DSPIC33CK32MC102-E/2N - 16-bit 100MHz DSC, 32KB Flash | Microchip
MPN: DSPIC33CK32MC102-E/2N ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
DSPIC33CK32MC102-E/2N Overview
A Digital Signal Controller combines the compute capability of a digital signal processor with the peripheral integration and interrupt architecture of a microcontroller. Within the embedded control hierarchy, the DSC sits between general-purpose MCUs and dedicated DSPs, making the dsPIC33CK series a middle path for real-time control loops that need math acceleration plus rich analog peripherals on one die.
Key differentiating features include a single 100 MHz dsPIC DSC core with DSP instruction acceleration, a high-speed 12-bit ADC, three integrated operational amplifiers, one comparator, high-speed PWM modules, and Functional Safety (FuSa) support. The on-chip op amps can buffer current-sense signals directly, reducing external component count in motor-drive designs.
Technically, the dsPIC33CK32MC102 integrates an instruction cache that reduces fetch latency and helps maintain deterministic loop timing at 100 MHz. Program Flash features ECC, and the Data SRAM includes Memory Built-In Self-Test (MBIST), supporting safety-oriented architectures per the Microchip FuSa collateral for the dsPIC33C family.
Typical applications span brushless DC and PMSM motor control (field-oriented control), digital power supplies such as totem-pole PFC and LLC converters, and advanced sensing including touch and current-sensing front ends where the integrated 12-bit ADC and op amps are decisive.
For design, note the tight 3.0V to 3.6V supply window: decouple each VDD pin with 0.1uF ceramics and plan analog/digital ground partitioning around the ADC for best noise performance.
This page synthesizes distributor inventory signals, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with pricing tiers and availability stated as of 2026-09-23.
Drop-in alternatives for DSPIC33CK32MC102-E/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-E/2N (same form factor and footprint) — differing in ADC Resolution, Core, Operating Temperature, Architecture, CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK32MC102-I/2N
✅ Drop-In✓ In Stock
$0.64 / Unit
View Datasheet →DSPIC33CK64MC102-E/2N
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.68 / Unit
View Datasheet →DSPIC33CK32MC103-E/2N
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MC103-E/2N
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK32MP102-E/2N
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK32MC102-E/2N Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC, 1 core |
| CPU Speed | 100 MHz (100 MIPS) |
| Program Memory (Flash) | 32KB (32K x 8) with ECC |
| Data RAM | 8KB SRAM with MBIST |
| Supply Voltage | 3 V to 3.6 V |
| Operating Temperature | -40C to +125C (extended, E grade) |
| Package | 28-UQFN (6x6 mm) |
| Mounting Type | Surface Mount |
| ADC Resolution | 12-bit (high-speed ADC) |
| Operational Amplifiers | 3 integrated op amps |
| Comparators | 1 |
| PWM | High-speed PWM |
| Qualification | Automotive, AEC-Q100, Functional Safety (FuSa) |
| RoHS | Yes |
| HTS Code | 8542310020 |
| ECCN | 3A991.a.2 |
| Country of Origin | TH (Thailand) |
| Standard Pack Quantity | 61 (Tube) |
DSPIC33CK32MC102-E/2N 28-uqfn (6x6 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK32MC102-E/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-E/2N.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK32MC102-E/2N is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digital Power Conversion (PFC / LLC), Current-Sensing Analog Front End, Automotive Body and Auxiliary Control, Touch Sensing and HMI, Industrial Lighting and LED Drivers.
Brushless DC / PMSM Motor Control
The DSPIC33CK32MC102-E/2N fits field-oriented control (FOC) drives because its 100 MHz DSP core executes the current-loop PI mathematics and Clarke/Park transforms with deterministic timing, while the 12-bit high-speed ADC samples phase currents synchronized to the PWM center. The three integrated op amps buffer low-side shunt or in-line current-sense signals without external amplifier ICs, cutting BOM cost and offset error. Placed as the single controller driving a three-phase gate-driver stage over the high-speed PWM peripherals, it supports space-vector modulation at tens of kHz switching frequencies; the E temperature grade and AEC-Q100 qualification suit automotive pump, fan, and traction-auxiliary motors where +125C ambient excursions occur.
Recommended
Digital Power Conversion (PFC / LLC)
In totem-pole PFC and LLC converter control, the DSPIC33CK32MC102-E/2N offers the precise timing needed for phase-shifted and complementary PWM with nanosecond-resolution edges, fast loop execution at 100 MIPS, and ADC triggering locked to switching instants to avoid switching-noise corruption of samples. The on-chip comparator provides hardware cycle-by-cycle overcurrent protection with latency far below any software loop, and the integrated op amps condition current-transformer or shunt signals. Unlike analog controllers, firmware enables adaptive mode switching between burst and continuous conduction; the trade-off is that firmware certification effort replaces fixed analog behavior, which the FuSa features and ECC Flash help address in safety-relevant power stages.
Recommended
Current-Sensing Analog Front End
The DSPIC33CK32MC102-E/2N consolidates a complete current-sense chain: three operational amplifiers can be configured as non-inverting or differential amplifiers on shunt resistors, feeding the 12-bit high-speed ADC with programmable sample times down to the sub-microsecond range. This integration removes external precision op amps and their offset, drift, and layout parasitics, improving accuracy in compact designs. Typical uses include DC fast-charge sensing, battery pack current monitoring, and inverter phase-current acquisition where the ADC result is processed on-chip without crossing a bus. Performance consideration: with a 3.0V to 3.6V supply, the input common-mode range of the op amps constrains shunt placement to the low side or requires a dedicated current-sense amplifier for high-side measurement.
Recommended
Automotive Body and Auxiliary Control
With AEC-Q100 qualification, Functional Safety (FuSa) support, ECC on program Flash, and MBIST on SRAM, the DSPIC33CK32MC102-E/2N addresses automotive auxiliary functions such as window lifter control, HVAC blower drives, valve actuation, and lighting ballasts. The -40C to +125C E-grade temperature rating covers under-hood-adjacent modules, while the 100 MHz core leaves headroom for both the control loop and LIN/CAN stack. The high-speed PWM drives H-bridge or half-bridge stages with dead-time control, and the integrated comparator adds a hardware safety trip. Design consideration: functional-safety metrics must be completed at system level using Microchip's FuSa collateral; the silicon features enable, but do not by themselves certify, an ASIL-rated design.
Recommended
Touch Sensing and HMI
Microchip positions the dsPIC33CK family for advanced sensing including capacitive touch. The DSPIC33CK32MC102-E/2N runs the mTouch acquisition algorithm on its 100 MHz core using the ADC and charge-sharing measurement across GPIO, supporting buttons, sliders, and wheels alongside the primary control function in one chip - valuable in appliance and industrial HMI panels where a separate touch controller would otherwise be needed. Typical integration pairs the DSC with LED or segment drive for user feedback and a UART-driven display module. Performance consideration: touch scanning competes with the main control loop for ADC time, so scan scheduling should use the PWM-triggered ADC slots to keep both the control loop jitter and touch sensitivity stable across the -40C to +125C operating range.
Recommended
Industrial Lighting and LED Drivers
The DSPIC33CK32MC102-E/2N implements digital LED driver control with its high-speed PWM generating dimming and phase-cut waveforms, while the 12-bit ADC monitors output current and the comparator enforces fast overcurrent limits - a common architecture for tunable-white, RGBW, and high-bay industrial luminaires with DALI or PWM dimming input. The 100 MHz core handles closed-loop current regulation plus communication in a single chip at the -40C to +125C range that enclosed fixtures demand. Unlike fixed-frequency analog LED controllers, firmware enables hybrid dimming (CCM plus burst) for deep dimming ratios without visible flicker. Design consideration: ensure PWM resolution at the chosen switching frequency meets flicker standards, and use the op amps to amplify low-value sense resistors for efficiency.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK32MC102-E/2N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK32MC102-I/2N | DSPIC33CK64MC102-E/2N | DSPIC33CK32MC103-E/2N | DSPIC33CK32MP102-E/2N |
|---|---|---|---|---|---|
| Package | 28-UQFN (6x6 mm) | 28-UQFN (6x6 mm) - same | 28-UQFN (6x6 mm) - same | 28-UQFN (6x6 mm) - same | 28-UQFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
Key Differentiators
- Extended +125C temperature rating (vs DSPIC33CK32MC102-I/2N)
- Integrated analog front end (vs DSPIC33CK64MC102-E/2N)
- Compact 6x6 mm UQFN footprint (vs DSPIC33CK32MC102-E/SS)
Design Notes
The dsPIC33CK32MC102 operates from a narrow 3.0V to 3.6V window per the manufacturer datasheet. Supply each VDD pin with a 0.1uF ceramic capacitor placed within 2 mm of the pin, plus one bulk 4.7uF to 10uF capacitor per rail. When powering from a 5V bus, an LDO with adequate dropout margin keeps transient excursions below the 3.6V ceiling; verify load-transient response when the ADC and core switch simultaneously during PWM-triggered sampling bursts.
The 28-UQFN (6x6 mm) uses a 0.5 mm pitch with an exposed pad that must be soldered to a grounded via array for both thermal relief and a low-inductance ground return. Separate the analog ground region under the ADC and op-amp pins from PWM switching currents, joining at a single star point beneath the exposed pad. Route oscillator and ADC reference traces short and shield them from gate-drive loops. Estimated: thermal resistance figures should be taken from the current manufacturer datasheet thermal table for your board stackup rather than assumed.
Do not confuse package suffixes: the /2N is 28-UQFN and the /SS is 28-SSOP - they are not footprint-compatible despite identical silicon. Second, the E grade's +125C rating applies at 100 MIPS operation only down to the datasheet derating boundary; check the operating-condition table if your ambient approaches the limit. Third, when substituting the I-grade part for the E-grade part in a supply shortage, re-verify worst-case junction temperature in the enclosure before release.
Compliance Information
RoHS: Yes per OnlineComponents.com attribute data; HTS 8542310020; ECCN 3A991.a.2; COO Thailand. AEC-Q100 and Functional Safety (FuSa) qualification per DigiKey/Mouser listings.
