DSPIC33CK32MC102-I/SS - 100 MIPS 16-bit DSC 32KB Flash | Microchip
MPN: DSPIC33CK32MC102-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.64 | $1.64 |
| 10 | $1.52 | $15.20 |
| 100 | $1.38 | $138.00 |
| 500 | $1.24 | $620.00 |
| 1,000 | $1.1 | $1,100.00 |
DSPIC33CK32MC102-I/SS Overview
A Digital Signal Controller combines the deterministic interrupt latency and peripheral-rich architecture of a microcontroller with the single-cycle multiply-accumulate (MAC) hardware of a DSP. Within the power-management hierarchy, the dsPIC33CK family sits in the embedded control space alongside 16-bit MCUs and DSPs, purpose-built for closed-loop real-time control such as Field-Oriented Control (FOC) of motors, digital power conversion, and precision sensing.
Key features of the DSPIC33CK32MC102 include a modified Harvard architecture dsPIC33CK DSC core running DC to 100 MIPS at 3.0 V to 3.6 V, high-resolution PWM for converter and inverter control, a 12-bit ADC, integrated analog op amps and comparators, and Flash with ECC support. These peripherals allow a single chip to close the current, voltage, and speed control loops of a digitally controlled power stage.
Architecturally, the dsPIC33CK core uses separate program and data buses so instruction fetch and data access occur simultaneously, and dedicated DSP instructions execute in a single cycle. Per data retrieved from distributor listings, the device operates from a 3.0 V to 3.6 V supply, is fabricated in CMOS, and supports fixed-point arithmetic formats.
Typical applications include brushless DC and PMSM motor control, AC-DC and DC-DC digital power supplies, power-factor-correction stages, and sensor signal conditioning where the on-chip op amps front-end the 12-bit ADC.
Design consideration: at 100 MIPS the core is clock-intensive, so budget Flash wait states and verify the 3.0 V to 3.6 V supply window before reusing a 3.3 V rail design from slower parts.
This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33CK32MC102-I/SS — 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/SS (same form factor and footprint) — differing in Operating Temperature, Package, PWM, DMA Channels, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK64MC102-I/SS
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →DSPIC33CK128MP202-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK32MC101-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MC102T-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.18 / Unit
View Datasheet →DSPIC33CK32MC102-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33CK DSC, modified Harvard |
| Maximum Clock Frequency | 64 MHz (100 MIPS performance per Microchip family data) |
| Program Memory (Flash) | 32 KB |
| Data SRAM | 8 KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C |
| ADC Resolution | 12-bit |
| Integrated Analog | Op amps and comparators |
| PWM | High-resolution PWM |
| Package | 28-SSOP |
| Mounting Type | Surface Mount |
| Technology | CMOS |
| Arithmetic Format | Fixed-point |
| Flash ECC | Supported (family feature) |
| Typical Applications | Motor control, advanced sensing and control, touch, power conversion |
DSPIC33CK32MC102-I/SS 28-ssop Pin Configuration Guide
Pin configuration for DSPIC33CK32MC102-I/SS (28-ssop 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/SS.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK32MC102-I/SS is suitable for 6 applications: BLDC/PMSM Motor Control (FOC), Digital Power Conversion (AC-DC / DC-DC), Precision Sensor Signal Conditioning, Power Factor Correction (PFC) Stages, Touch Sensing and HMI, Embedded Industrial Control and Automation.
BLDC/PMSM Motor Control (FOC)
The DSPIC33CK32MC102-I/SS is purpose-built for Field-Oriented Control of brushless DC and permanent-magnet synchronous motors. Its 100 MIPS deterministic core executes current, speed, and position loop compensation every PWM cycle, while single-cycle DSP MAC instructions accelerate the Clarke and Park transforms. The high-resolution PWM delivers fine duty-cycle granularity for low torque ripple, and the 12-bit ADC with on-chip op amps conditions phase-current shunt signals without external amplifiers. In a typical topology, phase currents are sampled by the ADC synchronized to PWM centers, with the DSC closing the FOC loop at tens of kHz. The quantified benefit is sub-microsecond control-loop latency and deterministic interrupt behavior, unattainable on generic MCUs with variable latency.
Recommended
Digital Power Conversion (AC-DC / DC-DC)
For digitally controlled power supplies, the DSPIC33CK32MC102-I/SS provides the high-resolution PWM and fast 12-bit ADC needed to regulate buck, boost, LLC, and PFC stages with tight tolerance. The DSC closes voltage- and current-mode loops within each switching period at 100 MIPS, and the on-chip comparators implement fast cycle-by-cycle current limiting in hardware, independent of firmware. A common arrangement pairs the PWM outputs with a gate driver feeding the power stage, while the ADC samples output voltage and inductor current per cycle. The result is programmable loop compensation and adaptive dead-time control, enabling higher efficiency and transient response than fixed analog controllers, with firmware-updatable control laws for product variants.
Recommended
Precision Sensor Signal Conditioning
The integrated op amps and 12-bit ADC of the DSPIC33CK32MC102-I/SS let designers condition and digitize sensor signals entirely on-chip. Analog outputs from pressure, current, or temperature sensors connect to the op amp inputs, whose gain configuration feeds the ADC directly, eliminating discrete amplifier ICs and board area. DSP instructions then apply digital filtering, calibration, and linearization at 100 MIPS. Because the DSC runs from a 3.0 V to 3.6 V rail with -40C to +125C industrial rating, it suits harsh-environment sensing nodes. The key performance consideration is that ADC sampling can be synchronized to the PWM timer, letting designers sample at low-noise instants and reduce ripple-induced measurement error in switching systems.
Recommended
Power Factor Correction (PFC) Stages
In active PFC front-ends, the DSPIC33CK32MC102-I/SS implements average-current-mode control with its high-resolution PWM and fast analog comparators. The 100 MIPS core executes the outer voltage loop and inner current loop every switching cycle, shaping input current to follow the rectified line voltage for power factors above 0.99. The on-chip 12-bit ADC samples input current and bus voltage synchronized to the PWM period, while hardware comparators provide instantaneous overcurrent protection. Because control parameters are firmware-defined, a single hardware design can adapt to different power levels and line standards (universal AC input), and the DSC can add housekeeping functions such as inrush management and fault logging without additional components.
Recommended
Touch Sensing and HMI
Microchip lists touch among the target applications of the dsPIC33CK MC10x family, and the DSPIC33CK32MC102-I/SS supports capacitive touch sensing using its 12-bit ADC and charge-transfer measurement routines executed by the 100 MIPS core. A typical design multiplexes touch pads through the ADC channels, with the DSC performing baseline tracking and debounce in software at deterministic timing. Because the DSC also provides high-resolution PWM and op amps, one chip can drive a touch HMI plus a backlight or small motor actuator, reducing bill-of-materials count in appliance and industrial panel designs. The industrial -40C to +125C rating permits use in environments where dedicated consumer touch controllers would exceed their specification.
Recommended
Embedded Industrial Control and Automation
As a 16-bit DSC with deterministic real-time behavior, the DSPIC33CK32MC102-I/SS serves as the control element in industrial automation nodes: pump and fan controllers, lighting ballasts, solenoid drivers, and small motion systems. The 100 MIPS core handles closed-loop regulation while its peripherals handle PWM generation, ADC-based feedback, and comparator-based protection autonomously, keeping firmware cycles free for communication and sequencing. Operation from 3.0 V to 3.6 V with -40C to +125C rating fits factory-floor conditions, and the 32 KB Flash accommodates compact control-plus-communications firmware. Flash with ECC (family feature) improves reliability in electrically noisy industrial settings where uncorrected bit errors could corrupt control code.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK32MC102-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK64MC102-I/SS | DSPIC33CK128MP202-I/SS | DSPIC33CK32MC101-I/SS |
|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 32 KB | 64 KB | 128 KB | 32 KB |
| Core Performance | Up to 100 MIPS | Up to 100 MIPS | Up to 100 MIPS | Up to 100 MIPS |
| 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 |
| Peripheral Set | 12-bit ADC, op amps, comparators, HR PWM | Same as this product | Same family, MP-series routing - verify pin map | Reduced analog configuration - verify |
Key Differentiators
- Lowest-cost entry point into the 100 MIPS dsPIC33CK family (vs DSPIC33CK128MP202-I/SS)
- Integrated analog front-end (op amps + comparators + 12-bit ADC) (vs DSPIC33CK32MC101-I/SS)
- Honest trade-off: limited code headroom (vs DSPIC33CK64MC102-I/SS)
Design Notes
The DSPIC33CK32MC102-I/SS requires a 3.0 V to 3.6 V supply; do not reuse a 5 V-tolerant legacy dsPIC30F rail design. Place a 0.1 uF ceramic decoupling capacitor at each VDD/VSS pin pair as close to the package as possible, plus bulk capacitance near the 28-SSOP. When the on-chip op amps drive heavy ADC sampling loads, analog noise couples into the digital core - consider separating analog and digital ground returns at a single point under the IC.
In motor-control and digital-power layouts, route high-resolution PWM outputs away from the ADC input traces; the fine pulse edges of the HR PWM can couple switching noise into the 12-bit ADC and the on-chip op amp inputs. Keep the analog sensing traces (phase-current shunt feeds) short and guarded by ground. The 28-SSOP lead pitch allows straightforward routing on a two-layer board, but a solid ground plane is strongly recommended for designs above roughly 50 kHz switching frequency.
The family datasheet notes core-performance derating with temperature for extended-range variants (-40C to +150C parts run DC to 70 MIPS); confirm your thermal environment supports the target MIPS at your maximum ambient. Also verify peripheral-to-pin mapping before substituting family members: MC10x and MP2x devices share a package but differ in which peripherals bond to which pins. Program the configuration words for the exact op amp routing scheme intended; defaults differ between family variants.
Compliance Information
Compliance status not stated in provided verified data; confirm on the Microchip product page or with the distributor before procurement.
