Reliable communication links are the backbone of every modern space mission. From onboard computers to propulsion systems and robotics, every subsystem depends on fast and fault-tolerant data transfer to keep spacecraft operating safely and in sync. Recognizing this need, Microchip Technology has introduced the ATA6571RT Radiation-Tolerant CAN FD Transceiver, a new communication interface designed specifically for space applications.
The ATA6571RT is a step up from traditional Controller Area Network (CAN) devices used in terrestrial and satellite systems. Conventional CAN transceivers are limited to 1 Mbps data rates and smaller payloads, which restrict the bandwidth and efficiency of spacecraft networks. Microchip’s new radiation-tolerant version supports Flexible Data Rate (FD) communication up to 5 Mbps and payloads of up to 64 bytes per frame, dramatically increasing throughput while reducing overall bus load.
Because it is backward compatible with classic CAN, engineers can integrate it into existing architectures without redesigning communication protocols or replacing legacy nodes. This makes it a practical drop-in upgrade for systems that need to scale data rates without losing compatibility.
Beyond raw performance, the ATA6571RT was engineered for reliability. It incorporates Cyclic Redundancy Check (CRC) error detection, short-circuit and overtemperature protection, and low-power management with local and remote wake-up capability. Built to endure the radiation and thermal extremes of space, it offers resilience against Single-Event Effects (SEE) and Total Ionizing Dose (TID) degradation.
The transceiver’s radiation-tolerant (RT) package is pin-compatible with Microchip’s existing commercial off-the-shelf (COTS) versions, simplifying layout and qualification at the PCB level. Typical target applications include platform data handling, sensor bus control, robotic actuation systems, propulsion control, and on-board computers for nanosatellites.
According to Microchip, the ATA6571RT reflects the company’s broader strategy to supply complete communication interface solutions for aerospace and defense. Its space-grade lineup now spans CAN FD, Ethernet, MIL-STD-1553, and SpaceWire, addressing both “New Space” and deep-space mission requirements where reliability, power efficiency, and fault tolerance are non-negotiable.
The ATA6571RT is available now, priced at $210 each in 10-unit quantities, through Microchip sales representatives and authorized distributors.
For design engineers seeking faster, more reliable communication backbones for next-generation space systems, this transceiver delivers a balanced combination of speed, resilience, and heritage-backed design assurance.
