Cypress's FRAM safeguards Beidou terminals in harsh environments.

In the extensive application of the Beidou Satellite Navigation System, terminal devices undertake key tasks such as positioning, time synchronization, and data transmission, covering multiple fields including transportation, precision agriculture, disaster monitoring, and marine fisheries. These devices need to operate stably for a long time in complex environments, imposing strict requirements on the reliability, real-time performance, and durability of storage modules. In the current mainstream hardware solutions, EEPROM or Flash is often selected for non-volatile memory. However, their shortcomings such as slow write speed and low durability (usually only in the millions of cycles) make it difficult to meet the needs of Beidou terminals for frequent recording of location trajectories, sensor data, and system logs. In contrast, the FRAM (Ferroelectric Random Access Memory) technology launched by manufacturers such as Fujitsu and Cypress stands out. With its fast read and write performance close to that of DRAM (nanosecond-level delay), ultra-high durability (10^12 read and write cycles), and extremely low power consumption characteristics, it has become an innovative choice for the storage solutions of Beidou terminals. It can complete data saving instantly when the power is cut off, avoiding the risk of data loss caused by unexpected power outages in traditional memories, and is particularly suitable for mobile scenarios such as vehicle navigation and field monitoring devices.

The core value of FRAM in Beidou terminals is reflected in the dual improvement of data integrity and system efficiency. Taking the real-time positioning data recording as an example, Beidou terminals need to write coordinate information multiple times per second. If EEPROM is used, its millisecond-level write delay and limited lifespan will lead to data accumulation and even the failure of storage units. However, the FRAM's write speed of 550 nanoseconds and near-infinite durability can easily handle high-frequency data streams while reducing the power consumption burden. In addition, Beidou devices are often deployed in extreme environments ranging from -40°C to 85°C. The wide temperature adaptability of FRAM ensures the stability of data storage and avoids performance degradation caused by temperature fluctuations. In Internet of Things nodes or portable devices with limited power supply, the characteristic of FRAM with a standby current as low as the microampere level further extends the device's battery life.

In response to the strict requirements of Beidou terminals for storage performance, Cypress's CY15B104Q-LHXIT FRAM chip demonstrates significant advantages. This product provides a storage capacity of 4Mb, supports the SPI interface, and has a maximum clock frequency of 40MHz, enabling full-speed data read and write, meeting the ultimate requirements of Beidou terminals for real-time performance. Its operating voltage range covers from 1.8V to 3.6V, seamlessly matching low-power main control chips, and the current in standby mode is only 1.5μA, significantly optimizing system energy efficiency. The quadrillion-level durability of CY15B104Q-LHXIT directly reduces the maintenance cost of Beidou terminals throughout their life cycle. Calculated based on 100,000 data writes per day, its theoretical service life can reach 2739 years, completely eliminating the need to replace the storage module. The data retention ability exceeds 10 years in an 85°C environment, completely solving the problem of data archiving for long-term outdoor devices. As an official partner of Cypress's FRAM products, MANDU provides all-round support for Beidou terminal R&D enterprises, including selection guidance, customized technical solutions, rapid sample supply, and mass production guarantee, helping customers shorten the development cycle and quickly achieve product implementation.

For R&D engineers, adopting Cypress's FRAM in the design of Beidou terminals is a crucial decision to enhance product competitiveness. Choosing CY15B104Q-LHXIT means bringing the maintenance cost of the storage module to zero: its industrial-grade durability design can withstand 274 million data impacts per day. Combined with the 1.8V ultra-low voltage operation mechanism, it increases the reliability of Beidou terminals throughout their life cycle by three orders of magnitude. As a technical backing, MANDU further reduces the integration threshold of FRAM, providing escort from prototype verification to mass production. In the context of the Beidou System moving towards global application, choosing the Cypress FRAM solution verified by the market is not only an inevitable path for technological upgrading but also a strategic choice for creating differentiated products. 

About Mandu Technology

Shenzhen Mandu Technology Co., Ltd. has steadfastly centered its operations on the distribution of high-performance, high-quality, and highly reliable integrated circuit products. Its portfolio encompasses memory chips, differential crystal oscillators, and MCU microcontrollers, while progressively integrating analog signal chain products. The company prides itself on delivering comprehensive and cost-effective solutions to its customers. Its products find applications across a broad spectrum of industries, including but not limited to network communication, industrial control, robotics, medical equipment, personal health, and numerous other fields.

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