2003 Microchip Technology Inc.
Preliminary
DS40300C-page 9
PIC16F62X
TABLE 2-1:
PIC16F62X PINOUT DESCRIPTION
Name
Function
Input Type Output Type
Description
RA0/AN0
RA0
ST
CMOS
Bi-directional I/O port
AN0
AN
Analog comparator input
RA1/AN1
RA1
ST
CMOS
Bi-directional I/O port
AN1
AN
Analog comparator input
RA2/AN2/V
REF
RA2
ST
CMOS
Bi-directional I/O port
AN2
AN
Analog comparator input
V
REF
—AN
V
REF output
RA3/AN3/CMP1
RA3
ST
CMOS
Bi-directional I/O port
AN3
AN
Analog comparator input
CMP1
CMOS
Comparator 1 output
RA4/T0CKI/CMP2
RA4
ST
OD
Bi-directional I/O port
T0CKI
ST
Timer0 clock input
CMP2
OD
Comparator 2 output
RA5/MCLR/V
PP
RA5
ST
Input port
MCLR
ST
Master clear
V
PP
Programming voltage input. When configured
as MCLR, this pin is an active low RESET to
the device. Voltage on MCLR/V
PP must not
exceed V
DD during normal device operation.
RA6/OSC2/CLKOUT
RA6
ST
CMOS
Bi-directional I/O port
OSC2
XTAL
Oscillator crystal output. Connects to crystal
or resonator in Crystal Oscillator mode.
CLKOUT
CMOS
In ER/INTRC mode, OSC2 pin can output
CLKOUT, which has 1/4 the frequency of
OSC1
RA7/OSC1/CLKIN
RA7
ST
CMOS
Bi-directional I/O port
OSC1
XTAL
Oscillator crystal input
CLKIN
ST
External clock source input. ER biasing pin.
RB0/INT
RB0
TTL
CMOS
Bi-directional I/O port. Can be software
programmed for internal weak pull-up.
INT
ST
External interrupt.
RB1/RX/DT
RB1
TTL
CMOS
Bi-directional I/O port. Can be software
programmed for internal weak pull-up.
RX
ST
USART receive pin
DT
ST
CMOS
Synchronous data I/O.
RB2/TX/CK
RB2
TTL
CMOS
Bi-directional I/O port.
TX
CMOS
USART transmit pin
CK
ST
CMOS
Synchronous clock I/O. Can be software
programmed for internal weak pull-up.
RB3/CCP1
RB3
TTL
CMOS
Bi-directional I/O port. Can be software
programmed for internal weak pull-up.
CCP1
ST
CMOS
Capture/Compare/PWM I/O
Legend:
O = Output
CMOS = CMOS Output
P
= Power
— = Not used
I
= Input
ST = Schmitt Trigger Input
TTL = TTL Input
OD
= Open Drain Output
AN = Analog
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