DSPIC33CK256MP305-I/M7

Microcontrollers Overview

The dsPIC33CK256MP305-I/M7 is a 16-bit Digital Signal Controller from the dsPIC33CK512MP608 family, manufactured by Microchip Technology. It features a single dsPIC33CK CPU core operating up to 100 MIPS with a supply voltage range of 3V to 3.6V and an industrial temperature range of -40°C to +85°C. The device integrates 256 Kbytes of Program Flash memory with ECC and dual partition support for LiveUpdate capabilities, alongside 64 Kbytes of Data RAM equipped with Memory Built-In Self-Test (MBIST). Key peripherals include five 12-bit ADC modules providing up to 19 conversion channels, six DAC/Analog Comparator modules, eight high-resolution PWM channels with 250 ps resolution, three UARTs, three SPI/I2S modules, three I2C modules, two SENT modules, one Quadrature Encoder Interface (QEI), four Configurable Logic Cells (CLCs), and eight DMA channels.

Microcontrollers Feature Summary

• Integrates a 16-bit dsPIC33CK CPU core optimized for code efficiency in C and Assembly, featuring 40-bit wide accumulators and single-cycle MAC operations for high-performance digital signal processing.
• Provides advanced analog capabilities with five 12-bit ADC modules and six DAC/Analog Comparator modules, supporting hardware slope compensation and fast interrupt response via multiple context save registers.
• Includes high-resolution PWM generation with fine edge placement and flexible trigger configurations suitable for complex motor control and power supply applications.
• Offers robust safety and security features including Error Correcting Code (ECC) for flash memory, RAM Memory Built-In Self-Test (MBIST), CodeGuard security, and compliance with functional safety standards.

Microcontrollers Applications

• Brushless DC (BLDC), Permanent Magnet Synchronous Motor (PMSM), Switched Reluctance (SR), and AC Induction Motor (ACIM) control systems
• Switch-mode AC/DC and DC/DC power supplies, including Uninterruptible Power Supplies (UPS)
• Power Factor Correction (PFC) circuits

Microcontrollers Procurement Notes

Verify the specific suffix '-I/M7' against official Microchip documentation to confirm the exact package type, temperature grade, and mass production status. Ensure that the selected variant matches the required pin count and peripheral availability for your design. Cross-reference the datasheet revision number to guarantee compatibility with current errata sheets and functional safety collateral.

Microcontrollers Selection Notes

Select this controller when a balance of 256 KB flash capacity and full peripheral richness is required without CAN FD connectivity. The MP30x series variants are ideal for designs where CAN FD is unnecessary, allowing for cost optimization while retaining high-resolution PWM and advanced analog features. Consider the 48-pin TQFP/VQFN package constraints regarding available GPIO and analog channel routing.

Microcontrollers Part Context

This component belongs to the dsPIC33CK512MP608 family, which unifies high-performance digital signal processing with microcontroller flexibility. The family shares a common architecture across 48, 64, and 80-pin packages, differing primarily in memory size (256K vs 512K Flash) and peripheral presence (CAN FD vs No CAN FD). The MP305 specifically denotes the 48-pin variant within the non-CAN FD subset.

Microcontrollers Replacement Considerations

Direct substitutes within the same family include the dsPIC33CK256MP306 (64-pin) or dsPIC33CK256MP308 (80-pin) if pin count expansion is acceptable. For higher memory requirements, the dsPIC33CK512MP305 offers identical peripherals but with 512 KB Flash. Verify pinout compatibility before swapping between different pin counts.