64-, 128-Kbit parts complete ST miniature serial EEPROM line

Geneva—STMicroelectronics claims that it is the first to offer a complete serial EEPROM portfolio from 2-Kbit to 128-Kbit in both I²C and SPI versions, with all family devices benefiting from space-saving Micro Leadframe (MLP) package technology.

Three devices in the 2 x 3 x 0.6mm MLP8 package now allow designers to choose from footprint-compatible devices at any required density, saving space, cost and development time.

According to ST, the M95128 is the first 128-Kbit SPI device to reach the market in the MLP8 package size. The device has a sub-3µA stand-by mode, allowing its use in energy-sensitive battery-powered products. The four-wire SPI interface supports communication at up to 2 Mbit/s, and also allows software-based write protection, in addition to standard protection implemented in hardware.

The 64-Kbit M24C64 and 128-Kbit M24128 complete ST's family of I²C devices in the MLP8 package, which the company first announced in March 2007. For more on that story, click here.

The built-in I²C interface supports 400-Kbit/s Fast Mode communication, operating as a slave on the I²C bus. Both devices reduce current draw to below 1 micron A in stand-by mode, to help extend battery life in portable and handheld products.

Applications include Bluetooth headsets and modules, wireless LAN adapters, portable media players, cellular handsets and smart phones, camcorders and digital still cameras. From a system designer's point of view, the operating voltage range is compatible with virtually all ASICs and chipsets. The M24C64 and M24128 are specified to operate with power supplies as low as 1.7V.

Other features include: a write-control input, byte- and page- write modes, random and sequential read modes, self-timed programming cycle and automatic address incrementing. Device lifetime is greater than one million write cycles, and data retention more than 40 years.

Pricing: In 1,000-unit quantities, the M24C64-FMB6TG is $0.24; the M24128-FMB6TG is $0.34, and the M95128-RMB6TG is $0.48.
Availability: Now.
Datasheets: M95128, M24C64 and M24128.

STMicroelectronics, www.st.com