DSPIC33FJ128GP204-E/ML - 16-bit DSC 128KB 40MIPS | Microchip
MPN: DSPIC33FJ128GP204-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.16 | $4.16 |
| 10 | $3.85 | $38.50 |
| 100 | $3.48 | $348.00 |
| 500 | $3.1 | $1,550.00 |
| 1,000 | $2.76 | $2,760.00 |
DSPIC33FJ128GP204-E/ML Overview
A digital signal controller combines the compute power of a DSP with the peripheral integration and ease of use of a microcontroller. In the semiconductor hierarchy, a DSC sits between a general-purpose MCU (e.g., PIC24) and a dedicated DSP: it executes single-cycle MAC and DSP instructions for signal processing while retaining interrupt-driven control flow, making it a power management IC-adjacent building block for embedded control systems.
Key features include 40 MIPS operation at 3.3V, 128 KB self-programmable Flash with ECC-free but wear-rated endurance, a Direct Memory Access (DMA) controller that offloads data movement from the CPU, multiple UART/SPI/I2C serial ports, and an audio-grade set of peripherals suited for the GP (general purpose) variant of the dsPIC33FJ family. The -E/ML suffix denotes the extended (-40C to +125C) temperature grade in the 44-QFN exposed-pad package, enabling reliable operation in harsh industrial environments.
Architecturally, the dsPIC33F core uses a modified Harvard pipeline with 16-bit wide instructions and a DSP engine supporting single-cycle multiply-accumulate, dual operands, and modulo/bit-reversed addressing for FFT and filter kernels. The DMA channels service ADC results, UART, and SPI traffic without CPU intervention, which is decisive for deterministic sampling loops in motor and power control.
Typical applications include industrial automation and sensing, power supply and inverter control, and digital audio processing, where 40 MIPS plus DMA sustains fast control loops and signal pipelines. It also suits portable instrumentation requiring compact 8x8 mm footprints.
Design consideration: all VDD/VSS pairs must be bypassed with 100 nF ceramic capacitors, and the exposed thermal pad should be soldered to a ground plane for both thermal and signal-integrity performance; ICSP programming requires using PGECx/PGEDx pairs consistently.
This page synthesizes distributor pricing, verified drop-in same-family alternatives, and practical design notes not found together on the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ128GP204-E/ML — 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 DSPIC33FJ128GP204-E/ML (same form factor and footprint) — differing in DMA Channels, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ128GP204-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64GP204-E/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.95 / Unit
View Datasheet →DSPIC33FJ128MC204-E/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ128GP204-E/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC |
| Max CPU Speed | 40 MIPS |
| Program Flash Memory | 128 KB (128K x 8) |
| DMA Channels | Yes (integrated DMA controller) |
| Operating Temperature | -40C to +125C (extended grade) |
| Package | 44-QFN (8x8 mm), exposed pad (ML) |
| Mounting Type | Surface Mount |
| Peripheral Set | General Purpose (GP) variant |
| ICSP Programming | Yes (multiple PGECx/PGEDx pairs) |
| Serial Interfaces | UART, SPI, I2C |
| DSP Engine | Single-cycle MAC, DSP instructions |
| Product Status | In Production (per Microchip) |
DSPIC33FJ128GP204-E/ML 44-qfn (8x8 mm), exposed pad (ml) Pin Configuration Guide
Pin configuration for DSPIC33FJ128GP204-E/ML (44-qfn (8x8 mm), exposed pad (ml) 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 DSPIC33FJ128GP204-E/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ128GP204-E/ML is suitable for 6 applications: Industrial Automation and Control, Digital Power Supply and Inverter Control, Digital Audio Processing, Precision Sensing and Measurement, Portable and Battery-Powered Instruments, Embedded Networked Nodes and Gateways.
Industrial Automation and Control
The DSPIC33FJ128GP204-E/ML fits industrial control nodes that need deterministic processing and multiple serial links. Its 40 MIPS dsPIC33F core executes PID and filter loops with single-cycle MAC instructions, while the DMA controller services the ADC and UART without CPU overhead, keeping control-loop jitter low. The 128 KB Flash accommodates protocol stacks (Modbus, CAN-adjacent gateways) plus a bootloader with headroom. The extended -40C to +125C operating range of the -E grade tolerates hot cabinets and cold field installations where an industrial-grade -I part would exceed limits. Housed in a compact 44-QFN 8x8 mm package, it also supports space-constrained I/O modules.
Recommended
Digital Power Supply and Inverter Control
Digital power converters need fast, jitter-free sampling and control: the DSPIC33FJ128GP204's 40 MIPS core combined with its DMA-driven ADC path sustains fixed-frequency current-loop control in AC-DC and DC-AC stages. The GP peripheral set's PWM-capable outputs and high-rate timers allow phase-shifted or interleaved topologies, and 128 KB Flash leaves room for nonlinear compensation tables and diagnostics logging. Using the extended-temperature -E/ML variant is valuable inside sealed power supplies where ambient temperatures near the controller routinely exceed 85C. Designers should budget the CPU load so that ISR-based loop execution plus DMA service stays within the 25 ns instruction period.
Recommended
Digital Audio Processing
The GP (general-purpose) variant of the dsPIC33FJ128GP204 family is audio-oriented: its DSP engine performs single-cycle multiply-accumulate for filters, equalization, and sample-rate conversion, and the DMA controller streams audio data between peripherals and RAM without CPU stalls. At 40 MIPS, the device handles multiple biquad IIR filter channels or a modest FFT pipeline at standard 44.1/48 kHz sample rates. The 44-QFN package keeps the analog and digital sections compact for portable or embedded audio products, and the extended temperature rating suits automotive-adjacent or outdoor amplifiers. I2C and SPI ports interface directly to audio codecs and EEPROMs for configuration storage.
Recommended
Precision Sensing and Measurement
Measurement instruments benefit from the DSPIC33FJ128GP204-E/ML's combination of fast deterministic sampling and on-chip DSP math. Sensor signals digitized by the ADC can be corrected with calibration polynomials and FIR/IIR filters executed in the DSP engine, with DMA moving conversion results so the CPU is free for protocol handling. The 128 KB Flash stores multi-point calibration tables, and the extended -40C to +125C grade permits deployment in outdoor meters and engine-bay sensors where -I grade parts would drift out of spec. The 44-pin QFN offers enough GPIO for mux control, front-end switching, and a local display or UART link.
Recommended
Portable and Battery-Powered Instruments
Handheld instruments require high compute per watt and a small footprint. The dsPIC33FJ128GP204 runs from a 3.3V supply with 16-bit core efficiency at 40 MIPS, and its low-power sleep/idle modes allow duty-cycled sampling strategies that stretch battery life. The 8x8 mm 44-QFN package with exposed pad minimizes board area while providing thermal relief, and the integrated DMA reduces active CPU time during data logging. 128 KB Flash supports feature-rich firmware with menus, logging, and communication, and the -E extended grade tolerates storage and operation in vehicles or cold-weather field use where standard commercial parts would fail.
Recommended
Embedded Networked Nodes and Gateways
The DSPIC33FJ128GP204-E/ML serves as an intelligent node in distributed systems: multiple UART, SPI and I2C ports bridge field devices to a higher-level bus, and the DMA controller keeps serial throughput high without CPU saturation. 40 MIPS of headroom handles packet framing, CRC computation and local control decisions concurrently. The 128 KB Flash accommodates protocol stacks plus firmware-update bootloaders, while the extended temperature rating fits unconditioned enclosures in agriculture, energy, and building automation. Its ICSP programming interface with multiple PGECx/PGEDx pairs simplifies in-field reprogramming fixtures, and the QFN footprint suits dense multi-node PCBs.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ128GP204-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ128GP204-I/ML | DSPIC33FJ64GP204-E/ML | DSPIC33FJ128MC204-E/ML |
|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 128 KB | 128 KB | 64 KB | 128 KB |
| Max Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +125C |
| Peripheral Set | General Purpose (GP) | General Purpose (GP) | General Purpose (GP) | Motor Control (MC) |
| DMA | Yes | Yes | Yes | Yes |
Key Differentiators
- Extended temperature grade (vs DSPIC33FJ128GP204-I/ML)
- Double the program memory (vs DSPIC33FJ64GP204-E/ML)
- General-purpose serial peripheral richness (vs DSPIC33FJ128MC204-E/ML)
Design Notes
Solder the 44-QFN exposed pad to a solid ground plane with an array of thermal vias. All VDD/VSS pairs must each be bypassed with a 100 nF ceramic capacitor placed within 2 mm of the pins, plus bulk 4.7-10 uF per supply domain. Per the family datasheet programming notes, connect ALL VDD and VSS pins during ICSP programming, not just the pair nearest the PGEC/PGED pins being used.
The dsPIC33FJ128GP204 has multiple PGECx/PGEDx pairs. You may use any single pair for ICSP, but ICSPCLK and ICSPDAT must come from the SAME numbered pair (e.g., PGEC2 with PGED2) - mixing pairs from different pairs will fail programming. Reserve your chosen pair on the PCB with a 5-7 pin header (MCLR, VDD, GND, PGECx, PGEDx) for field updates.
Estimated: at +125C ambient (the -E grade limit) the junction margin is small, so keep total current per I/O within datasheet ratings and avoid routing high-drive loads under the die. For designs running continuously near +105C ambient or above, verify junction temperature with a thermal estimate: theta_JA for a 44-QFN 8x8 mm with good ground-plane copper is typically well under the worst-case still-air figure; confirm the exact value in the manufacturer datasheet before final derating.
Compliance Information
Compliance statements were not present verbatim in the retrieved distributor snippets; verify on the Microchip product page or request the distributor certificate of compliance.
