Datasheet

 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.