SH7261 Datasheet, PDF (903/1348 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 19 Controller Area Network (RCAN-ET) [R5S72611] [R5S72613]
19.8 CAN Bus Interface
A bus transceiver IC is necessary to connect this LSI to a CAN bus. A Renesas HA13721
transceiver IC and its compatible products are recommended. As the CRx and CTx pins use 3 V,
an external level shifter is necessary. Figure 19.13 shows a sample connection diagram.
This LSI
CRx
3V→5V
CTx
Level shifter
120 Ω
Vcc
HA13721
MODE Vcc
Rxd CANH
Txd CANL
NC
GND
CAN bus
Note: NC: No Connection
120 Ω
Figure 19.13 High-Speed Interface Using HA13721
Rev. 2.00 Sep. 07, 2007 Page 871 of 1312
REJ09B0320-0200