DSPIC33EP128MU204-H/PT - 16-bit DSC, 128KB Flash | Microchip
MPN: DSPIC33EP128MU204-H/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.12 | $6.12 |
| 10 | $5.55 | $55.50 |
| 100 | $4.95 | $495.00 |
| 500 | $4.55 | $2,275.00 |
| 1,000 | $4.15 | $4,150.00 |
DSPIC33EP128MU204-H/PT Overview
A digital signal controller is a hybrid device that merges the peripheral set and ease of use of a microcontroller with the computational throughput of a digital signal processor. Within the power management hierarchy of embedded systems, DSCs such as the dsPIC33E family sit between general-purpose MCUs and dedicated DSPs, making them the preferred choice when control loops, math-intensive filtering, and rich connectivity must coexist in a single chip.
Key features of the DSPIC33EP128MU204-H/PT include the dsPIC33E core with DSP instruction support (MAC, DSP multiply-accumulate, modulo and bit-reversed addressing), a 12-bit ADC for precise analog acquisition, a motor-control PWM module suited for inverter and power-conversion tasks, and a full-speed USB module for direct host connectivity. The -H temperature grade extends reliability into harsh thermal environments where standard industrial parts would fail.
The dsPIC33E architecture executes from zero-wait-state flash and provides interrupt latency and atomic bit manipulation well suited to real-time control. The integrated DSP engine enables FIR/IIR filtering, FFT-based analysis, and sensor-fusion arithmetic without external acceleration, while hardware peripheral libraries (such as Microchip Code Configurator and Harmony support) shorten development time.
Typical applications include digital power supplies, PFC and inverter control, brushless and PMSM motor drives, USB-connected sensors and instrumentation, and industrial gateways where CAN/UART/I2C links converge. The 44-pin TQFP footprint balances I/O count with compact board area.
A key design consideration: the -H grade permits up to +150C ambient, but flash program-voltage and AC timing derating at elevated temperature should be verified in the manufacturer datasheet before final timing budgets are fixed.
This page synthesizes distributor availability, family-level drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP128MU204-H/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 DSPIC33EP128MU204-H/PT (same form factor and footprint) — differing in Package, Connectivity, Maximum CPU Speed, Operating Temperature, Program Memory Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128MU204-E/PT
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →DSPIC33EP128MU204-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP256MU204-H/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MU204-H/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MC204-H/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.32 / Unit
View Datasheet →DSPIC33EP128MU204-H/PT Maximum Ratings & Electrical Characteristics
| Core Processor | dsPIC33E (16-bit DSC core) |
| Core Size | 16-bit |
| Program Memory Size | 128 KB (Flash) |
| RAM Size | 16 KB |
| Package | TQFP-44 (PT) |
| Operating Temperature | -40C to +150C (H grade) |
| ADC Resolution | 12-bit |
| Connectivity | USB, UART, SPI, I2C |
| Mounting Type | Surface Mount |
| Base Product Number | DSPIC33EP128MU204 |
| Packaging Type | Tray |
| Product Family | dsPIC33E |
| Peripherals | Motor control PWM, USB module |
DSPIC33EP128MU204-H/PT tqfp-44 (pt) Pin Configuration Guide
Pin configuration for DSPIC33EP128MU204-H/PT (tqfp-44 (pt) 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 DSPIC33EP128MU204-H/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128MU204-H/PT is suitable for 6 applications: Digital Power Supplies and PFC, BLDC and PMSM Motor Drives, USB-Connected Industrial Instrumentation, Automotive-Adjacent Sensor Nodes, Industrial Gateways and Field Communications, Embedded Audio and Signal Processing Front Ends.
Digital Power Supplies and PFC
The DSPIC33EP128MU204-H/PT fits digital power conversion because its motor-control PWM module supports high-resolution complementary outputs with hardware dead-time insertion, while the 12-bit ADC with simultaneous sampling tracks input and output rails for voltage-mode or current-mode control loops. In a PFC or LLC stage, the DSP engine executes the compensation filter arithmetic in fixed point without floating-point overhead, and the 128 KB flash holds multiple protection and communication routines. The -H grade to +150C is a key benefit: placing the controller near hot power semiconductors removes the need for remote placement or active cooling, simplifying layout of the control ground plane.
Recommended
BLDC and PMSM Motor Drives
For sensorless field-oriented control, the dsPIC33E core's DSP multiply-accumulate instructions compute Park/Clarke transforms and PI loops each PWM cycle, while the dedicated motor-control PWM generates six complementary outputs with dead time. The 12-bit ADC is triggered by the PWM for precise current sampling at the center of the PWM period, minimizing switching-noise error. The DSPIC33EP128MU204-H/PT's +150C rating lets it mount close to the inverter heat sink, shortening gate-drive traces and reducing EMI. Microchip's motor-control libraries and reference designs provide ready-made FOC firmware for this exact peripheral set, cutting software validation time significantly in production projects.
Recommended
USB-Connected Industrial Instrumentation
The integrated full-speed USB 2.0 module makes the DSPIC33EP128MU204-H/PT well suited for bench instruments, data loggers, and sensors that plug directly into a PC. Acquired signals pass through the 12-bit ADC, are filtered with the DSP engine, and stream over USB without an external bridge chip, saving BOM cost and board area. The 128 KB flash accommodates USB stacks plus application firmware, and 16 KB RAM buffers acquisition records. In factory environments where enclosures run hot, the -H temperature grade of -40C to +150C maintains operation where standard -I grade controllers would exceed their rated limits, improving long-term system reliability.
Recommended
Automotive-Adjacent Sensor Nodes
Although not AEC-Q100 qualified, the -H/PT's -40C to +150C range overlaps many under-hood-adjacent zones such as pump controllers, fan modules, and body-electronics boxes exposed to radiant heat. The dsPIC33E core processes sensor linearization (thermistor NTC curves, pressure ratiometric scaling) using the DSP engine, while UART/SPI/I2C links report to a vehicle gateway. The 12-bit ADC reads multiple analog channels for diagnostics, and the 128 KB flash stores calibration tables per unit. Designers should still validate qualification requirements separately, since the standard-temperature part carries no automotive qualification claim from Microchip for this grade.
Recommended
Industrial Gateways and Field Communications
In a gateway node bridging RS-485/UART field devices to a supervisory controller, the DSPIC33EP128MU204-H/PT provides multiple UARTs, SPI, and I2C interfaces alongside the 16-bit DSP core for protocol CRC and framing in hardware-assisted software. The 128 KB flash holds protocol stacks plus OTA-style field-update code, and the 16 KB RAM buffers message queues. The -H temperature grade suits panels mounted near VFDs or in rooftop enclosures where ambient exceeds 85C. When CAN is required instead of USB, the pin-compatible DSPIC33EP128MC204-H/PT keeps the PCB unchanged while swapping the interface, simplifying dual-product platform strategies.
Recommended
Embedded Audio and Signal Processing Front Ends
The dsPIC33E DSP engine handles FFT, FIR, and adaptive-filter workloads for audio analysis, acoustic diagnostics, and vibration monitoring. The 12-bit ADC digitizes microphone or accelerometer inputs at rates sufficient for condition-monitoring band analysis, and results can stream over USB to a host application. The 128 KB flash stores coefficient tables and multiple analysis profiles, while the 16 KB RAM supports double-buffered block processing to avoid glitches. In hot machinery rooms where the monitor rides on the equipment itself, the DSPIC33EP128MU204-H/PT's 150C rating removes the thermal derating constraints that standard industrial MCUs would impose on the mechanical placement.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128MU204-H/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128MU204-E/PT | DSPIC33EP128MU204-I/PT | DSPIC33EP256MU204-H/PT | DSPIC33EP64MU204-H/PT | DSPIC33EP128MC204-H/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-44 (PT) | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 128 KB | 128 KB | 128 KB | 256 KB | 64 KB | 128 KB |
| Operating Temperature | -40C to +150C | -40C to +125C | -40C to +85C | -40C to +150C | -40C to +150C | -40C to +150C |
| USB Module | Yes (full-speed) | Yes (full-speed) | Yes (full-speed) | Yes (full-speed) | Yes (full-speed) | No (dual CAN instead) |
| ADC | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
| Motor Control PWM | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- +150C extended temperature grade (vs DSPIC33EP128MU204-I/PT)
- Integrated full-speed USB (vs DSPIC33EP128MC204-H/PT)
- Balanced 128 KB flash in 44 pins (vs DSPIC33EP256MU204-H/PT)
Design Notes
The -H grade is rated to +150C ambient, but verify that your junction temperature stays within limits by estimating: Estimated: TJ = TA + P * theta_JA. With a typical dsPIC33EP active current near 50-70 mA at 3.3 V (about 0.2 W) and TQFP-44 theta_JA of roughly 50 C/W on a standard 4-layer board, junction rise is about 10 C above ambient - comfortable margin. Always confirm theta_JA and the exact current figures in the manufacturer datasheet for your supply voltage and clock configuration.
Place a 100 nF ceramic decoupling capacitor at each VDD pin pair plus one bulk 10 uF capacitor near the TQFP-44 package. Keep VDD and AVDD separated with a ferrite or RC filter so digital switching noise from the core clock does not degrade the 12-bit ADC reference path. Route USB D+/D- as a matched 90-ohm differential pair with length matching within a few millimeters, and place the series termination resistors close to the MCU pins.
Do not assume all package variants share the same pinout: the MU204 family exists in 44-pin TQFP/ML and smaller options, and peripheral multiplexing differs by package. Verify pin assignments in the Pin Diagrams section of the dsPIC33EP128MU204 datasheet before locking the PCB. Also, since the -H grade is a temperature-special variant, verify current stock and lead time before a tape-out - Microchip's support guidance recommends pre-approving a same-family alternate (e.g., -E or -I grade) in the BOM to hedge allocation risk.
Compliance Information
RoHS/lead-free status typical for Microchip TQFP production parts; verify on the Microchip product page environmental data sheet for the -H/PT suffix.
