GR716 - Rad-Hard LEON3FT Microcontroller
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| The GR716 is a rad-hard fault-tolerant microcontroller. With its support for many different interfaces and its market-leading radiation resilience, the GR716 is ideally fit for handling supervision and control tasks in any high-reliability application. | The GR716 is manufactured in two alternatives, the GR716A and the GR716B. While the two devices have a different set of capabilities, they are pin-compatible and are implemented in the same robust package. | |
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The system on chip is based on the LEON3 SPARC V8 microprocessor with a long heritage in the space industry and the ability to leverage industry standard compilers, kernels and development tools. Quick Links |
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Product table
| DEVICE | GR716A | GR716B |
| Max Frequency | 50 MHz | 100 MHz |
| On-Chip RAM | 192 KiB | 192 KiB |
| Support for single 3.3V supply | Yes | Yes |
| Processor | LEON3FT | LEON3FT |
| Real-Time Accelerator (RTA) | No | Yes, 2x |
| Off-chip Memory | PROM/SRAM/SPI with EDAC | PROM/SRAM/SPI with EDAC |
| SpaceWire | 2x Endpoints | Router (2x external, 1x internal ports) |
| MIL-STD-1553 | Yes | Yes |
| CAN | 2x CAN 2.0 controllers | 1x CAN-FD controller |
| PacketWire with CRC | Yes | Yes |
| I2C | Yes | Yes |
| FPGA supervisor | No | Yes |
| Ethernet | No | 10/100 Mbit/s |
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ADC |
2x 11bits resolution @ 200ksps |
4x ADC 11bits/14bits @ 500Ksps |
| DAC | 12bit @ 3Msps, 4 channels | 12bit @ 3Msps analog DAC, 4 channels |
| Fast analogue comparators | No | 20x |
| PWM-DAC | No | Yes, 8x |
| Availability | Flight models available | Prototypes in 2024 |
Software ecosystem
The GR716 is supported by a wide range of software tools. We provide compiler toolchains and development tools with GR716-specific support such as BSP, debugger support and simulator of CPU/IO models. The Bare-metal environment is free and open-source.
The software development environment of the GR716 consists of the following software components: