DSPIC33EP256MC502-E/SO - 16-bit 60 MIPS DSC 256KB Flash | Microchip
MPN: DSPIC33EP256MC502-E/SO ✓ Hoạt độngDSPIC33EP256MC502-E/SO Tóm tắt
A digital signal controller combines the compute architecture of a microcontroller with the mathematical throughput of a DSP. Within the power management hierarchy of embedded systems, a DSC such as the dsPIC33EP256MC502 sits between a general-purpose MCU and a dedicated DSP, providing deterministic single-cycle MAC (multiply-accumulate) instructions plus the peripherals needed for closed-loop control.
Key features include the 16-bit dsPIC DSC core with DSP engine, up to 70 MIPS capability in the family (60 MHz operation for this part), high-resolution PWM modules suited to motor control, integrated operational amplifiers and high-speed 10/12-bit ADCs, plus standard serial interfaces (UART, SPI, I2C). The E-grade temperature rating of -40C to +125C and AEC-Q100 qualification reported by distributors make it suitable for harsh automotive and industrial environments.
Architecturally, the device uses an enhanced Harvard pipeline with 24-bit instruction words, hardware looping and bit-reversed addressing for FFT-class algorithms, and multiple interrupt vector tables for deterministic real-time response. Flash self-programming supports field firmware updates.
Typical applications include precision motor control (BLDC, PMSM, ACIM with field-oriented control), digital power supplies and inverters, and sensor signal conditioning where the on-chip op amps and ADC close analog loops without external components.
Design consideration: the VCAP/VDDCORE pin requires an external low-ESR capacitor (per the manufacturer datasheet) for the internal core regulator; omitting it prevents reliable startup.
This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33EP256MC502-E/SO — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với DSPIC33EP256MC502-E/SO (cùng hình factor và footprint) — khác nhau ở Package, ADC Resolution, Operating Temperature, Core Architecture, Maximum CPU Speed.
DSPIC33EP256MC502-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33EP256MC202-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33EP128MC502-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33EP128MU502-E/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33EP64MC502-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33EP256MC502-E/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | 16-bit dsPIC DSC core |
| Maximum CPU Speed | 60 MIPS |
| Program Memory (Flash) | 256KB (85.5K x 24) |
| SRAM | 32KB |
| Hộp | 28-SOIC (7.50 mm wide) |
| Khoảng nhiệt độ hoạt động | -40C to +125C |
| Kiểu lắp đặt | Surface Mount |
| PWM Peripherals | High-speed PWM for motor control |
| ADC Resolution | 10/12-bit high-speed ADC |
| On-chip Op Amps | Yes (integrated op amps) |
| Serial Interfaces | UART, SPI, I2C |
| ICSP Programming | Yes (multiple PGECx/PGEDx pairs) |
| AEC-Q100 | Qualified (per Microchip USA distributor listing) |
| Trạng thái RoHS | Compliant |
| Core Regulator | Internal regulator with external VCAP pin |
Cấu hình chân DSPIC33EP256MC502-E/SO
| Chân 1 | MCLR — Master clear reset (active low) / programming voltage input |
| Chân 2 | AN0/VREF+/CN3/RB0 — Analog input 0 / ADC positive reference / change notification |
| Chân 3 | AN1/VREF-/CN2/RB1 — Analog input 1 / ADC negative reference |
| Chân 4 | PGED1/AN2/C1IN-/RP1/RB2 — ICSP data 1 / analog input 2 / comparator input / remappable pin |
| Chân 5 | PGEC1/AN3/C1IN+/RP2/RB3 — ICSP clock 1 / analog input 3 / comparator input / remappable pin |
| Chân 6 | AN4/C1IN-/RP3/RB4 — Analog input 4 / comparator input / remappable pin |
| Chân 7 | VDD — Positive supply |
| Chân 8 | VSS — Ground |
| Chân 9 | OSC1/CLKI/RA2 — Oscillator crystal input / external clock input |
| Chân 10 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output |
| Chân 11 | EMUD1/SDA1/RP35/RF3 — Emulation data 1 / I2C data 1 / remappable pin |
| Chân 12 | EMUC1/SCL1/RP36/RF2 — Emulation clock 1 / I2C clock 1 / remappable pin |
| Chân 13 | PGED2/EMUD3/AN5/C1IN+/RP0/RB5 — ICSP data 2 / analog input 5 / remappable pin |
| Chân 14 | VSS — Ground |
| Chân 15 | PGEC2/EMUC3/AN6/OCFA/RB6 — ICSP clock 2 / analog input 6 / PWM fault input |
| Chân 16 | AN7/RB7 — Analog input 7 / general purpose I/O |
| Chân 17 | AN8/RB8 — Analog input 8 / general purpose I/O |
| Chân 18 | AN9/RB9 — Analog input 9 / general purpose I/O |
| Chân 19 | AN10/RB10 — Analog input 10 / general purpose I/O |
| Chân 20 | AN11/RB11 — Analog input 11 / general purpose I/O |
| Chân 21 | AN12/RB12 — Analog input 12 / general purpose I/O |
| Chân 22 | AN13/RB13 — Analog input 13 / general purpose I/O |
| Chân 23 | AN14/RB14 — Analog input 14 / general purpose I/O |
| Chân 24 | AN15/RB15 — Analog input 15 / general purpose I/O |
| Chân 25 | AVSS — Analog ground |
| Chân 26 | AVDD — Analog positive supply |
| Chân 27 | VCAP/VDDCORE — Internal core regulator output - external low-ESR capacitor required |
| Chân 28 | VDD — Positive supply |
Ứng dụng tiêu biểu
DSPIC33EP256MC502-E/SO phù hợp cho 6 Áp dụngs: BLDC/PMSM Motor Control (Field-Oriented Control), Digital Power Supplies and Inverters, Industrial Automation and Control Nodes, Automotive Auxiliary Control Units, Sensor Signal Conditioning and Data Acquisition, Appliance and HVAC Motor Drives.
BLDC/PMSM Motor Control (Field-Oriented Control)
The DSPIC33EP256MC502-E/SO is purpose-built by Microchip for precision motor control. Its high-speed PWM module generates complementary outputs with hardware dead-time, while the 60 MIPS DSP engine executes the Clarke/Park transforms and PI loops of field-oriented control (FOC) in a single 28-pin SOIC device. The integrated op amps condition shunt-resistor current feedback directly into the high-speed ADC, eliminating external amplifiers and reducing loop latency. Placed between the gate driver and current-sense shunts, the controller closes a current loop fast enough for tens-of-kilohertz switching frequencies; the E-grade -40C to +125C rating supports under-hood and sealed industrial drives.
Được đề xuất
Digital Power Supplies and Inverters
In digital power designs such as PFC stages, LLC and phase-shifted full-bridge converters, the DSPIC33EP256MC502-E/SO acts as the digital control loop core. Its 60 MIPS core executes voltage and current compensation loops at rates matching switching frequencies in the tens of kilohertz, and the high-resolution PWM provides phase-shift control with hardware dead-time insertion for zero-voltage-switching topologies. The high-speed ADC samples feedback signals synchronously with the PWM period, minimizing loop delay that would otherwise limit achievable bandwidth. The 256KB Flash leaves ample room for communication stacks and firmware-update images in field-deployed power products.
Được đề xuất
Industrial Automation and Control Nodes
The DSPIC33EP256MC502-E/SO fits industrial control nodes that combine real-time control with serial connectivity. The 60 MIPS core with DSP instructions handles filtering, FFT-based condition monitoring, and control algorithms, while UART, SPI and I2C interfaces connect the node to PLC backbones, sensors and HMIs. The 28-SOIC package is widely used in retrofit and legacy industrial boards, and the -40C to +125C temperature range withstands panel and machinery environments. Multiple PGECx/PGEDx pairs allow in-system firmware updates without removing the device, supporting long service-life industrial equipment.
Được đề xuất
Automotive Auxiliary Control Units
With AEC-Q100 qualification and the E-grade -40C to +125C temperature range, the DSPIC33EP256MC502-E/SO targets automotive auxiliary control functions such as pump/fan motor drives, actuator control, and sensor fusion pre-processing. The 28-SOIC package suits compact, cost-sensitive ECU daughter boards, and the internal core regulator with external VCAP capacitor reduces the external power-tree complexity. Designers should follow Microchip's automotive qualification documentation and board-level guidelines for load-dump robustness at the supply input, and the 256KB Flash accommodates diagnostic and calibration code layers required in automotive software.
Được đề xuất
Sensor Signal Conditioning and Data Acquisition
The on-chip op amps and high-speed 10/12-bit ADC make the DSPIC33EP256MC502-E/SO a compact sensor-conditioning hub. Bridge or shunt signals can be amplified by the internal op amps and digitized without external analog ICs, while the 60 MIPS DSP engine applies digital filtering (IIR/FIR), oversampling and calibration math in real time. The 32KB SRAM buffers waveforms for analysis or burst transmission over UART/SPI. The E-grade temperature rating keeps gain and offset calibration valid across harsh environments, making the device attractive for industrial pressure/flow sensors and portable instrumentation built around the 28-SOIC footprint.
Được đề xuất
Appliance and HVAC Motor Drives
Consumer appliance and HVAC systems use the DSPIC33EP256MC502-E/SO to drive BLDC fans, compressors and pumps with sensorless or sensored control. The high-speed PWM with complementary outputs and dead-time drives standard three-phase gate-driver topologies, and the integrated op amps read leg-shunt currents for sensorless FOC, reducing BOM cost versus discrete signal-chain solutions. The 28-SOIC package is hand-processable for low-volume appliance repair boards and automated for volume production. The 256KB Flash stores multiple control profiles and OTA-style update code, a common requirement in connected appliance platforms.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33EP256MC502-E/SO — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | DSPIC33EP256MC502-I/SO | DSPIC33EP256MC202-I/SO | DSPIC33EP128MC502-I/SO | DSPIC33EP128MU502-E/SO | DSPIC33EP64MC502-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC (7.50 mm) | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256KB (85.5K x 24) | 256KB | 256KB | 128KB | 128KB | 64KB |
| CPU Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C | -40C to +85C (I grade) | -40C to +85C | -40C to +125C | -40C to +85C |
| USB Peripheral | No | No | No | No | Yes (full-speed USB) | No |
| Typical Use Case | Automotive/extended-temp precision motor control | Industrial motor control (up to 85C) | Reduced-peripheral motor control | Cost-optimized motor control | Extended-temp USB-connected control | Small-footprint motor control |
Bảo phân biệt quan trọng
- Extended temperature range for automotive environments (vsDSPIC33EP256MC502-I/SO)
- Full 256KB Flash in 28-pin footprint (vsDSPIC33EP128MC502-I/SO)
- Motor-control analog integration (vsDSPIC33EP128MU502-E/SO)
Ghi chú thiết kế
The internal core regulator requires a low-ESR ceramic capacitor (value per family datasheet DS70000657J) on the VCAP/VDDCORE pin (pin 27). Never drive this pin externally and do not place inductance between it and the capacitor. Decouple each VDD pin with 0.1 uF ceramic placed within 5 mm, and filter AVDD (pin 26) through an RC or ferrite from the digital 3.3V rail to preserve ADC accuracy in motor-control sampling loops.
Route PWM outputs away from the analog inputs feeding the on-chip op amps and ADC; the synchronous sampling architecture helps, but ground bounce from gate-drive switching can still couple into shunt signals. Use a solid ground plane, connect AVSS and VSS at a single low-impedance point, and keep the PGEC/PGED programming pairs routed to a 5-pin header for in-system updates - matched pairs must stay as pairs per NSDSP programming guidance.
Two frequent mistakes: (1) selecting the I-grade (-40C to +85C) part for an enclosure that reaches 100C - only the E/SO grade covers +125C; (2) leaving the PWM fault input (OCFA on pin 15) unconnected instead of wiring it to the gate-driver fault signal, which disables hardware fast shutdown and risks shoot-through during a fault. Also confirm which PGECx/PGEDx pair your programmer expects before finalizing the header pinout.
Use the Peripheral Pin Select (PPS) feature to keep high-frequency PWM outputs and remappable RPx pins on the side of the package facing the gate drivers, minimizing trace length. For I2C (SDA1/SCL1 on pins 11-12), fit pull-up resistors sized for bus capacitance; at 400 kHz this is typically 2-4 kOhm on a 3.3V rail. Estimated values - verify against bus load in your layout.
Thông tin tuân thủ
AEC-Q100 qualification and -40C to +125C range per Microchip USA distributor listing. RoHS/lead-free per standard Microchip E/SO product offering; verify REACH and conflict-mineral declarations on microchip.com.
