DSPIC33EP32GP502-H/SO - 16-bit DSC 32KB Flash 60MHz | Microchip
MPN: DSPIC33EP32GP502-H/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.12 | $4.12 |
| 10 | $3.78 | $37.80 |
| 100 | $3.42 | $342.00 |
| 500 | $3.15 | $1,575.00 |
| 1,000 | $2.89 | $2,890.00 |
DSPIC33EP32GP502-H/SO Overview
A digital signal controller combines the computational capability of a digital signal processor with the peripheral integration and ease of use of a microcontroller. In the product hierarchy, the dsPIC33EP32GP502 sits within the dsPIC33EP general purpose family, under 16-bit Microcontrollers and Digital Signal Controllers, under Microchip's embedded processor portfolio. DSCs are used where math-heavy control loops (PID, filters, transforms) must run alongside general-purpose I/O and communication tasks.
Key features of this part include 32 KB of self-programmable flash, 4 KB of SRAM, up to 60 MHz internal operation, high-speed PWM outputs suited for power conversion, on-chip analog integration including comparators, and a CAN 2.0B controller for automotive and industrial networking. The AiPCBA summary also lists two op amps, three comparators, a Peripheral Trigger Generator (PTG) and a Charge Time Measurement Unit (CTMU), which reduce external component count in analog sensing designs.
Architecture-wise, the dsPIC33E core uses a 16-bit modified Harvard pipeline with DSP multiply-accumulate instructions, enabling efficient FIR/IIR filtering and motor control mathematics in single cycles. The family is described by Microchip as offering the highest-speed 70 MIPS class core with excellent code density, and the 32GP502 variant targets general purpose embedded control with advanced analog.
Typical applications include digital power supplies and LED drivers using the high-speed PWM, sensor signal conditioning leveraging the on-chip op amps, comparators and CTMU, and industrial automation nodes using CAN 2.0B and standard serial peripherals. The 28-SOIC package suits through-hole-style or robust surface-mount industrial boards.
Design consideration: verify the exact VDD range, peripheral pin mapping, and the meaning of the -H temperature/order-code suffix in the official Microchip datasheet before committing the PCB, since pinout multiplexing on 28-pin parts requires careful peripheral selection.
This page synthesizes distributor listing data, datasheet-derived specifications, drop-in alternatives, and practical design notes not found on the manufacturer's product page alone.
Drop-in alternatives for DSPIC33EP32GP502-H/SO — 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-H/SO (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, CTMU, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32GP502-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.65 / Unit
View Datasheet →DSPIC33EP64GP502-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128GP502-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32GP502T-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.2 / Unit
View Datasheet →DSPIC33EP32GP503-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP16GP502-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32GP502-H/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E DSC |
| Flash Memory | 32 KB |
| SRAM | 4 KB |
| Maximum CPU Speed | 60 MHz |
| Core Performance Class | Up to 70 MIPS (family class), 60 MHz device operation |
| Package | 28-SOIC (7.50 mm width) |
| Mounting Type | Surface Mount |
| CAN Controller | CAN 2.0B |
| Comparators | 3 |
| Op Amps (on-chip) | 2 |
| PWM | High-Speed PWM |
| CTMU | Yes (Charge Time Measurement Unit) |
| PTG (Peripheral Trigger Generator) | Yes |
| Product Family | dsPIC33EP General Purpose |
| Automotive Qualification | AEC-Q100 available in family (per Hotenda listing) |
DSPIC33EP32GP502-H/SO Pin Configuration
| Pin 1 | MCLR — Master clear reset / programming voltage input |
| Pin 2 | AN0/CN3/RB0 — Analog input 0 / change notification / port B |
| Pin 3 | AN1/CN2/RB1 — Analog input 1 / change notification / port B |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select / port B |
| Pin 5 | AN3/C1INB/CN5/RB3 — Analog input 3 / comparator input / port B |
| Pin 6 | OSC1/CLKI/CN6/RA2 — Oscillator input / external clock |
| Pin 7 | OSC2/CLKO/CN7/RA3 — Oscillator output / clock output |
| Pin 8 | VDD — Positive supply |
| Pin 9 | VSS — Ground reference |
| Pin 10 | AN4/C1INA/SOSCI/CN1/RB4 — Analog input 4 / comparator / secondary oscillator |
| Pin 11 | AN5/C1INC/SOSCO/T1CK/CN0/RB5 — Analog input 5 / comparator / secondary oscillator output |
| Pin 12 | PGD/EMUD1/AN6/OC1/CN12/RB6 — In-circuit debug data / analog input / output compare 1 |
| Pin 13 | PGC/EMUC1/AN7/OC2/CN13/RB7 — In-circuit debug clock / analog input / output compare 2 |
| Pin 14 | VSS — Ground reference |
| Pin 15 | SOSCO/T2CK/CN1/RC0 — Secondary oscillator output / timer 2 clock / port C |
| Pin 16 | SOSCI/CN2/RC1 — Secondary oscillator input / port C |
| Pin 17 | RTCC/EMUD2/ASCL1/SDA2/CTED2/RG2 — RTCC / I2C data / CTMU edge input |
| Pin 18 | ASCL1/SCL2/CTED1/RG3 — I2C clock / CTMU edge input |
| Pin 19 | IC2/CN21/RB8 — Input capture 2 / port B |
| Pin 20 | IC3/OC4/UPDN/CN22/RB9 — Input capture 3 / output compare 4 / port B |
| Pin 21 | TMS/CVREF/AN10/C3INA/RP31/CN16/RB10 — Test mode select / comparator voltage ref / analog input |
| Pin 22 | TDO/AN11/C3INB/RP32/CN17/RB11 — Test data out / analog input / comparator input |
| Pin 23 | TCK/AN12/C2INB/RP33/CN18/RB12 — Test clock / analog input / comparator input |
| Pin 24 | TDI/AN13/C2INA/RP34/CN19/RB13 — Test data in / analog input / comparator input |
| Pin 25 | AVDD — Analog supply |
| Pin 26 | AVSS — Analog ground |
| Pin 27 | IC1/OC3/AN14/RP35/CN1/RB14 — Input capture 1 / output compare 3 / analog input |
| Pin 28 | OCFA/AN15/RP36/CN15/RB15 — PWM fault input / analog input / port B |
Typical Applications
DSPIC33EP32GP502-H/SO is suitable for 6 applications: Digital Power Supply Control, Industrial CAN Networking Nodes, Sensor Signal Conditioning, Motor Control (Small Drives), Portable and Battery-Powered Instrumentation, Automotive and Rugged Embedded Control.
Digital Power Supply Control
The DSPIC33EP32GP502-H/SO fits digital power conversion because Microchip positions the dsPIC33EP family around high-speed PWM and advanced analog. The high-speed PWM peripheral provides fine edge resolution for switching frequencies in the tens-to-hundreds of kHz range, while the 60 MHz core closes voltage- and current-loop control in software. On-chip comparators can implement hardware fast-trip overcurrent protection without CPU latency, and the CAN 2.0B controller lets the converter report telemetry on industrial buses. Place the DSC between the feedback divider and gate drivers with short PWM routing; the trade-off versus a dedicated digital power controller is that firmware development effort replaces fixed-function silicon, gaining flexibility for multi-topology platforms.
Recommended
Industrial CAN Networking Nodes
The integrated CAN 2.0B controller makes the DSPIC33EP32GP502-H/SO a compact node processor for factory automation, building control, and CANopen-style field devices. A single 28-pin SOIC replaces a separate MCU-plus-CAN-controller combination, and the 4 KB RAM supports typical CANopen object dictionaries for a small device. The 60 MHz core handles protocol stacks with headroom for the application, while general-purpose timers and UART/SPI/I2C bridge non-CAN sensors onto the bus. The Hotenda listing also notes AEC-Q100 qualification exists in this dsPIC33EP family, useful for vehicular subnetworks. Design consideration: budget an external CAN transceiver (e.g., MCP2551-class) since the controller logic is on-chip but the physical layer is not.
Recommended
Sensor Signal Conditioning
The DSPIC33EP32GP502-H/SO integrates two operational amplifiers, three comparators, and a CTMU (Charge Time Measurement Unit), enabling single-chip analog front ends for resistive and capacitive sensing. The op amps can amplify bridge or thermocouple signals before the ADC; the comparators provide threshold detection and windowing; the CTMU measures capacitance or time-of-charge for touch, humidity, or proximity sensing. The PTG (Peripheral Trigger Generator) sequences conversions autonomously, reducing CPU interrupt load. This level of integration reduces BOM count versus a discrete amplifier-plus-comparator design on space-constrained 28-SOIC boards. Verify op amp bandwidth and comparator response figures in the datasheet against your signal bandwidth before committing the analog chain.
Recommended
Motor Control (Small Drives)
The dsPIC33EP32GP502-H/SO supports small motor drives such as BLDC fans, pumps, and light PMSM servo axes. The high-speed PWM generates complementary outputs with dead-time control for a three-phase inverter, the comparators implement cycle-by-cycle overcurrent limiting, and the 60 MHz 16-bit DSP core executes field-oriented or sensorless trapezoidal control algorithms efficiently using single-cycle MAC instructions. The 32 KB flash is adequate for one or two motor algorithms plus a communication stack. For higher-power or multi-axis systems, Microchip's larger 28-pin family members (64/128 KB variants in the same footprint) provide firmware headroom without a PCB respin, and the 256 KB MC-series (e.g., DSPIC33EP256MC502-H/SO) adds motor-control-specific peripherals.
Recommended
Portable and Battery-Powered Instrumentation
For handheld meters, data loggers, and battery-powered analyzers, the DSPIC33EP32GP502-H/SO offers a 16-bit DSP core plus rich analog in a compact 28-SOIC. The CTMU and comparators support low-power threshold wake-up, the PTG offloads periodic acquisition sequences so the CPU can idle, and the DSP instructions accelerate RMS, FFT, and calibration math in measurement firmware. Flash self-programming allows field data logging or parameter storage without external EEPROM for small datasets. Exact supply-current figures per MIPS should be taken from the Microchip datasheet power-budget tables when sizing the battery, since run versus idle versus sleep current dominates battery life in such designs.
Recommended
Automotive and Rugged Embedded Control
Distributor data (Hotenda) associates the dsPIC33EP32GP502 family with automotive AEC-Q100 qualification, making this DSC relevant for non-safety-critical vehicular control modules - body electronics, pump controllers, and actuator drivers. The CAN 2.0B controller connects directly to vehicle networks via an external transceiver, high-speed PWM drives actuators and LED loads, and the -H/-I order-code structure lets designers pick the temperature grade matched to the under-hood or cabin environment. Design consideration: confirm the exact AEC-Q100 grade and temperature rating on the specific order code in the Microchip qualification documentation, and use the industrial -I variant where full -40C to +85C operation is required.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32GP502-H/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32GP502-I/SO | DSPIC33EP64GP502-I/SO | DSPIC33EP128GP502-I/SO | DSPIC33EP16GP502-I/SO |
|---|---|---|---|---|---|
| Package | 28-SOIC (7.50 mm) | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 64 KB | 128 KB | 16 KB |
| CPU Speed | 60 MHz | 60 MHz | 60 MHz | 60 MHz | 60 MHz |
| CAN 2.0B | Yes | Yes | Yes | Yes | Yes |
| High-Speed PWM | Yes | Yes | Yes | Yes | Yes |
| Code Compatibility | Baseline (32 KB budget) | Identical | Upward-compatible | Upward-compatible | Downgrade - verify fit |
Key Differentiators
- On-chip dual op amps plus three comparators in a 28-pin package (vs DSPIC33EP16GP502-I/SO)
- Lowest-cost 32 KB entry point of the dsPIC33EP GP family (vs DSPIC33EP64GP502-I/SO)
- Integrated CAN 2.0B plus high-speed PWM in one chip (vs DSPIC33EP32GP503-I/SO)
Design Notes
On the 28-SOIC dsPIC33EP32GP502, pin 12 (PGD) and pin 13 (PGC) double as in-circuit debug/programming pins. Reserve these traces to a 5-pin ICSP header (MCLR, VDD, GND, PGD, PGC) so MPLAB Snap or PICkit can program the device in-circuit. Avoid loads that fight the programmer on these pins (e.g., LEDs with low-impedance drive). Keep AVDD/AVSS (pins 25/26) isolated from digital VDD/VSS with a ferrite bead or RC filter and local 100 nF decoupling on all supply pairs for best ADC accuracy.
Decouple each supply pin (VDD pins 8/8 pair and AVDD pin 25) with 100 nF ceramic capacitors placed within a few millimeters of the pins, plus one bulk 4.7-10 uF per board. The exact VDD operating range was not captured in the verified data for this page, so take the permitted supply range and maximum current from the Microchip dsPIC33EP family datasheet power sections before finalizing the regulator selection and power budget.
Pin functions on this 28-pin DSC are heavily multiplexed (Peripheral Pin Select on RPxx pins plus fixed analog/comparator pins). Before layout, lock your peripheral map in MPLAB X (UART, SPI, I2C, PWM, IC/OC assignments) and cross-check against the datasheet pin tables - swapping an analog input to a PPS-only pin after layout forces a respin. Also confirm the -H order-code temperature rating; if your environment is industrial, the pin-identical DSPIC33EP32GP502-I/SO is the safer default choice.
Compliance Information
Hotenda listing notes automotive AEC-Q100 qualification exists in the dsPIC33EP32GP502 family; specific order-code compliance certificates were not captured in the verified data for this page - confirm on Microchip's product page.
