DSPIC33CH64MP205-E/PT
DSPIC33CH64MP205-E/PT - Dual-Core 16-bit MCU, 64KB Flash | Microchip
The Microchip Technology DSPIC33CH64MP205-E/PT is a dual-core 16-bit Digital Signal Controller (DSC) housed in a 48-lead TQFP (7x7 mm) package, featuring a master/slave architecture that allows one dsPIC33C core to function as the master while the second core operates as a slave for task partitioning in real-time control loops. The part integrates 64 KB of program Flash (with up to 88 KB across the family per third-party listings) and runs at up to 200 MHz internal MIPS performance derived from a 64 MHz external reference on each core. High-resolution PWM, CAN Flexible Data (CAN FD), and DSP acceleration combine to support switched-mode power, motor control, and digital-power feedback applications. The 48-TQFP footprint with 0.50 mm pitch supports compact PCB designs while keeping analog and digital I/O accessible for sensor interfaces.
A Digital Signal Controller is a hybrid between a microcontroller (MCU) and a digital signal processor (DSP). It combines deterministic on-chip peripherals, interrupt-driven control, and DSP-style multiply-accumulate (MAC) execution in a single 16-bit Harvard core. In the product taxonomy, a DSC sits between an MCU and a DSP, inheriting from 16-bit microcontrollers and the broader category of embedded microcontrollers, and ultimately from semiconductors. Dual-core variants like the dsPIC33CH family add asymmetric multiprocessing (AMP), where the master handles communication, supervisory logic, and housekeeping while the slave core runs tightly-timed control loops, commutation algorithms, or DSP filters.
Key differentiating features include dual-core architecture (master + slave on one die), high-resolution PWM for digital power conversion, integrated CAN FD for automotive-grade networking, dual dsPIC DSC cores capable of independent firmware, and 16-bit DSP engine with MAC and barrel shifter. Together, these reduce BOM cost by eliminating an external companion controller in power-conversion or motor-control designs.
Architecturally, the dsPIC33CH uses separate buses for instruction and data fetch, an instruction cache, and deterministic interrupt latency. Each core has private peripherals and shared resources are arbitrated via hardware, allowing the slave to run a control loop with sub-microsecond jitter while the master executes housekeeping tasks without interference.
Typical applications include digital switch-mode power supplies, field-oriented control (FOC) motor drives, wireless charging transmitters, LED lighting drivers, and industrial automation controllers. The wide operating voltage and integrated analog further extend its reach to renewable-energy inverters and automotive sensor conditioning.
When designing with this device, allocate the master core to communication and housekeeping tasks (CAN, UART, supervisory logic), and the slave core to time-critical control loops (PWM, ADC sampling, commutation). Use the PGxECL/PGxFLT pins and high-resolution PWM mode for digital-power topologies.
This page synthesizes distributor pricing, drop-in alternatives, and engineering-grade design notes not consolidated in the manufacturer datasheet.
見積もり
お問い合わせ