
Maxim Integrated
GENERAL DESCRIPTION
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.
FEATURES
◾ 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
APPLICATIONS
Industrial Controls
Agricultural Equipment
Factory Automation
Gaming Equipment
Medical Equipment
Heating, Ventilation, and Air Conditioning