SN65HVD1040: 3.3V MCU

Brian Wang0928

Genius 10970 points

Part Number: SN65HVD1040
Other Parts Discussed in Thread: TCAN334, SN74AHC1G125, TMS320F28377D

Is RXD/TXD pin supporting 3.3V level from MCU like as F28377?

Regards

Brian

6 months ago

0 Clemens Ladisch 6 months ago

Guru 223390 points

The TXD input can accept 3.3 V signals.

The RXD pin outputs 5 V; the TMS320F28377D will not work with this. You could insert a buffer with overvoltage-tolerant input (e.g., SN74AHC1G125), or use a 3.3 V CAN transceiver (e.g., TCAN334).

0 Eric Hackett 6 months ago in reply to Clemens Ladisch

TI__Guru 54392 points

Brian,

Clemens is correct, please let us know any follow-up questions you may have.

Regards,

Eric Hackett

Interface

Interface forum

SN65HVD1040: 3.3V MCU