Industrial-grade PSRAM is fully compatible with mainstream HPLC chips, empowering the digital upgrade of power grids.
At present, HPLC (High-Speed Power Line Carrier) technology for smart grids has been widely deployed. As the core component for power data acquisition and transmission, the performance of HPLC chips directly determines the efficiency and quality of power grid digital upgrading. With the widespread adoption of advanced functions by the State Grid such as minute-level data collection, transformer area topology identification, and HPLC+HRF dual-mode concurrency, bottlenecks of traditional HPLC chips—including insufficient on-chip SRAM capacity and limited read/write speed—have become increasingly prominent, severely restricting chip performance. The emergence of
PSRAM (Pseudo-Static Random Access Memory) precisely addresses this industry pain point, acting as a "performance multiplier" for HPLC chips and providing core support for smart grid communication upgrades.
As the "data hub" of smart grids, HPLC power line carrier chips undertake multiple core tasks including massive power data collection, signal processing, protocol parsing, and security encryption. Currently, the total data volume of single-frame power data plus communication protocol stacks and topology tables has exceeded 1MB. Scenarios such as high-frequency collection, multi-node concurrency, and dual-mode parallel operation impose extremely high requirements on memory capacity, bandwidth, and latency. However, traditional HPLC chips are typically equipped with only 256KB–512KB of on-chip SRAM, far from meeting the demands of parallel multi-tasking. This easily leads to data packet loss, collection failures, reduced topology identification accuracy, and other issues, seriously hindering the digital upgrading of power grids.
Featuring a unique design combining high-density DRAM capacity with a simple SRAM-compatible interface, PSRAM is perfectly suited for HPLC chip applications with outstanding technical advantages:
First, large-capacity support. Available in 64Mbit (8MB) and 128Mbit (16MB) mainstream densities, it easily caches hundreds of frames of messages and complete transformer area topology data, completely resolving the industry-wide memory shortage.
Second, high bandwidth and low latency. Adopting a QSPI interface with bandwidth exceeding 84MHz and read/write latency below 20ns, it supports linear burst and cross-page read operations, enabling real-time buffering of signal processing data and seamless interaction with DSP and CPU with zero wait states, greatly improving data processing efficiency.
Third, easy integration. It requires no additional refresh controller, features a small footprint and few pins, and directly matches the PCB design of HPLC chips, effectively reducing module development difficulty and production costs.
Targeting practical HPLC applications, our company has launched specially optimized industrial-grade PSRAM products, fully compatible with mainstream HPLC chips including Hisilicon Hi3931, Chuangyao TR3540, Neusoft ES3320, Dingxin TC3008, Chipown Microelectronics, Lihemicro LME2980, and others. They support seamless integration with chip communication protocols and operating requirements without modifying drivers or PCB layouts, enabling rapid deployment. Additionally, these products deliver excellent low-power performance with standby power consumption below 250μA, ideal for low-power designs in power terminals such as smart meters and concentrators, ensuring long-term stable operation in complex power grid environments.
Technically, PSRAM is far more than a simple memory expansion solution for HPLC chips; it is core infrastructure for improving the stability and reliability of power line carrier communications. Its widespread application unlocks the full potential of HPLC chips, enabling high-frequency collection, efficient transmission, and parallel multi-tasking. It solidifies the technical foundation for the digital and intelligent upgrading of smart grids and has become a key enabling component for the large-scale deployment of HPLC power line carrier technology.
For samples, datasheets, detailed adaptation solutions, or professional technical support, please contact us to jointly empower the high-quality development of smart grids.
Hotline: 150-1290-5940
Technical Support: sales@manduic.com
Official Website:
www.manduic.com