargraph
PORTD.T 30 LCD and LED bargraph
PORTE PORTE Has Only 3 Exlernal Pins
POBTE.o 8 LCD wrting conlrols
PORTE.I I LCD wfiting conlfols
PORTE.2 10 LCD wriiing controls Comnrunications