DSPIC33CK64MP208T-I/PT
DSPIC33CK64MP208T-I/PT - 16-bit 100MHz DSC 64KB Flash | Microchip
The Microchip Technology DSPIC33CK64MP208T-I/PT is a 16-bit Digital Signal Controller (DSC) from the dsPIC33CK family, operating at 100 MHz with 64 KB of Flash program memory and 8 KB of RAM, housed in an 80-pin TQFP (12 x 12 mm) package. It integrates three operational amplifiers, three comparators, and a Peripheral Trigger Generator (PTG), and is designed with Functional Safety (FuSa) support for safety-critical real-time control.
A Digital Signal Controller combines the deterministic, interrupt-driven behavior of a microcontroller with the mathematical throughput of a DSP. Within the power-management hierarchy, the dsPIC33CK family sits alongside general-purpose MCUs and dedicated DSPs, occupying the real-time embedded control niche where fast control loops, such as those in switch-mode power supplies and motor drives, must execute within microseconds. The dsPIC33CK core achieves this with a pipelined 16-bit architecture, DSP multiply-accumulate instructions, and 40-bit accumulators for high-precision filtering.
Key features include the 100 MHz core enabling sub-100 ns interrupt latency for tight control loops, 64 KB of self-programmable Flash for firmware flexibility, 8 KB of RAM for buffering and state variables, and rich analog integration: three on-chip op-amps and three comparators reduce external component count in current-sense and protection circuits. The Peripheral Trigger Generator autonomously sequences ADC sampling and PWM updates without CPU intervention, offloading the processor in time-critical loops.
Technically, the device pairs high-resolution PWM outputs with fast ADCs, a combination purpose-built for digital power conversion. Barrel shifting, DSP MAC instructions, and DMA-driven data movement allow efficient execution of control algorithms such as PID, notch filters, and power-factor-correction loops. Functional Safety documentation support suits designs targeting regulated industrial and automotive-adjacent markets.
Typical applications include digital switched-mode power supplies (AC-DC, DC-DC, totem-pole PFC), brushless DC and PMSM motor control for industrial drives, and advanced sensing with inline current and voltage measurement. The on-chip op-amps condition shunt-current signals directly, while comparators implement cycle-by-cycle overcurrent protection without software latency.
A key design consideration: at 100 MHz with all analog peripherals active, careful PCB layout of the analog ground plane and ADC reference decoupling is essential to achieve specified accuracy; budget Flash headroom for FuSa self-test routines.
This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
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