FRANCE – Media OutReach – 25 May 2020 – Teledyne e2v has announced the DDR4T04G72M — the first radiation-tolerant DDR4 memory chip, featuring a total 4GB capacity. Currently validated at 2133MT/s, and targeting to offer 2400MT/s in the near future, this next-generation solution offers ultra-responsive low latency operation, while fitting into a highly compact form factor. Furthermore, high-reliability manufacturing and radiation-tolerant robustness makes it highly suitable for dealing with the rigors of space environments.
With 15mm x 20mm x 1.92mm dimensions, this new space-grade device comprises an array of Micron based memory chips, integrated in a single package. It features a 72bit bus, where 64bits are dedicated to data and 8bits to error correction code (ECC).
Radiation tests have been performed on these memory chips and a single event effects (SEE) report is available from Teledyne e2v. In particular, the memory has been demonstrated to be single event latch-up (SEL) free up to 60+MeV.cm2/mg.
This new space-grade DDR4 memory enables elevated levels of performance, while taking up minimal board real estate — something that is certain to be of value in highly space-constrained, densely-packed satellite designs. It can be used in conjunction with processors and FPGAs having a DDR4 controller, and is in particular embedded on Teledyne e2v Space version of Qormino® Common Compute Platform together with a space version of NXP LS1046 quad core processor (QLS1046-4GB).
The thermally-enhanced packaging technology accelerates heat dissipation, in order to maintain continued operational reliability. Flight Models will be available up to an extended temperature range of -55°C to 125°C. It is compliant with NASA Level 1 (NASA EEE-INST-002 — Section M4 — PEMs) and ECSS Class 1 (ECSS-Q-ST-60-13C).
“The combination of radiation tolerance, rugged construction and small form factor, make this Radiation Tolerant 4GB DDR4 memory a very appealing solution for integration into space-oriented systems,” states Thomas Guillemain, Marketing & Business Development Manager at Teledyne e2V Semiconductors. “This space-grade DDR4 offers the transition path to newer generations of processing devices required by compute intensive space applications”.
About Teledyne e2v
Teledyne e2v’s innovations lead developments in healthcare, life sciences, space, transportation, defense and security and industrial markets. Teledyne e2v’s unique approach involves listening to the market and application challenges of customers and partnering with them to provide innovative standard, semi-custom or fully-custom solutions, bringing increased value to their systems.