DSPIC33EP256GP504-I/PT - 16-bit 70 MIPS DSC, 256KB Flash | Microchip
MPN: DSPIC33EP256GP504-I/PT ✓ NakahandaDSPIC33EP256GP504-I/PT Ulas
A digital signal controller combines the computational architecture of a digital signal processor (DSP) with the peripheral integration of a microcontroller. Within the power management hierarchy of embedded systems, DSCs sit between general-purpose MCUs and dedicated DSPs: the dsPIC33E family executes DSP-class multiply-accumulate instructions while retaining the interrupts, peripherals and ease of use of a PIC microcontroller.
Key features include the highest-speed 70 MIPS dsPIC33E core, high-speed PWM modules for digital power conversion, integrated operational amplifiers that reduce external analog component count, advanced analog capability with the Charge Time Measurement Unit (CTMU), and enhanced CAN communication for industrial networking. The Peripheral Trigger Generator (PTG) automates ADC-DSP-PWM trigger chains offloading the CPU.
Architecturally, the device uses a modified Harvard 16-bit pipeline with a 24-bit instruction word, hardware DSP multiply-accumulate (MAC) and divide support, and address generation units that sustain single-cycle MAC throughput. The 32KB RAM supports real-time control loops with X-Y dual-operand addressing.
Typical applications include digital power supplies (PFC, LLC, buck/boost converters), motor control (BLDC, PMSM, FOC), industrial automation with CAN connectivity, and sensor signal conditioning leveraging the on-chip op amps and 12-bit ADC performance.
A key design consideration: the 70 MIPS maximum frequency requires attention to supply decoupling and VDD/SFR write timing per the Microchip datasheet; MCLR configuration and PGEC/PGED ICSP pairing must be respected for programming.
This page synthesizes distributor pricing, drop-in alternatives, comparison data and practical design notes not found in the manufacturer datasheet alone.
Mga alternatibo na pwedeng ilagay na DSPIC33EP256GP504-I/PT — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok DSPIC33EP256GP504-I/PT (parehas na form factor at footprint) — pagkakaiba sa Series, Operating Temperature, Core Architecture, Communication Interfaces, Connectivity.
DSPIC33EP128GP504-I/PT
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →DSPIC33EP256GP504-H/PT
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
DSPIC33EP64GP504-I/PT
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →DSPIC33EP256MC504-I/PT
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →DSPIC33EP256GP504-I/PT Mga Pinakamataas na Rating at Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E modified Harvard |
| Maximum CPU Speed | 70 MIPS |
| Program Memory (Flash) | 256 KB (85.5K x 24) |
| RAM Size | 32 KB |
| Volte ng Pagbibigay | 3.3 V |
| Packhaging | 44-TQFP (10x10 mm) |
| Uri ng Pagpapasok | Surface Mount |
| Temperature na Operasyon | -40C to +85C (Industrial, -I suffix) |
| Peripherals | High-Speed PWM, Op Amps, CTMU, PTG, enhanced CAN |
| Communication Interfaces | ECAN, UART, SPI, I2C |
| Product Family | dsPIC33EP GP50 Series |
| Programming Interface | ICSP (PGECx/PGEDx pairs), In-Circuit Serial Programming |
| Tindminan RoHS | Compliant |
| Lead Free | Yes |
| ADC | On-chip high-performance ADC (advanced analog) |
Gabay sa Pin Configuration ng DSPIC33EP256GP504-I/PT 44-tqfp (10x10 mm)
Pin configuration para sa DSPIC33EP256GP504-I/PT (44-tqfp (10x10 mm) package). Kasama sa digital IC na ito ang GPIO, mga communication interface (UART, SPI, I2C), at mga power pin. Sumangguni sa datasheet ng manufacturer para sa mga alternatibong function ng pin at mga opsyon sa configuration. Mahalaga para sa disenyo ng embedded system at PCB layout.
Wala ng detalyadong pinout data na magagamit para sa DSPIC33EP256GP504-I/PT.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
DSPIC33EP256GP504-I/PT ay nararapat para sa 6 aplikasyons: Digital Power Conversion, Motor Control (BLDC / PMSM / FOC), Industrial Automation and CAN Networking, Sensor Signal Conditioning and Measurement, Lighting and High-Brightness LED Control, Embedded Control and IoT Edge Nodes.
Digital Power Conversion
The DSPIC33EP256GP504-I/PT fits digital power supplies because its 70 MIPS core sustains real-time voltage and current control loops, while the high-speed PWM module provides the complementary, dead-time-controlled switching signals that PFC, LLC and buck converter stages require. In a typical digital power design, the ADC samples output voltage and inductor current synchronized to PWM cycle boundaries via the Peripheral Trigger Generator, and the control law runs in a few microseconds using hardware multiply-accumulate instructions. The on-chip op amps can condition current-shunt signals before digitization, reducing external component count. Compared with a purely analog control loop, the DSC enables programmable soft-start, non-linear gain scheduling and digital telemetry over UART or ECAN without changing hardware.
Inirekomenda
Motor Control (BLDC / PMSM / FOC)
Field-oriented control of PMSM and BLDC motors is a natural fit for this DSC: the 70 MIPS dsPIC33E core executes Clarke/Park transforms and PI current loops within the PWM period, and the 32KB RAM holds lookup tables and state data for sensorless observers. The high-speed PWM generates the six-channel inverter drive with hardware dead time, and ADC conversions are triggered precisely at PWM mid-cycle to sample phase currents free of switching noise. The on-chip op amps and CTMU support both shunt-based current sensing and position-sensor signal conditioning. Communication with a host drive controller runs over ECAN or UART. Designers should verify PWM resolution at the chosen operating frequency per the DS70000657J family data sheet to meet torque-ripple targets.
Inirekomenda
Industrial Automation and CAN Networking
In factory automation nodes, the DSPIC33EP256GP504-I/PT provides the enhanced CAN (ECAN) peripheral for deterministic communication on industrial buses, plus UART, SPI and I2C for local I/O expansion. The 256KB Flash accommodates protocol stacks (CANopen-style application layers, Modbus over UART) alongside the control firmware, and the 32KB RAM buffers network traffic without external memory. The Peripheral Trigger Generator automates sensor sampling sequences - temperature, pressure, position - feeding the high-performance ADC without CPU overhead. The -40C to +85C industrial temperature grade matches typical cabinet and floor environments. Because the part is ICSP-programmable in-circuit through any PGECx/PGEDx pair, field firmware updates are straightforward with a standard Microchip programmer.
Inirekomenda
Sensor Signal Conditioning and Measurement
The integrated operational amplifiers and Charge Time Measurement Unit (CTMU) make this DSC effective in measurement front ends. Sensor outputs - strain gauges, RTDs, capacitive touch electrodes, photodiodes - can be amplified on-chip before the high-performance ADC digitizes them, and the CTMU provides precise time-charge measurement for capacitance and time-of-flight style measurements. The 70 MIPS core applies filtering, linearization and DSP functions (IIR/FIR, FFT windows) using hardware MAC instructions, and results stream out over SPI or UART. The 256KB Flash stores calibration tables and multi-sensor firmware in one image. For portable instruments, the 3.3V single-supply operation and single-package integration reduce board area and quiescent complexity versus discrete amplifier-plus-MCU designs.
Inirekomenda
Lighting and High-Brightness LED Control
Digitally controlled LED drivers benefit from the dsPIC33EP256GP504's high-speed PWM with fine duty-cycle resolution, enabling precise dimming, color mixing and constant-current regulation for high-brightness LED arrays. The ADC samples LED current at PWM cycle boundaries triggered by the PTG, and the 70 MIPS control loop maintains regulation despite input-voltage sag, protecting against flicker. On-chip op amps condition current-sense shunts; ECAN or UART links the driver to room-level lighting controllers. Because dimming curves, thermal fold-back and failure diagnostics live in firmware on the 256KB Flash, one PCB serves multiple luminaire SKUs. The industrial temperature range and RoHS-compliant TQFP package suit sealed outdoor and enclosed fixture environments.
Inirekomenda
Embedded Control and IoT Edge Nodes
As a general-purpose embedded controller, the DSPIC33EP256GP504-I/PT combines DSP-class arithmetic with standard MCU peripherals, making it suitable for edge nodes that both sense and actuate: HVAC zone controllers, pump sequencers, vending and appliance control boards. The 256KB Flash and 32KB RAM host a lightweight stack (TCP over serial gateways, CAN or UART protocols) plus control firmware in one chip. I2C and SPI connect sensors and EEPROM configuration storage; UART bridges to cellular or Wi-Fi modules. The 3.3V supply simplifies integration with modern peripherals, and ICSP supports production programming and service updates. Engineers moving from 8-bit PICs appreciate the familiar toolchain (MPLAB X, XC16) while gaining DSP capability.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for DSPIC33EP256GP504-I/PT — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | DSPIC33EP128GP504-I/PT | DSPIC33EP256GP504-H/PT | DSPIC33EP64GP504-I/PT | DSPIC33EP256MC504-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB (85.5K x 24) | 128 KB | 256 KB | 64 KB | 256 KB |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS family speed class | 70 MIPS | 70 MIPS |
| Core Type | 16-bit dsPIC33E DSC | 16-bit dsPIC33E DSC | 16-bit dsPIC33E DSC | 16-bit dsPIC33E DSC | 16-bit dsPIC33E DSC |
| High-Speed PWM / SMPS Peripherals | High-Speed PWM, advanced analog | High-Speed PWM, advanced analog | High-Speed PWM, advanced analog | High-Speed PWM, advanced analog | SMPS-optimized PWM peripheral set |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Primary Use Case | General-purpose DSP + control, 256KB headroom | Cost-reduced variant for smaller firmware | Identical die, alternate ordering/speed code | Lowest-memory variant, simple control | Digital power / SMPS-focused designs |
Pangunahing mga Pagkakaiba
- Maximum Flash within the 44-TQFP GP504 footprint (kumpara saDSPIC33EP128GP504-I/PT)
- General-purpose peripheral balance vs SMPS-specialized variant (kumpara saDSPIC33EP256MC504-I/PT)
- Ordering-code flexibility with identical die (kumpara saDSPIC33EP256GP504-H/PT)
Talaan ng Disenyo
Supply a clean, well-decoupled 3.3V rail: place 0.1uF ceramic capacitors at each VDD pin pair plus one bulk 4.7uF-10uF near the 44-TQFP. Keep AVDD fed through an RC or ferrite filter from VDD so ADC noise stays low - critical when using the on-chip op amps and CTMU. The 70 MIPS core increases supply transient demands versus slower MCUs, so follow the family data sheet DS70000657J decoupling recommendations rather than generic MCU practice.
The 44-TQFP 10x10 mm footprint needs a solid ground plane and thermal relief under the package. Route PGECx/PGEDx ICSP pairs together and place a 2x5 ICSP header so any pin pair can be accessed for production programming - remember that PGEC and PGED must be used as matched pairs (e.g., PGEC2 with PGED2). Keep CANH/CANL traces as a controlled 120-ohm differential pair routed to the ECAN transceiver with a stub-free topology.
Two frequent dsPIC33E issues: (1) oscillator configuration - the 70 MIPS maximum is reached via PLL multiplication of the primary oscillator; incorrect PLLDIV/OSCCON settings cause lockup or brownout-sensitive startup, so validate configuration words before mass programming. (2) Emulation/debug pin conflicts - pins multiplexed with PGEC/PGED or JTAG functions must not be assigned to critical I/O if in-circuit debugging or ICSP is needed. Always check the latest Microchip errata for the dsPIC33EP GP50 family before tape-out.
Impormasyon ng Pagsunod sa Kautusan
RoHS compliant and lead-free per distributor listings (DigiKey, Mouser). REACH, halogen-free and conflict-minerals declarations should be confirmed via Microchip's official compliance portal.
