DSPIC33EP32GP502-H/SP - 16-Bit DSC 32KB Flash 60MHz | Microchip
MPN: DSPIC33EP32GP502-H/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.29 | $18.29 |
| 10 | $16.8 | $168.00 |
| 100 | $15.4 | $1,540.00 |
| 500 | $14.2 | $7,100.00 |
| 1,000 | $13.1 | $13,100.00 |
DSPIC33EP32GP502-H/SP Overview
A digital signal controller is a hybrid device that merges the deterministic control capability of a microcontroller (MCU) with the mathematical throughput of a digital signal processor (DSP). In the power-management hierarchy, the dsPIC33E family sits above general-purpose 8-bit and 16-bit MCUs, offering single-cycle MAC, DSP engine instructions, high-speed PWM, CAN 2.0B, and integrated analog peripherals for embedded control systems such as motor drives and digital power supplies.
Key features include a 70 MIPS-capable dsPIC33E core clocked at 60 MHz in this variant, CAN 2.0B module for industrial networking, two integrated operational amplifiers, three analog comparators, a Peripheral Trigger Generator (PTG), and a Charge Time Measurement Unit (CTMU) for capacitive touch and precise timing measurements. High-speed PWM outputs make the device directly suitable for digital power conversion.
The dsPIC33E architecture uses a 24-bit instruction word with a modified Harvard bus, achieving excellent code density and deterministic single-cycle execution of DSP multiply-accumulate operations. The integrated analog front end, including a high-speed 10/12-bit ADC, op amps, and comparators, reduces external component count in closed-loop control systems.
Typical applications include brushless DC and PMSM motor control, switch-mode power supplies and digital lighting, automotive body and comfort modules leveraging the CAN interface, and general-purpose embedded control where DSP math and robust analog integration are required.
Design consideration: the H-temperature suffix supports extended operating temperature ranges; confirm the exact range against the manufacturer datasheet for your thermal budget, and use the VCAP/VDDCORE pin stabilization per datasheet recommendations for reliable core operation.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet, refreshed as of 2026-09-24.
Drop-in alternatives for DSPIC33EP32GP502-H/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-H/SP (same form factor and footprint) — differing in Package, Communication Interfaces, Core Architecture, Operating Temperature, 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 →DSPIC33EP32GP502-E/SP
✅ Drop-In✓ In Stock
$3.52 / Unit
View Datasheet →DSPIC33EP16GP502-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64GP502-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.55 / Unit
View Datasheet →DSPIC33EP32GP502-H/SP
✅ Drop-In✓ In Stock
$13.1 / Unit
View Datasheet →DSPIC33EP32GP502-H/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E DSC |
| Program Memory (Flash) | 32 KB (10.7K x 24) |
| RAM | 4 KB |
| CPU Speed | 60 MHz (60 MIPS) |
| Package | 28-pin SPDIP, through-hole |
| CAN | CAN 2.0B |
| Integrated Op Amps | 2 |
| Analog Comparators | 3 |
| Peripheral Trigger Generator | Yes (PTG) |
| Charge Time Measurement Unit | Yes (CTMU) |
| PWM | High-Speed PWM |
| Mounting Type | Through-Hole |
| Production Status | In Production |
DSPIC33EP32GP502-H/SP Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/VREF+/CN3/RB0 — Analog input 0 / positive voltage reference / change notification / port B bit 0 |
| Pin 3 | AN1/VREF-/CN2/RB1 — Analog input 1 / negative voltage reference / change notification / port B bit 1 |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select 1 / port B bit 2 |
| Pin 5 | AN3/INDX/CN5/RB3 — Analog input 3 / encoder index / port B bit 3 |
| Pin 6 | AN4/RA0 — Analog input 4 / port A bit 0 |
| Pin 7 | VDD — Positive supply |
| Pin 8 | VSS — Ground |
| Pin 9 | OSC1/CLKI/RA2 — Oscillator crystal input / external clock input |
| Pin 10 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output |
| Pin 11 | PGEC3/AN5/U1CTS/RA3 — Programming clock 3 / analog input 5 / UART1 CTS / port A bit 3 |
| Pin 12 | PGEC2/AN6/OCFA/RB4 — Programming clock 2 / analog input 6 / PWM fault input / port B bit 4 |
| Pin 13 | AN7/RB5 — Analog input 7 / port B bit 5 |
| Pin 14 | AN9/RP36/SOSCI/T2CK/RC13 — Analog input 9 / remappable pin / secondary oscillator input / timer 2 clock |
| Pin 15 | SOSCO/T1CK/RC14 — Secondary oscillator output / timer 1 clock |
| Pin 16 | AN11/RP35/RTCC/RB8 — Analog input 11 / remappable pin / RTCC secondary oscillator / port B bit 8 |
| Pin 17 | AN12/RP34/T5CK/RB9 — Analog input 12 / remappable pin / timer 5 clock / port B bit 9 |
| Pin 18 | PGED1/AN13/RB12 — Programming data 1 / analog input 13 / port B bit 12 |
| Pin 19 | VDD — Positive supply |
| Pin 20 | VSS — Ground |
| Pin 21 | PGEC1/AN14/RB13 — Programming clock 1 / analog input 14 / port B bit 13 |
| Pin 22 | AN15/RB14 — Analog input 15 / port B bit 14 |
| Pin 23 | VBAT — Battery backup input for RTCC |
| Pin 24 | RP40/RB15 — Remappable peripheral pin / port B bit 15 |
| Pin 25 | VSS — Ground |
| Pin 26 | VCAP/VDDCORE — CPU core supply decoupling capacitor connection |
| Pin 27 | AVSS — Analog ground |
| Pin 28 | AVDD — Analog positive supply |
Typical Applications
DSPIC33EP32GP502-H/SP is suitable for 6 applications: Brushless DC / PMSM Motor Control, Switch-Mode Power Supplies and Digital Lighting, CAN-Based Industrial Networking Nodes, Capacitive Touch and CTMU-Based Sensing, Automotive Body and Comfort Electronics, Precision Measurement and Portable Instrumentation.
Brushless DC / PMSM Motor Control
The DSPIC33EP32GP502-H/SP fits motor control because its 60 MHz dsPIC33E core executes single-cycle DSP multiply-accumulate instructions for field-oriented control (FOC) current loops, while high-speed PWM peripherals generate complementary inverter drive signals with dead-time control. The two integrated op amps amplify current-shunt signals internally, and three analog comparators provide hardware-based overcurrent trip without CPU latency, protecting power stages within microseconds. In a typical topology the DSC reads phase currents through the op amps into the ADC, runs FOC at 10-20 kHz, and updates PWM duty cycles each cycle. Using this single-chip approach removes external signal-conditioning ICs, reducing BOM cost; the 32KB Flash accommodates a full FOC stack with CAN diagnostics, and the SPDIP package eases development on breadboards before SOIC production.
Recommended
Switch-Mode Power Supplies and Digital Lighting
For digital power conversion, the DSPIC33EP32GP502-H/SP pairs its high-speed PWM module with fast analog feedback: the three comparators implement cycle-by-cycle current limiting in hardware, and the Peripheral Trigger Generator synchronizes ADC sampling to PWM events with deterministic latency, which is essential for stable voltage-mode or current-mode control loops. The 60 MIPS core supports proportional-integral compensators plus power-metering math in the same firmware image. Typical usage places the DSC in an LLC, buck, or boost converter controlling MOSFET gates through drivers, with the CTMU available for precision timing or sensing functions. Because control law changes require only firmware updates rather than analog redesign, the platform shortens certification iterations; the extended-temperature H grade tolerates hot enclosed power supplies found in LED drivers and industrial adapters.
Recommended
CAN-Based Industrial Networking Nodes
The integrated CAN 2.0B module makes the DSPIC33EP32GP502-H/SP a strong fit for industrial fieldbus nodes such as sensor aggregators, valve controllers, and machine-I/O modules. Running the CAN stack on the 60 MHz core consumes only a fraction of the 32KB Flash, leaving headroom for application logic and DSP filtering, while 4KB RAM buffers message queues. A typical node uses an external CAN transceiver on the CANTX/CANRX pins, communicates at up to 1 Mbps, and performs local signal conditioning via the two op amps and 12-bit-class ADC. The PTG offloads repetitive trigger sequences from the CPU, keeping CAN response deterministic. Compared with MCU-plus-external-CAN-controller two-chip solutions, this single-chip design reduces board area, component count, and bus latency.
Recommended
Capacitive Touch and CTMU-Based Sensing
The Charge Time Measurement Unit (CTMU) on the DSPIC33EP32GP502-H/SP provides a precision constant-current source and time measurement engine, enabling capacitive touch buttons, sliders, and ultrasonic or time-of-flight distance measurements without a dedicated touch controller. Microchip's CTMU-based touch sensing library scans multiple channels with the internal analog multiplexer, using the comparators as threshold detectors for scan-free wake-up and low average current. A typical panel dedicates several RB-port pins to touch pads while remaining GPIO runs LEDs and relays. The extended-temperature H grade allows touch interfaces inside sealed outdoor or industrial enclosures where ambient temperatures climb. Implementing touch on the same DSC that runs application and CAN logic consolidates three previously separate ICs into one 28-pin through-hole device, simplifying both development and supply chain.
Recommended
Automotive Body and Comfort Electronics
The DSPIC33EP family, offered in AEC-Q100-qualified automotive variants per Microchip's family description, suits automotive body modules such as seat controllers, lighting modules, pump drivers, and comfort gateways. The DSPIC33EP32GP502-H/SP's extended-temperature H grade tolerates under-dash and engine-bay-adjacent ambient conditions, while CAN 2.0B connects the module to vehicle networks. High-speed PWM drives lamp ballasts and actuator motors; the op amps and comparators implement current monitoring and protection for inductive loads. The 28-pin SPDIP package supports service-friendly replaceable electronics and low-volume commercial-vehicle builds, and the same design migrates to surface-mount SOIC for mass production. Firmware including LIN-emulation or CAN diagnostics fits comfortably in the 32KB Flash with room for calibration tables in the DSP-safe architecture.
Recommended
Precision Measurement and Portable Instrumentation
The CTMU and integrated analog resources make the DSPIC33EP32GP502-H/SP effective for precision time and analog measurement instruments, including capacitance meters, resistance/leakage testers, and sensor front ends. The CTMU's trimmed current source charges external capacitance while a comparator and timer capture charge time with sub-nanosecond-class resolution, enabling high-resolution capacitance measurement; PTG automates repetitive scan sequences to reduce jitter. The 60 MHz core then applies DSP calibration and linearization algorithms, streaming results over UART, SPI, or I2C. Because the SPDIP package is through-hole, laboratory and educational instruments can be reworked and upgraded easily, and the extended H temperature grade supports bench instruments used near heat sources. The 32KB Flash stores lookup tables, averaging filters, and communication stacks within a single low-cost DSC.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32GP502-H/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32GP502-I/SP | DSPIC33EP32GP502-E/SP | DSPIC33EP16GP502-I/SP | DSPIC33EP64GP502-I/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 |
| Flash Memory | 32 KB (10.7K x 24) | 32 KB | 32 KB | 16 KB | 64 KB |
| RAM | 4 KB | 4 KB | 4 KB | 2 KB | 8 KB |
| CPU Speed | 60 MHz (60 MIPS) | 60 MHz | 60 MHz | 60 MHz | 60 MHz |
| CAN 2.0B | Yes | Yes | Yes | Yes | Yes |
| Op Amps / Comparators | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 | 2 / 3 |
| Temperature Grade | H (extended) | I (-40C to +85C) | E (up to +125C) | I (-40C to +85C) | I (-40C to +85C) |
Key Differentiators
- Extended-temperature H grade for harsh environments (vs DSPIC33EP32GP502-I/SP)
- Integrated analog front end reduces BOM (vs DSPIC33EP16GP502-I/SP)
- Single-chip CAN networking (vs DSPIC33EP64GP502-I/SP)
Design Notes
The dsPIC33E core requires a decoupling capacitor on the VCAP/VDDCORE pin (pin 26) - typically a low-ESR ceramic of the value specified in the Microchip datasheet (on the order of 10 uF) placed as close to the pin as possible. Core stability depends directly on this capacitor; omitting it or using a wrong value causes brown-out resets or erratic execution. Provide separate AVDD/AVSS filtering (ferrite bead plus 0.1 uF) so ADC and comparator noise is not coupled from the digital rail.
Even though the SPDIP package is through-hole, treat layout discipline seriously: route PWM outputs away from analog inputs AN0-AN15, and keep the crystal loop (OSC1/OSC2, pins 9-10) short with ground guard traces. Use the Peripheral Trigger Generator to synchronize ADC sampling away from PWM switching edges, reducing switching noise in motor-control or digital-power feedback loops. Star-ground the analog section at AVSS (pin 27) for best ADC accuracy.
The -H suffix temperature grade differs from the common -I industrial grade; verify the exact H-grade operating range in the Microchip datasheet rather than assuming -40C to +85C. Also, the part supports in-circuit serial programming (ICSP) via PGEC/PGED pairs and MCLR - reserve pin 1 and one PGEC/PGED pair with header access, or field reprogramming becomes impossible. Confirm that RTCC battery backup (VBAT, pin 23) biasing matches your application if calendar functions are used.
Use the Peripheral Pin Select (PPS) feature to route UART, SPI, and PWM away from noisy analog pins when planning your pin map. For CAN 2.0B bus connections, place the transceiver (e.g., MCP2551) close to the CANTX/CANRX pins and terminate the bus at both ends with 120 ohm resistors. Keep high-speed PWM edge rates controlled with series gate resistors to limit ringing on long traces.
Compliance Information
Compliance details for this specific ordering code were not present in the provided web data; verify RoHS/REACH status on the Microchip product page. AEC-Q100 qualification applies to dsPIC33 automotive variants, not this standard GP part.
