DSPIC33EP128GP502-E/SP - 16-bit DSC 60 MIPS 128KB Flash | Microchip
MPN: DSPIC33EP128GP502-E/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.6 | $5.60 |
| 10 | $5.04 | $50.40 |
| 100 | $4.48 | $448.00 |
| 500 | $4.03 | $2,015.00 |
| 1,000 | $3.64 | $3,640.00 |
DSPIC33EP128GP502-E/SP Overview
A Digital Signal Controller combines the deterministic interrupt architecture and peripheral set of a microcontroller with the DSP engine (single-cycle MAC, DSP instruction set) of a digital signal processor, placing it in the hierarchy DSC -> 16-bit microcontroller -> embedded processor -> semiconductor. This makes dsPIC33E devices a common choice where control loops and math-intensive signal processing coexist, such as motor control and digital power conversion.
Key features include the 16-bit dsPIC RISC core at 60 MIPS, 128 KB self-programmable Flash, 8 KB RAM, 21 general-purpose I/O pins, and integrated peripherals including high-speed PWM, DMA, Brown-out Detect/Reset (BOR), Power-on Reset (POR), and a Watchdog Timer (WDT). The E/SP suffix denotes the extended automotive temperature grade in the SPDIP package.
Architecturally, the dsPIC33EP core supports C compiler development in Microchip MPLAB X with the XC16 compiler, and in-circuit serial programming (ICSP) through any PGECx/PGEDx pin pair, simplifying field updates and debugging. The DMA controller offloads data movement between peripherals and RAM, freeing CPU cycles for control algorithms.
Typical applications include industrial motor control (BLDC, PMSM, stepper), digital power supplies and converters, automotive auxiliary systems requiring AEC-Q100 parts, and general-purpose embedded control with DSP filtering requirements.
Design consideration: the SPDIP package suits prototyping and low-volume through-hole assembly; for space-constrained or automated SMT production, the same die is available in SSOP and QFN-suffix packages, but those are not drop-in replacements for the SPDIP footprint.
This page synthesizes verified distributor data, family drop-in alternatives, pricing context, and practical design notes not found together in the manufacturer datasheet. Pricing shown is an estimate as of 2026-09-23.
Drop-in alternatives for DSPIC33EP128GP502-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 DSPIC33EP128GP502-E/SP (same form factor and footprint) — differing in Operating Temperature, Package, PWM, Communication Interfaces, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128GP502-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP256GP502-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-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.62 / Unit
View Datasheet →DSPIC33EP128GM302-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128GP502-E/SP Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC33EP RISC with DSP engine |
| Max CPU Speed | 60 MIPS |
| Flash Program Memory | 128 KB (43K x 24) |
| SRAM | 8 KB |
| Supply Voltage | 3.3 V |
| I/O Pins | 21 |
| Package | 28-SPDIP |
| Mounting Type | Through Hole |
| Operating Temperature | -40C to +125C (E grade) |
| Qualification | AEC-Q100 (automotive) |
| PWM | High-Speed PWM |
| DMA Channels | Yes (DMA controller) |
| Watchdog Timer | Yes (WDT) |
| Reset Features | POR, Brown-out Detect/Reset (BOR) |
| Programming Interface | ICSP via PGECx/PGEDx pairs |
| Packaging | Tube |
DSPIC33EP128GP502-E/SP 28-spdip Pin Configuration Guide
Pin configuration for DSPIC33EP128GP502-E/SP (28-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 DSPIC33EP128GP502-E/SP.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128GP502-E/SP is suitable for 6 applications: Industrial Motor Control, Digital Power Conversion, Automotive Auxiliary Control Modules, Sensor Signal Processing and DSP Filtering, Prototyping and Embedded Education, General-Purpose Embedded Control with Communication.
Industrial Motor Control
The DSPIC33EP128GP502-E/SP fits brushless DC, PMSM, and stepper motor control because its 60 MIPS DSP core executes field-oriented control loops with single-cycle MAC instructions while the high-speed PWM module generates complementary dead-band-gated outputs. In a typical drive, the CPU runs the current loop at 10-20 kHz using ADC samples triggered by the PWM, and the DMA moves conversion results to RAM without CPU intervention, preserving timing determinism. The 128 KB Flash accommodates FOC math, protection state machines, and communication stacks with headroom. Through-hole SPDIP suits prototype drives and low-volume industrial equipment; move to an SMT sibling for volume production.
Recommended
Digital Power Conversion
For digital SMPS, LLC converters, and PFC stages, the DSPIC33EP128GP502-E/SP provides the combination of fast control-loop execution and the high-speed PWM peripheral with per-cycle duty updates. The 60 MIPS core closes voltage and current loops at switching frequencies up to a few hundred kHz, while the DMA streams ADC samples into RAM buffers for efficiency-mapping firmware. The 128 KB (43K x 24) Flash supports adaptive control, soft-start sequencing, and fault logging simultaneously. Its AEC-Q100 qualification extends usage into onboard chargers and power factor correction stages in automotive-adjacent systems. Board-level prototyping is simplified by the SPDIP package and ICSP programming via any PGECx/PGEDx pair.
Recommended
Automotive Auxiliary Control Modules
Because this device is AEC-Q100 qualified and rated -40C to +125C, it is appropriate for non-safety-critical automotive auxiliary electronics: actuator drivers, pump and fan controllers, lighting modules, and sensor conditioning units mounted in hot zones. The 3.3V core with 5V-tolerant-friendly peripheral design around 21 I/O pins integrates directly with automotive sensor levels through simple conditioning, and the Watchdog Timer plus Brown-out Reset provide the self-monitoring behavior expected in vehicle environments. The high-speed PWM drives lamps, valves, and small motors directly. Note that AEC-Q100 does not by itself confer ISO 26262 functional-safety certification; verify the applicable ASIL requirements before use in safety paths.
Recommended
Sensor Signal Processing and DSP Filtering
The DSP engine of the DSPIC33EP128GP502-E/SP executes FIR and IIR filters, FFTs, and RMS computations in single-cycle MAC operations, making it a compact solution for conditioning vibration, acoustic, and current-waveform sensor data at the edge. With 60 MIPS of throughput, real-time bandpass filtering and peak detection at kilohertz sample rates leave ample CPU margin for decision logic. The 8 KB SRAM bounds filter length - for example, supporting hundreds of 16-bit filter taps with double-buffered blocks via DMA. 128 KB Flash retains calibration tables and multiple filter profiles. The extended temperature grade suits sensors in industrial enclosures and vehicle engine bays where ambient exceeds +85C.
Recommended
Prototyping and Embedded Education
The 28-pin SPDIP through-hole package makes the DSPIC33EP128GP502-E/SP ideal for breadboard prototyping, university embedded-systems labs, and hobbyist designs, where socketed, hand-solderable parts dramatically ease iteration. The device programs and debugs over ICSP using low-cost PICkit-class tools, and MPLAB X IDE with the XC16 compiler is free, giving students full professional toolchains at zero software cost. Remappable Peripheral Pin Select (RPn pins) teaches flexible peripheral routing without PCB respins. The 60 MIPS core with a genuine DSP instruction set distinguishes coursework from basic 8-bit labs. Firmware written on the SPDIP part ports unchanged to SMT family members used in production designs.
Recommended
General-Purpose Embedded Control with Communication
As a general 16-bit controller, the DSPIC33EP128GP502-E/SP covers data loggers, HVAC controls, battery chargers, and instrumentation front ends. Its 21 I/O pins, remappable UART, SPI, and I2C peripherals, DMA, and 128 KB self-programmable Flash (enabling field firmware updates) handle the canonical requirements of connected embedded products. The Watchdog Timer, Power-on Reset, and Brown-out Reset reduce external component count in cost-sensitive designs. The extended -40C to +125C range allows deployment in outdoor enclosures and rooftop equipment without derating analysis. For designs outgrowing 128 KB of code or needing CAN, pin-compatible family variants such as DSPIC33EP256GP502 and DSPIC33EP128GM302 offer an upgrade path on the same PCB footprint.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128GP502-E/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128GP502-I/SP | DSPIC33EP256GP502-I/SP | DSPIC33EP128GM302-I/SP |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same |
| Core Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS |
| Flash Memory | 128 KB (43K x 24) | 128 KB | 256 KB | 128 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| I/O Pins | 21 | 21 | 21 | 21 |
Key Differentiators
- Extended temperature and automotive qualification (vs DSPIC33EP128GP502-I/SP)
- Through-hole SPDIP package (vs DSPIC33EP128GP502-E/MM)
- 128 KB Flash sweet spot (vs DSPIC33EP64GP502-I/SP)
Design Notes
ICSP programming requires a matched PGECx/PGEDx pair - if PGEC2 carries ICSPCLK, PGED2 must carry ICSPDAT; mixing pairs from different sets prevents debugging. Connect every VDD and VSS pin even though the 28-pin package has few power pins, and fit the VCAP/VDDCORE pin's recommended stabilizing capacitor per the Microchip datasheet - omitting it is the single most common cause of erratic operation on dsPIC33E boards.
Decouple each VDD pin with a 0.1 uF ceramic capacitor placed within a few millimeters of the pin, plus one bulk 4.7-10 uF capacitor per power rail. On through-hole SPDIP prototypes, keep the crystal (if used on OSC1/OSC2) leads as short as possible and place its load capacitors directly at the pins. Route PWM outputs away from analog sense lines feeding the ADC to prevent switching noise coupling into control-loop feedback.
Estimated: even at full 60 MIPS operation a dsPIC33EP in this class dissipates well under 0.5 W on a 3.3V rail, so the SPDIP package needs no heatsink; input values are typical core current on the order of tens of mA at 3.3 V. The binding constraint is ambient, not the package: the E grade permits up to +125C, but verify your enclosure's worst-case ambient plus internal self-heating stays below that limit. Exact current figures must be taken from the datasheet Electrical Characteristics tables.
Compliance Information
AEC-Q100 automotive qualification confirmed by datasheets.com and globalspec distributor listings. RoHS/REACH/lead-free status not stated in the provided data - verify on Microchip's product page before export documentation.
