DSPIC33FJ64MC804-H/ML - 16-bit DSC, 64KB Flash, 40 MIPS | Microchip
MPN: DSPIC33FJ64MC804-H/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.28 | $6.28 |
| 10 | $5.71 | $57.10 |
| 25 | $5.48 | $137.00 |
| 100 | $5.06 | $506.00 |
| 1,000 | $4.55 | $4,550.00 |
DSPIC33FJ64MC804-H/ML Overview
A digital signal controller combines the compute architecture of a digital signal processor with the peripheral set and ease of use of a microcontroller. Within the power-management hierarchy, a DSC is a class of embedded processor that sits between a general-purpose MCU and a dedicated DSP: it executes high-speed, repetitive mathematical loops (PID control, transforms, filtering) while simultaneously managing real-time I/O such as PWM generation and ADC sampling. The dsPIC33F family is Microchip's 16-bit DSC line, pin-compatible with the PIC24HJ MCU family and highly code-compatible with the older dsPIC30F family for seamless migration.
Key features of the DSPIC33FJ64MC804-H/ML include the dsPIC33F core operating at up to 40 MIPS, motor-control PWM peripherals purpose-built for precision motor control, an advanced analog front end with high-speed 12-bit ADC, and a wide 3.0V to 3.6V supply range (3.3V nominal). The -H temperature grade supports -40C to +125C operation, making it suitable for demanding industrial environments.
Architecturally, the device pairs the 16-bit modified Harvard core with DSP engine instructions (MAC, DSP multiply) and zero-overhead loops, so control-law computations execute deterministically without interrupt jitter. Flash program memory is 64KB and SRAM is sized per the family datasheet (family devices support up to 16K SRAM across the family). Multiple PGECx/PGEDx pin pairs support In-Circuit Serial Programming (ICSP) with any pair usable, provided the clock and data pins are used as a matched pair.
Typical applications include brushless DC and PMSM motor drives, switched-mode power supplies, digital lighting ballasts, and embedded industrial control where sensor-loop and PWM timing must be tightly coupled.
Design consideration: use only one matched PGECx/PGEDx pair for ICSP, and decouple the 3.3V rail with low-ESR ceramics placed close to the QFN exposed pad, which must be soldered to a grounded thermal pad for both electrical and thermal integrity.
This page synthesizes distributor pricing data, verified drop-in alternatives, datasheet-sourced specifications, and practical design notes not consolidated in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33FJ64MC804-H/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 DSPIC33FJ64MC804-H/ML (same form factor and footprint) — differing in Operating Temperature, Core Architecture, SRAM, Supply Voltage Range, Flash Program Memory.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64MC804-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.05 / Unit
View Datasheet →DSPIC33FJ16MC304-H/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32MC304-H/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC104-H/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32MC204-I/ML
✅ Drop-In✓ In Stock
$4.37 / Unit
View Datasheet →DSPIC33EP256MC204-I/ML
✅ Drop-In✓ In Stock
$3.4 / Unit
View Datasheet →DSPIC33FJ64MC804-H/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC |
| Maximum Clock Speed | 40 MHz |
| Performance | 20 MIPS (DigiKey listing) / up to 40 MIPS family core speed |
| Program Memory Size | 64KB (64K x 8) Flash |
| Program Memory Type | Flash |
| Supply Voltage Range | 3 V to 3.6 V (3.3 V nominal) |
| Number of I/O | 69 (device I/O ports per datasheet index) |
| Package Type | 44-QFN (8x8 mm) exposed pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +125C (H grade) |
| Special Peripherals | Motor Control PWM, Advanced Analog |
| Programming Interface | ICSP via PGECx/PGEDx pin pairs |
| Family Compatibility | Pin compatible with PIC24HJ; high code compatibility with dsPIC30F |
| RoHS / Lead Free | Lead-free plastic package |
| Lifecycle Stage | ACTIVE |
| Qualification | Automotive, AEC-Q100 (per Hotenda listing) |
DSPIC33FJ64MC804-H/ML 44-qfn (8x8 mm) exposed pad Pin Configuration Guide
Pin configuration for DSPIC33FJ64MC804-H/ML (44-qfn (8x8 mm) exposed pad 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 DSPIC33FJ64MC804-H/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64MC804-H/ML is suitable for 6 applications: BLDC / PMSM Motor Control, Digital Power Supplies (SMPS), Industrial Automation and Control, Digital Lighting Ballasts and LED Drivers, Automotive and Transportation Subsystems, Embedded DSP Signal Processing.
BLDC / PMSM Motor Control
The dsPIC33FJ64MC804-H/ML was purpose-built for precision motor control, with dedicated motor-control PWM modules providing complementary outputs and hardware dead-time insertion for three-phase inverters. Its 20 MIPS core runs field-oriented control (FOC) or trapezoidal commutation loops with deterministic timing, while the advanced analog ADC samples phase currents fast enough for cycle-by-cycle current limiting. The -40C to +125C H grade suits sealed motor-drive environments where ambient temperatures exceed standard industrial limits. Place the controller near the gate drivers with short PWM traces, and use the exposed pad grounded for noise immunity against switching transients.
Recommended
Digital Power Supplies (SMPS)
In digitally controlled switched-mode power supplies, the dsPIC33FJ64MC804-H/ML replaces analog control loops with firmware-based voltage-mode or current-mode control. The high-speed ADC samples output voltage and inductor current each switching cycle, and the motor-control PWM peripherals generate phase-shifted or complementary drive signals with sub-nanosecond-scale resolution via the family PWM architecture. The 20 MIPS core closes the loop within a single switching period at typical 100-500 kHz frequencies. The H temperature grade tolerates power-supply internal ambient temperatures up to 125C, making it suitable for fanless industrial PSU designs.
Recommended
Industrial Automation and Control
For factory automation nodes, the dsPIC33FJ64MC804-H/ML combines a 20 MIPS 16-bit core with 69 I/O and rich serial connectivity, handling sensor acquisition, PID regulation, and communication simultaneously. The extended -40C to +125C operating range covers control cabinets near heat sources, and the single 3.3V rail simplifies power-tree design. The Flash program memory supports field firmware updates over the production line via ICSP with any matched PGECx/PGEDx pair, reducing rework cost. Its pin compatibility across the dsPIC33F family lets one PCB layout serve multiple BOM cost/performance points.
Recommended
Digital Lighting Ballasts and LED Drivers
HID ballasts and high-power LED drivers benefit from the dsPIC33FJ64MC804-H/ML's combination of fast ADC sampling and flexible PWM generation for constant-current regulation, ignition sequencing, and lamp-fault protection. The 20 MIPS core executes digital control laws with low jitter, improving luminous stability and efficiency compared with analog-only solutions, while firmware enables PFC coordination on the same chip, reducing BOM count. The -40C to +125C range handles luminaire headroom temperatures, and the 44-QFN package with exposed pad gives good thermal path when soldered to a grounded copper pour.
Recommended
Automotive and Transportation Subsystems
Distributor listings qualify the dsPIC33FJ64MC804 family as Automotive, AEC-Q100, supporting use in automotive-adjacent subsystems such as auxiliary motor drives, pump controls, and actuator modules. The H grade -40C to +125C matches under-hood-adjacent environmental requirements, and the 3.0V to 3.6V supply integrates cleanly with automotive 3.3V rails generated from 12V battery domains. The deterministic DSP core handles sensor-fusion and control loops without the certification complexity of software-scheduled timing. Always verify current Microchip qualification documentation for the specific PPAP/lot before production release.
Recommended
Embedded DSP Signal Processing
The dsPIC33FJ64MC804-H/ML serves as a compact DSP engine for embedded filtering, transforms, and sensor-fusion tasks that do not justify a full floating-point DSP. The core's DSP engine executes MAC-class instructions with zero-overhead loops, sustaining 20 MIPS of deterministic computation for audio pre-processing, vibration monitoring, and power-metering math. With 64KB Flash on-chip, complete applications fit without external memory, and the advanced analog block feeds the core directly. The 44-QFN (8x8 mm) package suits dense boards, and ICSP via any matched PGECx/PGEDx pair enables in-field reprogramming.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC804-H/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64MC804-I/ML | DSPIC33FJ16MC304-H/ML | DSPIC33FJ32MC304-H/ML | DSPIC33FJ32MC204-I/ML | DSPIC33EP256MC204-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) exposed pad | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 64KB (64K x 8) | 64KB | 16KB | 32KB | 32KB | 256KB |
| Core Performance | 16-bit, 20 MIPS (40 MHz class) | 16-bit, 20 MIPS | 16-bit, comparable | 16-bit, comparable | 16-bit, comparable | 16-bit dsPIC33EP core, comparable/higher |
| Supply Voltage | 3.0 V to 3.6 V (3.3 V nominal) | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (H grade) | -40C to +85C (I grade) | -40C to +125C (H grade) | -40C to +125C (H grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| Motor-Control PWM | Yes (MC variant) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Extended -40C to +125C temperature grade in standard package (vs DSPIC33FJ64MC804-I/ML)
- Largest Flash in the 44-QFN MC8xx drop-in group (vs DSPIC33FJ32MC304-H/ML)
- Trade-off: less memory than the newer dsPIC33EP generation (vs DSPIC33EP256MC204-I/ML)
Design Notes
The 44-QFN (8x8 mm) package has an exposed pad on the underside that must be soldered to a grounded thermal pad on the PCB. Design the land pattern per the Microchip datasheet with a solder-mask-defined array of vias (typically 4-6) in the pad to tie into internal ground planes for both heat spreading and return-current integrity. Confirm exact recommended land-pattern dimensions and via count in the manufacturer datasheet rather than copying from other QFN-44 devices, since Microchip specifies its own pattern.
The dsPIC33FJ64MC804 has multiple PGECx/PGEDx programming pin pairs, and any pair may be used for ICSP - but the clock and data pins must come from the same matched pair. For example, if PGEC2 carries ICSPCLK, then PGED2 must carry ICSPDAT (per Microchip development documentation). Mixing pairs from different pairs is a common bring-up failure. Route your programming header to one chosen pair on silkscreen, and avoid loading the chosen PGEDx pin with a strong pull-down that conflicts with the programmer.
The device requires a 3.0V to 3.6V supply with 3.3V nominal. Inputs are not 5V tolerant, so any 5V-domain signal (sensors, RS-232, legacy logic) needs level shifting. Provide 100nF ceramic decoupling at each supply pin plus bulk capacitance near the IC, and keep the analog supply feeding the ADC isolated from switching-noise sources such as motor gate drivers - route a quiet analog rail or use an RC/LC filter branch for VDD-AVDD connections. Estimated: a 100nF cap per pin pair with 10uF bulk is a conservative starting point.
Compliance Information
Hotenda distributor listing describes the family as Automotive, AEC-Q100, with a lead-free plastic QFN package. Reach, halogen-free, and conflict-minerals status not stated in provided data.
