Описание
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.
- 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
