DSPIC33EP128MU206T-I/PT - 16-bit DSC 128KB Flash USB | Microchip
MPN: DSPIC33EP128MU206T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.55 | $65.50 |
| 100 | $5.9 | $590.00 |
| 500 | $5.35 | $2,675.00 |
| 1,000 | $4.85 | $4,850.00 |
DSPIC33EP128MU206T-I/PT Overview
A Digital Signal Controller combines the computational throughput of a digital signal processor with the peripheral integration, interrupt architecture, and ease of use of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC sits above general-purpose MCUs in math capability and below standalone DSPs in system complexity, making it the preferred choice when control loops and signal processing must run on a single chip.
Key features include the 16-bit dsPIC33EP core with DSP engine (single-cycle MAC, 40-bit accumulator), 70 MIPS execution at 3.3V, 128 KB of self-programmable Flash with ECC, and a USB 2.0 full-speed device/peripheral module with integrated transceiver - eliminating the need for an external USB PHY. The MU (USB) subfamily is the branch of the dsPIC33EP line dedicated to USB-connected control applications.
Technical depth: the device integrates a 10-bit, 1.1 Msps ADC and a 12-bit ADC, multiple UART, SPI, and I2C peripherals, input capture/output compare channels, quadrature encoder interfaces for motor feedback, and comparators. Dual partition Flash supports live firmware updates over USB (bootloader-friendly design).
Typical applications include USB-connected industrial sensors and instruments, power-supply and battery-charger digital control, brushless DC and PMSM motor control with USB commissioning, and audio/DSP-adjacent control nodes where a full-speed USB port plus fast control loops are required on one die.
Design consideration: the dsPIC33EP family requires a 3.0V-3.6V supply; ensure USB VBUS is regulated down and plan the clock tree (8 MHz crystal plus PLL) per the Microchip oscillator guidelines for reliable 70 MIPS operation.
This page synthesizes distributor sourcing data, drop-in alternative MPNs within the dsPIC33EP family, and practical design notes not consolidated on the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP128MU206T-I/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 DSPIC33EP128MU206T-I/PT (same form factor and footprint) — differing in Package, ADC Resolution, Communication Interfaces, Core, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128MU206-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.91 / Unit
View Datasheet →DSPIC33EP256MU206-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MU204T-I/PT
✅ Drop-In✓ In Stock
$3.32 / Unit
View Datasheet →DSPIC33EP64MU206T-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MC206-I/PT
✅ Drop-In✓ In Stock
$3.95 / Unit
View Datasheet →DSPIC33EP128MU206T-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33EP 16-bit DSC |
| CPU Speed | 70 MIPS |
| Program Memory (Flash) | 128 KB |
| RAM | 16 KB |
| Supply Voltage | 3.0 V to 3.6 V |
| USB | USB 2.0 full-speed device, integrated transceiver |
| ADC Resolution | 10-bit and 12-bit |
| ADC Speed (10-bit) | 1.1 Msps |
| Communication Interfaces | UART, SPI, I2C, ECAN |
| Timers | Multiple 16-bit timers, input capture, output compare |
| Motor Control Peripherals | PWM with dead time, quadrature encoder interface |
| Operating Temperature | -40C to +85C (I grade) |
| Package | TQFP-64 (PT), 10x10 mm |
| Mounting Type | Surface Mount |
| Standard Package Quantity | 1200 (tape and reel) |
| RoHS Status | Compliant |
DSPIC33EP128MU206T-I/PT 1200 (tape and reel) Pin Configuration Guide
Pin configuration for DSPIC33EP128MU206T-I/PT (1200 (tape and reel) 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 DSPIC33EP128MU206T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128MU206T-I/PT is suitable for 6 applications: USB-Connected Industrial Instruments, Digital Power Supplies and Battery Chargers, Brushless DC and PMSM Motor Control, USB Peripheral Accessories and HID Devices, Audio Control and Signal Conditioning Nodes, Embedded Networking and Gateway Nodes.
USB-Connected Industrial Instruments
The DSPIC33EP128MU206T-I/PT fits USB-connected industrial instruments because it pairs a 70 MIPS 16-bit DSC core with a USB 2.0 full-speed device module whose transceiver is integrated on-chip, removing external PHY cost and board area. In a data logger or bench instrument, the 12-bit ADC digitizes sensor channels while the DSP engine applies filtering before results stream over USB. The 128 KB Flash accommodates the USB stack, command parser, and calibration routines within one device, and the 16 KB SRAM buffers transfer payloads. Live self-programming of Flash enables USB bootloader field updates, and the -40C to +85C grade covers industrial ambient conditions.
Recommended
Digital Power Supplies and Battery Chargers
Digital power conversion is a natural fit for the DSPIC33EP128MU206T-I/PT because the dsPIC33EP core executes proportional-integral control loops at 70 MIPS with single-cycle MAC operations, while high-resolution PWM outputs drive power stages with hardware dead-time insertion. The 1.1 Msps, 10-bit ADC can sample output voltage and inductor current synchronized to the PWM period, closing current-mode loops at hundreds of kilohertz. The USB module adds a commissioning interface for charging profiles and telemetry on smart chargers. Compared to analog controllers, firmware control laws adapt to lithium, lead-acid, or NiMH chemistries without hardware change, cutting BOM variety across product lines.
Recommended
Brushless DC and PMSM Motor Control
The DSPIC33EP128MU206T-I/PT targets BLDC and PMSM drives through its motor-control PWM with dead-time insertion, quadrature encoder interface, and ADC triggering synchronized to the PWM center for low-noise current sampling. Field-oriented control at 70 MIPS benefits from the DSP engine's single-cycle multiply-accumulate, keeping FOC loop execution well within budget while the USB port provides tuning and firmware update access from a host PC. The 12-bit ADC resolves phase currents for torque-accurate control. The 64-pin TQFP exposes enough PWM, encoder, and communication pins to serve complete single-chip drives, and the industrial temperature grade supports factory environments.
Recommended
USB Peripheral Accessories and HID Devices
For USB HID-class accessories - custom input panels, lab pedals, interface dongles - the DSPIC33EP128MU206T-I/PT integrates the full-speed USB 2.0 transceiver, so the only external USB components are the connector and modest decoupling. The 70 MIPS core leaves ample headroom for debouncing, scanning matrices, and host protocol handling simultaneously, while the 128 KB Flash stores HID descriptors plus application logic with room to spare. The 3.0 V to 3.6 V single-supply operation is conveniently powered from the USB VBUS through a small 3.3 V LDO. The TQFP-64 package offers GPIO density for LED indicators, quadrature knobs, and analog keys via the integrated ADC.
Recommended
Audio Control and Signal Conditioning Nodes
Audio-adjacent control systems - USB audio accessory controllers, digital crossovers, DSP front-end managers - benefit from the DSPIC33EP128MU206T-I/PT's combination of DSP throughput and a USB device port. The DSP engine performs FIR/IIR filtering on sampled audio or control signals at 70 MIPS, while the 12-bit ADC captures potentiometers and sensors for user interfaces. USB enables configuration and firmware updates, and the 16 KB SRAM buffers audio streams or coefficient tables. Although dedicated audio codecs require external parts, the MCU handles all supervisory, protocol, and filtering tasks in one 3.3 V device, simplifying mixed-signal board design.
Recommended
Embedded Networking and Gateway Nodes
The DSPIC33EP128MU206T-I/PT serves as an embedded gateway node where its ECAN controller bridges industrial CAN buses to a USB or UART uplink. The ECAN peripheral implements CAN 2.0B message handling in hardware, offloading the 70 MIPS core for protocol translation, while multiple UARTs and SPI ports connect field devices simultaneously. The 128 KB Flash hosts dual firmware images for safe field updates over the network link, and the -40C to +85C range suits outdoor cabinets and factory floors. The quadrature encoder inputs double as pulse-capture channels for flow or energy metering peripherals, consolidating sensing and bridging in one TQFP-64 chip.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128MU206T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128MU206-I/PT | DSPIC33EP256MU206-I/PT | DSPIC33EP128MU204T-I/PT | DSPIC33EP128MC206-I/PT |
|---|---|---|---|---|---|
| Package | TQFP-64 (PT) | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-64 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 128 KB | 128 KB | 256 KB | 128 KB | 128 KB |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| USB 2.0 Full-Speed | Yes (integrated transceiver) | Yes | Yes | Yes | No (MC motor-control variant) |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Packing | Tape & Reel (T suffix) | Tray | Tray | Tape & Reel (T suffix) | Tray |
Key Differentiators
- Integrated USB 2.0 full-speed transceiver (vs DSPIC33EP128MC206-I/PT)
- Doubled Flash headroom in the same footprint (vs DSPIC33EP256MU206-I/PT)
- Tape-and-reel packing for automated assembly (vs DSPIC33EP128MU206-I/PT)
Design Notes
Supply the DSPIC33EP128MU206T-I/PT from a clean 3.3 V rail within its 3.0 V to 3.6 V range. Decouple every VDD pin with a 0.1 uF ceramic placed within 3-5 mm of the pin, and add bulk 10 uF near the device. For USB applications, derive 3.3 V from VBUS (5 V) with an LDO sized for the controller plus USB transceiver load; ferrite-bead filtering of the analog supply improves 12-bit ADC accuracy. Per Microchip's dsPIC33EP power guidelines, avoid shared rails with noisy motor-drive power stages without local regulation.
On the 64-pin TQFP footprint, route the USB D+/D- pair as a 90-ohm differential with matched lengths and no stubs, referencing a continuous ground plane. Keep the 8 MHz crystal loop compact with ground guarding, and route ADC inputs away from PWM and USB traces. Place VDD/VSS decoupling before general routing per Microchip layout application guidance. The exposed corner pin-1 marker on the PT package must align with the PCB silkscreen to avoid 90-degree rotation errors during assembly.
Two frequent mistakes: first, assuming the MC subfamily (e.g., DSPIC33EP128MC206-I/PT) offers USB - it does not; only MU parts carry the USB module. Second, exceeding 3.6 V on any VDD pin during USB hot-plug events; clamp the VBUS-derived rail with a 3.6 V TVS. Also configure configuration words (oscillator PLL, watchdog, code protection) correctly at programming time - incorrect PLL settings can leave the chip at a nonfunctional clock. Always verify the clock configuration with an internal FRC fallback before committing production masks.
Compliance Information
RoHS compliance per Microchip standard product status for the I/PT suffix; not an AEC-Q100 automotive-qualified variant. REACH and halogen status should be confirmed on the official Microchip compliance documentation.
