DSPIC33FJ64MC804-E/PT - 16-bit DSC 64KB Flash 40MIPS | Microchip
MPN: DSPIC33FJ64MC804-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.82 | $6.82 |
| 10 | $6.14 | $61.40 |
| 100 | $5.46 | $546.00 |
| 500 | $4.92 | $2,460.00 |
| 1,000 | $4.44 | $4,440.00 |
DSPIC33FJ64MC804-E/PT Overview
A Digital Signal Controller is a hybrid device that merges the deterministic control structure of a microcontroller with the high-speed multiply-accumulate computation of a DSP. Within the power-management hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP: it belongs to the class of 16-bit embedded processors, which in turn belong to the broader family of microcontrollers and semiconductor integrated circuits. The dsPIC33F family is pin compatible with the PIC24HJ family, allowing designers to move between control- and DSP-optimized variants without changing the PCB.
Key features include 64 KB of self-programmable Flash, 8 KB of RAM, 8 DMA channels for peripheral data transfer without CPU intervention, dedicated motor control PWM peripherals, and advanced analog modules for sensor feedback loops. The device operates from a 3.0 V to 3.6 V single supply, with a maximum clock rate of 40 MHz (40 MIPS), matching the needs of closed-loop motor and power-conversion algorithms executed in microseconds.
Architecturally, the dsPIC33F core pairs a 16-bit RISC pipeline with DSP-engine instructions (MAC, DSP multiply, barrel shifter), enabling high-speed repetitive computations such as FOC (field-oriented control), PI loops, and digital filtering. Code protection features safeguard intellectual property in the Flash array.
Typical applications include brushless DC and PMSM motor drives, digital power supplies (LLC, totem-pole PFC), solar inverters, and industrial sensing and control nodes. The MC (Motor Control) peripheral set and DMA make it a strong fit where precise PWM generation and fast ADC sampling must run concurrently.
Design consideration: keep the supply strictly within 3.0 V to 3.6 V and decouple every VDD/VSS pair with 0.1 uF ceramics placed within 2 mm of the pins; the 44-TQFP thermal pad region benefits from solid ground planes for analog accuracy.
This page synthesizes verified distributor data, drop-in alternatives, and design guidance not found in the manufacturer datasheet, with pricing verified as of 2026-09-27.
Drop-in alternatives for DSPIC33FJ64MC804-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 DSPIC33FJ64MC804-E/PT (same form factor and footprint) — differing in Package, Operating Temperature, Peripherals, Pin Compatibility, Product Family.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64MC804-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC804-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC804-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC304-E/PT
✅ Drop-In✓ In Stock
$4.45 / Unit
View Datasheet →DSPIC33FJ16MC304-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.45 / Unit
View Datasheet →DSPIC33FJ64MC804-E/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33F 16-bit DSC |
| Max Clock Speed | 40 MHz (40 MIPS) |
| Program Memory | 64 KB Flash |
| SRAM | 8 KB |
| DMA Channels | 8 |
| Supply Voltage | 3 V to 3.6 V |
| Operating Temperature | -40C to +125C (extended, E suffix) |
| Package | 44-TQFP (10x10 mm), surface mount |
| Mounting Type | Surface Mount |
| Peripherals | Motor Control PWM, advanced analog |
| Pin Compatibility | Compatible with PIC24HJ family |
| Qualification | AEC-Q100 automotive qualified family |
| Lead Finish | Lead-free (per package type data) |
| Life Cycle Stage | Active |
| Packaging | Tray |
| ROM Type | Flash |
| Code Protection | Yes (Flash code protection feature) |
DSPIC33FJ64MC804-E/PT 44-tqfp (10x10 mm), surface mount Pin Configuration Guide
Pin configuration for DSPIC33FJ64MC804-E/PT (44-tqfp (10x10 mm), surface mount 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-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64MC804-E/PT is suitable for 6 applications: BLDC/PMSM Motor Drives, Digital Power Supplies (PFC / LLC), Solar Inverters and MPPT, Industrial Sensing and Control Nodes, Battery Chargers and BMS, Automotive Auxiliary Control Units.
BLDC/PMSM Motor Drives
The DSPIC33FJ64MC804-E/PT was purpose-built for precision motor control: its dedicated motor control PWM peripheral generates complementary or independent PWM outputs with dead-time insertion, while the advanced analog modules sample phase currents for field-oriented control. At 40 MIPS with hardware MAC instructions, the FOC inner current loop executes in tens of microseconds, well inside typical 10-20 kHz PWM periods. The 8 DMA channels stream ADC results into SRAM without CPU intervention, keeping loop timing deterministic. The extended -40C to +125C grade suits sealed industrial drives. Trade-off: at large PWM frequencies, ensure ISR headroom on the 8 KB SRAM.
Recommended
Digital Power Supplies (PFC / LLC)
In digital power conversion, the DSPIC33FJ64MC804-E/PT replaces analog control loops with firmware-based voltage- and current-mode control. The 40 MIPS core plus DSP engine computes PI compensators for LLC or totem-pole PFC stages, and the motor-control PWM module provides the phase-shifted or complementary PWM with nanosecond-resolution dead time that these topologies demand. The 8-channel DMA keeps ADC sampling synchronized to the PWM period, eliminating jitter-induced output ripple. The 3.0-3.6 V supply simplifies interfacing with feedback dividers and isolation amplifiers. Use the 64 KB Flash to hold multiple operating profiles and soft-start sequencing routines in one firmware image.
Recommended
Solar Inverters and MPPT
Grid-tied and off-grid solar micro-inverters benefit from the DSPIC33FJ64MC804-E/PT's combination of DSP throughput and control peripherals. Maximum power point tracking requires rapid multiplication of sampled voltage and current - exactly the MAC-intensive workload the DSP engine accelerates - while the PWM module drives the DC-DC boost and DC-AC stages. The 8 DMA channels move ADC samples into memory at fixed intervals tied to the switching period, and the 64 KB Flash accommodates MPPT algorithms plus grid-protection firmware. The extended temperature range handles rooftop enclosures; design the 3.3 V rail from the auxiliary flyback with adequate derating above 100C ambient.
Recommended
Industrial Sensing and Control Nodes
Factory automation nodes use the DSPIC33FJ64MC804-E/PT where signal processing meets real-time control: vibration monitoring, load-cell conditioning, and closed-loop actuators. The advanced analog front end plus DSP MAC instructions implement digital filtering (IIR/FIR) directly on sampled sensor data, while UART, SPI, and I2C interfaces link to higher-level PLCs or gateways. The 8 DMA channels offload communication buffers, and 64 KB Flash stores lookup tables for calibration. With -40C to +125C operation, the device survives panel-mounted enclosures near drives or heaters. Budget the 8 KB SRAM carefully when combining filtering buffers with a communication stack.
Recommended
Battery Chargers and BMS
Smart battery chargers need precisely shaped charge curves and safety cutoffs - a natural fit for the DSPIC33FJ64MC804-E/PT. The PWM module implements buck or phase-shifted charging power stages with programmable dead time, the ADC samples current, voltage, and temperature through the advanced analog blocks, and firmware enforces CC/CV profiles plus fault response in microseconds. The DSP engine accelerates coulomb counting and impedance estimation, and 64 KB Flash holds multiple chemistry profiles (Li-ion, lead-acid, NiMH). The extended temperature grade supports automotive-adjacent chargers; isolate the 3.0-3.6 V domain from battery potential with proper level shifting on all feedback lines.
Recommended
Automotive Auxiliary Control Units
For auxiliary automotive electronics - pump control, HVAC actuators, lighting ballasts - the DSPIC33FJ64MC804-E/PT offers the -40C to +125C extended grade required in under-hood and near-engine locations, and distributor data associates the dsPIC33FJ line with AEC-Q100 qualification. The motor-control PWM drives brushless pumps and blowers with sensorless FOC, the 8-channel DMA services ADC sampling of position and current sensors, and the DSP engine executes the control loops at 40 MIPS. Verify the exact AEC-Q100 status of the -E/PT ordering code with Microchip and secure PPAP documentation before release; for mainstream automotive BOMs, the family's automotive-suffix variants may be the compliant choice.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC804-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64MC804-I/PT | DSPIC33FJ32MC804-E/PT | DSPIC33FJ32MC304-E/PT | DSPIC33FJ16MC304-E/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 64 KB | 64 KB | 32 KB | 32 KB | 16 KB |
| Max Performance | 40 MHz (40 MIPS) | 40 MHz (40 MIPS) | 40 MHz (40 MIPS) | 40 MHz (40 MIPS) | 40 MHz (40 MIPS) |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) |
| Supply Voltage | 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 |
| Lifecycle Status | Active | Active | Active | Active | Active |
Key Differentiators
- Extended -40C to +125C temperature range at no layout cost (vs DSPIC33FJ64MC804-I/PT)
- Largest program memory in the pin-compatible family (vs DSPIC33FJ32MC804-E/PT)
- Full MC peripheral set with 8 DMA channels (vs DSPIC33FJ16MC304-E/PT)
Design Notes
Power the DSPIC33FJ64MC804-E/PT from a clean 3.3 V rail within the 3.0-3.6 V specification. Place one 0.1 uF X7R ceramic capacitor at every VDD/VSS pair, within 2 mm of the pins, plus a single 10 uF bulk capacitor near the device. In motor-drive boards, separate the digital 3.3 V domain from gate-driver supplies; switching transients coupled into VDD cause spurious resets. Add a 10 uF + 0.1 uF pair at the VCAP/core regulator pin per the Microchip family datasheet recommendation for stable internal core regulation.
The 44-TQFP (10x10 mm, 0.8 mm pitch) requires a fine-pitch layout: use 0.4 mm traces with solder mask-defined pads and ensure the paste aperture does not exceed 90% of pad area to prevent bridging. Route the ICSP/ICD programming pins (PGD/PGC) to a header before the board is panelized - retrofitting access on assembled boards is costly. Keep the analog inputs away from PWM traces; a ground pour between the ADC section and the power section measurably reduces noise in current-sense readings.
Common pitfalls: (1) Verify the temperature grade before substituting - the -I variant stops at +85C and will fail in +125C enclosures even though it is otherwise a perfect drop-in. (2) Confirm AEC-Q100 documentation for the exact -E/PT ordering code before automotive release. (3) Configuration-bit settings (watchdog, oscillator fail-safe, code protection) are stored in Flash and erased during reprogramming - always maintain a verified configuration source file in version control. (4) MCLR must not be left floating; use the internal pull-up or a 10 k-ohm resistor.
When the motor-control PWM drives long traces to gate drivers, add series termination (22-33 ohm) at the DSC output to damp ringing from trace inductance; overshoot on digital outputs beyond absolute maximum ratings is a frequent failure mode on 3.3 V DSCs sharing a harness with inductive loads. Keep the oscillator traces (external crystal, if used) short and guarded by ground. For ADC accuracy in FOC loops, sample current sensors synchronously with the PWM center using the DMA-triggered conversion feature rather than free-running sampling.
Compliance Information
Package type data describes lead-free plastic TQFP. Datasheets.com family listing references 2.5V/3V automotive AEC-Q100. REACH, halogen-free, and conflict-minerals declarations should be confirmed via the Microchip compliance portal for the specific date code.
