Product category: Memory Devices and Modules
News Release from: GD Technik | Subject: AT49LD3200 and AT49LD3200B
Edited by the Electronicstalk Editorial Team on 24 October 2001
32bit-wide Flash raises
density and cuts costs
GD Technik has introduced the latest series of high density, high-speed Flash SDRAM devices from Atmel, called the SFlash family
Atmel is the first company to ship production volumes of this type of SDRAM interface Flash memory. With its introduction, GD Technik gives designers the advantages of a unique 32bit-wide databus configuration combined with execute-in-place (XIP) Flash memory allowing reductions in cost, enhanced performance and quicker design turnaround times.
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These benefits make the unit ideal for applications such as: printers, networking products, set-top boxes, digital televisions and car navigation systems.
By incorporating high-speed XIP Flash memory onto the same 32bit-wide databus, the need for an asynchronous memory bus and all the associated interface pins and control logic is eliminated.
The SFlash family is pin and read compatible with synchronous mask ROMs, providing designers with a technology migration path over the life of their product.
Further reading
Easy route to MCU in-system programming
Atmel's PC-based FLIP software tool is specifically designed to improve the flexibility, power and user-friendliness of in-system programming for the company's C51 Flash microcontrollers
The first two members of the SFlash family, the AT49LD3200 and AT49LD3200B, are both 32Mbit devices and operate at frequencies up to 100MHz, making them the fastest 32Mbit Flash memory devices available in the world.
GD Technik's product marketing manager Kim Allen said: "The SFlash is the only Flash memory on the market today which allows designers of 32bit systems to use a single Flash device rather than having to incorporate two 16bit Flash devices.
Savings in cost and board space can be realised while system performance is dramatically improved at the same time".
The AT49LD3200B features a 32Kbit independent asynchronous boot block that permits the SFlash to power up in an asynchronous mode, allowing the system processor to configure the burst length and type as well as the appropriate latencies to match with the system clock frequency before switching the flash to full synchronous mode.
Unlike the AT49LD3200, the AT49LD3200B powers up with the asynchronous boot block always active, which is ideal for processors that must boot from an asynchronous memory device.
The devices are packaged in an 86-lead TSOP (type ll) and offered in both commercial and industrial temperature ranges.
Speed grade versions of 50, 75 and 100MHz are available in both temperature ranges.
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