Rad-hard asynchronous SRAMs have embedded ECC

Designed for space and other extreme environment applications, such as edge computing and inference in satellites, requires high performance computing, said Infineon Technologies. The company has introduced its latest radiation-hardened (rad hard) asynchronous static RAMs (SRAMS) to handle near real time analysis and decision making in connected devices.

Data buffering in high performance space computing requires more memory than the on-chip memory of an MCU or FPGA can provide, explained Infineon. The memory must provide a higher level of performance for real time processing applications and have superior radiation performance to meet mission requirements in harsh environments.

The new rad hard SRAMs are available in eight-, 16- and 32-bit wide configurations and offer embedded error correction code (ECC) for single bit error correction. This technology enables the ECC logic to detect and correct single-bit errors in any read data word during the read cycles.
They are designed with Infineon’s patented RADSTOP technology.  This is rad hard through proprietary design and process hardening techniques, meeting all radiation requirements for extreme environments, said Infineon.

The new rad hard SRAMs are QML-V certified, and have access times down to 10ns. According to Infineon, this makes them the fastest option available. They are also claimed to offer the smallest footprint for the highest density and lowest quiescent current.

Infineon said its proprietary RADSTOP memory solutions extend the computing limits of the overall system, while offering size, weight and power advantages for greater design flexibility.

“Radiation effects can cause unavoidable bit errors in SRAMs, and using system-level ECC increases both design complexity and latency,” said Dr. Helmut Puchner, vice president and fellow of aerospace and defense at Infineon. The RADSTOP asynchronous SRAMs memories provide a single-chip solution which meets the radiation performance requirements of the space industry, he added.

The rad hard SRAMs are available now.


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