May 12, 2022, Shanghai News – Shanghai Fudan Microelectronics Group Co., Ltd. launched a low-power ultra-wide voltage FM24LNXXX series I2C serial EEPROM memory, which can meet the needs of CCM, white electricity, electricity meter instruments, 5G communication, automotive and other related Application requirements in the application area.
The first capacity of this series includes two models, FM24LN64 (64Kbit) and FM24LN128 (128Kbit). The product supports an ultra-wide operating voltage range of 1.1V~5.5V, the temperature covers -40°C~+85°C, and supports 400KHz/1MHz operating frequency within the full voltage range. The typical standby current at 5.5V is less than 1uA, and the read and write current does not exceed 0.8 mA, the product meets the high reliability requirements of 4 million erasing and writing times and data retention for 100 years. In addition, FM24LNXXX series products will cover 64Kbit~2Mbit capacity, of which the maximum operating frequency of 256Kbit~2Mbit capacity new products will be extended to 3.4MHz High speed mode, which can meet the needs of customers for faster read and write access speed.
Ultra-wide working voltage range: At present, the mainstream EERPOM working voltage range at home and abroad is 1.7V~5.5V. Fudan Micro’s FM24LNXXX series ultra-wide working voltage range (1.1V~5.5V), low power consumption design, support 1.2V/1.8V /3.3V/5.5V and other mainstream applications, compatible with 400KHz/1MHz clock in the full voltage range.
Special optimization for CCM applications: FM24LNXXX series directly supports 1.2V/1.8V two IO voltage applications, meeting the new application requirements of CCM, and facilitating user stocking and inventory management. The IO and VCC voltages are the same, and the EEPROM power supply can reuse one digital power supply (such as VDD12) on the CCM module to reduce the power wiring overhead on the PCB.
High reliability index characteristics: The product development team has specially optimized the design of the EEPROM memory read and write circuit according to the characteristics of the tape-out process platform and the deep understanding of the working principle of the memory product, realizing that the FM24LNXXX series has 4 million erasing and writing cycles. High reliability index characteristics of life and 100-year data retention time.
Other product functions: FM24LNXXX series supports byte write, page write, current address read, free read, sequential read and other operation modes; it has the function of device address configuration, supports up to 8 EEPROMs on the I2C bus; Trigger filter to suppress noise; with internal timing (max 5ms) function of erasing and writing time and software protection function (SWP).
In terms of packaging, the FM24LNXXX series supports SOP8/TDFN/TSSOP/WLCSP and other packages. The WLCSP package supports two specifications of 400um*400um and 400um*500um Ball Pitch. In terms of control and traceability, the FM24LNXXX series has an additional one-page read-write Security Sector security area, as well as a 128-bit read-only unique identification code written by the manufacturer, which is convenient for product traceability.
The key indicators such as AC, DC and reliability of FM24LNXXX series memory will be completely benchmarked against the industry benchmark, and some indicators will lead the industry. It is expected that the product will promote the rapid increase of Fudan Microelectronics EEPROM market share in automotive electronics, high industrial standards and mobile phone camera modules.
In addition, FM25NXXX (SPI interface) series EEPROM memory is also under development, the working voltage will cover 1.7V~5.5V, the capacity will cover 64Kbit~4Mbit, the temperature supports -40℃~+125℃, the maximum support 20MHz operating frequency, 4 million times Erase and write life and 100-year data retention time. Fudan Microelectronics will also launch a full range of automotive-grade EEPROMs that meet the requirements of AEC-Q100 Grade1.
After 22 years of iterative polishing, Fudan Microelectronics FM24CXXX, FM25XXX, FM93CXX and other series of wide-voltage serial EEPROM products have formed a mature product line covering 1Kbit~1Mbit capacity and I2C/SPI/Microwire interface. assessment. Fudan Microelectronics ranks among the top in the market share of EEPROM production management and control capabilities as well as tape-out, packaging and testing mass production supply capabilities in the subdivisions of electric meters, home appliances, and industrial control.
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