LONDON As expected Rabbit Semiconductor Inc. has announced the availability of its 4000 8-bit microcontroller.
The Rabbit 4000 will be available for purchase from Tuesday (April 4) priced at below $9 in volume the RabbitCore RCM4100 development kit priced at $259 per unit.
Rabbit (Davis Calif.) announced that it expected to begin shipping the 4000 in March, in October 2005.
The Rabbit 4000 is designed for embedded control, communications, and Ethernet connectivity and builds on the functionality of the 3000 from Rabbit (Davis, Calif.). The 4000 has a “C-friendly” instruction set, the company said, can interface with larger external SRAMs, up to 16 Mbytes, and integrates more functions on-chip than the 3000A, including 10Base-T Ethernet and hardware DMA.
The Rabbit 4000 operates at up to 60-MHz clock frequency with support for up to 16-Mbytes of code and data space. It operates at 3.3-volt but can be set to 1.8-volt for power saving. The processor is available in to 128-pin TFGBA and LQFP packages with up to 40 general purpose I/O lines.
The RabbitSys operating system is designed to work with the company's existing 3000A silicon as well as the forthcoming Rabbit 4000 device. The 4000 silicon also supports variable-frequency pulse-width modulation, which is used in motion-control applications. Rabbit was acquired by networking-systems vendor Digi International (Minnetonka, Minn.) in 2005 for about $50 million.