DSPIC33EP32GP502T-E/SO - 16-bit DSC 32KB Flash 60MIPS | Microchip
MPN: DSPIC33EP32GP502T-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.92 | $49.20 |
| 100 | $4.31 | $431.00 |
| 500 | $3.85 | $1,925.00 |
| 1,000 | $3.42 | $3,420.00 |
DSPIC33EP32GP502T-E/SO Overview
A digital signal controller combines the computational architecture of a digital signal processor with the peripheral integration and control-oriented instruction set of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC such as this part sits above simple 8-bit MCUs and is a direct member of the dsPIC33E family of 16-bit microcontrollers and digital signal controllers.
Key features include a 16-bit dsPIC core with DSP instruction support (MAC, DSP multiply-accumulate), an on-chip 10-bit or 12-bit multi-channel ADC, multiple PWM modules suitable for motor control and power conversion, DMA, brown-out detect/reset, power-on reset, and a watchdog timer. Communication interfaces cover CAN, I2C, SPI, UART/USART, IrDA, and LINbus, enabling integration into automotive and industrial networks.
Technical depth: the DSPIC33EP32GP502 runs from a 3.3V supply and reaches 60 MIPs using its internal PLL from a primary oscillator or internal fast RC oscillator. The Peripheral Trigger Generator (PTG) allows autonomous, hardware-triggered peripheral sequencing, offloading the CPU in real-time control loops. The 33EP general-purpose family also provides CTMU-based touch sensing capability and code-dense instruction execution suited to general-purpose and DSP-blend applications.
Typical applications include automotive body modules and sensor nodes (the -E extended temperature suffix and AEC-Q100 qualification support harsh environments), digital power supplies and motor control leveraging the high-speed PWM and ADC, and industrial CAN-networked control nodes using the integrated CAN 2.0B module.
Design consideration: the VCAP pin requires the datasheet-specified low-ESR capacitor to ground for internal regulator stability; omitting or under-sizing this capacitor is the most common cause of erratic reset behavior on dsPIC33E designs.
This page synthesizes distributor pricing, same-package drop-in alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet, giving engineers a single citable reference. Pricing reflects distributor data as of 2026-09-24.
Drop-in alternatives for DSPIC33EP32GP502T-E/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 DSPIC33EP32GP502T-E/SO (same form factor and footprint) — differing in Package, Operating Temperature, Core Architecture, RAM, Functional Safety Support.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32GP502T-I/SO
✅ Drop-In✓ In Stock
$2.2 / Unit
View Datasheet →DSPIC33EP32GP502-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.65 / Unit
View Datasheet →DSPIC33EP64GP502T-E/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP16GP502T-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32MC202T-E/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32GP502T-E/SO Maximum Ratings & Electrical Characteristics
| Core Processor | dsPIC 33EP (16-bit) |
| Core Size | 16-bit |
| Speed | 60 MIPs |
| Program Memory Size | 32KB (10.7K x 24) FLASH |
| RAM Size | 2K x 16 |
| Supply Voltage | 3.3 V |
| Number of I/O | 21 |
| Package | 28-SOIC (0.295in, 7.50mm width) |
| Operating Temperature | -40C to +125C (extended) |
| Connectivity | CANbus, I2C, IrDA, LINbus, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT, PTG, CTMU |
| ADC Resolution | 10-bit / 12-bit |
| Mounting Type | Surface Mount |
| Qualification | Automotive, AEC-Q100 |
| Series | dsPIC 33EP |
| Packaging | Tape & Reel (T suffix) |
DSPIC33EP32GP502T-E/SO Pin Configuration
| Pin 1 | MCLR — Master clear reset / programming voltage input (VPP) |
| Pin 2 | RA0/AN0 — Port A bit 0 / analog input 0 / C1IN1+ / PWM1L |
| Pin 3 | RA1/AN1 — Port A bit 1 / analog input 1 / C1IN1- / PWM1H |
| Pin 4 | RA2 — Port A bit 2 / external interrupt / Timer2 external clock |
| Pin 5 | RA3 — Port A bit 3 / Timer2 external clock / interrupt |
| Pin 6 | RA4 — Port A bit 4 / clock output / SOSCI |
| Pin 7 | VDD — Positive supply (3.3V) |
| Pin 8 | RB0/PWM2L — Port B bit 0 / PWM2L / analog input |
| Pin 9 | RB1/PWM2H — Port B bit 1 / PWM2H / analog input |
| Pin 10 | RB2/PWM3L — Port B bit 2 / PWM3L / analog input |
| Pin 11 | RB3/PWM3H — Port B bit 3 / PWM3H / analog input |
| Pin 12 | VSS — Ground reference |
| Pin 13 | RA5/SOSCO — Port A bit 5 / secondary oscillator output |
| Pin 14 | VCAP — Internal regulator output - connect low-ESR capacitor to VSS |
| Pin 15 | RB4 — Port B bit 4 / analog input / general purpose I/O |
| Pin 16 | RB5/PGD3 — Port B bit 5 / In-Circuit Debug programming data |
| Pin 17 | VDD — Positive supply (3.3V) |
| Pin 18 | RB6/PGEC3 — Port B bit 6 / In-Circuit Debug programming clock |
| Pin 19 | RB7/PGD2 — Port B bit 7 / programming data channel 2 |
| Pin 20 | VSS — Ground reference |
| Pin 21 | RA6/PGEC2 — Port A bit 6 / programming clock channel 2 |
| Pin 22 | RA7/PGD1 — Port A bit 7 / programming data channel 1 |
| Pin 23 | RB8/PWM4L — Port B bit 8 / PWM4L / general purpose I/O |
| Pin 24 | RB9/PWM4H — Port B bit 9 / PWM4H / general purpose I/O |
| Pin 25 | VSS — Ground reference |
| Pin 26 | RB10/PGEC1 — Port B bit 10 / programming clock channel 1 |
| Pin 27 | RB11/PGD1 — Port B bit 11 / programming data / general purpose I/O |
| Pin 28 | VDD — Positive supply (3.3V) |
Typical Applications
DSPIC33EP32GP502T-E/SO is suitable for 6 applications: Automotive Body and Sensor Modules, Digital Power Supply and PFC Control, BLDC and PMSM Motor Control, Industrial CAN Network Nodes, Capacitive Touch Human Interfaces, Portable Instrumentation and Data Loggers.
Automotive Body and Sensor Modules
The DSPIC33EP32GP502T-E/SO fits automotive body electronics because it combines AEC-Q100 qualification, the extended -40C to +125C temperature range of the -E suffix, and an integrated CAN 2.0B module for in-vehicle networking. A typical body-node design uses the 60 MIPs core to run the application plus CAN stack, the 10/12-bit ADC to read resistive sensors and switches, and LINbus-capable UART for sub-network communication. The 28-SOIC package suits cost-sensitive, two-layer boards common in body modules. With 32KB FLASH there is room for diagnostics and OBD-style messaging, while brown-out reset and watchdog timer support functional robustness requirements typical of automotive power rails.
Recommended
Digital Power Supply and PFC Control
Digital SMPS, LLC converters, and PFC stages benefit from the DSPIC33EP32GP502T-E/SO's high-speed PWM modules with programmable dead time and the Peripheral Trigger Generator that fires ADC conversions synchronized to PWM events. The 60 MIPs core executes compensation loops (PI or 3P3Z) within a single PWM period at switching frequencies up to the hundreds of kilohertz range, while the 10/12-bit ADC resolves feedback voltages and currents. The 3.3V, 21-I/O device closes the loop through external gate drivers and feedback dividers. Using a DSC rather than an analog controller enables adaptive startup sequencing, nonlinear gain scheduling, and digital fault logging without changing hardware.
Recommended
BLDC and PMSM Motor Control
Brushless DC and permanent-magnet synchronous motor drives use the DSPIC33EP32GP502T-E/SO to generate a three-phase complementary PWM with hardware dead-time insertion, sample phase currents via the fast ADC triggered by PTG, and run field-oriented or trapezoidal control on the 60 MIPs core. The 2KB RAM holds current controllers and commutation state for small motors, and the 32KB FLASH accommodates sensorless observers such as sliding-mode or BEMF estimation. Its -40C to +125C range suits motor-mounted or enclosed inverter environments. Communication options (CAN or UART) connect the drive to supervisory controllers, and DMA offloads data movement to keep loop timing deterministic.
Recommended
Industrial CAN Network Nodes
Factory automation nodes - remote I/O, actuator controllers, and condition-monitoring sensors - are served well by the DSPIC33EP32GP502T-E/SO's integrated CAN 2.0B controller, which implements the protocol in hardware so the 60 MIPs CPU is free for application logic. The extended temperature range tolerates cabinet and machinery-floor environments, and SPI/I2C ports connect ADCs, EEPROMs, and displays. The 21 GPIO lines handle digital I/O expansion with the remaining peripherals handling timing. Because the controller is a single 28-SOIC device, node BOM cost stays low, and the AEC-Q100 qualification provides the ruggedness margin industrial customers increasingly demand in OEM specifications.
Recommended
Capacitive Touch Human Interfaces
The dsPIC33EP family includes the CTMU (Charge Time Measurement Unit), which enables capacitive touch sensing without a dedicated touch IC: the DSPIC33EP32GP502T-E/SO measures electrode charge time through the CTMU and resolves touch events in firmware using Microchip's touch sensing libraries. Designs such as appliance control panels, industrial keypads, and sealed front panels benefit because the 12 ADC channels can be multiplexed across multiple electrodes while the 60 MIPs core performs filtering and gesture decoding. The -40C to +125C range supports appliances and outdoor equipment, and UART/SPI links report touch state to a host controller, replacing mechanical switches for improved reliability and sealing.
Recommended
Portable Instrumentation and Data Loggers
Battery-powered instruments leverage the DSPIC33EP32GP502T-E/SO's low-power modes and DMA to sample sensors periodically, buffer data in the 2KB RAM, and stream via UART or SPI to nonvolatile storage. The 10/12-bit ADC handles analog sensor front ends directly, while the CTMU can measure precise RC timing for resistive or capacitive probes. The 60 MIPs core applies digital filtering and scaling between samples and returns to sleep to conserve battery. Extended temperature operation suits loggers mounted in engines, HVAC plant, and outdoor enclosures, and the 28-SOIC footprint keeps small PCBs economical for medium-volume instrument production runs.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32GP502T-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32GP502T-I/SO | DSPIC33EP32GP502-I/SO | DSPIC33EP64GP502T-E/SO | DSPIC33EP32MC202T-E/SO |
|---|---|---|---|---|---|
| Package | 28-SOIC (7.50mm) | 28-SOIC (7.50mm) - same | 28-SOIC (7.50mm) - same | 28-SOIC (7.50mm) - same | 28-SOIC (7.50mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 60 MIPs | 60 MIPs | 60 MIPs | 60 MIPs | 60 MIPs |
| FLASH Program Memory | 32KB (10.7K x 24) | 32KB | 32KB | 64KB | 32KB |
| RAM | 2KB | 2KB | 2KB | 2KB | 2KB |
| Operating Temperature | -40C to +125C (extended) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +125C (extended) | -40C to +125C (extended) |
| Analog Feature Set | GP: ADC + CTMU, PTG | GP: ADC + CTMU, PTG - same | GP: ADC + CTMU, PTG - same | GP: ADC + CTMU, PTG - same | MC: PWM-focused, reduced analog |
| AEC-Q100 Qualification | Automotive, AEC-Q100 | Standard grade - check variant | Standard grade - check variant | Automotive, AEC-Q100 | Automotive, AEC-Q100 |
Key Differentiators
- Extended -40C to +125C temperature grade (vs DSPIC33EP32GP502T-I/SO)
- Tape & Reel delivery for automated assembly (vs DSPIC33EP32GP502-I/SO)
- Cost-optimized 32KB FLASH point (vs DSPIC33EP64GP502T-E/SO)
Design Notes
The dsPIC33EP32GP502 integrates an on-chip regulator whose output appears on the VCAP pin (pin 14 in 28-SOIC). Per Microchip's dsPIC33EP family datasheet, VCAP must be connected to a low-ESR capacitor to VSS; the internal regulator uses this node for core supply filtering. Omitting the capacitor, using a high-ESR type, or routing noisy signals near it causes spurious resets and erratic oscillator behavior. Additionally, decouple all three VDD pins (7, 17, 28) with 0.1uF ceramics placed within 3-5mm of each pin, plus one bulk 4.7-10uF capacitor near the supply entry.
For In-Circuit Serial Programming, reserve access to MCLR (pin 1), the PGD/PGC pairs, and VDD/VSS before routing - the recommended ICSP pair for this device uses RB5 (PGD3) and RB6 (PGEC3), which sit adjacent on pins 16-18, making a single 5-pin programming header convenient. Keep the MCLR trace short and include a 10k pull-up to VDD with an optional 100-470 ohm series resistor for programmer protection. Do not use the PGD/PGC pins for peripherals that toggle during programming sessions, or debugging will conflict with the application circuit.
Configure unused analog-capable pins as digital outputs driving low, or as inputs with external pull resistors, to prevent floating-input oscillation that increases supply current in sleep modes. When using the CTMU or the 12-bit ADC mode, pay attention to acquisition time settings - insufficient acquisition on high-impedance sources produces gain errors rather than obvious noise. Finally, the PLL multiplier means the input oscillator can run well below 60 MIPs equivalent frequency; verify the OSCCON configuration words match your crystal, because incorrect PLL settings are a common bring-up failure on dsPIC33E designs.
Compliance Information
Listed as Automotive, AEC-Q100 qualified in DigiKey and Hotenda product data. RoHS and lead-free status per standard Microchip 33EP family product listings; REACH and halogen-free status not explicitly stated in provided data.
