The news signifies a major step forward in the ground-breaking project - after sampling successfully led to widespread design-in activity and adoption of this technology. Consequently, the company is moving into the mass production phase, with the space-grade radiation-tolerant DDR4s now being made available.
With a 4GByte storage capacity, and dimensions of just 15mm x 20mm x 1.92mm, the DDR4s exhibit a high storage density while only taking up half of the PCB real estate, and almost an order of magnitude less volume. Maintaining elevated performance on an ongoing basis, they are able to deliver data transfer speeds of 2.4GT/s.
Teledyne e2v DDR4T04G72 memory, which is supplied in a multi-chip package format, features expansive bus capabilities, where 64bits are assigned to data transfer and an additional 8bits for error correction. The DDR4T04G72 is an optimal companion for the company’s Qormino processors and they are also compatible with the vast majority of processors, SoCs and FPGAs from other vendors.
Due to their high reliability construction and high degree of radiation tolerance, these devices are seen as an important resource for space-deployed edge computing platforms. Radiation testing and characterization conducted on these DDR4s show that their single event latch-up (SEL) threshold is greater than 60MeV.cm²/mg. Their single event upset (SEU) and single event function interrupt (SEFI) data also exceeds 60MeV.cm²/mg, and they have demonstrated resilience to 100krad total ionizing dose (TID).
Teledyne e2v’s DDR4s can be ordered in both industrial temperature range (-40°C to 105°C) and military temperature range (-55°C to 125°C), and up to NASA Level 1 (based on NASA EEE-INST-002 - Section M4 - PEMs).
According to the company, this will mean that a greater breadth of potential applications can be addressed.
“We are recognised as leading the way in elevated density radiation tolerant memory for space applications, and our technology has already been incredibly well received by the market,” said Thomas Guillemain, Marketing & Business Development Manager at Teledyne e2v. “The space industry is presented with an assured supply of compact, easy to interface memories that raise the performance benchmark.”
