2009 Microchip Technology Inc.
Preliminary
DS41338B-page 9
MCV14A
TABLE 2-2:
MCV14A PINOUT DESCRIPTION
Name
Function
Input
Type
Output
Type
Description
RB0//C1IN+/AN0/
ICSPDAT
RB0
TTL
CMOS Bidirectional I/O pin. Can be software programmed for internal
weak pull-up and wake-up from Sleep on pin change.
C1IN+
AN
—
Comparator 1 input.
AN0
AN
—
ADC channel input.
ICSPDAT
ST
CMOS ICSP mode Schmitt Trigger.
RB1/C1IN-/AN1/
ICSPCLK
RB1
TTL
CMOS Bidirectional I/O pin. Can be software programmed for internal
weak pull-up and wake-up from Sleep on pin change.
C1IN-
AN
—
Comparator 1 input.
AN1
AN
—
ADC channel input.
ICSPCLK
ST
CMOS ICSP mode Schmitt Trigger.
RB2/C1OUT/AN2
RB2
TTL
CMOS Bidirectional I/O pin.
C1OUT
—
CMOS Comparator 1 output.
AN2
AN
—
ADC channel input.
RB3/MCLR/VPP
RB3
TTL
—
Input pin. Can be software programmed for internal weak
pull-up and wake-up from Sleep on pin change.
MCLR
ST
—
Master Clear (Reset). When configured as MCLR, this pin is
an active-low Reset to the device. Voltage on MCLR/VPP must
not exceed VDD during normal device operation or the device
will enter Programming mode. Weak pull-up always on if
configured as MCLR.
VPP
HV
—
Programming voltage input.
RB4/OSC2/CLKOUT
RB4
TTL
CMOS Bidirectional I/O pin.
OSC2
—
XTAL
Oscillator crystal output. Connections to crystal or resonator in
Crystal Oscillator mode (XT, HS and LP modes only, PORTB
in other modes).
CLKOUT
—
CMOS EXTRC/INTRC CLKOUT pin (FOSC/4).
RB5/OSC1/CLKIN
RB5
TTL
CMOS Bidirectional I/O pin.
OSC1
XTAL
—
Oscillator crystal input.
CLKIN
ST
—
External clock source input.
RC0/C2IN+
RC0
TTL
CMOS Bidirectional I/O port.
C2IN+
AN
—
Comparator 2 input.
RC1/C2IN-
RC1
TTL
CMOS Bidirectional I/O port.
C2IN-
AN
—
Comparator 2 input.
RC2/CVREF
RC2
TTL
CMOS Bidirectional I/O port.
CVREF
—
AN
Programmable Voltage Reference output.
RC3
TTL
CMOS Bidirectional I/O port.
RC4/C2OUT
RC4
TTL
CMOS Bidirectional I/O port.
C2OUT
—
CMOS Comparator 2 output.
RC5/T0CKI
RC5
TTL
CMOS Bidirectional I/O port.
T0CKI
ST
—
Timer0 Schmitt Trigger input pin.
VDD
—
P
Positive supply for logic and I/O pins.
VSS
—
P
Ground reference for logic and I/O pins.
Legend: I = Input, O = Output, I/O = Input/Output, P = Power, — = Not used, TTL = TTL input,
ST = Schmitt Trigger input, HV = High Voltage