RAD-HARDENED
VA41620
Arm Cortex-M4 Microcontroller
Your Memory Architecture. No Performance Tradeoffs.
The VA41620 swaps the VA41630's integrated non-volatile memory (NVM) for an external Serial Peripheral Interface (SPI) NVM interface, giving system architects the flexibility to use their own radiation-hardened memory while carrying the family's strongest Total Ionizing Dose (TID) protection through the Van Allen belts and beyond.
Specifications
Combining >300 krad(Si) radiation hardness with external memory support, the VA41620 is built for data-demanding missions. It enables engineers to select and scale external radiation-hardened non-volatile memory (NVM) as needed —delivering an adaptable, high-reliability control solution for software-defined radios, primary flight computers, and complex payloads.
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• TID: > 300 krad(Si)
• Soft Error Rate (SER) with EDAC & Scrub
enabled: <1E-15 errors/bit/day
• SEL Immunity: >110 (MeVcm.) /mg @ 125°C
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Core: 1.5 V ± 10%
I/O: 3.3 V ± 10%
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64 KB on-chip Data SRAM
256 KB on-chip Program SRAM
EDAC & Memory Scrubbing
External SPI NVM
External Bus Interface
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104 Configurable GPIO Pins
3xUART Interfaces
3xI2C Interfaces
3xSPI Interfaces
2xCAN 2.0 B
Ethernet 10/100 MAC
Full-Duplex Spacewire Interface
4-Ch DMA Controller
8-Ch ADC (12-bit, 600 ksps)
2-Ch DAC (12-bit)
Integrated Temperature Sensor
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24 Configurable 32-bit Timers
Input Capture, Output Compare, PWM, Counters, and Watchdog Timer -
-55° to 125°C
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• Ceramic QFP176 (20x20 mm)
• Plastic QFP176 (20x20 mm)
• Plastic BGA196 (12x12 mm)
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MEO, GEO, and Deep Space External Mass Memory Controllers Advanced ADCS & Robotics Precision Payloads Software-Defined Radios (SDR) CubeSat & SmallSat On-Board Computers (OBCs) FPGA Reconfiguration & Management
One Design
One Architecture, Two Radiation Profiles
RAD-TOLERANT
Meet the VA42620, the rad-tolerant twin to the VA41620
Prototype on the VA42620, then deploy the VA41620 in the same footprint for Medium Earth Orbit, Geosynchronous orbit, and deep space.
Support
Production qualified and shipping now. Supported by the PEB1 development board and software kit.
