DSPIC33EP128MC202-H/SO - 16-bit DSC 70 MIPS 128KB Flash | Microchip
MPN: DSPIC33EP128MC202-H/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.18 | $41.80 |
| 100 | $3.74 | $374.00 |
| 500 | $3.35 | $1,675.00 |
| 1,000 | $2.98 | $2,980.00 |
DSPIC33EP128MC202-H/SO Overview
A digital signal controller combines the computational strengths of a microcontroller (MCU) with the math acceleration of a digital signal processor (DSP) in a single chip. In the semiconductor hierarchy, the DSC sits between general-purpose MCUs and dedicated DSPs: it retains MCU-style peripherals, interrupts and flash memory while adding single-cycle MAC instructions, hardware divide and high-resolution PWM modules. This makes DSCs the default choice for closed-loop control systems where both fast arithmetic and rich peripheral integration are needed.
Key features of the DSPIC33EP128MC202-H/SO include the 16-bit modified Harvard dsPIC33E core running up to 70 MIPS, AEC-Q100 qualification for automotive environments, a high-speed 12-bit ADC (1.1 Msps in 10-bit mode with four sample-and-hold circuits, or 500 ksps in 12-bit mode), and up to three comparators with direct ADC connection. The device integrates 5 timers, 4 DMA channels and 3 external interrupts, with six analog inputs available on 28-pin members of the family.
Architecturally, the dsPIC33E core uses a pipelined 16-bit datapath with DSP instruction extensions, and the high-speed PWM module with flexible trigger sources is the defining peripheral of the MC (Motor Control) sub-family, distinguishing it from the GP502 general-purpose variant. Independent ADC trigger sources allow tightly synchronized current and voltage sampling inside a PWM period, which is essential for field-oriented motor control and digital power converters.
Typical applications include precision motor control (BLDC, PMSM, stepper), switch-mode power supplies and digital lighting, automotive auxiliary systems benefiting from AEC-Q100 qualification, and general embedded control where DSP math is required. The 28-pin SOIC footprint suits cost- and space-conscious control boards.
Design consideration: the H temperature suffix denotes harsh-environment operation, and the 3.3V supply requires level translation if interfacing to 5V peripherals; place ADC sampling around PWM edges using the independent trigger sources for best noise performance.
This page synthesizes distributor pricing, drop-in alternatives within the same 28-SOIC footprint, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP128MC202-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 DSPIC33EP128MC202-H/SO (same form factor and footprint) — differing in Package, Operating Temperature, ADC Resolution, Core, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128MC202-I/SO
✅ Drop-In✓ In Stock
$3.92 / Unit
View Datasheet →DSPIC33EP256MC202-H/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.51 / Unit
View Datasheet →DSPIC33EP64MC202-H/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128GP502-H/SO
✅ Drop-In✓ In Stock
$3.36 / Unit
View Datasheet →DSPIC33EP128MC202-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP32MC202-H/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MC202-H/SO Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC33E DSC core |
| Performance | 70 MIPS (dsPIC DSC core) |
| Maximum Clock Frequency | 60 MHz |
| Program Memory (Flash) | 128KB (43K x 24) |
| RAM | 16KB |
| Supply Voltage | 3.3 V |
| ADC Resolution | 10-bit / 12-bit |
| ADC Sampling Rate | 1.1 Msps (10-bit, 4 S&H) / 500 ksps (12-bit, 1 S&H) |
| Timers | 5 |
| DMA Channels | 4 |
| External Interrupts | 3 |
| Comparators | Up to 3 with direct ADC connection |
| Analog Inputs (28-pin) | 6 |
| Package | 28-SOIC (0.295in, 7.50mm width) |
| Mounting Type | Surface Mount |
| Qualification | Automotive, AEC-Q100 |
DSPIC33EP128MC202-H/SO 28-soic (0.295in, 7.50mm width) Pin Configuration Guide
Pin configuration for DSPIC33EP128MC202-H/SO (28-soic (0.295in, 7.50mm width) 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 DSPIC33EP128MC202-H/SO.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128MC202-H/SO is suitable for 6 applications: Precision BLDC/PMSM Motor Control, Digital Power Supplies and Converters, Automotive Body and Auxiliary Electronics, Industrial Sensor Processing and Control, Smart Lighting and Electronic Ballasts, Embedded General-Purpose Control with DSP Needs.
Precision BLDC/PMSM Motor Control
The DSPIC33EP128MC202-H/SO is purpose-built for field-oriented control (FOC) of brushless DC and permanent-magnet synchronous motors: its 70 MIPS dsPIC33E core executes Clarke/Park transforms and PI current loops with single-cycle MAC instructions, while the MC-variant high-speed PWM generates complementary outputs with hardware dead-time. The 12-bit 500 ksps ADC samples phase currents via independent PWM-triggered sources so conversions land exactly at the PWM center, eliminating switching-noise corruption. In a typical FOC loop the controller closes two current loops and one speed loop at 10-20 kHz PWM, well within its arithmetic budget. The AEC-Q100 H grade makes it suitable for automotive auxiliary motors such as pumps, fans and actuators.
Recommended
Digital Power Supplies and Converters
In digitally controlled AC-DC and DC-DC converters, the DSPIC33EP128MC202-H/SO replaces analog compensation networks with firmware: the 70 MIPS core runs voltage- and current-mode compensators while the high-speed PWM module provides programmable resolution, dead-time and fault trip inputs. The three comparators with direct ADC connection implement cycle-by-cycle overcurrent limiting in hardware, protecting the power stage without software latency. The 1.1 Msps ADC mode with four sample-and-hold circuits can sample output voltage, input voltage and current simultaneously. Its AEC-Q100 qualification also allows use in automotive onboard chargers and auxiliary power modules where quality documentation is mandatory.
Recommended
Automotive Body and Auxiliary Electronics
Because the DSPIC33EP128MC202-H/SO is AEC-Q100 qualified and operates from a 3.3V supply suited to automotive power trees, it fits body-control functions such as LED headlamp drivers, wiper and window-lift control, and small pump control. The MC-family PWM drives LED strings or H-bridges with precise dimming, the 12-bit ADC monitors diagnostic feedback, and the CAN-capable serial peripherals integrate with in-vehicle networks through an external transceiver. The H temperature grade covers harsh under-hood ambient conditions. Compared with generic MCUs, the integrated DSP math also enables sensorless motor algorithms, removing Hall sensors from low-cost automotive actuators.
Recommended
Industrial Sensor Processing and Control
Industrial nodes benefit from the DSPIC33EP128MC202-H/SO's combination of DSP arithmetic and control peripherals: FFT-based vibration analysis, RMS metering and digital filtering run on the 16-bit core, while 5 timers and 4 DMA channels offload periodic sampling from the CPU. The 12-bit 500 ksps ADC captures sensor signals with flexible trigger sources, and up to three comparators implement hardware threshold alarms. With 128KB Flash, protocol stacks plus application logic fit comfortably, and the 28-SOIC footprint suits DIN-rail and compact I/O modules. The 3.3V logic level simplifies interfacing with modern sensors, isolated transceivers and industrial communication ICs.
Recommended
Smart Lighting and Electronic Ballasts
Digital lighting applications use the DSPIC33EP128MC202-H/SO's high-speed PWM to drive LED strings, HID ballasts and dimmable drivers with precise phase-cut or constant-current control. The MC-family PWM offers complementary outputs with dead-time for half-bridge topologies, and the 12-bit ADC closes current loops for flicker-free constant-current LED drive. Its DSP capability implements power-metering and power-factor-correction loops in firmware, meeting efficiency requirements without additional analog circuitry. Six analog inputs on the 28-pin device cover voltage, current and temperature feedback simultaneously, and the AEC-Q100 H grade supports automotive interior and exterior lighting modules.
Recommended
Embedded General-Purpose Control with DSP Needs
For general embedded products that occasionally need heavy math - audio effects, UPS control, battery chargers, medical pump control - the DSPIC33EP128MC202-H/SO avoids a two-chip MCU-plus-DSP solution. The 70 MIPS core handles MAC-heavy algorithms while retaining familiar MCU peripherals: 5 timers, UART/SPI/I2C serial ports, 3 external interrupts and 4 DMA channels. The 28-SOIC package keeps board area small, and the 128KB Flash accommodates bootloader plus application firmware with room for over-the-air updates. Pin-compatible family members (32KB to 256KB) allow one PCB to scale across product tiers, reducing inventory and qualification effort across a product line.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128MC202-H/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128MC202-I/SO | DSPIC33EP256MC202-H/SO | DSPIC33EP64MC202-H/SO | DSPIC33EP128GP502-H/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 Performance | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz |
| Flash Memory | 128KB (43K x 24) | 128KB | 256KB | 64KB | 128KB |
| RAM | 16KB | 16KB | 16KB | 16KB | 16KB |
| Peripheral Family | MC (Motor Control, high-speed PWM) | MC - same | MC - same | MC - same | GP (general purpose) |
| Temperature/Quality Grade | H (harsh environment, AEC-Q100) | I (industrial) | H (harsh, AEC-Q100) | H (harsh, AEC-Q100) | H (harsh, AEC-Q100) |
Key Differentiators
- AEC-Q100 automotive qualification in 28-SOIC (vs DSPIC33EP128MC202-I/SO)
- Motor-control high-speed PWM peripheral set (vs DSPIC33EP128GP502-H/SO)
- 128KB Flash memory density (vs DSPIC33EP64MC202-H/SO)
Design Notes
The DSPIC33EP128MC202-H/SO runs from a single 3.3V rail. In motor-control or digital-power boards with large PWM switching transients, place a 0.1uF ceramic capacitor on every VDD/VSS pin pair as close to the package as possible, plus a 4.7-10uF bulk capacitor nearby. Keep the analog AVDD supplied through an RC or ferrite filter from the digital rail so the 12-bit ADC achieves its 500 ksps effective-noise performance rather than ingesting ground bounce from the PWM stage.
Use the independent ADC trigger sources to sample phase currents at the center of the PWM on-time; this averages out switching ripple and yields clean current feedback for FOC loops. Configure the fault inputs of the high-speed PWM module to trip cycle-by-cycle on comparator overcurrent events in hardware rather than relying on an ADC interrupt service routine - software latency on a 70 MIPS core can be too slow for hard-switching fault protection in high-current stages.
The H grade is the AEC-Q100 automotive suffix; do not substitute the cheaper I grade in automotive programs without customer-approved deviation. Also note the datasheet covers the entire dsPIC33EP MC20X/50X family (526 pages), so confirm 28-pin-specific limits (six analog inputs) when porting code from 64-pin siblings. When migrating from PIC24E/dsPIC30F parts, verify oscillator configuration registers - PLL settings differ between families and can cause silent clock failure.
Compliance Information
AEC-Q100 qualification for automotive applications stated in Hotenda and Microchip product data. RoHS/REACH status not stated in the provided verified data.
