Dallas > DallasDS80C390-QCB

Modified: May 15, 2005, 8:55 pm

Manufacturer:	Dallas-Maxim
Model:	DS80C390-QCB
Speed:	40MHz
Type:	MCS-51
Data Code:	0348
Introduced:	1980
Transistors:	??
Package:	68PLCC
Process:	??
Architecture:	8 bit MCU
Used in:	Control applications
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. 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.