Small form factor FPGAs
20 August 2008
Programmable Logic
Xilinx recently unveiled its latest 90 nm low-cost Spartan-3A FPGAs. Optimised for use in applications such as digital displays, set-top boxes and wireless routers, the new small-form factor devices address industry demand for smaller footprint packages, enabling extremely cost-sensitive consumer electronic designs.
Spartan-3 FPGAs provide a power management solution with built-dual power management modes, enabling power savings and eliminating the need for external components such as regulators, heat-sinks, buffers, etc. They achieve up to 40% static power reduction in suspend mode and up to 99% in hibernate mode. The suspend mode cuts the quiescent current to a minimum state while retaining all information within the FPGA. This mode offers quick wake up time and system level synchronisation with an awake pin to indicate status, and programmable timers to delay internal and output wake up until the system is ready.
Spartan-3A and 3AN devices offer a unique DeviceDNA serial number. This permanent ID code safeguards hardware and software IP, providing designers with the flexibility to implement custom algorithms that enable authentication, deter cloning and control IP activation. Similar to an ATM transaction, the active value generated from the card and pin combination is compared to a stored number that authorises or rejects the transaction.
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