ADMCF326-15

28-Lead Flash Memory DSP Motor Controller; 20 MIPS Fixed-Point DSP Core\n  Single Cycle Instruction Execution (50 ns)\n  ADSP-21xx Family Code Compatible\n  Independent Computational Units\n    ALU\n    Multiplier/Accumulator\n    Barrel Shifter\n  Multifunction Instructions\n  Single Cycle Context Switch\n  Powerful Program Sequencer\n    Zero Overhead Looping\n    Conditional Instruction Execution\n  Two Independent Data Address Generators\nMemory Configuration\n  512 \u0001 24-Bit Program Memory RAM\n  512 \u000116-Bit Data Memory RAM\n  4K \u0001 24-Bit Program Memory ROM\n  4K \u0001 24-Bit Program Flash Memory\n    Three Independent Programmable Sectors\n    Security Lock Bit\n    10K Erase/Program Cycles\nThree-Phase 16-Bit PWM Generator\n  16-Bit Center-Based PWM Generator\n  Programmable Dead Time and Narrow Pulse Deletion\n  Edge Resolution to 50 ns\n  150 Hz Minimum Switching Frequency\n  Double/Single Duty Cycle Update Mode Control\n  Programmable PWM Pulsewidth\n  Special Crossover Function for Brushless DC Motors\n  Individual Enable and Disable for Each PWM Output\n  High Frequency Chopping Mode for Transformer\n    Coupled Gate Drives\n  External PWMTRIP Pin\nIntegrated ADC Subsystem\n  Six Analog Inputs\n  Acquisition Synchronized to PWM Switching Frequency\n  Internal Voltage Reference\n9-Pin Digital I/O Port\n  Bit Configurable as Input or Output\n  Change of State Interrupt Support\nTwo 8-Bit Auxiliary PWM Timers\n  Synthesized Analog Output\n  Programmable Frequency\n  0% to 100% Duty Cycle\n  Two Programmable Operational Modes\n    Independent Mode/Offset Mode\n16-Bit Watchdog Timer\nProgrammable 16-Bit Internal Timer with Prescaler\nDouble Buffered Synchronous Serial Port\nHardware Support for UART Emulation\nIntegrated Power-On Reset Function Options\n28-Lead SOIC and PDIP Packages AvailableTARGET;

GENERAL DESCRIPTION\nThe ADMCF326 is a low cost, single-chip DSP-based controller, suitable for permanent magnet synchronous motors, ac induction motors, and brushless dc motors. The ADMCF326 integrates a 20 MIPS, fixed-point DSP core with a complete set of motor control and system peripherals that permits fast, efficient devel opment of motor controllers.FEATURES\n20 MIPS Fixed-Point DSP Core\n  Single Cycle Instruction Execution (50 ns)\n  ADSP-21xx Family Code Compatible\n  Independent Computational Units\n    ALU\n    Multiplier/Accumulator\n    Barrel Shifter\n  Multifunction Instructions\n  Single Cycle Context Switch\n  Powerful Program Sequencer\n    Zero Overhead Looping\n    Conditional Instruction Execution\n  Two Independent Data Address Generators\nMemory Configuration\n  512 \u0001 24-Bit Program Memory RAM\n  512 \u000116-Bit Data Memory RAM\n  4K \u0001 24-Bit Program Memory ROM\n  4K \u0001 24-Bit Program Flash Memory\n    Three Independent Programmable Sectors\n    Security Lock Bit\n    10K Erase/Program Cycles\nThree-Phase 16-Bit PWM Generator\n  16-Bit Center-Based PWM Generator\n  Programmable Dead Time and Narrow Pulse Deletion\n  Edge Resolution to 50 ns\n  150 Hz Minimum Switching Frequency\n  Double/Single Duty Cycle Update Mode Control\n  Programmable PWM Pulsewidth\n  Special Crossover Function for Brushless DC Motors\n  Individual Enable and Disable for Each PWM Output\n  High Frequency Chopping Mode for Transformer\n    Coupled Gate Drives\n  External PWMTRIP Pin\nIntegrated ADC Subsystem\n  Six Analog Inputs\n  Acquisition Synchronized to PWM Switching Frequency\n  Internal Voltage Reference\n9-Pin Digital I/O Port\n  Bit Configurable as Input or Output\n  Change of State Interrupt Support\nTwo 8-Bit Auxiliary PWM Timers\n  Synthesized Analog Output\n  Programmable Frequency\n  0% to 100% Duty Cycle\n  Two Programmable Operational Modes\n    Independent Mode/Offset Mode\n16-Bit Watchdog Timer\nProgrammable 16-Bit Internal Timer with Prescaler\nDouble Buffered Synchronous Serial Port\nHardware Support for UART Emulation\nIntegrated Power-On Reset Function Options\n28-Lead SOIC and PDIP Packages AvailableTARGET APPLICATIONS\nWashing Machines, Refrigerator Compressors, Fans, Pumps, Industrial Variable Speed Drives\n\nMOTOR TYPES\nAC Induction Motors\nPermanent Magnet Synchronous Motors (PMSM)\nBrushless DC Motors (BDCM)