Longer-lasting EEPROMs for simpler, tougher systems

22nd July 2013

ES Admin

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STMicroelectronics has announced the M24C32-RMN6TP and M95320-DRMN3TP/K EEPROMs. The new EEPROMs guarantee endurance of up to 4 million erase/write cycles, four times more than the 1 million cycles offered by competing devices. This gives design engineers greater freedom to update stored data more frequently and extend system lifetime, even at high temperatures.

The key to the enhanced endurance offered by the new EEPROMs lies with ST’s advanced CMOSF8H 0.15 µm process. Available in industrial or automotive-qualified variants, the new devices provide specified endurance of 4 million cycles per byte at 25°C, and 400,000 cycles per byte at 150°C. Total device endurance is characterized at 1,000 million cycles, and specified data retention is 200 years at 55°C.

The extended cycling performance and longer data retention simplify design by allowing storage of frequently updated data as well as slow-changing parameters, avoiding memory-hungry strategies for extending the lifetime of standard EEPROMs.

In addition, the total endurance allows use in applications such as automotive or medical systems that must update key parameters frequently as environmental conditions change (data-logging).

Samples are available immediately, and ST is now taking orders for production quantities. Industrial devices are priced from $0.20 for the 32Kbit I²C M24C32-RMN6TP, and automotive devices from $0.54 for the 32Kbit SPI M95320-DRMN3TP/K.