A Precise Measurement Platform for LPDDR4 Memories

LPDDR4, the most widely used low-power DRAM standard in the industry, plays a crucial role in modern system design. Understanding the non-functional properties of these DRAMs such as power consumption and reliability is essential for accurate system design, as the values reported in vendor's data sheets tend to be overly pessimistic compared to real-world performance. This research paper aims to characterize LPDDR4 memories of the three major vendors by conducting retention time and current measurements. To achieve these results, a custom measurement platform was developed, capable of precisely heating up the DRAM within a range of ±1.0°C.