
2010 Microchip Technology Inc.
DS70135G-page 13
dsPIC30F4011/4012
OSC1
OSC2
I
I/O
ST/CMOS
—
Oscillator crystal input. ST buffer when configured in RC mode; CMOS
otherwise.
Oscillator crystal output. Connects to crystal or resonator in Crystal Oscillator
mode. Optionally functions as CLKO in RC and EC modes.
PGD
PGC
I/O
I
ST
In-Circuit Serial Programming data input/output pin.
In-Circuit Serial Programming clock input pin.
RB0-RB8
I/O
ST
PORTB is a bidirectional I/O port.
RC13-RC15
I/O
ST
PORTC is a bidirectional I/O port.
RD0-RD3
I/O
ST
PORTD is a bidirectional I/O port.
RE0-RE5,
RE8
I/O
ST
PORTE is a bidirectional I/O port.
RF0-RF6
I/O
ST
PORTF is a bidirectional I/O port.
SCK1
SDI1
SDO1
SS1
I/O
I
O
I
ST
—
ST
Synchronous serial clock input/output for SPI1.
SPI1 data in.
SPI1 data out.
SPI1 slave synchronization.
SCL
SDA
I/O
ST
Synchronous serial clock input/output for I2C.
Synchronous serial data input/output for I2C.
SOSCO
SOSCI
O
I
—
ST/CMOS
32 kHz low-power oscillator crystal output.
32 kHz low-power oscillator crystal input. ST buffer when configured in RC
mode; CMOS otherwise.
T1CK
T2CK
I
ST
Timer1 external clock input.
Timer2 external clock input.
U1RX
U1TX
U1ARX
U1ATX
U2RX
U2TX
I
O
I
O
I
O
ST
—
ST
—
ST
—
UART1 receive.
UART1 transmit.
UART1 alternate receive.
UART1 alternate transmit.
UART2 receive.
UART2 transmit.
VDD
P
—
Positive supply for logic and I/O pins.
VSS
P
—
Ground reference for logic and I/O pins.
VREF+
I
Analog
Analog voltage reference (high) input.
VREF-
I
Analog
Analog voltage reference (low) input.
TABLE 1-1:
dsPIC30F4011 I/O PIN DESCRIPTIONS (CONTINUED)
Pin Name
Pin
Type
Buffer
Type
Description
Legend: CMOS =
CMOS compatible input or output
Analog =
Analog input
ST
=
Schmitt Trigger input with CMOS levels
O
=
Output
I
=
Input
P
=
Power