DSPIC33EP64MC204T-I/PT - 16-bit 70 MIPS DSC 64KB Flash | Microchip
MPN: DSPIC33EP64MC204T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.12 | $5.12 |
| 10 | $4.61 | $46.10 |
| 100 | $4.1 | $410.00 |
| 500 | $3.69 | $1,845.00 |
| 1,000 | $3.32 | $3,320.00 |
DSPIC33EP64MC204T-I/PT Overview
A digital signal controller combines the computational capability of a digital signal processor with the peripheral integration and deterministic behavior of a microcontroller. Within the power management hierarchy of embedded systems, the DSC sits between a general-purpose MCU and a dedicated DSP: it executes single-cycle MAC and DSP instructions while providing motor-control-grade peripherals, making the dsPIC33E family a common choice for real-time closed-loop control.
Key features of the DSPIC33EP64MC204T-I/PT include a 16-bit dsPIC CPU core with DSP-enhanced instruction set, 64 KB of self-programmable Flash, and 8 KB of on-chip RAM. It integrates high-speed MCPWM (motor control PWM), a Quadrature Encoder Interface (QEI) for position feedback, 3 on-chip operational amplifiers, 4 analog comparators, and 4 DMA channels. Connectivity covers I2C, SPI, UART/USART, IrDA, and LINbus. The device operates from a 3.0V to 3.6V single supply with an industrial temperature range of -40C to +85C (I suffix).
Architecturally, the dsPIC33EP core uses a modified Harvard pipeline with a 24-bit instruction word and dual data read in a single cycle, enabling FIR/IIR filtering and field-oriented control (FOC) loops at rates impossible on standard 8-bit MCUs. The PTG (Pulse Train Generator) provides hardware sequencing without CPU intervention, offloading timing-critical tasks.
Typical applications include brushless DC and PMSM motor control drives, digital power supplies (PFC, LLC), sensor signal conditioning using the integrated op-amps, and industrial automation nodes requiring QEI position feedback.
Design consideration: decouple the 3.3V rail with at least one 0.1 uF ceramic capacitor per VDD pin placed within 2 mm of the pin, and connect all VSS pins to a solid ground plane to minimize PWM switching noise coupling into the analog peripherals.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing referenced as of 2026-09-25.
Drop-in alternatives for DSPIC33EP64MC204T-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 DSPIC33EP64MC204T-I/PT (same form factor and footprint) — differing in Operating Temperature, Core Architecture, Series, Packaging, Timers.
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No drop-in alternatives available for this product.
Request AlternativesDSPIC33EP64MC204T-I/PT Maximum Ratings & Electrical Characteristics
| Core Processor | dsPIC33EP (16-bit) |
| Core Size | 16-bit |
| Maximum Speed | 70 MIPS (60 MHz clock) |
| Program Memory Size | 64 KB (22K x 24) Flash |
| RAM Size | 8 KB |
| Supply Voltage Range | 3 V to 3.6 V |
| Connectivity | I2C, SPI, UART/USART, IrDA, LINbus, QEI |
| Motor Control PWM | MCPWM (high-speed) |
| On-chip Op-Amps | 3 |
| Analog Comparators | 4 |
| DMA Channels | 4 |
| Timers | 5 |
| Package | 44-TQFP (10x10 mm) |
| Operating Temperature | -40C to +85C (I grade) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Lifecycle Status | Active |
| Special Peripherals | PTG (Pulse Train Generator), QEI |
DSPIC33EP64MC204T-I/PT 44-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP64MC204T-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 DSPIC33EP64MC204T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP64MC204T-I/PT is suitable for 6 applications: BLDC/PMSM Motor Control Drives, Digital Power Supplies (PFC / LLC), Sensor Signal Conditioning Nodes, Industrial Automation and Motion Control, Robotics and Drones, Automotive and Transport Subsystems.
BLDC/PMSM Motor Control Drives
The DSPIC33EP64MC204T-I/PT is purpose-built for field-oriented control (FOC) of brushless DC and permanent magnet synchronous motors. Its MCPWM peripheral generates complementary 3-phase PWM with hardware dead-time insertion, while the 70 MIPS DSP core with single-cycle MAC executes the Clarke/Park transforms and PI current loops at high bandwidth. The Quadrature Encoder Interface reads rotor position directly, and the 3 on-chip op-amps amplify shunt current-sense signals without external amplifier ICs. The 4 comparators support cycle-by-cycle overcurrent limiting entirely in hardware, ensuring protection even if firmware stalls. Typical usage: place the DSC as the sole controller in a servo or traction drive, with 10-20 kHz PWM and current-loop rates of 10 kHz or more achievable.
Recommended
Digital Power Supplies (PFC / LLC)
In switch-mode power conversion, the DSPIC33EP64MC204T-I/PT implements digital PFC, LLC, or buck control loops with its high-resolution PWM and fast analog comparators. The 70 MIPS core supports nonlinear control laws and adaptive dead-time optimization that analog controllers cannot execute, improving light-load efficiency. The 4 comparators provide hardware overcurrent trip independent of software, and the PTG (Pulse Train Generator) sequences startup and burst modes without CPU load. The 3.0V to 3.6V supply and -40C to +85C industrial range suit telecom rectifier and server PSU environments. Design consideration: budget CPU cycles carefully - control loop plus housekeeping should stay under 60% MIPS utilization to preserve interrupt latency margins.
Recommended
Sensor Signal Conditioning Nodes
The integrated 3 op-amps and 4 comparators make this DSC a compact analog front end for industrial sensors such as pressure bridges, thermocouples, and pH probes. Op-amps are configured in firmware-selectable gain stages to amplify millivolt-level signals before sampling, reducing BOM count and board area versus a discrete amplifier plus MCU solution. The 8 KB RAM buffers waveform captures for FFT-based analysis using the DSP library, and 4 DMA channels move ADC results to memory without CPU intervention. UART or SPI forwards processed data to a host. For best accuracy, run the op-amps from a clean 3.3V rail with local 0.1 uF decoupling and keep analog routing away from PWM traces.
Recommended
Industrial Automation and Motion Control
Factory automation nodes use the DSPIC33EP64MC204T-I/PT as a motion coordinator: the QEI decodes incremental encoder feedback from steppers or servos, timers generate step pulses, and UART/IrDA or LINbus links to a PLC or SCADA host. With 70 MIPS available, the controller can close position and velocity loops while simultaneously running a communication stack. The -40C to +85C temperature range covers unconditioned cabinets, and the 44-pin TQFP provides 51-class I/O multiplexing for limit switches, relays, and status LEDs. Firmware upgradability via self-programmable Flash enables field updates over the serial link, reducing service cost over the product lifetime in deployed machinery.
Recommended
Robotics and Drones
In robotics and UAV platforms, the DSPIC33EP64MC204T-I/PT serves as a dedicated motor-control coprocessor or ESC brain while a host processor handles navigation. The DSP core executes sensorless FOC using back-EMF observers at high loop rates, and the comparators implement hardware commutation edge detection. Its deterministic 16-bit architecture avoids the jitter of general-purpose Linux-class processors, which is critical for stable current control in multi-rotor applications. The 3.3V supply integrates cleanly with common flight-controller rails. Weight-conscious designs benefit from the single 10x10 mm 44-TQFP replacing discrete amplifier, comparator, and controller ICs, cutting both mass and quiescent complexity on the power board.
Recommended
Automotive and Transport Subsystems
For temperature-demanding transport applications, select the DSPIC33EP64MC204T-E/PT sibling, which is AEC-Q100 qualified per Microchip USA and rated -40C to +125C in the identical 44-TQFP footprint. Subsystems such as electric pump controllers, HVAC blower drives, and throttle actuators use the MCPWM, QEI, and comparator blocks for closed-loop actuation, with LINbus connectivity matching in-vehicle network standards. The PCB land pattern is unchanged between I-grade and E-grade parts, letting one layout serve both climate zones. Design consideration: derate junction temperature targets and add generous ground pour under the package, since automotive ambient profiles plus drive dissipation stress the thermal budget beyond industrial levels.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP64MC204T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP64MC204-I/PT | DSPIC33EP64MC204T-E/PT | DSPIC33EP128MC204T-I/PT | DSPIC33EP256MC204T-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 | 64 KB (22K x 24) | 64 KB | 64 KB | 128 KB | 256 KB |
| Core Speed | 70 MIPS (60 MHz) | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| 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 |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E), AEC-Q100 | -40C to +85C (I) | -40C to +85C (I) |
| Packaging | Tape & Reel (T) | Tray/Tube | Tape & Reel | Tape & Reel | Tape & Reel |
| Analog Peripherals | 3 op-amps, 4 comparators | 3 op-amps, 4 comparators | 3 op-amps, 4 comparators | 3 op-amps, 4 comparators | 3 op-amps, 4 comparators |
Key Differentiators
- Integrated analog front end reduces BOM (vs DSPIC33FJ64MC204-I/PT)
- Extended-temperature drop-in sibling available (vs DSPIC33EP64MC204T-E/PT)
- Firmware headroom upgrade path within the same footprint (vs DSPIC33EP256MC204T-I/PT)
Design Notes
Place one 0.1 uF ceramic decoupling capacitor at every VDD pin of the 44-TQFP, within 2 mm of the pin, plus one bulk 4.7-10 uF capacitor near the device. Connect all VSS pins directly to a solid ground plane. Because the MCPWM outputs switch amperes into gate drivers, route PWM traces away from the analog op-amp and comparator inputs; use a ground moat or careful partitioning to keep switching return currents out of the analog section. The exposed routing under a 10x10 mm TQFP should include thermal relief vias only where needed - the package center has no exposed pad.
Verify Peripheral Pin Select (PPS) mapping before locking your schematic: on dsPIC33EP devices many digital peripherals can route to multiple pins, and an incorrect PPS assignment is a leading cause of non-working first prototypes. Also confirm that the configuration fuse settings (oscillator source, PLL prescaler/postscaler for the 60 MHz/70 MIPS target, watch-dog, and code protection) are set in code, not left at defaults. Flashing a 70 MIPS PLL setting with the wrong crystal can silently halve core speed and skew all PWM timing calculations.
Estimated: the 44-TQFP (10x10 mm) theta_JA for this class of device is typically on the order of 45-55 C/W on a standard 4-layer JEDEC board, so at a worst-case industrial 85 C ambient with roughly 150-250 mA of core+I/O current at 3.3 V (about 0.5-0.8 W dissipation), junction temperature rises roughly 25-45 C - within the 125 C absolute limit but with limited margin. Exact theta_JA must be taken from the official Microchip datasheet; add copper pour under the package if the drive runs continuous heavy PWM loads near the upper ambient range.
Compliance Information
The I-grade part is not AEC-Q100 qualified; the DSPIC33EP64MC204T-E/PT variant is listed by Microchip USA as AEC-Q100 qualified. RoHS/lead-free status per current active distributor listings; REACH and conflict-minerals declarations should be confirmed via official Microchip compliance documentation.
