DSPIC33CK256MP505-E/PT Microchip dsPIC33CK 16-Bit Digital Signal Controller 100MIPS 256KB Flash CAN-FD Motor Control PWM TQFP-48

DSPIC33CK256MP505-E/PT Product Overview

The DSPIC33CK256MP505-E/PT from Microchip is a high-capacity 16-bit Digital Signal Controller (DSC) in a 48-lead TQFP package, engineered for high-end embedded control applications requiring massive program storage, integrated analog front-ends, high-speed industrial networking, and extended temperature capability. Based on the dsPIC33CK core running at 100 MIPS, the DSPIC33CK256MP505-E/PT features 256KB of ECC-protected Flash and 24KB of SRAM, effortlessly hosting complex multi-axis motor control algorithms, digital power loops, and CAN-FD stacks, while leaving generous headroom for future upgrades. Core peripherals of the DSPIC33CK256MP505-E/PT include four high-resolution motor-control PWM pairs (250 ps step, programmable dead-time, and fault protection), two Quadrature Encoder Interfaces (QEI), a 12-bit high-speed ADC (3.5 Msps with multiple dedicated sample-and-hold circuits), and a CAN-FD controller. Additionally, three operational amplifiers and four analog comparators (with DACs) are integrated on the DSPIC33CK256MP505-E/PT, greatly simplifying motor phase-current sensing and overcurrent protection circuitry. UART, SPI, and I2C interfaces complete the feature set of the DSPIC33CK256MP505-E/PT. Operating from 3.0V to 3.6V with an extended temperature range of -40°C to +125°C, the DSPIC33CK256MP505-E/PT excels in harsh environments such as engine compartments and high-temperature industrial equipment, making the DSPIC33CK256MP505-E/PT ideal for dual-axis servo drives, automotive actuators, high-end digital power, and distributed control nodes requiring large code space and CAN-FD connectivity under extreme conditions.

DSPIC33CK256MP505-E/PT Core Features

Processor Core: The DSPIC33CK256MP505-E/PT features a 16-bit dsPIC33CK core running at 100 MIPS, with a DSP-enhanced instruction set (single-cycle MAC)

Program Memory: The DSPIC33CK256MP505-E/PT provides 256KB Flash with ECC, in-circuit self-programmable

Data Memory: The DSPIC33CK256MP505-E/PT includes 24KB SRAM with Memory Protection Unit (MPU), providing ample buffer for complex computations and dual-motor tasks

Motor Control PWM: The DSPIC33CK256MP505-E/PT offers 4 complementary PWM pairs with programmable dead-time, fault protection, and high-resolution mode (250 ps step)

High-Speed Precision ADC: The DSPIC33CK256MP505-E/PT integrates a 12-bit ADC up to 3.5 Msps, with multiple dedicated sample-and-hold circuits for synchronous sampling

Quadrature Encoder Interface (QEI): The DSPIC33CK256MP505-E/PT includes 2 QEI modules for high-precision position and speed feedback

CAN-FD Communication: The DSPIC33CK256MP505-E/PT features an integrated CAN-FD controller supporting up to 8 Mbps and 64-byte payload, compatible with CAN 2.0

Integrated Analog Peripherals: The DSPIC33CK256MP505-E/PT incorporates 3 operational amplifiers and 4 analog comparators (with DAC) to simplify current sensing and signal conditioning

Communication Interfaces & Timers: The DSPIC33CK256MP505-E/PT supports 2x UART, 2x SPI, 2x I2C, and rich 16/32-bit timers

Safety & System Management: The DSPIC33CK256MP505-E/PT includes a hardware CRC engine, watchdog timer, windowed watchdog, and BOR/POR

Power & Package: The DSPIC33CK256MP505-E/PT operates from a 3.0V to 3.6V single supply, in TQFP-48 (10mm×10mm), extended temperature range -40°C to +125°C

DSPIC33CK256MP505-E/PT Applications

High-Temperature Automotive Actuators & Nodes: The DSPIC33CK256MP505-E/PT excels in engine-bay electric water/oil pumps, turbo wastegate actuators, active grilles, and CAN-FD network nodes

Industrial Motor Drives: The DSPIC33CK256MP505-E/PT is ideal for dual-axis servo drives, BLDC, PMSM, and stepper motors in high-temperature environments

Digital Power: The DSPIC33CK256MP505-E/PT is used in high-temperature DC/DC converters, micro inverters, LED drivers, and battery chargers

Industrial Automation: The DSPIC33CK256MP505-E/PT supports distributed control nodes, multi-axis motion controllers, and process stations (outdoor or hot locations)

Medical & Precision Instruments: The DSPIC33CK256MP505-E/PT suits precision fluid control, portable monitors, and multi-sensor modules

Aerospace & Defense: The DSPIC33CK256MP505-E/PT is applicable for auxiliary control systems requiring wide-temperature operation

DSPIC33CK256MP505-E/PT Key Advantages

Massive Memory & Extended Temperature: The DSPIC33CK256MP505-E/PT's 256KB Flash and 24KB SRAM combined with an operating range of -40°C to +125°C provide reliable performance for the most demanding applications in extreme environments

100 MIPS Powerful Performance: The DSPIC33CK256MP505-E/PT's dsPIC33CK core with DSP-enhanced instructions efficiently handles sensorless FOC, digital power loops, and real-time communication, easily managing dual-motor coordination

Complete Motor Control Peripherals: The DSPIC33CK256MP505-E/PT's four high-resolution PWM pairs (250 ps step) and two QEIs support independent dual-motor drives or high-precision single-axis servo control

Integrated Analog Front-End: The DSPIC33CK256MP505-E/PT's three op amps and four DAC-equipped comparators directly support phase-current sensing and overcurrent protection, reducing external components, BOM cost, and PCB area

High-Speed Synchronous ADC: The DSPIC33CK256MP505-E/PT's 3.5 Msps with multiple S&H circuits enables precise synchronous phase-current and voltage sampling—ideal for high-performance FOC and current-mode control

CAN-FD Ready: The DSPIC33CK256MP505-E/PT supports up to 8 Mbps data rates and 64-byte payloads, meeting next-generation automotive and industrial networking demands

High-Reliability Design: The DSPIC33CK256MP505-E/PT features ECC-protected Flash, hardware CRC, windowed watchdog, and multiple reset mechanisms ensuring long-term stability in high-temperature and harsh environments

Complete Development Ecosystem: The DSPIC33CK256MP505-E/PT is supported by free MPLAB X IDE and XC16 compiler, motor control libraries, digital power libraries, CAN-FD drivers, and MCC significantly accelerating time-to-market

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FAQ

1. What is the DSPIC33CK256MP505-E/PT?
   The DSPIC33CK256MP505-E/PT is a high-capacity 16-bit Digital Signal Controller (DSC) from Microchip in a 48-lead TQFP package, running at 100 MIPS with 256KB ECC Flash, 24KB SRAM, 4 high-res PWM pairs, 2 QEIs, 12-bit 3.5 Msps ADC, integrated op amps/comparators, and CAN-FD, extended temperature -40°C to +125°C.
2. What does the “-E/PT” suffix mean on the DSPIC33CK256MP505-E/PT?
   “-E” indicates the extended temperature range (-40°C to +125°C), and “/PT” denotes the 48-lead TQFP package (10mm×10mm) of the DSPIC33CK256MP505-E/PT.
3. What is the benefit of the “E” temperature grade on the DSPIC33CK256MP505-E/PT?
   The extended grade of the DSPIC33CK256MP505-E/PT supports up to +125°C, far surpassing the standard +85°C industrial range. It is ideal for extreme high-temperature environments such as automotive engine compartments, near industrial furnaces, or sun-exposed outdoor equipment.
4. What can the integrated op amps and comparators do on the DSPIC33CK256MP505-E/PT?
   The three op amps on the DSPIC33CK256MP505-E/PT enable direct differential amplification of motor phase currents, while the four DAC-equipped comparators can be configured for overcurrent protection or peak current-mode control, saving external analog chips and PCB space.
5. How many motors can the DSPIC33CK256MP505-E/PT control?
   With four high-resolution complementary PWM pairs and two QEIs, the DSPIC33CK256MP505-E/PT can simultaneously drive two 3-phase BLDC motors or one high-precision servo motor with dual encoder feedback.
6. Are 256KB Flash and 24KB SRAM enough for FOC on the DSPIC33CK256MP505-E/PT?
   Very much so. In addition to accommodating complex dual-motor FOC algorithms and CAN-FD stacks on the DSPIC33CK256MP505-E/PT, generous space remains for fault diagnostics, field upgrades, and future feature expansion across the product lifecycle.
7. What development tools are supported for the DSPIC33CK256MP505-E/PT?
   The DSPIC33CK256MP505-E/PT is supported by Microchip's free MPLAB X IDE and MPLAB XC16 compiler, along with PICkit or ICD series debuggers, MPLAB Code Configurator (MCC), motor control libraries, and CAN-FD driver libraries, enabling rapid development.
8. Does the DSPIC33CK256MP505-E/PT have an internal oscillator, or is an external crystal required?
   The DSPIC33CK256MP505-E/PT has an internal high-speed RC oscillator; no external crystal is required. However, an external crystal is recommended for precise CAN-FD communication and high-performance motor control.
9. What are the advantages of the TQFP package of the DSPIC33CK256MP505-E/PT?
   The TQFP-48 package of the DSPIC33CK256MP505-E/PT features leads on all four sides, making it excellent for automated SMT assembly, manual soldering, and visual inspection, while providing good thermal performance and a moderate PCB footprint.
10. Is the DSPIC33CK256MP505-E/PT suitable for new designs?
    Absolutely. As a flagship member of Microchip's dsPIC33CK platform, the DSPIC33CK256MP505-E/PT delivers massive memory, integrated analog, CAN-FD, and 125°C capability in a manufacturing-friendly package—a reliable, long-life choice for high-reliability dual motor drives, automotive network nodes, and hot industrial control designs.