ADMCF326

a 28-Lead Flash Memory DSP Motor Controller ADMCF326 TARGET APPLICATIONS Washing Machines, Refrigerator Compressors, Fans, Pumps, Industrial Variable Speed Drives MOTOR TYPES AC Induction Motors Permanent Magnet Synchronous Motors (PMSM) Brushless DC Motors (BDCM) FEATURES 20 MIPS Fixed-Point DSP Core Single Cycle Instruction Execution (50 ns) ADSP-21xx Family Code Compatible Independent Computational Units ALU Multiplier/Accumulator Barrel Shifter Multifunction Instructions Single Cycle Context Switch Powerful Program Sequencer Zero Overhead Looping Conditional Instruction Execution Two Independent Data Address Generators Memory Configuration 512 ؋ 24-Bit Program Memory RAM 512 ؋ 16-Bit Data Memory RAM 4K ؋ 24-Bit Program Memory ROM 4K ؋ 24-Bit Program Flash Memory Three Independent Programmable Sectors Security Lock Bit 10K Erase/Program Cycles Three-Phase 16-Bit PWM Generator 16-Bit Center-Based PWM Generator Programmable Dead Time and Narrow Pulse Deletion Edge Resolution to 50 ns 150 Hz Minimum Switching Frequency Double/Single Duty Cycle Update Mode Control Programmable PWM Pulsewidth Special Crossover Function for Brushless DC Motors Individual Enable and Disable for Each PWM Output High Frequency Chopping Mode for Transformer Coupled Gate Drives External PWMTRIP Pin Integrated ADC Subsystem Six Analog Inputs Acquisition Synchronized to PWM Switching Frequency Internal Voltage Reference 9-Pin Digital I/O Port Bit Configurable as Input or Output Change of State Interr...