Atmel claims it offers the only commercially-available FPGA configuration ICs to provide single-chip configuration storage for FPGAs with as many as 8-million gates. The 32-megabit AT17F32 and AT17F32A have four times the density of any commercially available device, says Atmel.
The AT17F32 can store all 29 Mbits of configuration data required for Virtex II XC2V6000, XC2V8000 and Virtex II Pro XC2VP50 and XC2VP70 FPGAs. The AT17F32A provides single-chip storage for APEX EP2A70, Stratix EP1S60 and EPS180 and Stratix II FPGAs.
AT17F32/A devices have a memory paging capability that also allows the single-chip storage of up to four different FPGA bit streams, reducing chip count and board real-estate in multiple FPGA systems. This capability is particularly useful in high resolution video entertainment applications such as large plasma display panels and commercial display modules.
Plasma display panels can need as many as three different FPGA configurations to interface to multiple controllers. Historically, each configuration has required its own EEPROM says the company. Using the paging capability in the AT17F32/A, all three configurations can be stored in a single IC. This reduces board size, system complexity and system cost. When used with lower density FPGAs (eg, any EP20Kxxxxx, EP1Sxx, XC2Vxxx, or XCVxxx) the memory that is not required for configuration data may be used as general purpose, non-volatile data storage.
The 32 Mbit AT17F32 and AT17F32A offer 33 Mbps data transfer rate, page select pin options for storing different versions of the FPGA bitstream, and a simple 2-wire protocol. The devices operate at 3,3 V and come in a 44-pin PLCC package.
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