ADMCF340

a DashDSPTM 64-Lead Flash Mixed-Signal DSP with Enhanced Analog Front End ADMCF340 Memory Configuration 512 ؋ 16-Bit Data Memory RAM 512 ؋ 24-Bit Program Memory RAM 4K ؋ 24-Bit Program Memory ROM 4K ؋ 24-Bit Total Program FLASH Memory Three Independent FLASH Memory Sectors 3584 ؋ 24-Bit, 256 ؋ 24-Bit, 256 ؋ 24-Bit Low Cost Pin-Compatible ROM Option 16-Bit Watchdog Timer Programmable 16-Bit Internal Timer with Prescaler Two Double Buffered Serial Ports with SPI Mode Support Integrated Power On Reset Function Three Phase 16-Bit PWM Generation Unit 16-Bit Center-Based PWM Generator Programmable PWM Pulsewidth Edge Resolution of 50 ns Programmable Narrow Pulse Deletion 153 Hz Minimum Switching Frequency Double/Single Update Mode Control Individual Enable and Disable for Each PWM Output High Frequency Chopping Mode for Transformer-Coupled Gate Drives TARGET APPLICATIONS Refrigerator and Air Conditioner Compressors, Washing Machines Industrial Variable Speed Drives, HVAC MOTOR TYPES Permanent Magnet Synchronous Motors (PMSM), Brushless DC Motors (BDCM), AC Induction Motors (ACIM), Switched Reluctance Motors (SRM) FEATURES 20 MHz Fixed-Point DSP Core Single Cycle Instruction Execution (50 ns) ADSP-21xx Family Code Compatibility 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 (con...