Dual CAN High-Speed Microprocessor

The DS80C390 is a fast 8051-compatible microprocessor with dual CAN 2.0B controllers. The redesigned processor core executes 8051 instructions up to 3X faster than the original for the same crystal speed. The DS80C390 supports a maximum crystal speed of 40MHz, resulting in apparent execution speeds of 100MHz (approximately 2.5X). An optional internal frequency multiplier allows the microprocessor to operate at full speed with a reduced crystal frequency, reducing EMI. A hardware math accelerator further increases the speed of 32-bit and 16-bit multiply and divide operations as well as high-speed shift, normalization, and accumulate functions.

The High-Speed Microcontroller User's Guide and the High-Speed Microcontroller User's Guide: DS80C390 Supplement should be used in conjunction with this data sheet. Download both at www.maximintegrated.com/microcontrollers.

Applications

* Agricultural Equipment * Factory Automation * Gaming Equipment * Heating, Ventilation, and Air Conditioning * Industrial Controls * Medical Equipment

* 80C52 Compatible

* High-Speed Architecture

* 4kB Internal SRAM Usable as Program/Data/Stack Memory

* Enhanced Memory Architecture

* Two Full-Function CAN 2.0B Controllers

* Two Full-Duplex Hardware Serial Ports

* Programmable IrDA Clock

* High Integration Controller

* 16 Interrupt Sources with Six External

* Available in 64-Pin LQFP, 68-Pin PLCC