Precision temperature sensor for DDR5 memory modules

Renesas Electronics offers a new precision temperature sensor, the TS5111, aimed at DDR5 memory modules as well as a multitude of other applications including SSDs, computing motherboards, and communications equipment that demand accurate, real-time temperature monitoring. The new JEDEC-compliant temperature sensor allows memory modules and other temperature-sensitive systems to operate at peak efficiency and reliability with real-time, closed-loop thermal management algorithms.

The sensor performs a critical role in producing accurate, high-precision system temperatures with programmable warning flags that allow systems to exercise thermal control loop mechanisms such as fan speeds, memory refresh rates, and bandwidth throttling. Measuring just 0.8mm x 1.3mm, the device is ideal for small form factor systems as well as applications including memory and storage modules where proximity sensing is crucial for reliable operation. The device supports I²C, SMBUS, as well as the new I3C Basic protocol for data rates up to 12.5MHz and other advanced characteristics like in-band interrupts, parity check, and packet error checks.

“We are proud to deliver the first JEDEC-compliant thermal sensor device for DDR5, which is currently in qualification with our key customers and ecosystem partners,” said Rami Sethi, vice president, Data Center Business Division at Renesas. “The TS5111 has the potential to coalesce the entire computing industry around a single thermal sensor solution that supports the latest high-speed control bus interface and complies with an industry-standard specification.”

The device joins a complete family of DDR5 solutions that allow companies to develop DDR5 DIMM solutions.