DSPIC33FJ64MC804T-I/PT - 16-bit 40 MIPS DSC 64KB Flash | Microchip
MPN: DSPIC33FJ64MC804T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.42 | $7.42 |
| 10 | $6.68 | $66.80 |
| 100 | $5.95 | $595.00 |
| 500 | $5.36 | $2,680.00 |
| 1,000 | $4.82 | $4,820.00 |
DSPIC33FJ64MC804T-I/PT Overview
A digital signal controller combines the computational throughput of a digital signal processor with the deterministic control and peripheral set of a microcontroller. Within the power-management hierarchy, a DSC sits above general-purpose MCUs in signal-processing capability, making the dsPIC33F family a bridge between the PIC24HJ MCU family and dedicated DSP devices. Microchip confirms that dsPIC33F devices are pin compatible with PIC24HJ and share a high degree of compatibility with dsPIC30F, enabling seamless migration across these families.
Key features include a 16-bit modified Harvard architecture executing up to 40 MIPS, 64KB (64K x 8) of self-programmable Flash, and an 8-channel DMA controller that offloads data movement from the CPU. The peripheral set includes multiple timers (5 timers per Microchip USA product data), two serial I/O interfaces, and Motor Control PWM outputs targeted at precision motor control per the datasheet title.
Architecturally, the dsPIC33FJ64MC804 employs multiple internal buses, a barrel shifter, DSP multiply-accumulate hardware, and boundary-scan support. Supply voltage is specified at 3 V to 3.6 V per digchip specifications data, and the CMOS process delivers low power consumption for embedded control nodes. The 44-TQFP (10x10) package suits both prototyping and volume surface-mount assembly.
Typical applications include precision motor control (BLDC, PMSM, ACIM drives), digital power supplies and inverters, and industrial sensors and instrumentation that rely on high-speed, repetitive computation. The MC suffix denotes the Motor Control peripheral family, with ADC and analog support for closed-loop current sensing.
Designers should decouple the 3.3 V rail locally and account for Flash erase/write endurance when using self-programming. Confirm ADC channel allocation early, as the 44-pin package multiplexes many analog functions.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64MC804T-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 DSPIC33FJ64MC804T-I/PT (same form factor and footprint) — differing in Operating Temperature, Package, Packaging, Pin Compatibility, Program Memory.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64MC804T-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64MC804T-H/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64MC804-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32MC804T-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC804-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.44 / Unit
View Datasheet →DSPIC33FJ64MC804T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F |
| Performance | 40 MIPs |
| Program Memory | 64KB (64K x 8) Flash |
| Data RAM | 8KB |
| Supply Voltage | 3 V to 3.6 V |
| Clock Speed | 40 MHz |
| DMA Channels | 8 |
| Timers | 5 |
| Serial Interfaces | 2 |
| Specialized Peripherals | Motor Control PWM |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 44-TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Lead Free | Yes |
| Life Cycle Stage | ACTIVE |
| Packaging | Tape & Reel (T suffix) |
| Pin Compatibility | PIC24HJ family (per Microchip) |
DSPIC33FJ64MC804T-I/PT 44-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ64MC804T-I/PT (44-tqfp (10x10 mm) 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 DSPIC33FJ64MC804T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64MC804T-I/PT is suitable for 6 applications: Precision Motor Control (BLDC/PMSM Drives), Digital Power Supplies and Inverters, Industrial Sensors and Instrumentation, Embedded Motion Control and Robotics, Audio Signal Processing and Power Amplifiers, Automated Manufacturing Equipment Control.
Precision Motor Control (BLDC/PMSM Drives)
The DSPIC33FJ64MC804T-I/PT was explicitly designed for precision motor control, per its datasheet title and MC (Motor Control) family designation. Its 40 MIPs 16-bit core executes field-oriented control (FOC) inner current loops in well under 100 microseconds, while the Motor Control PWM peripheral generates complementary or independent outputs with dead-time control for three-phase inverters. The 8-channel DMA streams ADC current-sense samples into RAM without CPU intervention, keeping loop jitter minimal. In a typical PMSM servo, the DSC reads shunt or in-line current sensors each PWM cycle, computes Park/Clarke transforms in hardware-assisted DSP instructions, and updates duty cycle - a workload general-purpose MCUs cannot sustain. Choose this device for BLDC, PMSM, and ACIM drives in industrial automation, appliances, and e-mobility subsystems.
Recommended
Digital Power Supplies and Inverters
Digital switching power supplies and solar/battery inverters need deterministic high-frequency control loops, which the DSPIC33FJ64MC804T-I/PT delivers with its 40 MIPs core and Motor Control PWM. The high-resolution PWM supports phase-shifted and interleaved topologies (LLC, totem-pole PFC, buck/boost), while the 8-channel DMA services the ADC at switching frequency for voltage and current feedback. Operating from a 3 V to 3.6 V rail per datasheet specifications, the controller interfaces cleanly with gate-driver ICs and isolation devices. The 64KB Flash stores compensator code, soft-start state machines, and communication stacks (UART/CAN via the serial interfaces) without external memory. DSP multiply-accumulate hardware computes PI and notch compensators cycle by cycle, achieving transient response unattainable with analog-only control at comparable BOM cost.
Recommended
Industrial Sensors and Instrumentation
Smart industrial sensors benefit from the DSPIC33FJ64MC804T-I/PT combination of 16-bit processing, DSP math for filtering and FFT analysis, and multiple serial interfaces for field communication. The -40C to +85C industrial temperature grade covers factory-floor enclosures, and the 3.3 V operation simplifies integration with analog front ends and transceivers. The 8KB SRAM buffers waveform captures while the 64KB Flash stores calibration tables and self-test firmware. DMA offloads continuous ADC sampling of vibration or current signatures so the CPU can run Modbus, CAN, or proprietary protocol stacks concurrently. Boundary-scan support aids production test. For condition-monitoring nodes, current clamps, and process transmitters that compute RMS, THD, or spectral features locally before transmitting results, this DSC provides DSP-class throughput in a low-power CMOS design.
Recommended
Embedded Motion Control and Robotics
Robot joints and multi-axis motion stages require synchronized, low-latency control of several motors plus communication with a host controller. The DSPIC33FJ64MC804T-I/PT runs per-axis FOC loops at 40 MIPs while its two serial I/O interfaces exchange trajectory setpoints over UART or CAN. The Motor Control PWM handles brushless joint motors with sensorless or encoder-based commutation, and the 8-channel DMA keeps ADC encoder and current data flowing without software overhead. With 64KB Flash, a single DSC can host the control loop, a trajectory interpolator, and safety limit checks. Its pin compatibility with the PIC24HJ family lets designers migrate to more I/O if the axis count grows, protecting the firmware investment. Choose it for servo drives, gimbal controllers, and compact multi-axis actuators where DSP math and deterministic timing are mandatory.
Recommended
Audio Signal Processing and Power Amplifiers
Class-D audio amplifiers and active loudspeaker controllers exploit the DSP core of the DSPIC33FJ64MC804T-I/PT for filter banks, dynamic range compression, and PWM modulation of the power stage. The 40 MIPs throughput executes biquad cascades on audio streams in real time, while the barrel shifter and multiply-accumulate instructions handle fixed-point filter arithmetic efficiently. The Motor Control PWM doubles as an audio-rate PWM output with dead-time insertion for half-bridge output stages. The 8KB SRAM buffers delay lines and coefficients, and 64KB Flash stores multiple tuning profiles selectable at runtime. Operating on a clean 3.3 V rail with the two serial interfaces for I2S-style data exchange with audio ADC/DAC front ends, this DSC offers an economical single-chip control path for powered speakers, subwoofer amplifiers, and installation audio systems.
Recommended
Automated Manufacturing Equipment Control
Factory automation nodes - conveyors, pick-and-place actuators, pump controllers - use the DSPIC33FJ64MC804T-I/PT to combine closed-loop motor control with supervisory logic on one chip. Its 40 MIPs core handles PID position loops and sensor fusion, while 64KB Flash accommodates state machines, fault logs, and communication firmware for the two serial I/O interfaces (RS-485/CAN via external transceivers). The industrial -40C to +85C rating and 3 V to 3.6 V operation per digchip specifications suit control cabinets and distributed I/O. The 8-channel DMA ensures ADC monitoring of current, temperature, and limit switches proceeds deterministically even during heavy communication traffic. The boundary-scan capability supports in-circuit production testing, reducing fixture cost. This DSC fits applications needing high-speed repetitive computation plus robust field connectivity in a single 44-TQFP device.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC804T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64MC804T-E/PT | DSPIC33FJ64MC804T-H/PT | DSPIC33FJ64MC804-I/PT | DSPIC33FJ32MC804T-I/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 |
| Flash Program Memory | 64KB (64K x 8) | 64KB | 64KB | 64KB | 32KB |
| Data RAM | 8KB | 8KB | 8KB | 8KB | 8KB |
| Performance | 40 MIPs | 40 MIPs | 40 MIPs | 40 MIPs | 40 MIPs |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| DMA Channels | 8 | 8 | 8 | 8 | 8 |
| Packaging (Ordering) | Tape & Reel (T suffix) | Tape & Reel | Tape & Reel | Tray | Tape & Reel |
Key Differentiators
- Extended temperature option at identical footprint (vs DSPIC33FJ64MC804T-E/PT)
- DSP-grade throughput vs general-purpose MCUs (vs PIC18F27Q10T-I/SS)
- 8-channel DMA reduces CPU load (vs DSPIC33FJ32MC804T-I/PT)
Design Notes
Supply the DSPIC33FJ64MC804T-I/PT from a regulated 3.3 V rail within the specified 3 V to 3.6 V range. Estimated: at 40 MIPs the core current is typically in the tens of milliamps range; verify exact IDD against the datasheet electrical characteristics tables. Decouple each VDD pin with 0.1 uF ceramic capacitors placed within 2 mm of the pin, plus one bulk 10 uF capacitor per power domain. Avoid routing switching motor-power traces under the controller; gate-driver kickback on shared grounds is the most common source of resets in motor-drive boards.
The 44-TQFP (10x10) has 0.8 mm pin pitch - use a standard TQFP-44 land pattern per the Microchip datasheet mechanical drawings. Place the ICLOCK oscillator circuit (crystal and load capacitors) close to the OSC pins with a guard ground ring. Route ADC sense lines away from PWM outputs; star-ground the analog reference to keep motor-drive switching noise out of current-sense measurements. Provide at least one programming/debug header (ICSP) footprint in production layouts for field firmware updates via self-programmable Flash.
Many functions are multiplexed on the 44 pins - configure the Peripheral Pin Select and analog/digital pin assignments before finalizing the schematic, otherwise ADC channels may conflict with PWM or serial pins. Note that digchip lists 69 I/O ports for the family; the 44-pin package exposes fewer, so verify the exact pin map in the datasheet. Do not exceed 3.6 V on any VDD pin, and ensure configuration bits (watchdog, oscillator mode) are set intentionally, as defaults affect startup behavior.
Compliance Information
Package described as 'LEAD FREE, PLASTIC' in digchip specification data for DSPIC33FJ64MC804T-I/PT. REACH and halogen-free status not stated in provided data.
