GR716 - Rad-Hard LEON3FT Microcontroller

gr716a & gr716b
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.

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

 

leon

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

ADC

2x 11bits resolution @ 200ksps
8 differential/16 single-ended channels

4x ADC 11bits/14bits @ 500Ksps
8 differential/16 single-ended channels

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: