Controller supports up to 16 MLC NAND flash devices - Embedded.com

Controller supports up to 16 MLC NAND flash devices

San Jose, Calif.—Cypress Semiconductor Corp. is sampling a West Bridge peripheral controller with Multi-Level Cell (MLC) NAND flash support that enables designers to use lowest-cost, highest-density flash storage.

The West Bridge Astoria controller supports up to 16 MLC NAND flash devices, which cost approximately three times less than Single-Level Cell (SLC) NAND flash devices for the same storage density, according to Cypress.

Astoria delivers the same High-Speed USB data transfer performance as the West Bridge Antioch controller. For more on Antioch, click here.

Astoria includes a configurable multimedia storage interface and flexible processor interface, easing connections to a broad range of embedded processors and mass storage devices. These features allow the Astoria controller to connect to any embedded processor or DSP, bringing MLC NAND support to new applications, including portable media players (PMPs), wireless cards, dongles, portable navigation devices (PNDs), digital cameras, POS terminals and more.

By fully offloading management of USB and storage from an embedded processor, the West Bridge Astoria peripheral controller saves critical processor resources and maximizes data-transfer performance. The controller marks the debut of Cypress's fast-interleaving N-Xpress MLC NAND flash control technology, with static wear-leveling, bad block management and 4-bit ECC (Error Correction Coding) to support up to 16 SLC/MLC NAND devices.

The storage port can be configured so designers can select up to two SDIO devices such as Bluetooth, WiFi, GPS, and SD cards, making Astoria ideal for applications such as data cards and dongles. Astoria also supports other types of storage from a list that includes Secure Digital High Capacity (SDHC) v. 2.0, MultiMedia Card+ (MMC+) v. 4.2 cards, CE-ATA for HDD, as well as various types of controlled NAND. The flexible processor interface enables connection to most embedded processors adding a selection of Asynchronous SRAM, ADMUX (Address Data Multiplexing), SPI (Serial Peripheral Interface) and NAND interfaces to the Pseudo-CRAM interface of Antioch.

The West Bridge Astoria controller features up to 27 programmable GPIOs and 16 USB endpoints. It comes in a small 100-ball VFBGA (Very Fine Ball Grid Array) package that measures only 6 mm x 6 mm and 0.5-mm pitch. Additionally, Astoria supports standard handset frequencies such as 19.2 MHz and 26 MHz for clock input, removing the need for an additional crystal.

Availability: Currently sampling with SLC NAND support (CYWB0224ABS-BVXI) as well as MLC NAND support (CYWB0224ABM-BVXI). The device is expected to ship in production volumes in the first half of 2008.

Cypress Semiconductor Corp., 1-408-943 2600, www.cypress.com

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