DSPIC33EP128MC502T-E/SS - 16-bit 60 MIPS DSC | Microchip
MPN: DSPIC33EP128MC502T-E/SS ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
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DSPIC33EP128MC502T-E/SS Overview
A digital signal controller combines the compute throughput of a DSP engine with the peripheral integration and interrupt architecture of a microcontroller. Within the power-management hierarchy of embedded systems, the dsPIC33EP family sits between general-purpose MCUs (such as the PIC16 and PIC18 lines) and full DSPs, providing MAC/DSP instructions, fast interrupt response, and precision analog peripherals in one device.
Key features include the 16-bit dsPIC DSC core running at 60 MIPS, 128KB self-programmable FLASH, 8KB on-chip RAM, and integrated motor-control peripherals that enable sensorless control of brushless DC (BLDC) and permanent-magnet synchronous motors (PMSM). The AEC-Q100 qualification and extended -40C to +125C temperature rating allow use in automotive and harsh-environment industrial systems.
Architecturally, the dsPIC33EP core pairs a pipelined 16-bit CPU with a dedicated DSP multiply-accumulate unit and flexible clocking (internal PLL from crystal or internal FRC oscillator), giving deterministic real-time behavior for current-loop control at motor-control switching frequencies. The Tape & Reel (T) ordering option supports automated high-volume SMT assembly.
Typical applications include BLDC/PMSM motor drives, digital power supplies (power factor correction, DC-DC control), automotive body and comfort modules, and industrial automation sensors and actuators.
For design, keep the 3.0V-3.6V supply within tolerance, decouple each VDD/VSS pair closely, and budget MIPs against the control-loop period. Verify RAM allocation (8KB) early in firmware planning, since control algorithms plus communications stacks can approach this limit.
This page synthesizes distributor pricing context, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33EP128MC502T-E/SS — 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 DSPIC33EP128MC502T-E/SS (same form factor and footprint) — differing in Operating Temperature, Package, Core, RAM, Maximum CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128MC502-E/SS
✅ Drop-In✓ In Stock
$2.95 / Unit
View Datasheet →DSPIC33EP128MC502-I/SS
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →DSPIC33EP128GP502-E/SS
✅ Drop-In✓ In Stock
$2.75 / Unit
View Datasheet →DSPIC33EP128MC502T-E/SS Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC DSC |
| Core Performance | 60 MIPS |
| Program Memory (FLASH) | 128KB (43K x 24) |
| RAM | 8KB |
| Operating Voltage | 3 V to 3.6 V |
| Package | 28-SSOP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +125C (E extended) |
| Qualification | AEC-Q100 qualified |
| Product Family | dsPIC33EP (dsPIC 33EP) |
| Product Type | Digital Signal Controller (DSC) / Microcontroller IC |
| Packaging Option | Tape & Reel (T suffix) |
| Core Architecture | 16-bit with integrated DSP engine |
DSPIC33EP128MC502T-E/SS 28-ssop Pin Configuration Guide
Pin configuration for DSPIC33EP128MC502T-E/SS (28-ssop 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 DSPIC33EP128MC502T-E/SS.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128MC502T-E/SS is suitable for 6 applications: BLDC Motor Control, PMSM Field-Oriented Control, Digital Power Supplies, Automotive Body and Comfort Modules, Industrial Automation and Actuators, Embedded Sensing and Signal Processing Nodes.
BLDC Motor Control
The DSPIC33EP128MC502T-E/SS fits brushless DC motor control because its 60 MIPS 16-bit core with integrated DSP multiply-accumulate instructions executes commutation and current-loop algorithms at the rates demanded by typical 20-50 kHz PWM switching. Microchip explicitly positions the dsPIC33EP family for high-performance, energy-efficient, quieter motor drives. In a typical three-phase drive, the DSC reads current and position feedback, runs trapezoidal or sensorless commutation, and generates complementary PWM outputs. The AEC-Q100 qualification of this -E/SS variant extends use into automotive blower, pump, and actuator drives where -40C to +125C operation is required.
Recommended
PMSM Field-Oriented Control
For permanent-magnet synchronous motor (PMSM) field-oriented control (FOC), the DSPIC33EP128MC502T-E/SS provides the 60 MIPS headroom needed to close current loops inside one PWM period while running Clarke/Park transforms and PI regulators in fixed-point DSP arithmetic. Microchip states the dsPIC33E family enables precision motor-control systems that are more energy efficient, quieter in operation, and have extended life - the direct benefits of FOC. The 8KB RAM holds control-state variables, filter histories, and observer states for sensorless algorithms, though larger observers or Model Reference Adaptive Controllers should be RAM-budgeted carefully during firmware design.
Recommended
Digital Power Supplies
The DSPIC33EP128MC502T-E/SS suits digitally controlled power converters such as power factor correction stages, LLC and buck converters, and UPS systems. Its 60 MIPS core and DSP engine close voltage and current loops at switching frequencies typical of modern converters, replacing analog compensation networks with firmware that can adapt gain schedules in real time. The 3V-3.6V supply separates controller logic from the power stage, and the AEC-Q100 qualification plus -40C to +125C range allows deployment in automotive on-board chargers and telecom rectifiers where reliability standards apply. The 128KB FLASH leaves room for adaptive-control firmware and diagnostics.
Recommended
Automotive Body and Comfort Modules
Because DSPIC33EP128MC502T-E/SS is AEC-Q100 qualified with an extended -E temperature rating of -40C to +125C, it is appropriate for automotive body electronics: HVAC damper actuators, seat adjusters, pump controllers, and lighting modules that embed small motors. The 16-bit DSC handles both the control task and housekeeping firmware (LIN/CAN-style communication handled with appropriate transceivers) on one chip, reducing bill-of-material count. Designers should verify supply-rail behavior during crank and load-dump conditions and follow Microchip automotive application guidance for EMC robustness at the 60 MIPS operating point.
Recommended
Industrial Automation and Actuators
In factory automation, the DSPIC33EP128MC502T-E/SS controls servo actuators, conveyer drives, and robotic joint motors where deterministic real-time response matters. The dsPIC33EP interrupt architecture provides fast, predictable context switching for time-critical control loops while slower protocol and supervision tasks run in the main loop. Its 128KB (43K x 24) FLASH accommodates trajectory generation, communications, and diagnostics simultaneously. The extended temperature and AEC-Q100 pedigree give margin in hot enclosures near drives and motors, and the 28-SSOP Tape & Reel packaging suits automated production of compact industrial control boards.
Recommended
Embedded Sensing and Signal Processing Nodes
Beyond motion, the DSPIC33EP128MC502T-E/SS works as a smart sensor node: its integrated DSP instructions perform FFT, digital filtering, and thresholding directly on sampled analog data, enabling local decisions without a host processor. The 16-bit core at 60 MIPS outperforms typical 8-bit MCUs on signal-processing workloads while retaining MCU-style peripherals and interrupt behavior. Typical deployments include vibration monitoring, current-sensing analysis, and acoustic detection in industrial and automotive environments, where the -40C to +125C rating and AEC-Q100 qualification provide environmental margin. The 28-SSOP package keeps node PCB area small.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128MC502T-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128MC502-E/SS | DSPIC33EP128MC502-I/SS | DSPIC33EP128GP502-E/SS |
|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 60 MIPS (16-bit) | 60 MIPS (16-bit) | 60 MIPS (16-bit) | 60 MIPS (16-bit) |
| FLASH Program Memory | 128KB (43K x 24) | 128KB (43K x 24) | 128KB (43K x 24) | 128KB (43K x 24) |
| RAM | 8KB | 8KB | 8KB | 8KB |
| Operating 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 |
| AEC-Q100 Qualification | Qualified | Qualified | Not qualified (industrial grade) | Qualified |
| Peripheral Focus | Motor Control (MC) | Motor Control (MC) | Motor Control (MC) | General Purpose (GP) |
Key Differentiators
- Automotive-grade extended temperature in 28-SSOP (vs DSPIC33EP128MC502-I/SS)
- Motor Control (MC) peripheral allocation (vs DSPIC33EP128GP502-E/SS)
- Tape & Reel sourcing for high-volume SMT (vs DSPIC33EP128MC502-E/SS)
Design Notes
The DSPIC33EP128MC502T-E/SS requires a 3V to 3.6V supply. Regulate to 3.3V with tight tolerance and place 100nF ceramic decoupling capacitors at each VDD/VSS pin pair, plus bulk capacitance near the device. In motor-drive systems, route noisy power-stage grounds separately from the DSC analog/digital ground and join at a single point to keep ADC readings and oscillator jitter under control. Verify supply integrity during motor PWM transients with an oscilloscope probe at the device pins.
Plan RAM early: the device provides 8KB, per the Microchip USA listing. FOC control states, sensorless observers, DMA buffers, and a communications stack can approach this limit; overflowing RAM surfaces as linker errors late in development or runtime corruption if stacks collide. Also remember this is the -E extended/AEC-Q100 variant - do not substitute the -I industrial variant in automotive builds without re-qualifying, and keep the two variants out of the same reel only when the qualification plan permits.
Use the 28-SSOP footprint with short, direct traces on the oscillator and PWM outputs. Keep high-current motor traces away from the DSC and its analog inputs to reduce noise coupling into ADC channels used for current feedback. If the PCB is shared with the non-T tube-packaged DSPIC33EP128MC502-E/SS or Tape & Reel -I/SS variants, the land pattern is identical, so one layout serves prototyping (tube) and production (Tape & Reel) sourcing strategies without redesign.
Estimated: at 60 MIPS from a 3.3V rail, controller core current is in the tens-of-milliamps class, so device self-heating is modest; the -40C to +125C rating leaves margin in most enclosures. Compute actual dissipation as VDD x IDD from your measured firmware load, add ambient extremes of the target automotive zone, and confirm junction temperature stays within the datasheet maximum. Avoid placing the DSC adjacent to hot power MOSFETs or buck inductors on a shared PCB.
Compliance Information
AEC-Q100 qualification and -E extended temperature range confirmed from Microchip USA and DigiKey listings. RoHS/REACH/lead-free status not stated in the provided verified data and is left as unknown rather than assumed.
