DSPIC33CK32MC102-I/2N - 100MHz DSC 32KB Flash | Microchip
MPN: DSPIC33CK32MC102-I/2N ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.95 | $0.95 |
| 10 | $0.82 | $8.20 |
| 100 | $0.71 | $71.00 |
| 500 | $0.68 | $340.00 |
| 1,000 | $0.64 | $640.00 |
DSPIC33CK32MC102-I/2N Overview
A Digital Signal Controller combines the computational throughput of a DSP with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC sits between general-purpose MCUs and dedicated DSPs, offering deterministic single-cycle multiply-accumulate (MAC) instructions for control-loop mathematics alongside real-time peripherals such as high-speed PWM and 12-bit ADCs.
Key features include DC-to-100 MIPS operation from a 3.0 V to 3.6 V supply over an industrial temperature range of -40C to +125C, integrated operational amplifiers and high-speed comparators, 12-bit ADCs, and advanced motor-control PWM peripherals. Program Flash ECC and fault-injection testing support functional-safety (FuSa) development.
Architecturally, the dsPIC33CK core is a modified Harvard, 16-bit pipeline processor with DSP-enhanced instructions, single-cycle MAC, and hardware divide support. The CIP (Core Independent Peripheral) philosophy allows ADC-triggered PWM updates with minimal CPU intervention, shortening control-loop latency in digital power and motor drive designs.
Typical applications include brushless DC and PMSM motor control, digital power supplies such as PFC and LLC converters, capacitive touch sensing, and advanced sensing and control systems in industrial and consumer equipment.
When designing, keep in mind the 3.0 V to 3.6 V operating window: 5 V systems require level translation or a regulator. Decouple VDD and AVDD carefully and use the internal LDO output capacitor per the manufacturer datasheet.
This page synthesizes distributor pricing from 11 sources, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK32MC102-I/2N — 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 DSPIC33CK32MC102-I/2N (same form factor and footprint) — differing in Operating Temperature, Core, ADC Resolution, Package, PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK32MC103-I/2N
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MC102-I/2N
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MC103-I/2N
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK32MC105-I/2N
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MC105-I/2N
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK32MC102-I/2N Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC |
| Maximum Clock Frequency | 100 MHz |
| Performance | DC to 100 MIPS |
| Program Flash Size | 32 KB with ECC |
| Data SRAM Size | 8 KB with MBIST |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C |
| Extended Temperature Performance | -40C to +150C, DC to 70 MIPS |
| ADC Resolution | 12-bit |
| Integrated Peripherals | Op Amps, Comparators, High-Speed PWM |
| Package | 28-UQFN (6x6 mm) |
| Mounting Type | Surface Mount |
| Architecture | Modified Harvard, 16-bit |
| Flash Test Features | ECC and Fault Injection testing |
| Safety Classification | Functional Safety (FuSa) capable |
| Program Memory Width | 24-bit |
DSPIC33CK32MC102-I/2N 28-uqfn (6x6 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK32MC102-I/2N (28-uqfn (6x6 mm) 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 DSPIC33CK32MC102-I/2N.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK32MC102-I/2N is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digital Power Supplies (PFC / LLC), Capacitive Touch Sensing, Advanced Sensing and Control, Battery Chargers and DC-DC Conversion, Industrial Embedded Control.
Brushless DC / PMSM Motor Control
The DSPIC33CK32MC102-I/2N fits BLDC and PMSM field-oriented control because its 100 MHz dsPIC33CK core executes FOC current-loop mathematics in single-cycle DSP MAC instructions, while on-chip op amps can amplify shunt-current sense signals without an external amplifier, saving BOM cost. The high-speed PWM peripheral generates complementary complementary outputs with dead-time insertion for three-phase inverters, and the 12-bit ADC can be triggered synchronously with the PWM center to sample current exactly at the midpoint of the low-side PWM on-time, minimizing switching noise in the measurement. Using the CIP architecture, ADC results update PWM duty cycles with little CPU latency. A 32 KB Flash budget comfortably holds a single-motor FOC stack; larger firmware should move to a 64 KB or 128 KB variant in the same footprint.
Recommended
Digital Power Supplies (PFC / LLC)
Digital power converters demand deterministic, fast control loops, and the DSPIC33CK32MC102-I/2N delivers with a 100 MHz core producing up to 100 MIPS and high-resolution PWM capable of fine duty-cycle adjustment for PFC and LLC topologies. The 12-bit ADC samples voltage and current feedback loops, and the on-chip comparators can provide fast cycle-by-cycle overcurrent protection entirely in hardware, independent of firmware execution time. The 3.0 V to 3.6 V supply and -40C to +125C industrial rating suit switch-mode power supplies operating in hot enclosures. Because control laws are implemented in firmware, soft-start, burst mode, and nonlinear gain scheduling are straightforward. Flash ECC and fault-injection features help designs targeting safety-relevant power conversion in servers, telecom rectifiers, and industrial adapters.
Recommended
Capacitive Touch Sensing
Microchip explicitly lists touch as a target application for the dsPIC33CK 100 MHz family, and the DSPIC33CK32MC102-I/2N implements touch sensing via charge-transfer measurement on its remappable analog pins driven by firmware/CIP-based scan routines. The 100 MHz core performs the signal-processing burden - baseline tracking, filtering, and multitouch decoding - without external touch ICs, reducing BOM cost in appliance panels, keypads, and user interfaces. The integrated 12-bit ADC measures the touch-channel charge ramp with sufficient resolution for reliable thresholding, and the industrial -40C to +125C temperature range supports appliance environments near heat sources. With 32 KB Flash, touch decoding coexists with the main control firmware in a single chip, allowing combined touch plus motor-control or power-conversion designs in compact 28-pin packages.
Recommended
Advanced Sensing and Control
For sensor acquisition nodes, the DSPIC33CK32MC102-I/2N combines an on-chip op amp for signal conditioning, comparators for threshold events, and a 12-bit ADC for digitization, allowing a complete analog front end plus control logic in one 6x6 mm UQFN package. The DSP-enhanced core applies single-cycle MAC-based FIR/IIR filtering directly on sampled data, achieving high effective processing throughput for FFT-based or averaging algorithms at low power. The 8 KB SRAM with MBIST and Flash with ECC provide data integrity suitable for condition-monitoring systems. Operating from a tight 3.0 V to 3.6 V rail over -40C to +125C, the device serves factory automation sensors, pressure and flow transmitters, and industrial IoT endpoints where deterministic behavior and long-term availability from Microchip matter for maintenance planning.
Recommended
Battery Chargers and DC-DC Conversion
Smart battery chargers require synchronized ADC sampling of current and voltage, precision PWM control of the power stage, and fast fault protection - all of which the DSPIC33CK32MC102-I/2N provides. The high-speed PWM supports phase-shift and buck/boost control schemes with hardware dead-time insertion, while on-chip comparators implement cycle-limited current protection in hardware for safety. The 100 MHz core runs CC/CV charging state machines, coulomb-counting math, and communication protocols simultaneously with the control loop. Its 3.0 V to 3.6 V operating supply, industrial temperature rating, and 28-pin 6x6 mm footprint suit compact charger boards for power tools, e-bikes, and portable equipment. Flash ECC ensures firmware integrity across harsh charging environments with high EMI from the switching stage.
Recommended
Industrial Embedded Control
General industrial control - from pump and fan controllers to lighting ballasts and HVAC actuators - benefits from the DSPIC33CK32MC102-I/2N's blend of DSP performance and MCU peripherals. Remappable pins let designers route UART, SPI, PWM, and comparator functions to optimal physical locations on the 28-pin UQFN, simplifying PCB routing in dense panels. The -40C to +125C qualification covers control boxes mounted near motors or heaters, and 100 MIPS headroom executes PID loops and protocol stacks (CAN/UART via remappable peripherals) with margin. Functional-safety features such as Flash ECC, fault injection, and SRAM MBIST support designs where diagnostic coverage is increasingly demanded. As of 2026-09-23, the part is actively stocked at DigiKey, Mouser, and LCSC, supporting long production lifetimes.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK32MC102-I/2N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK32MC103-I/2N | DSPIC33CK64MC102-I/2N | DSPIC33CK64MC105-I/2N |
|---|---|---|---|---|
| Package | 28-UQFN (6x6 mm) | 28-UQFN (6x6 mm) - same | 28-UQFN (6x6 mm) - same | 28-UQFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) |
| Program Flash | 32 KB (ECC) | 64 KB (ECC) | 64 KB (ECC) | 128 KB (ECC) |
| Data SRAM | 8 KB (MBIST) | 8 KB (MBIST) | 8 KB (MBIST) | 8 KB (MBIST) |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| Analog Peripherals | Op amps, comparators, 12-bit ADC | Op amps, comparators, 12-bit ADC | Op amps, comparators, 12-bit ADC | Op amps, comparators, 12-bit ADC |
Key Differentiators
- Lowest-cost entry point of the 100 MHz dsPIC33CK family (vs DSPIC33CK32MC103-I/2N)
- Pin-compatible upgrade path without PCB respin (vs DSPIC33CK64MC105-I/2N)
- Integrated analog front end saves external components (vs DSPIC33CK256MP205-I/PT)
Design Notes
The device operates from a strict 3.0 V to 3.6 V rail - do not connect directly to 5 V systems. The internal LDO requires the specified capacitor on the VCAP/VDDCORE pin per the manufacturer datasheet; omitting or under-sizing this capacitor causes unstable core-supply operation and erratic resets. Decouple each VDD pin with 0.1 uF ceramics placed within 2 mm, and add 4.7-10 uF bulk near the supply entry. Estimated: at 100 MHz full-speed operation, core current is typically in the tens of mA range; verify exact figures in the datasheet electrical characteristics table before sizing the 3.3 V regulator.
Separate AVDD/AVSS from digital VDD/VSS with a ferrite bead or RC filter to preserve 12-bit ADC accuracy. Connect the analog ground to the digital ground at a single star point under the chip. Route ADC inputs away from PWM traces; the high-speed PWM edges carry fast dv/dt that couples into analog channels. The UQFN 6x6 mm package has a small exposed area per pin - use 4-6 mil trace widths with thermal relief vias on the ground pad to aid rework and solderability. Follow the Microchip layout guidelines in the datasheet PCB chapter.
Three frequent mistakes with the dsPIC33CK family: (1) exceeding Flash budget - 32 KB fills quickly with FOC plus communication firmware; if the linker reports overflow, a same-footprint 64 KB variant (DSPIC33CK64MC102-I/2N) avoids a PCB respin. (2) Missing MCLR pull-up and programming header - keep the ICSP interface on production boards for firmware updates. (3) Assuming remappable pins are universal - verify peripheral pin selection restrictions in the datasheet pin tables before committing the PCB layout, since some analog functions are only available on specific pins.
Compliance Information
Compliance statuses were not stated in the provided verified web data; confirm on the official Microchip product page or distributor environmental data sheets.