DSPIC33EP32MC502-E/SS - 16-bit 60MIPS DSC 32KB Flash | Microchip
MPN: DSPIC33EP32MC502-E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.1 | $4.10 |
| 10 | $3.7 | $37.00 |
| 100 | $3.25 | $325.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.7 | $2,700.00 |
DSPIC33EP32MC502-E/SS Overview
A digital signal controller (DSC) combines the computational power of a DSP core with the peripheral integration and programming model of a microcontroller. In the product hierarchy, the DSC sits between general-purpose MCUs and dedicated DSPs, making it the preferred platform for closed-loop power conversion and motion control, where fast multiply-accumulate operations and deterministic interrupt response are required on a single chip.
Key features include the dsPIC33E core executing at up to 60 MIPS, dedicated motor-control PWM (MCPWM) peripherals, integrated operational amplifiers and analog comparators, a CAN module, a Peripheral Trigger Generator (PTG), 4 DMA channels, and 5 timers. The /SS (SSOP-28, 0.65 mm pitch, 0.209 in body) package combined with the -E extended temperature grade enables compact, thermally demanding designs.
The dsPIC33EP architecture integrates DSP engine instructions, a hardware multiplier and divider, and rich analog integration that reduces external component count in motor drives and digital power supplies. The MCPWM module supports complementary, center-aligned outputs with dead-time control essential for BLDC, PMSM, ACIM, and brushed motor control as well as switch-mode power conversion.
Typical applications include brushless DC and permanent-magnet motor control, solar inverters and battery chargers, digital lighting (HID/LED ballasts), and industrial automation nodes requiring CAN connectivity.
Design consideration: the dsPIC33EP requires a VCAP/VDDCORE external capacitor for the internal core regulator; omitting it or selecting the wrong value prevents startup. Verify current SDK/MPLAB X support before design-in.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP32MC502-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 DSPIC33EP32MC502-E/SS (same form factor and footprint) — differing in Core, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesDSPIC33EP32MC502-E/SS Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC33EP DSC |
| CPU Speed | 60 MIPS (60 MHz) |
| Program Memory (FLASH) | 32 KB (10.7K x 24) |
| SRAM | 4 KB |
| Package | 28-SSOP (0.65 mm pitch, 0.209 in body) |
| Operating Temperature | -40C to +125C (E grade) |
| Motor Control PWM (MCPWM) | Yes |
| Operational Amplifiers | Yes (integrated) |
| Analog Comparators | Yes |
| CAN Module | Yes |
| Peripheral Trigger Generator | Yes (PTG) |
| DMA Channels | 4 |
| Timers | 5 |
| Mounting Type | Surface Mount |
| Packaging | Tube (per FindIC listing) |
DSPIC33EP32MC502-E/SS 28-ssop (0.65 mm pitch, 0.209 in body) Pin Configuration Guide
Pin configuration for DSPIC33EP32MC502-E/SS (28-ssop (0.65 mm pitch, 0.209 in body) 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 DSPIC33EP32MC502-E/SS.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP32MC502-E/SS is suitable for 6 applications: Brushless DC Motor Control, Solar Inverters and Digital Power Conversion, Permanent Magnet Synchronous Motor (PMSM) Drives, Industrial Automation with CAN Networking, LED and HID Lighting Ballasts, Battery Chargers and Power Management.
Brushless DC Motor Control
The DSPIC33EP32MC502-E/SS is purpose-built for BLDC drives: the 60 MIPS dsPIC33E core executes field-oriented control or trapezoidal commutation loops with deterministic latency, while the MCPWM module generates complementary center-aligned PWM with hardware dead-time insertion. Integrated op amps amplify shunt current feedback and comparators provide cycle-by-cycle overcurrent trip without external amplification, reducing BOM cost. The extended -40C to +125C grade suits enclosed drive environments. Place the MCU close to the gate drivers, route PWM outputs differentially away from sense lines, and use the PTG to offload sequencing tasks from the CPU for tighter current-loop jitter.
Recommended
Solar Inverters and Digital Power Conversion
In grid-tie microinverters and DC-DC power stages, the DSPIC33EP32MC502-E/SS provides 60 MIPS compute for MPPT algorithms and phase-shifted PWM control. The MCPWM module supports complementary outputs with programmable dead time essential for half-bridge and full-bridge topologies, while the analog comparators implement fast hardware current limiting independent of firmware, protecting MOSFETs during transients. The CAN module links the converter to system-level power management and monitoring networks. The extended temperature rating accommodates outdoor and sealed enclosures; verify VCAP/VDDCORE capacitor layout per Microchip guidelines to ensure core-regulator stability under switching-noise conditions.
Recommended
Permanent Magnet Synchronous Motor (PMSM) Drives
For PMSM and servo drives, the DSPIC33EP32MC502-E/SS combines 60 MIPS execution with the DSP engine multiply-accumulate throughput needed for FOC current loops running at 10-20 kHz. The integrated op amps condition encoder or shunt-feedback signals on-chip, and the MCPWM module's center-aligned mode minimizes current ripple and EMI compared with edge-aligned schemes. Comparators support hardware overcurrent protection with fast response. Firmware for the same core scales across the dsPIC33EP family, enabling shared code between 28-pin cost-optimized drives and 44-pin multi-axis systems. Extended -40C to +125C qualification supports industrial servo environments.
Recommended
Industrial Automation with CAN Networking
The integrated CAN module of the DSPIC33EP32MC502-E/SS makes it a strong fit for industrial nodes - sensors, actuators, and drive controllers - that communicate on CAN 2.0 networks. The 60 MIPS core handles protocol stacks plus local control concurrently, with 4 DMA channels offloading data movement and 5 timers managing scheduling. PTG (Peripheral Trigger Generator) automates analog sampling and PWM update sequences without CPU intervention, freeing headroom for communication. The extended temperature grade tolerates panel-mounted and motor-adjacent locations. Pair with a CAN transceiver and follow Microchip's CAN firmware libraries for Layer-2 implementation.
Recommended
LED and HID Lighting Ballasts
Digital lighting applications - HID ballasts and high-power LED drivers - benefit from the DSPIC33EP32MC502-E/SS combination of adaptive PWM dimming, resonant-converter control, and protection. The MCPWM module drives half-bridge ignition and buck stages with dead-time control, while the analog comparators latch off overcurrent events faster than any software loop, protecting the power stage during lamp ignition transients. The 60 MIPS core runs lamp-identity, temperature-derating, and communication logic simultaneously. The -E extended temperature rating suits enclosed luminaires with elevated internal ambient temperatures, and the 28-pin SSOP footprint keeps driver-board real estate compact.
Recommended
Battery Chargers and Power Management
Multi-chemistry battery chargers use the DSPIC33EP32MC502-E/SS for charge-phase state machines, CC/CV regulation, and termination detection. The 60 MIPS core executes coulomb counting and impedance-based termination algorithms while the MCPWM module regulates the switching power stage; on-chip op amps and comparators provide precise current sensing and hardware protection. The CAN module optionally reports state-of-charge and diagnostics to a vehicle or fleet-management network. The extended -40C to +125C range supports chargers mounted in engine bays or industrial equipment. Use the PTG to trigger ADC sampling synchronized to PWM for ripple-free current averaging.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32MC502-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32MC502-I/SS | DSPIC33EP32MC502T-E/SS | DSPIC33EP32MC202-I/SS | DSPIC33EP32GP502-E/SS |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 60 MIPS (60 MHz) | 60 MIPS (60 MHz) | 60 MIPS (60 MHz) | 60 MIPS (60 MHz) | 60 MIPS (60 MHz) |
| FLASH Memory | 32 KB (10.7K x 24) | 32 KB (10.7K x 24) | 32 KB (10.7K x 24) | 32 KB (10.7K x 24) | 32 KB (10.7K x 24) |
| CAN Module | Yes | Yes | Yes | No | No |
| Motor Control PWM | Yes (MCPWM) | Yes (MCPWM) | Yes (MCPWM) | Yes (MCPWM) | No (GP variant) |
| Temperature Range | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) |
Key Differentiators
- Extended temperature range without footprint change (vs DSPIC33EP32MC502-I/SS)
- CAN bus integration for networked motor control (vs DSPIC33EP32MC202-I/SS)
- Integrated analog front end (vs DSPIC33EP32GP502-E/SS)
Design Notes
The dsPIC33EP integrates a core regulator requiring an external low-ESR capacitor on the VCAP/VDDCORE pin - typically a 10 uF ceramic plus the value specified in the manufacturer datasheet. Omitting it, using excessive ESR, or routing the pin near switching nodes causes brown-out resets or failure to start. Place the VCAP capacitor within 2 mm of the pin with a solid ground return. Decouple each VDD pin with 100 nF close to the pin plus bulk 4.7-10 uF near the device.
For motor-control layouts, keep the MCPWM output traces short and away from the op-amp/comparator analog inputs used for shunt current sensing. Use a single solid ground plane and separate the power-stage power ground from the MCU analog return, joining them at one point near the shunt resistors. Route the MCLR/ICSP programming header to a 5-pin or 6-pin connector (MCLR, VDD, GND, PGD, PGC) for in-circuit programming with MPLAB SNAP or ICD, per Microchip programming specification.
Confirm the exact core-regulator capacitor value and configuration against the manufacturer datasheet before layout - dsPIC33EP core-regulator requirements differ from dsPIC33F predecessors and copying an old schematic is a frequent startup failure cause. Also note the RPx remappable pin architecture: peripheral-to-pin assignments are made in firmware (PPS registers), so hardware design must reserve candidate pins for all peripherals you may map. Verify the -E grade temperature derating if the device runs at maximum frequency near +125C.
Compliance Information
Compliance status not stated in retrieved distributor listings; verify on the official Microchip product page compliance documentation.
