In applications such as drone aerial photography, security monitoring, and industrial inspection, image transmission modules undertake the core task of real-time high-definition video data transmission. The mainstream hardware architecture typically adopts a "sensor + encoder chip + wireless module + storage unit" design, where the storage unit frequently records encoding parameters, status logs, and fault data. Compared with traditional Flash or EEPROM, FRAM (Ferroelectric RAM) leverages its ferroelectric crystal polarization mechanism to achieve microsecond-level write speeds, 10 trillion erase/write cycles, and pre-erase-free operation. This non-volatile technology combined with RAM-like read/write efficiency effectively addresses latency bottlenecks and power consumption challenges in high-speed data stream processing, ensuring stable real-time transmission.
A 16Kbit FRAM acts as a high-frequency data cache and secure log storage core in image transmission modules. This capacity precisely accommodates encoding parameter tables (e.g., H.264/H.265 intra-prediction modes), module status registers (temperature, signal strength), and real-time error codes. Its value is highlighted by three key advantages: First, delay-free write capability with a 1μs write cycle—thousands of times faster than EEPROM—ensures seamless updates of encoding parameters between frames without data loss. Second, near-unlimited endurance of 10 trillion cycles supports 24/7 continuous logging, eliminating lifespan concerns associated with frequent writes. Third, ultra-low power consumption at 150nJ per byte (less than 1/400th of EEPROM) significantly extends battery life in devices like drone transmission systems. Additionally, FRAM’s industrial temperature range (-40°C to 85°C) guarantees long-term stability for outdoor equipment in extreme environments.
Fujitsu’s MB85RS16PNF-G-JNERE1 is a 16Kbit serial FRAM featuring an SPI interface and 8-pin SOIC package, operating at 2.7V–3.6V. Based on ferroelectric technology, it achieves full-speed read/write operations at 20MHz within -40°C to 85°C. Key parameter comparisons underscore its superiority:
Parameter | MB85RS16PNF-G-JNERE1 | Typical EEPROM | Advantage |
Write Speed | 1μs/byte | 5–10ms/byte | Prevents encoding latency, enhances real-time performance |
Endurance | 10 trillion cycles | 1 million cycles | Supports lifelong logging without replacement |
Write Power | 150nJ/byte | 60μJ/byte | Reduce overall system energy consumption and extend the battery life of portable devices |
Data Retention | 45 years (@25°C) | 10–40 years | Ensures long-term security of configuration parameters |
Interface | Standard SPI | Requires timing adaptation | Direct EEPROM replacement, simplifies hardware design |
The chip integrates a write-protection latch to lock critical data areas via hardware pins, preventing accidental parameter modification. Its infinite random write capability allows the module to record dynamic data (e.g., packet loss rates, signal fluctuations) at any frequency without wear. Even under high temperatures (e.g., from prolonged drone operation), FRAM maintains data integrity, outperforming Flash in thermal stability. As Fujitsu’s authorized agent, MANDU Technology provides end-to-end support—from chip selection and SPI timing debugging to high-temperature testing—including free samples, reference designs, and production-level failure analysis to accelerate R&D cycles.
For image transmission module engineers, the Fujitsu MB85RS16PNF-G-JNERE1 FRAM offers an ideal storage solution with its high-speed writes, ultra-durability, and low power consumption. Its SPI interface seamlessly connects to mainstream encoders (e.g., HiSilicon, Ambarella), while the 16Kbit capacity aligns perfectly with parameter storage needs. Combined with industrial-temperature adaptability, it ensures long-term reliability for outdoor applications. Through MANDU Technology’s localized services, engineers can quickly access customized support, embedding "zero-delay, zero-wear" storage capabilities into next-generation HD transmission systems.
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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