Nantes, France Aimed at the space industry, Atmel Corp.’s new AT697 radiation hardened 32-bit SPARC processor (V8) will have improved radiation capabilities of up to 300 krads. The unit is software compatible with the previous Atmel SPARC processors, including the SPARC V7 TSC695F.
The AT697 processor implements the LEON2 FT (fault tolerant) VHDL model owned by ESA, the European Space Agency. It is produced on Atmel’s 0.18 um CMOS process at the company’s France manufacturing site. It includes a SPARC V8 Integer Unit, a Floating Point Unit, separate instruction and data caches, a PCI interface and a flexible memory controller that can interface with SRAM, PROM and SDRAM.
The processor operates with 1.8-Volt and 3.3-Volt power supplies for the core and the I/O buffers, respectively. It delivers 86 MIPs (Dhrystone 2.1) and 23 MFlops (Whetstone) at 100 MHz. The ratio between performance and power consumption reaches a value as high as 150 MIPs/W, the power consumption being 7 mW/MHz.
To smooth the engineers’ task, the design is fully static and highly testable thanks to a boundary scan through a JTAG interface. And a dedicated Debug Support Unit will ease the software debugging. To prevent erroneous operations resulting from Single Event Upset and Single Event Transient errors, it implements a set of protection features including Triple Modular Redundancy, error correction and detection (EDAC) or parity checks on internal memories and EDAC on external memories. The first version of this processor has been tested successfully against total dose up to 100 krads and its single event latch-up threshold is higher than 70 MeV/(mg/cm2). The AT697 is planned to fly on the Proba 2 ESA project at the very beginning of 2007, according to Atmel.
The AT697 processor is available as a standalone component in a ceramic hermetic MCGA 349-pin package. The AT697 samples are available now. Pricing was not disclosed. The current version of the processor (AT697E) will be delivered tested to military quality flow (QML-Q) for some ESA projects by the end of 2005. At the end of 2006, the AT697 processor flight models will be delivered tested to either QML Q & V or ESCC quality flows. Atmel’s PCI evaluation board (AT697-EVA) and development kit (AT697-DKIT) allow evaluating and developing software. The evaluation board includes an AT697 processor sample and the BCC and RCC compilation chains. The development kit integrates the GRMON debug monitor. A software simulator called TSIM is also available from the Swedish company Gaisler Research www.gaisler.com.
This AT697 processor has been developed with the support of the European Space Agency (ESA).
Atmel Corp. (408) 451-2855