DSPIC33EP128MU202-E/MM - 16-bit 70 MIPS DSC, USB | Microchip
N.º de pieza: DSPIC33EP128MU202-E/MM ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $5.98 | $5,98 |
| 10 | $5.42 | $54,20 |
| 100 | $4.85 | $485,00 |
| 500 | $4.36 | $2.180,00 |
| 1.000 | $3.92 | $3.920,00 |
DSPIC33EP128MU202-E/MM Descripción general
A digital signal controller combines the computational power of a DSP with the peripheral set and ease of use of a microcontroller. DSCs sit within the broader embedded processor hierarchy - microcontroller unit (MCU) to DSP to DSC to system-on-chip - and are optimized for control loops that require both fast mathematical processing (multiply-accumulate operations) and rich analog and communication peripherals in a single chip.
Key differentiating features of this device include a modified Harvard architecture dsPIC33E CPU core running at up to 70 MIPS from a 3.0 V to 3.6 V supply, single-cycle MAC and dual-fetch capability for DSP-intensive algorithms, and an integrated USB 2.0 Full-Speed (12 Mbps) module with dedicated transceiver - uncommon at this memory density in a 28-pin footprint.
Technical depth: the dsPIC33E core supports 16-bit and 32-bit integer arithmetic plus DSP instructions, with two 40-bit accumulators and hardware divide support. The 12-bit ADC delivers up to 500 ksps with up to 10 channels, and the device also provides multiple UART, SPI, and I2C modules, output compare/input capture channels, and a 5 V tolerant I/O structure on many pins.
Typical applications include USB-enabled sensor and data-acquisition nodes, digital power supplies and battery chargers, motor-control systems, and portable instrumentation requiring the extended -40C to +125C temperature range specified by the -E suffix.
Design consideration: the core voltage is internally regulated via an external VCAP capacitor - do not omit this pin connection, and budget USB transceiver power from the 3.3 V rail. The 28-pin count limits pin muxing flexibility, so verify peripheral-to-pin assignments early in layout.
This page synthesizes distributor availability data, same-family drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet.
Alternativas directas para DSPIC33EP128MU202-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 DSPIC33EP128MU202-E/MM (mismo factor de forma y huella) — difiere en Package, Operating Temperature, Core, ADC Channels, Communication Interfaces.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
DSPIC33EP256MU202-E/MM
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DSPIC33EP64MU202-E/MM
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DSPIC33EP128MU202-I/MM
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$4.1 / unidad
Ver hoja de datos →DSPIC33EP128MC202-E/MM
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
Consulte el precio
Ver hoja de datos →DSPIC33EP128GP202-E/MM
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DSPIC33EP128MC202T-E/MM
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$3.41 / unidad
Ver hoja de datos →DSPIC33EP128MU202-E/MM Valores máximos y características eléctricas
| Core Architecture | 16-bit dsPIC33E DSC |
| Maximum CPU Speed | 70 MIPS |
| Program Memory (Flash) | 128 KB |
| SRAM | 16 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| ADC Resolution | 12-bit |
| ADC Channels | up to 10 |
| ADC Sample Rate | up to 500 ksps |
| USB | USB 2.0 Full-Speed (12 Mbps), device mode |
| Communication Interfaces | UART, SPI, I2C |
| Timers | 16-bit timers, Input Capture, Output Compare/PWM |
| Temperatura de funcionamiento | -40C to +125C (extended, -E suffix) |
| Encapsulado | QFN-S 28-pin (MM), 6x6 mm |
| Tipo de montaje | Surface Mount |
| In-Circuit Programming | ICSP via MCLR/PGC/PGD |
| Debug Support | In-Circuit Debug via ICSP interface |
Configuración de pines de DSPIC33EP128MU202-E/MM
| Pin 1 | MCLR — Master clear reset / ICSP programming voltage input |
| Pin 2 | AN0/VREF+/RB0 — Analog input 0 / ADC positive reference / port B0 |
| Pin 3 | AN1/VREF-/RB1 — Analog input 1 / ADC negative reference / port B1 |
| Pin 4 | AN2/RB2 — Analog input 2 / remappable I/O / port B2 |
| Pin 5 | AN3/RB3 — Analog input 3 / remappable I/O / port B3 |
| Pin 6 | AN4/RB4 — Analog input 4 / remappable I/O / port B4 |
| Pin 7 | VDD — Power supply (3.0 V to 3.6 V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/RA2 — Oscillator crystal input / clock input / port A2 |
| Pin 10 | OSC2/RA3 — Oscillator crystal output / clock output / port A3 |
| Pin 11 | VCAP — Internal core regulator output - external capacitor required |
| Pin 12 | AN5/RB5 — Analog input 5 / remappable I/O / port B5 |
| Pin 13 | AN6/RB6 — Analog input 6 / remappable I/O / port B6 |
| Pin 14 | AN7/RB7 — Analog input 7 / remappable I/O / port B7 |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Power supply (3.0 V to 3.6 V) |
| Pin 17 | RB8 — Remappable I/O / port B8 |
| Pin 18 | RB9 — Remappable I/O / port B9 |
| Pin 19 | VBUS — USB bus voltage sense (5 V) |
| Pin 20 | VUSB3V3 — USB transceiver 3.3 V power supply |
| Pin 21 | RF5 — Remappable I/O / port F5 |
| Pin 22 | RF4 — Remappable I/O / port F4 |
| Pin 23 | RF3 — Remappable I/O / port F3 |
| Pin 24 | RF2 — Remappable I/O / port F2 |
| Pin 25 | VDD — Power supply (3.0 V to 3.6 V) |
| Pin 26 | VSS — Ground reference |
| Pin 27 | RA0 — Remappable I/O / port A0 |
| Pin 28 | RA1 — Remappable I/O / port A1 |
Aplicaciones típicas
DSPIC33EP128MU202-E/MM es adecuado para 6 aplicacións: USB Data Acquisition and Sensor Nodes, Digital Power Supplies and Battery Chargers, Brushed and Low-Axis Motor Control, Portable and Battery-Powered Instrumentation, Industrial Automation and Sensing Front-Ends, Embedded Systems Education and Prototyping.
USB Data Acquisition and Sensor Nodes
The DSPIC33EP128MU202-E/MM's integrated USB 2.0 Full-Speed transceiver makes it a natural fit for USB-connected sensor and data-acquisition nodes that previously required a separate USB interface chip. The 12-bit ADC with up to 10 channels and 500 ksps throughput digitizes sensor signals directly, while the 70 MIPS DSP core performs filtering, scaling, and FFT processing before streaming results over USB at 12 Mbps. In a typical design, analog inputs feed the ADC through the internal multiplexer, a fixed 3.3 V rail powers VUSB3V3 and VDD, and the VBUS pin senses bus presence for self-powered operation. Using the device as a USB HID or vendor-custom class endpoint eliminates an external USB-UART or USB controller, saving board area in the 6x6 mm QFN-28 footprint. The 128 KB Flash accommodates USB stack, application, and bootloader comfortably in most designs.
Recomendado
Digital Power Supplies and Battery Chargers
Digital power designs benefit from the dsPIC33E core's single-cycle multiply-accumulate and dual 40-bit accumulators, which execute compensator calculations for voltage-mode or current-mode loops at 70 MIPS. The 12-bit ADC sampling up to 500 ksps synchronizes to the PWM timebase so current and voltage feedback are sampled at consistent points in each switching cycle. In a typical off-line charger or DC-DC module, the MU202 runs the outer control loop and supervisory logic, driving MOSFET gate drivers through output-compare PWM outputs while UART or I2C links report telemetry. The extended -40C to +125C rating of the -E suffix supports industrial enclosures with limited airflow. Note the core is internally regulated via the VCAP pin, so keep switching regulators physically separated from this pin, and maintain 3.0 V to 3.6 V on VDD with adequate decoupling to prevent ADC noise from nearby gate-driver switching.
Recomendado
Brushed and Low-Axis Motor Control
For compact motor-control nodes controlling brushed DC motors or single-axis BLDC drives where USB commissioning is valuable, the MU202 combines control processing and a USB service port in one 28-pin device. The 70 MIPS core executes field-oriented control or commutation loops, the 12-bit ADC reads phase currents and bus voltage, and output-compare channels generate complementary PWM. Because the MU202 lacks the dedicated motor-control PWM module of its MC202 sibling, high-accuracy complementary PWM with dead time is implemented in software or with modest external logic - acceptable for single-axis or brushed designs. The USB interface is commonly used as a commissioning and firmware-update port (USB bootloader), reducing field service cost. The extended temperature range suits automotive-adjacent under-hood-adjacent enclosures and industrial drives with heat sink derating.
Recomendado
Portable and Battery-Powered Instrumentation
Handheld meters, portable analyzers, and battery-powered loggers exploit the MU202's density: a full 70 MIPS DSC with USB in a 6x6 mm QFN-28 minimizes board area in constrained enclosures. The 128 KB Flash and 16 KB RAM host measurement algorithms, calibration tables, and a USB mass-storage or HID interface for PC connectivity, and the DSP instructions accelerate windowing and spectral analysis. When the unit is USB-connected, the 5 V VBUS can be regulated down to supply the 3.3 V rail; on battery, an LDO or buck converter supplies the 3.0 V to 3.6 V window. The extended -40C to +125C rating supports outdoor and vehicle-mounted instruments. Designers should budget power modes carefully - sleep and idle states reduce average consumption substantially compared with full 70 MIPS operation, which matters for battery life targets.
Recomendado
Industrial Automation and Sensing Front-Ends
In factory automation, the -E extended temperature rating (-40C to +125C) keeps the MU202 reliable in sealed cabinets, near motors, and on machine walls where ambient temperatures soar. The I2C, SPI, and UART modules connect to sensors, displays, and supervisory PLCs, while the 12-bit ADC acquires analog process signals at up to 500 ksps. The DSP capability supports vibration monitoring and predictive-maintenance algorithms - computing RMS, FFT, and envelope detection locally before raising alerts - and the USB port doubles as a service interface for configuration in the field. Remappable Peripheral Pin Select (PPS) routing eases PCB layout around existing connector footprints. The 28-pin budget means designers should plan peripheral-to-pin assignments early, since dense muxing concentrates multiple functions onto each remappable RPn pin.
Recomendado
Embedded Systems Education and Prototyping
The dsPIC33EP family remains a common teaching platform for embedded DSP and control courses, and the MU202 in QFN-28 serves both low-cost student boards and USB-connected lab hardware. The free MPLAB X IDE and XC16 compiler, plus in-circuit debugging via the MCLR/PGC/PGD pins, give students full toolchain access without licensing cost, and the 128 KB Flash permits room for experimentation. USB device support lets a lab board enumerate as HID or virtual COM port with no extra silicon, and the 12-bit ADC plus DSP instructions demonstrate real signal-processing on live data. For prototyping, note the QFN-28 0.5 mm pitch requires a good soldering setup or adapter boards; the same silicon is available in the wider-pitch 28-pin SPDIP (SP) package (e.g., DSPIC33EP128MU202-E/SP) for breadboard-friendly first builds.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para DSPIC33EP128MU202-E/MM — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | DSPIC33EP256MU202-E/MM | DSPIC33EP64MU202-E/MM | DSPIC33EP128MC202-E/MM | DSPIC33EP128GP202-E/MM |
|---|---|---|---|---|---|
| Package | QFN-S 28-pin (MM) | QFN-S 28-pin (MM) - same | QFN-S 28-pin (MM) - same | QFN-S 28-pin (MM) - same | QFN-S 28-pin (MM) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 256 KB | 64 KB | 128 KB | 128 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| USB Module | Yes - USB 2.0 Full-Speed | Yes - USB 2.0 Full-Speed | Yes - USB 2.0 Full-Speed | No | No |
| ADC | 12-bit, up to 10 ch | 12-bit, up to 10 ch | 12-bit, up to 10 ch | 12-bit, up to 10 ch | 12-bit, up to 10 ch |
| Operating Temperature | -40C to +125C (-E) | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| Special Peripherals | USB, standard PWM (OC) | USB, standard PWM (OC) | USB, standard PWM (OC) | Motor-control PWM, no USB | Standard peripherals, no USB |
Diferenciadores clave
- Integrated USB 2.0 Full-Speed in 28-pin footprint (frente a DSPIC33EP128GP202-E/MM)
- Extended -40C to +125C temperature range (frente a DSPIC33EP128MU202-I/MM)
- Trade-off: no dedicated motor-control PWM (frente a DSPIC33EP128MC202-E/MM)
Notas de diseño
The dsPIC33E core is supplied by an internal LDO whose output appears on the VCAP pin. Fit a low-ESR ceramic capacitor (typically 10 uF in parallel with 0.1 uF, per the Microchip datasheet recommendation) directly at VCAP; omitting it or using excessive ESR causes unstable core voltage and erratic resets. VDD must stay within 3.0 V to 3.6 V across all conditions including USB-transceiver load transients, and VUSB3V3 needs its own clean 3.3 V feed with local decoupling - do not derive it from a shared long trace.
Use Peripheral Pin Select (PPS) assignments before routing: on this 28-pin device many UART/SPI/I2C/CPP functions map onto a limited set of RPn pins, and routing first can force awkward jumper fixes later. Place the 0.1 uF decoupling capacitor at each VDD pin within 2 mm, connect all VSS pins to a solid ground plane, and keep the VCAP capacitor away from high dv/dt nodes. For USB routing, keep D+/D- as a matched-length pair with a series resistor option at the connector.
Three frequent mistakes with this device: (1) treating the -E part like an industrial -I part - the 125C rating still requires junction-temperature margin at high clock rates; verify theta_JA against your copper pour. (2) Assuming the MU202 has the MC202's dedicated motor-control PWM - it does not; complementary PWM with dead time must be built from output-compare channels. (3) Selecting the wrong temperature grade for programming: the /MM QFN needs ICSP programming after reflow since it cannot be socketed easily.
Información de cumplimiento
RoHS compliance and lead-free status per standard Microchip dsPIC33EP portfolio offerings; obtain the formal material declaration certificate from the Microchip product page for REACH and conflict-minerals confirmation.
