Pin Allocation Tables

Table 1. 28-Pin Allocation Table
I/O⁽²⁾	28-Pin SPDIP, SOIC, SSOP	28-Pin (V)QFN	A/D	Reference	Comparator	Timers	CCP	CWG	ZCD	Interrupt	EUSART	DSM	MSSP	Pull-up	Basic
RA0	2	27	ANA0	—	C1IN0- C2IN0-	—	—	—	—	IOCA0	—	—	—	Y	—
RA1	3	28	ANA1	—	C1IN1- C2IN1-	—	—	—	—	IOCA1	—	—	—	Y	—
RA2	4	1	ANA2	DAC1OUT1 V_REF- (DAC) V_REF- (ADC)	C1IN0+ C2IN0+	—	—	—	—	IOCA2	—	—	—	Y	—
RA3	5	2	ANA3	V_REF+ (DAC) V_REF+ (ADC)	C1IN1+	—	—	—	—	IOCA3	—	MDCARL⁽¹⁾	—	Y	—
RA4	6	3	ANA4	—	—	T0CKI⁽¹⁾	—	—	—	IOCA4	—	MDCARH⁽¹⁾	—	Y	—
RA5	7	4	ANA5	—	—	—	—	—	—	IOCA5	—	MDSRC⁽¹⁾	SS1⁽¹⁾	Y	—
RA6	10	7	ANA6	—	—	—	—	—	—	IOCA6	—	—	—	Y	CLKOUT OSC2
RA7	9	6	ANA7	—	—	—	—	—	—	IOCA7	—	—	—	Y	OSC1 CLKIN
RB0	21	18	ANB0	—	C2IN1+	—	—	CWG1⁽¹⁾	ZCDIN	IOCB0 INT0⁽¹⁾	—	—	—	Y	—
RB1	22	19	ANB1	—	C1IN3- C2IN3-	—	—	—	—	IOCB1 INT1⁽¹⁾	—	—	—	Y	—
RB2	23	20	ANB2	—	—	—	—	—	—	IOCB2 INT2⁽¹⁾	—	—	—	Y	—
RB3	24	21	ANB3	—	C1IN2- C2IN2-	—	—	—	—	IOCB3	—	—	—	Y	—
RB4	25	22	ANB4	—	—	T5G⁽¹⁾	—	—	—	IOCB4	—	—	—	Y	—
RB5	26	23	ANB5	—	—	T1G⁽¹⁾	—	—	—	IOCB5	—	—	—	Y	—
RB6	27	24	ANB6	—	—	—	—	—	—	IOCB6	—	—	—	Y	ICSPCLK
RB7	28	25	ANB7	DAC1OUT2	—	T6IN⁽¹⁾	—	—	—	IOCB7	—	—	—	Y	ICSPDAT
RC0	11	8	ANC0	—	—	T1CKI⁽¹⁾ T3CKI⁽¹⁾ T3G⁽¹⁾	—	—	—	IOCC0	—	—	—	Y	SOSCO
RC1	12	9	ANC1	—	—	—	CCP2⁽¹⁾	—	—	IOCC1	—	—	—	Y	SOSCIN SOSCI
RC2	13	10	ANC2	—	—	T5CKI⁽¹⁾	CCP1⁽¹⁾	—	—	IOCC2	—	—	—	Y	—
RC3	14	11	ANC3	—	—	T2IN⁽¹⁾	—	—	—	IOCC3	—	—	SCK1⁽¹⁾ SCL1^(3,4)	Y	—
RC4	15	12	ANC4	—	—	—	—	—	—	IOCC4	—	—	SDI1⁽¹⁾ SDA1^(3,4)	Y	—
RC5	16	13	ANC5	—	—	T4IN⁽¹⁾	—	—	—	IOCC5	—	—	—	Y	—
RC6	17	14	ANC6	—	—	—	—	—	—	IOCC6	CK1^(1,3)	—	—	Y	—
RC7	18	15	ANC7	—	—	—	—	—	—	IOCC7	RX1/DT1^(1,3)	—	—	Y	—
RE3	1	26	—	—	—	—	—	—	—	IOCE3	—	—	—	Y	Vpp/MCLR
V_SS	19	16	—	—	—	—	—	—	—	—	—	—	—	—	V_SS
V_DD⁽⁵⁾	20	17	—	—	—	—	—	—	—	—	—	—	—	—	V_DD
V_SS	8	5	—	—	—	—	—	—	—	—	—	—	—	—	V_SS
OUT⁽²⁾	—	—	ADGRDA ADGRDB	—	C1OUT C2OUT	TMR0	CCP1 CCP2 PWM3 PWM4	CWG1A CWG1B CWG1C CWG1D	—	—	TX1/CK1⁽³⁾ DT1⁽³⁾	DSM	SDO1 SCK1	—	—
Note: 1.This is a PPS remappable input signal. The input function may be moved from the default location shown to one of several other PORTx pins. Refer to the peripheral input selection table for details on which port pins may be used for this signal. 2.All output signals shown in this row are PPS remappable. These signals may be mapped to output onto one of several PORTx pin options as described in the peripheral output selection table. 3.This is a bidirectional signal. For normal module operation, the firmware should map this signal to the same pin in both the PPS input and PPS output registers. 4.These pins are configured for I²C logic levels; The SCLx/SDAx signals may be assigned to any of these pins. PPS assignments to the other pins (e.g., RB1) will operate, but input logic levels will be standard TTL/ST as selected by the INLVL register, instead of the I²C specific or SMBus input buffer thresholds. 5.A 0.1 uF bypass capacitor to V_SS is required on the V_DD pin.