DSPIC33EP32GP502-E/SP - 16-Bit 60MIPS DSC 32KB Flash | Microchip
MPN: DSPIC33EP32GP502-E/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.12 | $5.12 |
| 10 | $4.65 | $46.50 |
| 100 | $4.18 | $418.00 |
| 500 | $3.85 | $1,925.00 |
| 1,000 | $3.52 | $3,520.00 |
DSPIC33EP32GP502-E/SP Overview
A Digital Signal Controller combines the computational architecture of a digital signal processor (hardware multiply-accumulate, DSP instruction set) with the peripheral integration and control-oriented design of a microcontroller. In the power-management hierarchy, the dsPIC33E family sits between general-purpose 16-bit MCUs (such as PIC24) and dedicated DSPs, offering single-cycle MAC, high-speed PWM, and advanced analog peripherals on one chip - ideal for real-time closed-loop control.
Key features include the 16-bit dsPIC33E CPU core running at 60 MIPS, 32KB self-programmable Flash with ECC option, 4KB SRAM, CAN 2.0B communication, a Peripheral Trigger Generator (PTG), comparators, CTMU capacitive touch/timing module, and high-speed PWM outputs. According to Microchip product documentation, the GP (general purpose) subfamily integrates advanced analog such as op amps in larger pin-count members of the same die family.
Architecturally, the dsPIC33EP core uses a modified Harvard pipeline with DSP engine (17-bit x 17-bit multiplier, 40-bit accumulator), two address generation units, and deterministic interrupt latency - the traits that make it preferred over ARM Cortex-M0+ parts for time-critical control loops at this price point.
Typical applications include brushless DC and PMSM motor control using the high-speed PWM, switch-mode power supplies and digital power conversion, industrial sensing and precision measurement with the CTMU and comparators, and CAN-enabled embedded control nodes in industrial and vehicle systems.
Design consideration: the E-suffix grade covers -40C to +125C, but derate flash endurance and electrical timing at the top of that range, and always decouple all VDD/VSS pin pairs with 100nF ceramics placed at the pins.
This page synthesizes distributor pricing, pin-compatible dsPIC33EP drop-in variants, and practical design notes beyond what the standard Microchip datasheet page presents.
Drop-in alternatives for DSPIC33EP32GP502-E/SP — 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 DSPIC33EP32GP502-E/SP (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, PWM, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32GP502-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.62 / Unit
View Datasheet →DSPIC33EP16GP502-E/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64GP502-E/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.51 / Unit
View Datasheet →DSPIC33EP128GP502-E/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.64 / Unit
View Datasheet →DSPIC33EP32MC502-E/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MU502-E/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.55 / Unit
View Datasheet →DSPIC33EP32GP502-E/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E (DSC) |
| Maximum CPU Speed | 60 MIPS (60 MHz) |
| Program Memory (Flash) | 32 KB (10.7K x 24) |
| RAM | 4 KB |
| Package | 28-pin SPDIP |
| Operating Temperature | -40C to +125C (extended, E grade) |
| Communication Interfaces | CAN, UART, SPI, I2C |
| Timers | Multiple 16-bit timers |
| Analog Features | 10-bit ADC, comparators, CTMU |
| Peripheral Trigger Generator (PTG) | Yes |
| PWM | High-speed PWM |
| Mounting Type | Through Hole |
| Packaging | Tube |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active (In Production) |
| Manufacturer Lead Time | 35 weeks |
DSPIC33EP32GP502-E/SP 28-pin spdip Pin Configuration Guide
Pin configuration for DSPIC33EP32GP502-E/SP (28-pin spdip 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 DSPIC33EP32GP502-E/SP.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP32GP502-E/SP is suitable for 6 applications: Brushless DC and PMSM Motor Control, Digital Power Conversion (SMPS, PFC, LLC), Industrial Sensing and Precision Measurement, CAN-Enabled Industrial and Vehicle Control Nodes, Audio Signal Processing and Effect Units, Embedded Control and IoT Sensor Nodes.
Brushless DC and PMSM Motor Control
The DSPIC33EP32GP502-E/SP fits sensorless and sensored motor control because its high-speed PWM module provides complementary outputs with dead-time insertion while the 60 MIPS core executes field-oriented control loops deterministically. The Peripheral Trigger Generator chains ADC current-sense sampling directly to PWM events without CPU latency, closing the loop at switching frequency. In a typical sensorless BLDC drive, the 10-bit ADC samples the shunt bus each PWM cycle, the DSP engine computes Clarke/Park transforms in microseconds, and the -40C to +125C E-grade rating survives drive-enclosure temperatures that exceed 85C. Unlike an 8-bit MCU, no software timing tricks are needed to keep the current loop stable at 20 kHz-plus PWM frequencies.
Recommended
Digital Power Conversion (SMPS, PFC, LLC)
Digital power supplies benefit directly from this DSC's architecture: the high-speed PWM delivers the resolution and fast update rates needed for 100 kHz-plus switching, and the 60 MIPS core sustains voltage and current control loops with deterministic latency. The 32KB Flash stores soft-start, fault-management, and communication firmware, while the on-chip comparators can implement hardware overcurrent trips that react faster than any software path. The extended -40C to +125C operating range matches the thermal environment inside power supplies near magnetics and heatsinks. Placed as the sole controller between the feedback dividers and gate drivers, it replaces analog control ICs while adding programmability, PID auto-tuning, and PMBus-style adaptability.
Recommended
Industrial Sensing and Precision Measurement
For industrial measurement nodes, the DSPIC33EP32GP502-E/SP combines a 10-bit ADC, on-chip comparators, and the CTMU (Charge Time Measurement Unit), which measures capacitance, current, and time intervals with sub-nanosecond-class resolution for sensor excitation. The DSP engine performs filtering and FFT analysis on the 4KB RAM data buffers via DMA-style peripheral transfers, while the Peripheral Trigger Generator sequences acquisitions autonomously. The extended temperature range suits pump rooms, foundries, and outdoor cabinets. Typical deployments include 4-20 mA loop transmitters, vibration-monitoring nodes, and capacitive level sensors - the CTMU driving the electrode and the DSC extracting the measurement, all in one 28-pin through-hole package that eases prototyping on breadboards before DIP-to-SMD production migration.
Recommended
CAN-Enabled Industrial and Vehicle Control Nodes
The integrated CAN 2.0B controller distinguishes the GP502 from many competing 28-pin MCUs: it speaks the automotive and industrial automation fieldbus directly without an external CAN controller. In vehicle-body modules, pump controllers, and agricultural electronics, the DSC runs local control loops at 60 MIPS while servicing CAN traffic, with the -40C to +125C E-grade supporting engine-bay and under-chassis locations. The 32KB Flash accommodates application firmware plus a CAN stack (J1939 or CANopen), and the DSP engine handles signal processing between messages. Through-hole SPDIP mounting simplifies serviceability in industrial retrofit applications. Microchip's free CAN stack libraries for dsPIC33EP reduce firmware development time substantially.
Recommended
Audio Signal Processing and Effect Units
The dsPIC33E core's single-cycle 17-bit x 17-bit multiplier and 40-bit accumulator make the DSPIC33EP32GP502-E/SP a cost-effective platform for embedded audio: equalization, compression, echo, and pitch effects run comfortably within its 60 MIPS budget at 48 kHz sampling rates. The 10-bit ADC handles control inputs and low-fidelity capture, while external codecs connect via SPI or the DCI (Data Converter Interface) serial port. The 28-pin SPDIP package and through-hole mounting make it a favorite in DIY audio-effect and educational DSP projects before surface-mount migration. The extended temperature range additionally suits professional amplifiers in hot rack installations where consumer-grade MCUs approach their 85C limit.
Recommended
Embedded Control and IoT Sensor Nodes
As a general embedded controller, the DSPIC33EP32GP502-E/SP offers 60 MIPS of headroom over typical 16-bit MCUs while retaining UART, SPI, and I2C for sensor and radio connectivity. The 4KB RAM buffers protocol stacks for lightweight IoT links, and the PTG offloads repetitive timing sequences from the CPU, cutting power consumption between events. Its 5V-tolerant through-hole DIP form factor suits industrial DIN-rail sensor boards, test fixtures, and legacy equipment upgrades where SMD rework is impractical. The -40C to +125C rating covers unheated outdoor enclosures and cold-chain monitoring. Compared to a PIC24 general-purpose MCU, the DSP engine adds in-node signal conditioning (FFT-based vibration analysis, RMS computation) without a second processor.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32GP502-E/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32GP502-I/SP | DSPIC33EP64GP502-E/SP | DSPIC33EP128GP502-E/SP | DSPIC33EP128MU502-E/SP |
|---|---|---|---|---|---|
| Package | 28-SPDIP | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 32 KB (10.7K x 24) | 32 KB | 64 KB (21.3K x 24) | 128 KB | 128 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 16 KB |
| CPU Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS |
| Temperature Range | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| CAN Interface | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) |
| USB OTG | No | No | No | No | Yes (full-speed USB OTG) |
| Lifecycle Status | Active (In Production) | Active | Active | Active | Active |
Key Differentiators
- Extended -40C to +125C temperature grade at through-hole package (vs DSPIC33EP32GP502-I/SP)
- Integrated CAN 2.0B in a 28-pin DSC (vs DSPIC33EP16GP502-E/SP)
- CTMU precision timing/analog module retained (vs DSPIC33EP128MU502-E/SP)
Design Notes
Decouple every VDD/VSS pin pair with a 100nF X7R ceramic placed within 5mm of the pins, plus one 4.7uF-10uF bulk capacitor near the DIP socket. Because the SPDIP package has long internal leadframes, the ground path inductance is higher than QFN equivalents - a solid ground plane on the PCB and short return paths for the PWM gate-drive currents are essential to prevent ground bounce corrupting the ADC reference. Estimated: at 60 MIPS with 5V VDD, active current is typically tens of milliamps; size the local regulator accordingly per the DS70000657J electrical characteristics table.
When prototyping on the SPDIP package, keep the ICSP/ICD programming header (MCLR, PGCx, PGDx, VDD, VSS) accessible on a standard 5-pin or 6-pin header, since through-hole debugging with PICkit 4 or ICD 4 requires direct access. Route the PWM outputs away from the ADC input traces and CTMU measurement lines; the dsPIC33E Peripheral Pin Select system lets you move digital functions to optimal pins in software - do this before committing the PCB to minimize cross-board crosstalk between 20kHz-class PWM edges and sensitive analog nodes.
Three frequent mistakes with this family: (1) forgetting that the E grade only guarantees +125C operation at reduced electrical conditions - check the derating curves in DS70000657J before running full-speed at temperature extremes; (2) using the wrong oscillator configuration - the dsPIC33E requires PLL setup (FRC or primary crystal with PLL) in configuration words, and an incorrect PLL setting can lock the device out of debug access; (3) assuming the CTMU exists on all variants - the MU subfamily trades it for USB, so firmware written for GP502 will not port unchanged to DSPIC33EP128MU502-E/SP without CTMU removal.
The 28-pin SPDIP package's long leads make it more susceptible to radiated and conducted EMI from fast PWM edges than the QFN variants. Keep gate-drive loop area small, add series resistors (estimated 10-22 ohm, tune on bench) on PWM outputs driving MOSFET gates to slow the edges, and place a snubber on motor phase nodes. For CAN applications, the transceiver should sit within 20mm of the CANTX/CANRX pins with a split-termination topology at the bus connector.
Compliance Information
ROHS3 Compliant per Microchip USA distributor listing. Product status Active per Microchip product page. REACH, halogen-free, and conflict-minerals declarations should be confirmed on the official Microchip product page.
