Microchip Technology AC160214 Data Sheet
2010-2012 Microchip Technology Inc.
DS41414D-page 13
PIC16(L)F1946/47
TABLE 1-2:
PIC16(L)F1946/47 PINOUT DESCRIPTION
Name
Function
Input
Type
Output
Type
Description
RA0/AN0/CPS0/SEG33
RA0
TTL
CMOS General purpose I/O.
AN0
AN
—
A/D Channel input.
CPS0
AN
—
Capacitive sensing input 0.
SEG33
—
AN
LCD Analog output.
RA1/AN1/CPS1/SEG18
RA1
TTL
CMOS General purpose I/O.
AN1
AN
—
A/D Channel input.
CPS1
AN
—
Capacitive sensing input.
SEG18
—
AN
LCD Analog output.
RA2/AN2/V
REF
-/CPS2/SEG34
RA2
TTL
CMOS General purpose I/O.
AN2
AN
—
A/D Channel input.
V
REF
-
AN
—
A/D Negative Voltage Reference input.
CPS2
AN
—
Capacitive sensing input.
SEG34
—
AN
LCD Analog output.
RA3/AN3/V
REF
+/CPS3/SEG35
RA3
TTL
CMOS General purpose I/O.
AN3
AN
—
A/D Channel input.
V
REF
+
AN
—
A/D Voltage Reference input.
CPS3
AN
—
Capacitive sensing input.
SEG35
—
AN
LCD Analog output.
RA4/T0CKI/SEG14
RA4
TTL
CMOS General purpose I/O.
T0CKI
ST
—
Timer0 clock input.
SEG14
—
AN
LCD Analog output.
RA5/AN4/CPS4/SEG15
RA5
TTL
CMOS General purpose I/O.
AN4
AN
—
A/D Channel input.
CPS4
AN
—
Capacitive sensing input.
SEG5
—
AN
LCD Analog output.
RA6/OSC2/CLKOUT/SEG36
RA6
TTL
CMOS General purpose I/O.
OSC2
—
XTAL
Crystal/Resonator (LP, XT, HS modes).
CLKOUT
—
CMOS F
OSC
/4 output.
SEG36
—
AN
LCD Analog output.
RA7/OSC1/CLKIN/SEG37
RA7
TTL
CMOS General purpose I/O.
OSC1
XTAL
—
Crystal/Resonator (LP, XT, HS modes).
CLKIN
CMOS
—
External clock input (EC mode).
SEG37
—
AN
LCD Analog output.
RB0/INT/SRI/FLT0/SEG30
RB0
TTL
CMOS General purpose I/O. Individually controlled interrupt-on-change.
Individually enabled pull-up.
INT
ST
—
External interrupt.
SRI
—
ST
SR Latch input.
FLT0
ST
—
ECCP Auto-shutdown Fault input.
SEG30
—
AN
LCD analog output.
RB1/SEG8
RB1
TTL
CMOS General purpose I/O. Individually controlled interrupt-on-change.
Individually enabled pull-up.
SEG8
—
AN
LCD Analog output.
Legend: AN = Analog input or output CMOS= CMOS compatible input or output
OD
= Open Drain
TTL = TTL compatible input
ST
= Schmitt Trigger input with CMOS levels I
2
C™ = Schmitt Trigger input with I
2
C
HV = High Voltage
XTAL = Crystal
levels
Note 1:
Pin function is selectable via the APFCON register.