DSPIC33EP128MU206-E/PT - 16-bit DSC 128KB Flash USB TQFP-64 | Microchip
MPN: DSPIC33EP128MU206-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.95 | $6.95 |
| 10 | $6.31 | $63.10 |
| 100 | $5.62 | $562.00 |
| 500 | $5.05 | $2,525.00 |
| 1,000 | $4.58 | $4,580.00 |
DSPIC33EP128MU206-E/PT Overview
A digital signal controller combines the compute architecture of a microcontroller with the mathematical throughput of a DSP, sitting in the power/performance hierarchy between general-purpose MCUs and dedicated DSP ICs. The dsPIC33E family adds fast multiply-accumulate hardware, barrel shifters, and modulo/bit-reversed addressing for efficient filtering and control-loop mathematics.
Key features include 1 KB of data EEPROM in flash, rich connectivity (USB OTG, up to 4 UART, 3 SPI, 4 I2C modules), peripheral pin select (PPS) for flexible pin mapping, and the MU-series analog integration that pairs the 12-bit ADC with three op-amps for signal conditioning directly on-chip. Multiple power management modes (idle, doze, sleep) reduce consumption in battery-operated designs.
Typical applications include motor control and drives, digital power conversion, USB-connected industrial sensors, and general-purpose embedded control that benefits from DSP math. The extended temperature grade (-E) supports harsh industrial and automotive-adjacent environments.
Design consideration: the 64-pin TQFP uses peripheral pin select for digital functions, so pin assignment must be configured in software at startup; also provide a clean 3.3 V rail (3.0 V to 3.6 V) and follow Microchip's USB layout guidance for VBUS and differential pairs.
This page adds distributor stocking data, drop-in family alternatives, and practical design guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33EP128MU206-E/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DSPIC33EP128MU206-E/PT (same form factor and footprint) — differing in Package, Core, Supply Voltage, Operating Temperature, Max CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP256MU206-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MU206-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MU206-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.91 / Unit
View Datasheet →DSPIC33EP128MC206-I/PT
✅ Drop-In✓ In Stock
$3.95 / Unit
View Datasheet →DSPIC33EP128GM306-E/PT
✅ Drop-In✓ In Stock
$6.15 / Unit
View Datasheet →DSPIC33EP128MU206-E/PT Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC33E DSC core with DSP engine |
| Max CPU Speed | 70 MIPS |
| Flash Memory | 128 KB |
| RAM | 16 KB |
| Data EEPROM | 1 KB |
| ADC Resolution | 12-bit |
| On-Chip Op-Amps | 3 |
| USB Interface | USB 2.0 Full-Speed OTG |
| Communication Peripherals | UART, SPI, I2C |
| Motor Control PWM | Yes (MC PWM) |
| Quadrature Encoder Interface | Yes (QEI) |
| CTMU | Yes (charge time measurement unit) |
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (E grade) |
| Package | TQFP-64 (10x10x1 mm) |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| Base Part Number | DSPIC33EP128MU206 |
DSPIC33EP128MU206-E/PT tqfp-64 (10x10x1 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP128MU206-E/PT (tqfp-64 (10x10x1 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33EP128MU206-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128MU206-E/PT is suitable for 6 applications: USB-Connected Industrial Sensors and Instruments, Motor Control and Drives, Digital Power Conversion, Embedded Audio and DSP Signal Processing, Touch Sensing and Human Interface, Data Loggers and Portable Test Equipment.
USB-Connected Industrial Sensors and Instruments
The DSPIC33EP128MU206-E/PT fits USB-connected instrumentation because it is one of the few dsPIC33EP devices integrating a full-speed USB 2.0 OTG module with a 70 MIPS DSP core and a 12-bit ADC. The three on-chip op-amps condition sensor outputs (strain gauges, thermocouple front ends, current shunts) before digitization, reducing external component count and board area. In a typical design, the DSC runs the USB device stack alongside a DSP filtering loop, sampling through the ADC and streaming processed data to a host PC. Because the -E grade covers -40C to +125C, the same PCB can serve both office-grade instruments and harsh factory-floor environments. Peripheral Pin Select lets engineers place UART/SPI pins optimally for auxiliary circuitry without hardware muxes.
Recommended
Motor Control and Drives
The DSPIC33EP128MU206-E/PT supports motor control via its motor-control PWM module and quadrature encoder interface (QEI), executing field-oriented control (FOC) mathematics on the 70 MIPS DSP engine with single-cycle MAC instructions. Sensor feedback from encoders enters through the QEI while phase currents are sampled by the 12-bit ADC, optionally amplified by the three on-chip op-amps before conversion - removing external amplifier ICs from the current-sense path. Although the MC206 is the dedicated motor-control variant without USB, the MU206 is chosen when the drive must also expose a USB commissioning or diagnostics port. Careful PWM dead-time configuration and ADC-trigger synchronization with the PWM module are essential for accurate current sampling in each switching cycle.
Recommended
Digital Power Conversion
In digital power supplies, PFC stages, and DC-DC converters, the DSPIC33EP128MU206-E/PT closes high-speed control loops using its 70 MIPS core, high-resolution PWM capability, and fast 12-bit ADC triggered directly from the PWM module. The CTMU (Charge Time Measurement Unit) supports precise time-interval and capacitance measurements useful in resonant converter diagnostics and protection schemes. The -E extended temperature rating of -40C to +125C suits power electronics enclosures where ambient heat is significant. Firmware typically implements voltage/current control loops at tens to hundreds of kHz update rates, with the DSP engine handling proportional-integral and compensator calculations deterministically. Peripheral Pin Select allows flexible assignment of PWM outputs and feedback inputs, simplifying power-stage layout trade-offs.
Recommended
Embedded Audio and DSP Signal Processing
The 16-bit DSP engine with X and Y data memory buses, modulo and bit-reversed addressing makes the DSPIC33EP128MU206-E/PT effective for real-time filtering, spectral analysis, and light audio processing at 70 MIPS. FIR/IIR filters, Goertzel tone detection, and FFT-based analysis execute efficiently using hardware multiply-accumulate. The 128 KB flash holds lookup tables, coefficient sets, and communication stacks simultaneously, while 16 KB RAM supports double-buffered sample streams. USB OTG enables direct digital-audio transport to a host or feeding processed data to downstream devices via UART, SPI, or I2C through Peripheral Pin Select. For products needing fingerprint-level analog integration, the on-chip op-amps can implement anti-aliasing filters ahead of the 12-bit ADC.
Recommended
Touch Sensing and Human Interface
The CTMU (Charge Time Measurement Unit) in the DSPIC33EP128MU206-E/PT enables capacitive touch sensing by measuring charge time on user-attached pads, supporting self- and mutual-capacitance methods under Microchip's touch-sensing libraries. The 70 MIPS core runs touch acquisition and decoding alongside application logic and a USB interface for configuration or HID-class device communication - useful for touch panels with USB connectivity in industrial HMI and appliance controls. The -E temperature grade permits deployment in appliances and outdoor equipment subject to wide thermal swings. The 12-bit ADC handles non-touch analog inputs such as slider potentiometers or temperature compensation sensors, and the three op-amps can buffer wet-electrode or long-trace signals before conversion.
Recommended
Data Loggers and Portable Test Equipment
Handheld and portable test instruments benefit from the DSPIC33EP128MU206-E/PT combination of USB OTG (device or host roles for flash drives and PC links), 1 KB EEPROM for calibration constants, and a 12-bit ADC with on-chip op-amp front end. The low-power idle, doze, and sleep modes stretch battery life between acquisitions, while 70 MIPS throughput supports real-time DSP analysis such as RMS computation, peak detection, and frequency estimation. The 128 KB flash accommodates logging file systems and USB mass-storage stacks simultaneously. Extended -40C to +125C operation allows loggers mounted on machinery, vehicles, or outdoor assets without local heating. Peripheral Pin Select simplifies multi-revision hardware by remapping communication pins in software.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128MU206-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP256MU206-E/PT | DSPIC33EP64MU206-E/PT | DSPIC33EP128MC206-I/PT | DSPIC33EP128GM306-E/PT |
|---|---|---|---|---|---|
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 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 (dual partition) |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| USB OTG | Yes (full-speed) | Yes (full-speed) | Yes (full-speed) | No | No |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +125C |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
Key Differentiators
- Integrated USB 2.0 full-speed OTG (vs DSPIC33EP128MC206-I/PT)
- Extended temperature operation (vs DSPIC33EP128MC206-I/PT)
- Three on-chip operational amplifiers (vs DSPIC33EP64MU206-E/PT)
Design Notes
Provide one 100 nF ceramic decoupling capacitor at every VDD/VSS pin pair, placed within 2-3 mm of the pins, plus bulk 4.7-10 uF capacitance. Filter AVDD through an RC (e.g., 10 ohm + 1 uF) or ferrite bead from the digital 3.3 V rail to protect ADC accuracy from core switching noise. Route USB D+/D- as a 90-ohm differential pair of matched length with a solid ground reference under it. Keep MCLR, PGD, and PGC routed to a programming header for in-circuit debugging and ICSP production programming.
Peripheral Pin Select (PPS) must be explicitly configured in software before UART, SPI, I2C, or PWM outputs appear on routed pins - a locked (PPS-protected) write sequence is required to prevent accidental remapping. Analog pins default to analog mode at reset; forget to set TRIS/ANSEL registers and digital reads return 0. When using USB, VBUS must be sensed and the module configured per Microchip USB library requirements; an unpowered VBUS leaves the device enumerated but non-functional. Always check the latest device errata sheet before committing tape-out.
Estimated: at 70 MIPS with USB active, typical current draw is on the order of tens of milliamps (e.g., ~40-60 mA at 3.3 V), giving roughly 0.15-0.2 W of dissipation. With the TQFP-64 theta_JA on a standard 4-layer board (approximately 40-50 C/W depending on copper area), junction rise above ambient is typically under 10 C - well within the -40C to +125C rating. These figures are estimates; consult the family datasheet electrical characteristics tables for exact IDD values under your operating frequency and voltage.
Compliance Information
Compliance status not stated in the provided web data. Verify RoHS/REACH status on the official Microchip product page or distributor compliance documents before production use.
