DSPIC33EP64MC504T-I/TL - 70 MIPS 16-bit DSC 64KB Flash | Microchip
MPN: DSPIC33EP64MC504T-I/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.52 | $3.52 |
| 10 | $3.25 | $32.50 |
| 100 | $2.95 | $295.00 |
| 500 | $2.72 | $1,360.00 |
| 1,000 | $2.55 | $2,550.00 |
DSPIC33EP64MC504T-I/TL Overview
A digital signal controller combines the computational capability of a digital signal processor (DSP) with the peripheral integration and control architecture of a microcontroller (MCU). Within the power-management hierarchy, a DSC such as the dsPIC33EP family sits between general-purpose MCUs and dedicated DSPs, making it the preferred choice for closed-loop control systems that require fast multiply-accumulate operations alongside general I/O handling.
Key features include the 70 MIPS dsPIC DSC core with integrated DSP engine, operating from a 3.0 V to 3.6 V single supply, 51 general-purpose I/O ports, and 27 general-purpose timers including nine 16-bit timers. The MCPWM (motor control PWM) module with Quadrature Encoder Interface (QEI) support is the headline peripheral for this MC (Motor Control) suffix variant.
Architecturally, the dsPIC33EP core executes DSP instructions such as MAC and dual data fetch from 16-bit wide instruction words, supported by an 8 kB data RAM sized for control-loop buffering. Flash program memory is 64 KB (22K x 24), sufficient for field-oriented control (FOC) firmware with headroom for communication stacks.
Typical applications include precision sensorless and sensored motor control (BLDC, PMSM, ACIM), digital power supplies and PFC stages, and industrial automation nodes where deterministic PWM timing matters. The -40C to +85C industrial temperature range supports factory-floor environments.
Design consideration: the 3.0-3.6 V supply means 5 V logic interfaces require level shifting or 3.3 V-tolerant buffering; decouple VDD with 0.1 uF per pin plus bulk capacitance for clean ADC and PWM operation.
This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP64MC504T-I/TL — 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 DSPIC33EP64MC504T-I/TL (same form factor and footprint) — differing in Package, Operating Temperature, Packaging, Qualification, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP64MC504-E/MV
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.75 / Unit
View Datasheet →DSPIC33EP64MC503-E/TL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.55 / Unit
View Datasheet →DSPIC33EP128MC504T-I/TL
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MC204T-E/TL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.55 / Unit
View Datasheet →DSPIC33EP64GP504T-E/TL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.5 / Unit
View Datasheet →DSPIC33EP64MC504T-I/TL Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E (16-bit DSC) |
| Core Architecture | 16-bit |
| Number of Cores | 1 |
| Maximum Clock Frequency | 60 MHz |
| Performance | 70 MIPS |
| Program Memory Size | 64 KB (22K x 24) Flash |
| Data RAM Size | 8 kB |
| Operating Supply Voltage | 3 V to 3.6 V |
| I/O Ports | 51 |
| General Purpose Timers | 27 (nine 16-bit timers) |
| Special Peripherals | MCPWM (Motor Control PWM), QEI |
| Package Type | 44-VTLA (6x6 mm, 0.90 mm height) QFN |
| Mounting Style | SMD/SMT |
| Minimum Operating Temperature | -40 C |
| Maximum Operating Temperature | +85 C |
| Packaging | Tape & Reel (T suffix) |
| Life Cycle Stage | ACTIVE |
DSPIC33EP64MC504T-I/TL 44-vtla (6x6 mm, 0.90 mm height) qfn Pin Configuration Guide
Pin configuration for DSPIC33EP64MC504T-I/TL (44-vtla (6x6 mm, 0.90 mm height) qfn 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 DSPIC33EP64MC504T-I/TL.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP64MC504T-I/TL is suitable for 6 applications: BLDC and PMSM Motor Control, Digital Power Supplies and PFC, Industrial Automation Nodes, Sensorless Fan and Pump Control, Battery-Operated Power Tools, Solar Micro-Inverter Control.
BLDC and PMSM Motor Control
The DSPIC33EP64MC504T-I/TL fits sensored and sensorless BLDC/PMSM drives because its MCPWM module provides complementary PWM outputs with hardware dead-time insertion, while the QEI input decodes encoder feedback directly. The 70 MIPS DSP core executes field-oriented control (FOC) loops, including Park/Clarke transforms and PI current regulation, with cycle-count margin at 60 MHz. In a typical topology, the DSC drives a three-phase inverter through gate drivers, samples phase currents via its ADC, and closes current loops at 10-20 kHz. Using the same 44-pin VTLA footprint across Flash variants lets one PCB serve multiple power ratings. The -40C to +85C industrial range covers most factory and appliance environments.
Recommended
Digital Power Supplies and PFC
In digital power applications such as LLC converters, buck/boost stages, and PFC front ends, the DSPIC33EP64MC504T-I/TL replaces analog control ICs with firmware-configurable control laws. Its 70 MIPS core sustains voltage-mode or current-mode loops at switching frequencies of 100-500 kHz with sub-microsecond PWM update granularity via the MCPWM module. The 8 kB RAM buffers compensation coefficients and transient logs, and the 16-bit ADC samples output voltage and inductor current synchronously with the PWM period to avoid switching noise. Placing the DSC between the feedback dividers and the gate-driver stage enables soft-start, burst mode, and fault latch-off in firmware - features that would otherwise need additional analog circuitry.
Recommended
Industrial Automation Nodes
Factory automation nodes - conveyors, pumps, fans, and actuator controllers - benefit from the DSPIC33EP64MC504T-I/TL's blend of DSP-grade control and general-purpose MCU peripherals. The 51 I/O ports and 27 timers (including nine 16-bit timers) handle limit switches, safety interlocks, and multi-channel timing concurrently with the main control loop. UART, SPI, and I2C ports connect to Modbus RTU bridges, HMI panels, and industrial sensors, while the QEI module tracks motor shaft position without external counters. The -40C to +85C range and 3.0-3.6 V operation integrate cleanly with 3.3 V PLC logic. The compact 6x6 mm 44-pin VTLA package suits DIN-rail mounted I/O boards where board area is limited.
Recommended
Sensorless Fan and Pump Control
HVAC blowers, circulation pumps, and server fans use sensorless trapezoidal or sinusoidal control, which the DSPIC33EP64MC504T-I/TL handles efficiently with its MCPWM module and ADC-based back-EMF detection. Sensorless algorithms demodulate the floating phase voltage during PWM off-times; the 70 MIPS core and 8 kB RAM provide the throughput and buffering needed for commutation timing without a position sensor, reducing BOM cost and improving reliability. The 6x6 mm VTLA package with 0.90 mm height fits directly on compact driver boards inside fan housings. Firmware-based commutation tables also enable field updates for acoustic-noise tuning - a key differentiator versus fixed-function fan-driver ICs.
Recommended
Battery-Operated Power Tools
Cordless drills, grinders, and garden tools increasingly use 18-20 V brushless motors controlled by compact DSCs. The DSPIC33EP64MC504T-I/TL provides the 70 MIPS processing needed for high-current FOC with torque limiting and hall-sensor or sensorless commutation, while its 51 I/O ports manage trigger input, LED indicators, battery-fuel-gauge communication, and thermal protection simultaneously. The 3.0-3.6 V supply is derived from the pack via a small buck regulator. Its 64 KB Flash stores multi-mode firmware (drill/torque/screwdriver modes) with headroom, and the industrial -40C to +85C rating tolerates hot motor bays. The compact 44-pin VTLA footprint supports the dense, vibration-tolerant layouts tool PCBs require.
Recommended
Solar Micro-Inverter Control
Micro-inverters and power optimizers need simultaneous MPPT computation, grid-synchronized current injection, and protection monitoring - exactly the multi-rate control workload the DSPIC33EP64MC504T-I/TL is built for. The 70 MIPS DSP core runs MPPT algorithms and PI current loops, while the MCPWM module generates phase-shifted or complementary PWM for the DC-DC and DC-AC stages with hardware dead time. The 27-timer bank schedules ADC sampling precisely at PWM midpoints, minimizing ripple-induced measurement error. Firmware-defined grid-compliance curves (anti-islanding, LVRT) can be updated in the field via the 64 KB Flash. The -40C to +85C range matches outdoor rooftop enclosures, and the compact QFN package conserves board space in per-panel electronics.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP64MC504T-I/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP64MC504-E/MV | DSPIC33EP64MC503-E/TL | DSPIC33EP128MC504T-I/TL | DSPIC33EP64MC204T-E/TL | DSPIC33EP64GP504T-E/TL |
|---|---|---|---|---|---|---|
| Package | 44-VTLA (6x6 mm) QFN | 44-pin VTLA family - same | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 16-bit dsPIC33E, 70 MIPS, 60 MHz | 70 MIPS, 60 MHz | 70 MIPS, 60 MHz | 70 MIPS, 60 MHz | 70 MIPS, 60 MHz | 70 MIPS, 60 MHz |
| Flash Program Memory | 64 KB (22K x 24) | 64 KB | 64 KB | 128 KB (+100%) | 16 KB (-75%) | 64 KB |
| Data RAM | 8 kB | 8 kB | 8 kB | 16 kB | 2 kB | 8 kB |
| MCPWM / QEI Motor Peripherals | Yes (MCPWM + QEI) | Yes | Yes (reduced channels) | Yes | Yes (reduced channels) | No (GP variant) |
| Temperature Range | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) |
| Lifecycle Status | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
Key Differentiators
- Dedicated MCPWM + QEI motor-control hardware (vs DSPIC33EP64GP504T-E/TL)
- Pin-compatible extended-temperature upgrade path (vs DSPIC33EP64MC504-E/MV)
- Compact 6x6 mm 44-pin QFN footprint (vs DSPIC33EP64MC504T-I/PT)
- Flash headroom trade-off within same footprint (vs DSPIC33EP64MC204T-E/TL)
Design Notes
The DSPIC33EP64MC504T-I/TL operates from 3.0-3.6 V, so a 5 V motor-drive rail requires an efficient buck or LDO down-conversion. Estimate: with typical active current of tens of mA at 3.3 V, an LDO dropping from 5 V dissipates roughly 35-100 mW, acceptable for the DSC itself, but never power gate drivers from the DSC rail. Regenerate the VDD rail locally with an LDO such as the MCP1703 and add 0.1 uF ceramic decoupling at each VDD/VDDCORE pin plus one 4.7-10 uF bulk cap; the dsPIC33E core requires correct sequencing of VDDCORE per the datasheet power-supply section.
The 44-pin VTLA (6x6 mm) QFN has a center thermal pad that should be soldered to a ground pour with an array of thermal vias for both mechanical reliability and heat dissipation. Keep the MCPWM output traces to gate drivers short and matched in length to minimize dead-time asymmetry between phases. Route ADC sense lines (phase currents, bus voltage) away from PWM switching nodes and use Kelvin connections at shunt resistors. Place the crystal within 10 mm of the OSC pins with guard ground.
The /TL (Tape & Reel) suffix means the part ships reeled - verify your pick-and-place supports 6x6 mm QFN 0.5 mm pitch before ordering reel quantities. Do not confuse the /TL 6x6 mm QFN with the /PT 10x10 mm TQFP: they are NOT footprint-compatible. Also note the /I temperature ceiling of +85C - for motor housings above that, use the DSPIC33EP64MC504-E/MV. Finally, dsPIC33E Flash self-write requires unlocking sequences; disable interrupts during Flash programming to avoid erratic behavior.
When using the QEI input for encoder feedback, add RC filtering (approximately 1k/100 pF) on the encoder lines to reject PWM-injected noise, and enable the digital noise filter on QEA/QEB in firmware. For sensorless back-EMF sensing, sample the floating phase during the PWM off-time by synchronizing ADC triggers to the MCPWM PWM period - sampling during switching edges produces false commutation points. Use the Peripheral Pin Select (PPS) feature to move noisy PWM outputs away from analog inputs during layout optimization.
Compliance Information
Compliance certificates for this exact ordering code were not present in the verified web data. Microchip dsPIC33EP family parts are typically RoHS-compliant; verify the RoHS certificate on the DigiKey or LCSC product page (LCSC C622829) before finalizing regulated-market designs.
