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To: Don Green who wrote (86251)5/5/2003 1:09:36 PM
From: Don Green  Respond to of 93625
 
Cypress, Infineon, Micron PSRAM Partnership Shows Results
Online staff -- 5/5/2003
Electronic News


Cypress Semiconductor, Infineon Technologies and Micron Technology today announced fruition of a pseudo-static RAM (PSRAM) co-development partnership formed in 2002.

The team has made samples of 32Mbit devices, dubbed CellularRAM, for 2G and 3G wireless handsets available in both asynchronous and burst modes.

Micron said that the memory has the same voltage range, package and ball assignment as asynchronous low-power SRAMs currently used in cell phone designs, and that the compatible architecture aims to provide designers a smooth transition from SRAM to CellularRAM products.

The co-development effort between Cypress, Infineon and Micron is based on a jointly developed specification for CellularRAM memory. Each company is manufacturing products using their own design and process technologies and product development timetables. In addition to 32Mbit density components, the co-development roadmap includes plans for 16Mbit and 64Mbit density components.

Micron is currently sampling the 32Mbit and 64Mbit devices, with full production expected in Q3. Infineon is currently sampling the 32Mbit with full production expected in Q3. And Cypress plans to have samples available in the first half of 2004.

"Supported by leading memory manufacturers, the CellularRAM product family is poised to become the preferred solution for emerging high-performance handset applications," said Ernst Strasser, Infineon's director of marketing for specialty DRAM, in a statement.

Based on a DRAM cell, the 32Mbit CellularRAM samples currently available operate at up to 104MHz clock rates with low initial latency of 70ns and can achieve up to 208Mbytes/sec. (1.5Gbits/sec.) of peak bandwidth, the trio said. The samples are organized as 2 Meg x 16. The 16Mbit and 64Mbit density components are organized as 1 Meg x 16 and 4 Meg x 16.

For multiple source compatibility, the companies said they are now analyzing and validating each manufacturer's sample products for final verification. The CellularRAM co-development members also said they are jointly working on the definition of the next generation of the CellularRAM product family, a 128Mbit device, targeted for sampling in second half of 2004.