Datasheet

MCP2515
DS21801E-page 4 © 2007 Microchip Technology Inc.
FIGURE 1-2: EXAMPLE SYSTEM IMPLEMENTATION
TABLE 1-1: PINOUT DESCRIPTION
Name
PDIP/SOIC
Pin #
TSSOP
Pin #
I/O/P
Type
Description Alternate Pin Function
TXCAN 1 1 O Transmit output pin to CAN bus —
RXCAN 2 2 I Receive input pin from CAN bus —
CLKOUT 3 3 O Clock output pin with programmable
prescaler
Start-of-Frame signal
TX0RTS
4 4 I Transmit buffer TXB0 request-to-send.
100 kΩ internal pull-up to VDD
General purpose digital input.
100 kΩ internal pull-up to VDD
TX1RTS 5 5 I Transmit buffer TXB1 request-to-send.
100 kΩ internal pull-up to VDD
General purpose digital input.
100 kΩ internal pull-up to VDD
TX2RTS 6 7 I Transmit buffer TXB2 request-to-send.
100 kΩ internal pull-up to V
DD
General purpose digital input.
100 kΩ internal pull-up to V
DD
OSC2 7 8 O Oscillator output —
OSC1 8 9 I Oscillator input External clock input
VSS 9 10 P Ground reference for logic and I/O pins —
RX1BF
10 11 O Receive buffer RXB1 interrupt pin or
general purpose digital output
General purpose digital output
RX0BF
11 12 O Receive buffer RXB0 interrupt pin or
general purpose digital output
General purpose digital output
INT
12 13 O Interrupt output pin —
SCK 13 14 I Clock input pin for SPI interface —
SI 14 16 I Data input pin for SPI interface —
SO 15 17 O Data output pin for SPI interface —
CS 16 18 I Chip select input pin for SPI interface —
RESET 17 19 I Active low device reset input —
VDD 18 20 P Positive supply for logic and I/O pins —
NC — 6,15 — No internal connection
Note: Type Identification: I = Input; O = Output; P = Power
Node
Controller
MCP2515
XCVR
SPI
TX
RX
CANH
CANL
Node
Controller
MCP2515
XCVR
SPI
TX
RX
Node
Controller
MCP2515
XCVR
SPI
TX
RX