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ST unveils NOR Flash memory solutions for mobile apps

Posted: 17 Jul 2006 ?? ?Print Version ?Bookmark and Share

Keywords:ST? STMicroelectronics? AD MUX I/O? NOR Flash memory?


STMicroelectronics has announced a new family of Address-Data Multiplexed Input/Output (AD MUX I/O) devicesa complete range of NOR Flash memory solutions tailored specifically for cost-efficient, value-sensitive mobile platforms.

The device's architecture introduces pin sharing between data and addresses, said ST, reducing the number of pins required by the memory chip and consequently adding cost savings for the microprocessor system. The additional savings will provide cellular phone manufacturers with a considerable competitive advantage, especially for mobile applications for which cost is an essential element in successful market penetration.

According to the company, the AD MUX I/O architecture allows either an increase of data bus width with no pin count increase or a reduction in pin count without loss of performance. The smaller package mechanical dimensions than might otherwise be used, and the consequent reduction in printed-circuit board size, lowers costs for handset manufacturers, ST explained.

The AD MUX I/O portfolio includes both standalone and subsystem solutions, based on one-bit and two-bit-per-cell technology, which accommodates increasing memory density with optimized die size in 130nm and 90nm manufacturing technologies. The family offers Burst Mode and Multiple Bank architectures, and are available in LFBGA88 (8-by-10mm), LFBGA107 (8-by-11mm), or VFBGA44 (7.5-by-5mm) packages.

The standalone NOR Flash memories range from 16- to 64Mbit densities in one-bit-per-cell technology, and from 128- to 256Mbit densities in two-bit-per-cell technology.

The subsystem solutions include the following initial combinations: 128Mb NOR Flash + 64Mbit PSRAM (M36L0R7060L1/U1); and, 128Mb NOR Flash + 32Mbit PSRAM (M36L0R7050L1/U1). Additional subsystem solutions (64Mbit Flash + 32Mbit PSRAM, 64Mbit Flash + 16Mbit PSRAM, 32Mbit Flash + 16Mbit PSRAM) will be available soon to complete the portfolio.

Samples are available today, with volume production planned for Q3 2006.

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