DSPIC33EP128MU502-E/MM - 70MIPS 16-bit DSC, USB, QFN-28 | Microchip
부품 번호: DSPIC33EP128MU502-E/MM ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $6.12 | $6.12 |
| 10 | $5.55 | $55.50 |
| 100 | $4.98 | $498.00 |
| 500 | $4.52 | $2,260.00 |
| 1,000 | $4.1 | $4,100.00 |
DSPIC33EP128MU502-E/MM 개요
A digital signal controller combines the computational capabilities of a digital signal processor (DSP) with the peripherals and ease of use of a microcontroller (MCU). Within the power-management hierarchy of embedded systems, a DSC sits between a general-purpose microcontroller and a dedicated DSP, providing hardware multiply-accumulate (MAC) units, fast interrupt handling, and deterministic execution for control loops such as digital power conversion, motor control, and audio filtering.
Key features of the DSPIC33EP128MU502-E include the DSP engine with dual 40-bit accumulators, an upstream-facing Full-Speed USB controller with built-in PHY, a 12-bit ADC with up to 10.9 msps throughput for fast analog sampling, and multiple UART, SPI, and I2C communication interfaces for system connectivity. The -E suffix designates the extended temperature range of -40C to +125C, making this device suitable for industrial and automotive-adjacent environments.
Architecturally, the dsPIC33E family executes the modified Harvard instruction set at up to 70 MIPS from a 3.0V to 3.6V supply, with oscillator options including an internal fast RC oscillator and crystal-driven PLL for frequency-critical USB operation. Flexible pin remapping (peripheral pin select) on RPx pins allows UART, SPI, and other digital peripherals to be routed to available I/O, simplifying board layout in a compact 28-pin footprint.
Typical applications include USB-connected industrial sensors and data loggers, digital power supplies requiring high-rate ADC feedback, brushless DC and PMSM motor control, and audio or communications equipment needing DSP-level math on a low-cost controller.
A key design consideration is powering VUSB3V3 from a separate regulated 3.3V rail and placing the VCAP/VDDCORE stabilizing capacitor per the manufacturer datasheet to guarantee reliable core-voltage generation and USB compliance.
This page synthesizes verified distributor data, same-package drop-in alternatives, pricing tiers, and practical design notes not found on the manufacturer datasheet alone, for buyers and design engineers researching the DSPIC33EP128MU502-E/MM.
드롭인 대체품: DSPIC33EP128MU502-E/MM — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: DSPIC33EP128MU502-E/MM (동일 폼 팩터 및 풋프린트) — 차이점: Package, Timers, Operating Temperature, Communication Interfaces.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
DSPIC33EP128MU502-I/MM
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$3.98 / 개
데이터시트 보기 →DSPIC33EP256MU502-I/MM
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPIC33EP64MU502-I/MM
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPIC33EP128MC502-I/MM
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DSPIC33EP128MC202T-E/MM
✅ 드롭인✓ 재고 있음
$3.41 / 개
데이터시트 보기 →DSPIC33EP128MU502-E/MM 최대 정격 & 전기적 특성
| Core Type | 16-bit dsPIC33E DSC |
| Program Memory (Flash) | 128 KB |
| RAM | 16 KB |
| Maximum Operating Speed | 70 MIPS |
| ADC Resolution | 12-bit |
| ADC Sample Rate | Up to 10.9 msps |
| USB | USB 2.0 Full-Speed device, built-in PHY |
| Supply Voltage Range | 3.0 V to 3.6 V |
| 동작 온도 | -40C to +125C (E grade) |
| 패키지 | QFN-28 (MM), 6x6 mm |
| 실장 유형 | Surface Mount |
| Communication Interfaces | UART, SPI, I2C |
| Timers | 16-bit timers, Input Capture / Output Compare, Motor Control PWM |
| Peripheral Pin Select | Yes (RPx remapping) |
| Product Category | Digital Signal Processors & Controllers - DSP, DSC |
DSPIC33EP128MU502-E/MM qfn-28 (mm), 6x6 mm 핀 구성 가이드
DSPIC33EP128MU502-E/MM(qfn-28 (mm), 6x6 mm 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: DSPIC33EP128MU502-E/MM.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
DSPIC33EP128MU502-E/MM 적합 용도: 6 애플리케이션s: USB-Connected Industrial Sensors and Data Loggers, Digital Power Supplies (SMPS/PFC), Brushless DC and PMSM Motor Control, Audio and Communications DSP Processing, USB Test and Measurement Instruments, Automotive-Adjacent and Harsh-Environment Embedded Control.
USB-Connected Industrial Sensors and Data Loggers
The DSPIC33EP128MU502-E/MM fits USB-connected sensor nodes because it is one of the few dsPIC33E devices combining a Full-Speed USB 2.0 device PHY with a 12-bit ADC and 70 MIPS DSP math in a compact 28-pin QFN-28 footprint. In a typical design, the 12-bit ADC samples sensor channels at up to 10.9 msps, the DSP engine applies digital filtering or calibration, and the USB CDC/HID class streams data to a host PC without an external USB-to-serial bridge. The -40C to +125C extended temperature grade tolerates enclosed industrial cabinets. Supply from a 3.3V rail and reserve one pin-remappable RPx pin for USB detection logic.
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Digital Power Supplies (SMPS/PFC)
The DSPIC33EP128MU502-E/MM suits digital power conversion because its 70 MIPS core closes control loops with sub-15-cycle latency and its 12-bit ADC achieves up to 10.9 msps for fast current and voltage feedback. The hardware MAC engine executes PI or 2p2z compensators efficiently, while output-compare/PWM resources drive switching stages. At -40C to +125C the -E grade survives power-supply self-heating near magnetics. One design consideration: this MU variant's USB module can serve as an in-system tuning interface for firmware parameter adjustment, but USB is disabled during power stages commissioning to guarantee deterministic loop timing.
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Brushless DC and PMSM Motor Control
The DSPIC33EP128MU502-E/MM supports field-oriented control (FOC) of BLDC/PMSM motors: the 70 MIPS core executes Clarke/Park transforms and PI current loops within a 50 us PWM period using the dual 40-bit accumulator DSP engine, and the 12-bit ADC synchronizes current sampling to PWM centers via trigger mode. Peripheral pin select lets designers route capture and PWM-adjacent signals optimally on the 28-pin QFN footprint. For applications prioritizing advanced PWM fault handling over USB connectivity, the MC-family variant DSPIC33EP128MC502 offers motor-control-optimized peripherals in the identical package, making family-level migration straightforward.
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Audio and Communications DSP Processing
The DSPIC33EP128MU502-E/MM handles moderate-rate audio processing because its hardware MAC with dual 40-bit accumulators executes FIR/IIR filtering, AGC, and tone generation with deterministic 70 MIPS timing, while USB Full-Speed supports audio-class streaming to a host at up to 12 Mbps. The 16 KB RAM buffers USB endpoints and double-buffered sample frames; the 12-bit ADC digitizes microphone or line inputs directly for simple voice-band channels. For higher-fidelity paths, pair the controller with an external audio codec over the I2S-capable remappable pins. Deterministic interrupt latency keeps jitter below audible thresholds in typical voice-band designs.
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USB Test and Measurement Instruments
The DSPIC33EP128MU502-E/MM serves as the acquisition and control core in compact USB instruments: the 12-bit ADC digitizes measured signals at up to 10.9 msps, the DSP engine performs averaging, RMS computation, and FFT-based analysis, and the integrated Full-Speed USB device PHY transfers results to host software with no external bridge IC. The 28-pin QFN (6x6 mm) package keeps instrument PCBs small, and the -40C to +125C rating covers rack-mounted thermal conditions. Designers should place the VCAP/VDDCORE capacitor close to the pin and provide a clean 3.3V VUSB3V3 rail to maintain USB signal integrity during ADC sampling bursts.
추천
Automotive-Adjacent and Harsh-Environment Embedded Control
The DSPIC33EP128MU502-E/MM's extended -40C to +125C operating range (E grade) qualifies it for harsh-environment controllers such as under-hood auxiliary modules, industrial actuator drivers, and outdoor equipment monitoring, where cabin or enclosure temperatures routinely exceed standard industrial limits. The 70 MIPS core runs control and communications tasks; UART, SPI, and I2C interfaces link to LIN transceivers, sensors, and EEPROMs; and peripheral pin select adapts the 28-pin pinout to legacy board designs. Note this device is not AEC-Q100 qualified; for formal automotive qualification, verify current Microchip automotive-grade listings before design-in.
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추천 제품 요약
엔지니어링 참조 데이터: DSPIC33EP128MU502-E/MM — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | DSPIC33EP128MU502-I/MM | DSPIC33EP256MU502-I/MM | DSPIC33EP64MU502-I/MM | DSPIC33EP128MC502-I/MM | DSPIC33EP128MC202T-E/MM |
|---|---|---|---|---|---|---|
| Package | QFN-28 (MM), 6x6 mm | QFN-28 (MM) - same | QFN-28 (MM) - same | QFN-28 (MM) - same | QFN-28 (MM) - same | QFN-28 (MM) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 128 KB | 128 KB | 256 KB | 64 KB | 128 KB | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 8 KB | 16 KB | 16 KB |
| USB Module | USB 2.0 Full-Speed device | USB 2.0 Full-Speed device | USB 2.0 Full-Speed device | USB 2.0 Full-Speed device | No USB | No USB |
| Core Performance | 70 MIPS, 16-bit DSP | 70 MIPS, 16-bit DSP | 70 MIPS, 16-bit DSP | 70 MIPS, 16-bit DSP | 70 MIPS, 16-bit DSP | 70 MIPS, 16-bit DSP |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) |
| ADC | 12-bit, up to 10.9 msps | 12-bit, up to 10.9 msps | 12-bit, up to 10.9 msps | 12-bit, up to 10.9 msps | 12-bit, up to 10.9 msps | 12-bit, up to 10.9 msps |
| Peripheral Set Focus | USB + general purpose | USB + general purpose | USB + general purpose | USB + general purpose | Motor-control PWM, no USB | Motor-control PWM, no USB |
주요 차별점
- Integrated Full-Speed USB 2.0 device PHY (vs DSPIC33EP128MC502-I/MM)
- Extended temperature grade (vs DSPIC33EP128MU502-I/MM)
- Balanced memory in the smallest MU footprint (vs DSPIC33EP256MU502-I/MM)
- Pin-compatible supply-chain fallback (vs DSPIC33EP64MU502-I/MM)
설계 노트
The dsPIC33EP core is powered from an internal regulator: connect VDD to a clean 3.0V-3.6V rail and fit the manufacturer-specified low-ESR capacitor on the VCAP/VDDCORE pin, placed within a few millimeters of the pin. When USB is used, supply the VUSB3V3 pin from a separate regulated 3.3V source per the datasheet; do not tie it directly to a noisy main 3.3V rail that also powers relays or LEDs. Estimated voltage-drop concerns do not apply here, but sequencing and regulator load rating must cover inrush into bulk capacitors.
The 28-pin QFN (MM) package has an exposed thermal pad that should be soldered to a grounded copper pour for both thermal relief and ground integrity. Place 100 nF ceramic decoupling capacitors at each VDD pin pair within 2 mm of the pin, plus one 4.7 uF-10 uF bulk capacitor. Keep the VCAP capacitor isolated from fast-switching ground currents. For USB, route D+/D- as a matched 90-ohm differential pair with length matching within 1 mm and keep them away from PWM and switching nodes.
The MM QFN footprint differs from the SP (SPDIP) and SS (SSOP) versions of the same die; they are not interchangeable on the same land pattern, so qualify the exact suffix before second-sourcing. ADC channels and RPx remappable pins are shared and multiplexed - verify in the I/O map that chosen pins are available simultaneously with USB enabled, since USB pins are fixed. Finally, configure configuration fuses (oscillator, watchdog, brown-out) deliberately in code; defaults may not start the PLL needed for the 70 MIPS and USB clock domains.
When sampling with the 12-bit ADC at high rates, reference the ADC to a quiet VREF and add a small RC (e.g., 100 ohm + 1 nF, Estimated: values are design starting points, not datasheet requirements) at analog inputs to absorb sample-and-hold charge kickback. Separate the analog ground return from PWM-driven motor or power ground paths, joining them at a single star point. Use the ADC trigger-from-PWM mode so conversions occur away from switching edges, substantially reducing noise-induced conversion error.
규정 준수 정보
Compliance data was not explicitly stated in the verified web sources reviewed. Verify RoHS/REACH status on the official Microchip product page or distributor compliance documentation before design release.
