DSPIC33EP128MU502-E/MM - 70MIPS 16-bit DSC, USB, QFN-28 | Microchip
N.º de pieza: DSPIC33EP128MU502-E/MM ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 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 Descripción general
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.
Alternativas directas para DSPIC33EP128MU502-E/MM — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con DSPIC33EP128MU502-E/MM (mismo factor de forma y huella) — difiere en Package, Timers, Operating Temperature, Communication Interfaces.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
DSPIC33EP128MU502-I/MM
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$3.98 / unidad
Ver hoja de datos →DSPIC33EP256MU502-I/MM
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DSPIC33EP64MU502-I/MM
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DSPIC33EP128MC502-I/MM
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
DSPIC33EP128MC202T-E/MM
✅ Sustitución directa✓ En stock
$3.41 / unidad
Ver hoja de datos →DSPIC33EP128MU502-E/MM Valores máximos y características eléctricas
| 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 |
| Temperatura de funcionamiento | -40C to +125C (E grade) |
| Encapsulado | QFN-28 (MM), 6x6 mm |
| Tipo de montaje | 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 |
Guía de configuración de pines de DSPIC33EP128MU502-E/MM qfn-28 (mm), 6x6 mm
Configuración de pines para DSPIC33EP128MU502-E/MM (encapsulado qfn-28 (mm), 6x6 mm). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para DSPIC33EP128MU502-E/MM.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
DSPIC33EP128MU502-E/MM es adecuado para 6 aplicacións: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para DSPIC33EP128MU502-E/MM — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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 |
Diferenciadores clave
- Integrated Full-Speed USB 2.0 device PHY (frente a DSPIC33EP128MC502-I/MM)
- Extended temperature grade (frente a DSPIC33EP128MU502-I/MM)
- Balanced memory in the smallest MU footprint (frente a DSPIC33EP256MU502-I/MM)
- Pin-compatible supply-chain fallback (frente a DSPIC33EP64MU502-I/MM)
Notas de diseño
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.
Información de cumplimiento
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.
