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DS80C390：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.

Key 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

DS80C390: Pin Configuration Applications/Uses Agricultural Equipment Factory Automation Gaming Equipment Heating, Ventilation, and Air Conditioning Industrial Controls Medical Equipment

DataSheet

Parametrics

Quality and Environmental Data

• DS80C390.pdf

Ordering Information