CAN transceiver in a compact SOT-23-8
The Texas Instruments TCAN332DCNR is a single-wire CAN transceiver that interfaces a CAN protocol controller with the physical two-wire differential bus. The supply range of 3V to 3.6V aligns with 3.3V CAN systems, common in industrial and automotive auxiliary networks that don't carry the full 5V legacy rail. The 120 mV receiver hysteresis gives the bus interface a clean noise margin on a shared twisted pair, which matters in a motor-drive cabinet or near a switching power supply. The SOT-23-8 footprint matches the industry-standard pinout for this class of CAN transceiver, so a layout swap from a similar part is a straight BOM change without a board respin.
The ROHS3 compliance is current, so no exemption expiry to manage.
The receiver hysteresis of 120 mV is a spec that separates a reliable CAN node from one that glitches on a marginal bus. CAN is a differential bus that relies on common-mode rejection, but real-world cables pick up coupled noise from adjacent PWM lines or relay coils. That 120 mV of hysteresis means the receiver won't toggle on sub-threshold noise — it waits until the differential signal crosses a clean threshold. In a layout with long stub lengths or a non-ideal termination, this hysteresis budget is what keeps the CRC errors off the log.
Sourcing this part for a production BOM
The TCAN332DCNR is an active, catalog-standard part from TI. For dual-source planning, the TCAN332 family includes multiple package options — the DCNR suffix specifically identifies the SOT-23-8 variant in tape-and-reel, which is the standard ordering code for volume production.