DSPIC33EP128MC506T-I/PT - 16-bit DSC 70 MIPS 128KB | Microchip
MPN: DSPIC33EP128MC506T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.84 | $58.40 |
| 100 | $5.21 | $521.00 |
| 500 | $4.78 | $2,390.00 |
| 1,000 | $4.35 | $4,350.00 |
DSPIC33EP128MC506T-I/PT Overview
A digital signal controller combines the compute throughput of a digital signal processor with the peripheral integration and deterministic control of a microcontroller. In the power-management hierarchy, the dsPIC33EP family sits above general-purpose PIC16/PIC18 MCUs and targets closed-loop control systems such as digital power conversion, motor drives, and embedded control systems that need hardware multiply-accumulate (MAC) and fast interrupt response in a single chip.
Key differentiating features include the high-speed PWM (MCPWM) module with complementary outputs, dead-time insertion and fault protection for three-phase inverter control, integrated analog comparators, and on-chip operational amplifiers that offload external analog front-end components. Communication coverage spans UART, SPI, I2C, and CAN, plus a 4-channel DMA controller and five 16-bit timers, supported by data given in distributor listings as 16B FLASH organization, 16KB RAM, and 60 MHz oscillator-driven operation per Mouser.
Architecturally, the dsPIC33EP core executes an enhanced 16-bit modified Harvard instruction set with DSP multiply-accumulate, 40-bit accumulators, and zero-overhead looping, letting firmware implement FOC (field-oriented control) or digital filters deterministically at 70 MIPS. According to the Microchip dsPIC33EP128MC506 product family documentation, the device operates from a 3.0 V to 3.6 V supply.
Typical applications include brushless DC and PMSM motor drives, solar micro-inverters and digital power supplies, and industrial automation nodes requiring CAN connectivity. The peripheral set maps directly onto precision motor control reference designs from Microchip.
Design consideration: budget decoupling on all VDD/VSS pairs and confirm the -40C to +85C industrial temperature rating (I-grade) against your thermal profile; the E-grade variant covers -40C to +125C if higher ambient is required.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP128MC506T-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 DSPIC33EP128MC506T-I/PT (same form factor and footprint) — differing in Core, Package, Supply Voltage, Timers, Max CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128MC506T-E/PT
✅ Drop-In✓ In Stock
$4.62 / Unit
View Datasheet →DSPIC33EP128MC206-I/PT
✅ Drop-In✓ In Stock
$3.95 / Unit
View Datasheet →DSPIC33EP128GM306-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.15 / Unit
View Datasheet →DSPIC33CK256MP205-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.55 / Unit
View Datasheet →DSPIC33CK512MP606T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.86 / Unit
View Datasheet →DSPIC33EP128MC506T-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit DSC core |
| Max CPU Speed | 70 MIPS |
| Oscillator Frequency | 60 MHz |
| Program Memory | 128 KB (43K x 24) FLASH |
| RAM | 16 KB |
| Supply Voltage | 3.0 V to 3.6 V |
| Package | 64-TQFP (10x10 mm) |
| Operating Temperature | -40C to +85C (I grade) |
| Interfaces | I2C, SPI, UART/USART, IrDA, CAN |
| DMA Channels | 4 |
| Timers | 5 |
| Analog Peripherals | OpAmps, Comparators |
| PWM | MCPWM high-speed PWM for motor control |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| RoHS Status | RoHS compliant |
DSPIC33EP128MC506T-I/PT 64-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP128MC506T-I/PT (64-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 DSPIC33EP128MC506T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128MC506T-I/PT is suitable for 6 applications: Brushless DC / PMSM Motor Drives, Digital Power Conversion (AC/DC, Inverters), Industrial Automation and CAN Networking Nodes, Battery-Powered Portable Equipment, Automotive Auxiliary Motor Control, Test, Measurement and Signal Processing Instruments.
Brushless DC / PMSM Motor Drives
The DSPIC33EP128MC506T-I/PT fits sensorless and sensored BLDC/PMSM drives because its 70 MIPS DSP core executes field-oriented control (FOC) loops deterministically while the MCPWM module generates three-phase complementary PWM with hardware dead-time insertion and fault shutdown. On-chip op amps amplify shunt current-sense signals and comparators provide cycle-by-cycle overcurrent protection, reducing external component count in the inverter stage. With 16 KB RAM and DMA, phase-current sampling and Clarke/Park transforms run without CPU stalls. Placed at the heart of a 3.3 V digital control board driving a gate-driver stage, the DSC's 10x10 mm 64-TQFP footprint keeps the controller compact; the trade-off is a 3.0 V to 3.6 V supply rail, so gate-driver logic levels must be level-managed or a 3.3 V-compatible driver chosen.
Recommended
Digital Power Conversion (AC/DC, Inverters)
Switched-mode power supplies, solar micro-inverters, and PFC stages benefit from the DSPIC33EP128MC506T-I/PT's DSP MAC engine and high-resolution PWM phase control. The 70 MIPS core closes voltage- and current-mode loops at switching frequencies in the hundreds of kHz with headroom for soft-start, burst mode, and protection state machines. The 4-channel DMA streams ADC results to RAM so control-loop ISR latency stays minimal, and hardware comparators implement fast overcurrent shutdown independent of firmware. According to Microchip's dsPIC33E positioning, this peripheral set directly targets energy-efficient digital power designs. Integration tip: use the CAN interface for PMBus-style supervisory telemetry in rack or telecom power systems, and allocate the op amps for input current shaping in PFC front ends.
Recommended
Industrial Automation and CAN Networking Nodes
In factory automation, the integrated CAN module makes the DSPIC33EP128MC506T-I/PT a natural node controller for motor drives, conveyors, and actuator endpoints on CANopen-style networks. The 70 MIPS core handles protocol stacks plus local control concurrently, while 128 KB of self-programmable FLASH supports field firmware updates over the bus. UART, SPI, and I2C connect local sensors, HMI segments, and EEPROM configuration storage, and the 5-timer bank schedules deterministic scanning of I/O. The industrial -40C to +85C rating covers panel-mounted enclosures. Use the PTG (peripheral trigger generator) noted in distributor descriptions to sequence ADC sampling against PWM cycles without CPU intervention, keeping jitter low in coordinated multi-axis systems.
Recommended
Battery-Powered Portable Equipment
Handheld instruments, portable chargers, and battery test equipment use the DSPIC33EP128MC506T-I/PT where computation-heavy tasks (impedance measurement DSP, charging state estimation) meet real-time PWM control of converters. The 3.0 V to 3.6 V supply maps directly onto a single Li-ion cell via a small LDO or buck, and the dsPIC33EP family's power-managed sleep and idle modes reduce average draw between measurement bursts. The 16 KB RAM buffers acquisition data, and DMA moves samples without waking the core fully. Because the 64-TQFP package exposes ample GPIO, one DSC replaces separate measurement MCU plus PWM controller in compact designs. Designers should note the 70 MIPS active-mode current budget and leverage idle modes during duty gaps to preserve battery life.
Recommended
Automotive Auxiliary Motor Control
For pumps, fans, and actuation modules in vehicles, the AEC-Q100 qualified E-grade sibling (DSPIC33EP128MC506T-E/PT) shares this part's exact footprint and firmware, letting a single design serve both industrial (-I) and automotive (-E) builds. The DSC's MCPWM with fault inputs meets fail-safe requirements for brushed and BLDC auxiliary motors, and its comparators implement hardware overcurrent trip without firmware latency. The -40C to +125C E-grade range covers underhood and near-engine locations where the -I/PT part's -40C to +85C limit would be exceeded. CAN connectivity integrates the node into body or powertrain networks. Choose the -I/PT for cost-optimized non-automotive builds and the -E/PT variant for qualified automotive deployments on the same PCB.
Recommended
Test, Measurement and Signal Processing Instruments
Bench instruments, data loggers, and active filter modules exploit the DSPIC33EP128MC506T-I/PT's DSP engine: 40-bit accumulators and single-cycle MAC execute IIR/FIR filtering, RMS computation, and FFT preprocessing locally at up to 70 MIPS. The op amps condition sensor signals before the ADC, the comparators provide event detection, and DMA streams sampled data to the 16 KB RAM for buffering toward a host over UART or SPI. The 64-TQFP's peripheral pin multiplexing lets one PCB serve multiple instrument SKUs by reassigning pins in firmware. For precision front ends, keep analog traces away from PWM outputs and use the on-chip PTG to time ADC conversions synchronously with excitation signals, minimizing beat-frequency artifacts in the measurement chain.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128MC506T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128MC506T-E/PT | DSPIC33EP128MC206-I/PT | DSPIC33EP128GM306-E/PT | DSPIC33CK256MP205-I/PT | DSPIC33CK512MP606T-I/PT |
|---|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 100 MIPS | 100 MIPS |
| FLASH Program Memory | 128 KB (43K x 24) | 128 KB | 128 KB | 128 KB | 256 KB | 512 KB |
| Operating Temperature | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C | -40C to +125C (E grade) | -40C to +85C | -40C to +85C |
| Peripheral Focus | MCPWM, OpAmps, Comparators, CAN | Identical (same die) | Reduced motor-control set | General-purpose set | New-generation PWM/ADC | New-generation PWM/ADC |
| 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 | 3.0 V to 3.6 V |
Key Differentiators
- Identical die in automotive qualification (vs DSPIC33EP128MC506T-E/PT)
- Full motor-control peripheral set retained (vs DSPIC33EP128MC206-I/PT)
- Zero firmware-port drop-in expansion (vs DSPIC33CK256MP205-I/PT)
Design Notes
The dsPIC33EP128MC506 requires a single 3.0 V to 3.6 V rail. Decouple every VDD/VSS pin pair with 100 nF ceramic capacitors placed within 2 mm of the pins, plus one bulk 10 uF per board region. If the design drives motor gate circuitry, isolate the digital return from power-stage return at a single point to prevent PWM ground bounce corrupting ADC readings. Estimated: at 70 MIPS the core current is in the tens of mA range per Microchip family power budgets - verify against the datasheet electrical characteristics table for your supply design.
On the 64-TQFP (10x10 mm), route the ICSP programming pair (PGC/PGD) to a standard 5-pin header even in production boards - it costs nothing and saves rework for firmware updates. Keep analog op-amp input traces short and guard them from the high-speed PWM outputs on the opposite package side. The QFN/MR variants in the same family need exposed-pad thermal vias, but the TQFP lands pattern conventionally on 0.5 mm pitch with standard reflow profiles.
Migrating firmware within the family: the -I/PT is industrial grade (-40C to +85C); substituting the AEC-Q100 -E/PT is a safe drop-in, but swapping to dsPIC33CK parts (DSPIC33CK256MP205, DSPIC33CK512MP606) requires register-map changes and a new compiler device selection - plan a firmware port project, not a solder-in swap. Also confirm oscillator configuration fuses: incorrect PLL settings are the most common bring-up failure on dsPIC33EP designs.
Compliance Information
RoHS/lead-free per Microchip standard TQFP packaging on distributor listings. AEC-Q100 qualification applies to the -E/PT variant, not this -I/PT part. REACH/halogen-free status not stated in provided data.
