TI introduces the industry’s first DeviceNet-compliant 5-V CAN transceiver

Texas Instruments today introduced a controller area network (CAN) transceiver that exceeds all DeviceNet™ physical layer specifications. The SN65HVD252 supports critical time budgets for latency and readily connects to a 3.3-V microcontroller. Designed for operation in harsh industrial environments, such as factory automation, process control equipment, networked sensors or building automation, this device features bus-pin voltage protection from –36-V to 40-V, driver output current limiting, and over-temperature driver shutdown.



Key features and benefits of the SN65HVD252 and SN65HVD253



· Propagation delay is 10 percent faster than DeviceNet requirements, allowing more flexibility in system timing budgets.



· Hysteresis is 13 percent higher than the competition, providing greater noise immunity.



· Electrostatic discharge (ESD) is two to six times better than the nearest competitor for increased system reliability.



· The SN65HVD253, a similar industrial CAN transceiver, offers a listen-only loopback feature so that the local node controller can synchronize its baud rate with that of the CAN bus.



· Both devices work well with isolation devices such as TI’s ISO7421 digital isolator.