industry news
Subscribe Now

Renesas Introduces JEDEC-Compliant Precision Temperature Sensor for DDR5 Memory Modules

New IC Joins a Complete Family of DDR5 DIMM Solutions that Include the Registered Clock Driver, Power Management IC and SPD Hub

TOKYO, Japan, May 5, 2020 ― Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today announced a new precision temperature sensor, the TS5111, targeting DDR5 memory modules as well as a host of other applications such as solid-state disks (SSDs), computing motherboards, and communications equipment that require accurate, real-time temperature monitoring. The new JEDEC-compliant temperature sensor enables memory modules and other temperature-sensitive systems to run at peak efficiency and reliability with real-time, closed-loop thermal management algorithms.

The TS5111 plays a critical role in providing accurate, high-precision system temperatures with programmable warning flags that enable systems to exercise thermal control loop mechanisms such as memory refresh rates, fan speeds, and bandwidth throttling. Measuring a mere 0.8 x 1.3mm, the TS5111 is well suited for small form factor systems as well as applications such as memory and storage modules where proximity sensing is critical for reliable operation. The TS5111 supports I²C, SMBUS, as well as the new I3C Basic protocol for data rates up to 12.5 MHz and other advanced features 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 TS5111 joins a complete family of DDR5 solutions that enable companies to develop DDR5 DIMM solutions. The current Renesas DDR5 RDIMM ICs include the registered clock driver 5RCD0148HC1, power management IC P8900, and SPD Hub SPD5118.

Key Features of the TS5111 Temperature Sensor

  • Complies with the JEDEC JESD302-1 serial bus thermal sensor device specification
  • Temperature sensor accuracy

−         Typical 0.5 °C in 75 °C < TA < 95 °C range

−         Typical 1.0 °C in 40 °C < TA < 125 °C range

−         Typical 2.0 °C in -40 °C < TA < 125 °C range

  • Two-wire bus serial interface (I²C and I3C operation modes)
  • Up to 12.5 MHz transfer rate
  • 1.8 V & 1.1 V power supply input
  • Packet error check and parity error check functions
  • Bus reset function
  • Two unique addresses selected by SA pin
  • In band interrupt

Availability

The TS5111-Z1AHRI8 temperature sensor is available now in a 6-ball WLCSP package and is sampling to qualified customers. For additional information visit www.idt.com/TS5111.

About Renesas Electronics Corporation

Renesas Electronics Corporation (TSE: 6723) delivers trusted embedded design innovation with complete semiconductor solutions that enable billions of connected, intelligent devices to enhance the way people work and live. A global leader in microcontrollers, analog, power, and SoC products, Renesas provides comprehensive solutions for a broad range of automotive, industrial, Infrastructure, and IoT applications that help shape a limitless future. Learn more at renesas.com. Follow us on LinkedInFacebookTwitter, and YouTube.

Leave a Reply

featured blogs
May 6, 2026
Hollywood has struck gold with The Lord of the Rings and Dune'”so which sci-fi and fantasy books should filmmakers tackle next?...

featured paper

Quickly and accurately identify inter-domain leakage issues in IC designs

Sponsored by Siemens Digital Industries Software

Power domain leakage is a major IC reliability issue, often missed by traditional tools. This white paper describes challenges of identifying leakage, types of false results, and presents Siemens EDA’s Insight Analyzer. The tool proactively finds true leakage paths, filters out false positives, and helps circuit designers quickly fix risks—enabling more robust, reliable chip designs. With detailed, context-aware analysis, designers save time and improve silicon quality.

Click to read more

featured chalk talk

GaN for Humanoid Robots
Sponsored by Mouser Electronics and Infineon
In this episode of Chalk Talk, Eric Persson and Amelia Dalton explore why power is the key driver for efficient and reliable robot movements and how GaN technologies can help motor control solutions be more compact, integrated and efficient. They also investigate the role of field-oriented control in humanoid robotic applications and why the choice of a GaN power transistor can make all the difference in your next humanoid robot project!
Apr 20, 2026
25,037 views