LONDON – STMicroelectronics NV, Europe's largest chip company, has introduced a 16-kbit memory that can also harvest enough energy to enable small electronic items using it to become battery-free electronic applications.
The M24LR16E EEPROM is part of ST's RFID/NFC range of memories. It is a dual-interface memory that offers 40 years of data retention, 1 million write/erase cycles and an RF interface operating at 13-56-MHz compatible with RFID reader-writers and ISO15693-capable NFC devices.
The RF interface is also able to harvest ambient radio wave energy emitted by RFID reader-writers and convert those waves into a voltage output that may be used to power other electronic components. A Vout analog pin is provider for this purpose but ST did not provide quantitative details of the output capabilities of the energy harvest system. The M24LR16E itself requires a 1.8 to 5.5-V supply.
ST has demonstrated the possibilities of designing with the M24LR16E energy-harvesting wireless memory by illuminating indicator LEDs as well as by powering its battery-less STM8L-based low-power microcontroller development kit. Other potential applications include e-paper devices such as electronic shelf labels, as well as industrial automation, sensing and monitoring systems, and personal healthcare product, ST said
ST said thatRFID is now used in supply-chain and retail businesses, and that NFC technology will be included in more than 500 million mobile phones sold annually by 2015, citing ABI Research as its source.
The M24LR16E is in volume production now and available in SO8, TSSOP8 or MLP8 surface-mount packages. Prices are $0.60 in SO8 http://cms.eetimes.com/ContentCreator/SelectContentItemTypeand TSSOP8 and $0.66 in MLP8, for orders over 1000 pieces.
Related links and articles:
Power supply design impregnated into textiles
MIT and ST co-develop low power SoC MPU
Swatch chip arm qualifies Bluetooth LE chip
IEDM seeks to reap the energy harvest
MIT researchers simplify energy harvesting device