Microchip 16F690 Pins

Programming | PIC's | Microchip 16F690 Pins

Function	Pin	Pin	Function
Vdd	1	20	Vss
RA5 / T1CLKI / OSC1 / CLKIN	2	19	RA0 / AN0 / C1IN+ / ICSPDAT / ULPWU
RA4 / AN3 / T1G / OCS2 / CLKOUT	3	18	RA1 / AN1 / C12ION0- Vref / ICSPCLK
RA3 / MCLR / Vpp	4	17	RA2 / AN2 / T0CKI / INT / C1OUT
RC5 / CCP1 / P1A	5	16	RC0 / AN4 / C2IN+
RC4 / C2OUT / P1B	6	15	RC1 / AN5 / C12IN1-
RC3 / AN7 / C12IN3- / P1C	7	14	RC2 / AN6 / C12IN2- / PID
RC6 / AN8 / SS	8	13	RB4 / AN10 / SDI / SDA
RC7 / AN9 / SDO	9	12	RB5 / AN11 / RX / DT
RB7 / TX / CL	10	11	RB6 / SCK / SCL

Pin	Name	Input	Output	Description
1	Vdd	Power	-	Positive Supply
2	RA5	TTL	CMOS	General Purpose I/O. Individually controlled interrupt-on-change.
	T1CKI	ST	-	Timer 1 clock input.
	OSC1	XTAL	-	Crystal/Resonator
	CLKIN	ST	-	External clock input / RC oscillator connection.
3	RA4	TTL	CMOS	General Purpose I/O. Individually controlled interrupt-on-change.
	AN3	AN	-	A/D Channel 3 input.
	T1G	ST	-	Timer 1 gate input.
	OSC2	-	XTAL	Crystal/Resonator
4	RA3	TTL	CMOS	General Purpose I/O. Individually controlled interrupt-on-change.
	MCLR	ST	-	Master Clear with internal pull-up.
	Vpp	HV	-	Programming Voltage
5	RC5	ST	CMOS	General Purpose I/O.
	CPP1	ST	CMOS	Capture/Compare Input
	P1A	ST	CMOS	PWM output.
6	RC4	ST	CMOS	General Purpose I/O.
	C2OUT	-	CMOS	Comparator C2 output.
	P1B	ST	CMOS	PWM output.
7	RC3	ST	CMOS	General Purpose I/O.
	AN7	AN	-	A/D Channel 7 Input.
	C12IN3-	AN	-	Comparator C1 or C2 negative input.
	P1C	-	CMOS	PWM output.
8	RC6	ST	CMOS	General Purpose I/O.
	AN8	AN	-	A/D Channel 8 Input.
	SS	ST	-	Slave Select input.
9	RC7	ST	CMOS	General Purpose I/O.
	AN9	AN	-	A/D Channel 9 Input.
	SDO	-	CMOS	SPI data output.
10	RB7	TTL	CMOS	General Purpose I/O. Individually controlled interrupt-on-change.
	TX	-	CMOS	EUSART Asynchronous output.
	CK	ST	CMOS	EUSART Synchronous Clock.
11	RB6	TTL	CMOS	General Purpose I/O. Individually controlled interrupt-on-change.
	SCK	ST	CMOS	SPI Clock
	SCL	ST	OD	i²C Clock
12	RB5	TTL	CMOS	General Purpose I/O. Individually controlled interrupt-on-change.
	AN11	AN	-	A/D Channel 11 Input.
	RX	ST	-	EUSART asynchronous input.
	DT	ST	CMOS	EUSART synchronous data.
13	RB4	TTL	CMOS	General Purpose I/O. Individually controlled interrupt-on-change.
	AN10	AN	-	A/D Channel 10 Input.
	SDI	ST	-	SPI data input.
	SDA	ST	OD	I²C data input/output
14	RC2	ST	CMOS	General Purpose I/O.
	AN6	AN	-	A/D Channel 6 Input.
	C12IN2-	AN	-	Comparator C1 or C2 negative input.
	P1D	-	CMOS	PWM output.
15	RC1	ST	CMOS	General Purpose I/O.
	AN5	AN	-	A/D Channel 5 Input.
	C12IN1-	AN	-	Comparator C1 or C2 negative input.
16	RC0	ST	CMOS	General Purpose I/O.
	AN5	AN	-	A/D Channel 5 Input.
	C2IN+	AN	-	Comparator C2 positive input.
17	RA2	TTL	CMOS	General Purpose I/O. Individually controlled interrupt-on-change.
	AN2	AN	-	A/D Channel 2 Input.
	T0CKI	ST	-	Timer 0 clock input.
	INT	ST	-	External Interupt.
	C1OUT	-	CMOS	Comparator C1 output.
18	RA1	TTL	CMOS	General Purpose I/O. Individually controlled interrupt-on-change.
	AN1	AN	-	A/D Channel 1 Input.
	C12IN0-	AN	-	Comparator C1 or C2 negative input.
	Vref	AN	-	External Voltage Reference for A/D
	ICPCLK	ST	-	ICSP clock.
19	RA0	TTL	CMOS	General Purpose I/O. Individually controlled interrupt-on-change.
	AN0	AN	-	A/D Channel 0 Input.
	C1IN+	AN	-	Comparator C1 positive input.
	ICSPDAT	TTL	CMOS	ICSP Data I/O.
	ULPWU	AN	-	Ultra Low-Power Wake-up input.
20	Vss	Power	-	Ground Reference