Texas Instruments SN65HVD230QDR CANbus transceiver, half-duplex, 1 Mbps data rate, 3 V to 3.6 V supply, 100 mV receiver hysteresis, -40°C to 85°C, 8-SOIC surface mount.
| Parameter | Value |
|---|---|
| Type | Transceiver |
| Mounting | Surface Mount |
| Supply voltage | 3V ~ 3.6V |
| Protocol | CANbus |
| Operating temperature | -40°C~85°C |
| Duplex | Half |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Data rate | 1Mbps |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Receiver hysteresis | 100 mV |
| Number of drivers (Receivers) | 1/1 |
The SN65HVD230QDR: Half-duplex CAN transceiver supporting data rates up to 1 Mbps.
The CAN bus pins themselves are differential and tolerate common-mode voltages well beyond the supply, but the VCC pin must see a clean 3.3 V. On a repair bench, I have seen these fail when someone plugged a 5 V regulator output straight in — the scorch mark tells you exactly which part died.
It is a 3.3 V device and is not 5 V tolerant on VCC. The CAN bus pins are differential and handle common-mode voltages beyond the supply, but the logic interface (TXD, RXD) is 3.3 V logic level. For a 5 V system, you would need a level shifter or a 5 V CAN transceiver like the SN65HVD230 (same base number, different supply variant).
The TJA1050 is a 5 V CAN transceiver, while the SN65HVD230QDR is a 3.3 V part. They are not pin-compatible — the TJA1050 uses an 8-SOIC package but the supply voltage and logic levels differ. You cannot drop a SN65HVD230QDR onto a board designed for a TJA1050 without changing the VCC rail and the logic interface. For a 3.3 V CAN bus, the SN65HVD230QDR is a direct fit; for a 5 V bus, look at the SN65HVD230 (the 5 V variant) or the TJA1050 itself.