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DSPIC33CH256MP508-I/PT

MCHPDSPIC33CH256MP508-I/PT

Microchip Technology
dsPIC dsPIC™ 33CH, Functional Safety (FuSa) Microcontroller IC 16-Bit Dual-Core 180MHz, 200MHz 328kB (328k x 8) FLASH, PRAM 80-TQFP (12x12)
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Overview

The DSPIC33CH256MP508-I/PT is a unique dual-core 16-bit digital signal controller designed for high-performance embedded applications requiring functional safety and real-time control. It features a Main core and a Secondary core that can operate at 180MHz and 200MHz respectively, allowing for the separation of time-critical control loops from communication and housekeeping tasks. With 256KB of Flash and integrated high-speed ADCs and DACs, it provides a robust platform for complex power conversion and motor control.

Why Choose This Part

The dual-core architecture allows for independent development and execution, preventing software bottlenecks in time-sensitive loops. It features 40-bit wide accumulators and single-cycle MAC instructions for efficient DSP performance usually reserved for 32-bit processors. The inclusion of hardware features like LiveUpdate and dedicated interrupt context registers minimizes latency and increases system reliability.

Applications

Digital Power Conversion
Utilizes dual cores to manage complex PFC (Power Factor Correction) and DC/DC conversion stages simultaneously with high-speed PWM and ADC feedback.
Advanced Motor Control
The Secondary core can run high-frequency FOC (Field Oriented Control) algorithms while the Main core handles CANbus communication and system diagnostics.
Automotive Functional Safety
Designed for ISO 262262 applications where hardware redundancy and fault detection are required for safety-critical systems.
Industrial Automation
Ideal for multi-axis robotic controllers using the integrated QEI (Quadrature Encoder Interface) and high-speed math accelerators.

Key Specifications

Speed 180MHz, 200MHz
RAM Size 48K x 8
Core Size 16-Bit Dual-Core
Peripherals Brown-out Detect/Reset, DMA, Motor Control PWM, POR, PWM, QEI, WDT
Connectivity CANbus, I2C, IrDA, LINbus, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 69
Core Processor dsPIC
Package / Case 80-TQFP
Data Converters A/D 34x12b; D/A 4x12b
Oscillator Type Internal
Program Memory Size 328kB (328k x 8)
Program Memory Type FLASH, PRAM
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 80-TQFP (12x12)
Voltage - Supply (Vcc/Vdd) 3V ~ 3.6V

Getting Started

Start development using the MPLAB X IDE and the XC16 compiler, which support the dual-core memory mapping and inter-processor communication. Hardware evaluation can be performed using the dsPIC33CH Curiosity Development Board (DM330028-2). Be sure to utilize the Master-Slave Interface (MSI) peripheral for efficient data exchange between the two cores.

Part of PIC Microcontrollers family » DSPIC33CH

DSPIC33CH Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number RAM ADC/DAC Flash Temp Range Stock
DSPIC33CH256MP508-I/PT (this part) 48K A/D 34x12b; D/A 4x.. 328k -40degC ~ 85degC (.. 307
DSPIC33CH512MP508-E/PT 64K A/D 64x12b; D/A 4x.. 584k -40degC ~ 125degC .. 922
DSPIC33CH128MP508-I/PT 20K A/D 34x12b; D/A 4x.. 152KB -40degC ~ 85degC (.. 41

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