DSPIC33CK32MC103-E/M5 - 100MHz 16-bit DSC 32KB Flash | Microchip
MPN: DSPIC33CK32MC103-E/M5 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.2 | $22.00 |
| 100 | $1.85 | $185.00 |
| 500 | $1.55 | $775.00 |
| 1,000 | $1.25 | $1,250.00 |
DSPIC33CK32MC103-E/M5 Overview
A Digital Signal Controller combines the deterministic interrupt behavior and peripheral set of a microcontroller with the multiply-accumulate (MAC/DSP) engine of a digital signal processor. In the power-management hierarchy, the dsPIC33CK family sits between general-purpose MCUs and dedicated DSPs, targeting real-time control loops such as field-oriented control (FOC) of motors, digital power conversion, and advanced sensing.
Key features include 100 MIPS deterministic performance from the 16-bit dsPIC33C core, ECC-protected Flash for functional-safety designs, a 12-bit ADC capable of high sample rates for current and voltage sensing, three on-chip operational amplifiers that reduce external component count in current-shunt conditioning, and high-speed PWM peripherals with fine edge resolution for power converters. Four DMA channels offload the CPU in high-throughput sampling loops.
Architecturally, the single-core dsPIC33CK executes from zero-wait-state Flash at full speed with DSP instructions, supported by timers, comparators, and serial interfaces (UART, SPI, I2C) typical of the dsPIC33C platform. Low-power sleep and idle modes support battery-conscious designs.
Typical applications include brushless DC and PMSM motor control, digital power supplies (LLC, totem-pole PFC), and sensor signal acquisition in industrial, appliance, automotive-adjacent, and consumer equipment.
When designing with this device, budget the ADC sample loop against the 100 MHz instruction rate, and route op-amp inputs away from PWM switching noise; ICSP programming requires a matched PGECx/PGEDx pair.
This page adds distributor pricing, drop-in family alternatives, and practical design notes beyond the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK32MC103-E/M5 — 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 DSPIC33CK32MC103-E/M5 (same form factor and footprint) — differing in Package, ADC Resolution, Core, Operating Temperature, PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK32MC103-I/M5
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK32MC102-E/M5
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MC103-E/M5
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.31 / Unit
View Datasheet →DSPIC33CK64MC102-E/M5
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK32MC103T-E/M5
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK32MC103-E/M5 Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC |
| Maximum Clock Frequency | 100 MHz (100 MIPS) |
| Program Memory Size | 32 KB (32K x 8) Flash |
| RAM Size | 8 KB |
| ADC Resolution | 12 bit |
| On-chip Op Amps | 3 |
| PWM | High-speed PWM, fine edge resolution |
| DMA Channels | 4 |
| Timers | 3 |
| Serial Interfaces | UART, SPI, I2C |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 36-UQFN (5x5 mm), PQCC36 (JESD-30 S-PQCC-N36) |
| Mounting Type | Surface Mount |
| Program Memory Type | FLASH with ECC |
| Functional Safety | FuSa supported variant family |
| Technology | CMOS |
DSPIC33CK32MC103-E/M5 36-uqfn (5x5 mm), pqcc36 (jesd-30 s-pqcc-n36) Pin Configuration Guide
Pin configuration for DSPIC33CK32MC103-E/M5 (36-uqfn (5x5 mm), pqcc36 (jesd-30 s-pqcc-n36) 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 DSPIC33CK32MC103-E/M5.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK32MC103-E/M5 is suitable for 6 applications: BLDC/PMSM Motor Control (FOC), Digital Power Conversion, Sensor Signal Acquisition, Industrial Automation Control, Appliance and Consumer Motor Drives, Automotive-Adjacent and Functional Safety Designs.
BLDC/PMSM Motor Control (FOC)
The DSPIC33CK32MC103 fits brushless DC and PMSM field-oriented control because its 100 MHz deterministic core executes the current, speed, and position loop arithmetic within single PWM periods. The high-speed PWM generates complementary gate signals with fine edge resolution for a three-phase inverter, while the 12-bit ADC samples phase currents synchronized to PWM centers to avoid switching noise. Three on-chip op amps amplify shunt-resistor signals, removing external amplifier ICs and shortening the analog front end. Firmware size for a full FOC stack fits comfortably in the 32 KB ECC Flash with headroom for communication. Designers should synchronize ADC triggers to the PWM and validate loop timing at maximum load for stable torque output.
Recommended
Digital Power Conversion
For LLC converters, totem-pole PFC, and DC-DC stages, the DSPIC33CK32MC103 provides the high-resolution PWM edge control and fast 12-bit ADC sampling needed to regulate voltage and current at switching frequencies in the hundreds of kilohertz. The on-chip op amps condition shunt or current-transformer signals for the ADC, and comparators support fast cycle-by-cycle overcurrent protection independent of the CPU. The 100 MIPS core runs compensator calculations deterministically each switching cycle, avoiding jitter that degrades control-loop phase margin. ECC Flash protects firmware integrity in long-lifetime power systems. Keep analog sense routing away from gate-drive traces and use the DMA to stream ADC results without CPU intervention for minimal loop latency.
Recommended
Sensor Signal Acquisition
The DSPIC33CK32MC103 serves advanced sensing nodes where the 12-bit ADC, three op amps, and DSP MAC instructions form a compact measurement chain: amplifying weak transducer signals, sampling them at high rate, and applying digital filtering in firmware. The 4 DMA channels stream ADC results to RAM without CPU overhead, sustaining high sample throughput. Its extended -40C to +125C E-grade temperature rating suits sensing near heat sources such as motor windings, power stages, and industrial enclosures. UART, SPI, and I2C interfaces forward processed results to host controllers or cloud gateways. Calibrate offset and gain in firmware to exploit the ADC's full resolution, and keep the analog reference clean for repeatable measurements.
Recommended
Industrial Automation Control
In factory automation nodes, the DSPIC33CK32MC103 acts as a deterministic real-time controller bridging sensors, actuators, and higher-level communications. Its 100 MHz core handles control loops while UART, SPI, and I2C connect to drives, displays, and industrial transceivers. The extended temperature range supports panel-mounted electronics near motors and power electronics, and ECC Flash maintains code integrity in electrically noisy environments typical of industrial plants. The DSP engine accelerates filtering and transform computations used in condition-monitoring firmware. Developers should implement watchdog supervision and use the comparators for independent fault shutdown so that safety behavior does not depend solely on software execution timing.
Recommended
Appliance and Consumer Motor Drives
Home appliances - fans, pumps, compressors, and power tools - use the DSPIC33CK32MC103 to implement sensorless BLDC control at low system cost. The integrated op amps and 12-bit ADC eliminate the external analog front end, reducing BOM count, while the high-speed PWM drives single-shunt or three-shunt inverter topologies. Sensorless algorithms (back-EMF observers, sliding-mode estimators) benefit from the DSP MAC engine within the 100 MHz core, and 32 KB Flash holds the control firmware plus protection logic. Sleep and idle modes support standby power targets. For cost-optimized SKUs, the pin-compatible DSPIC33CK32MC102 with 16 KB Flash offers a firmware-size step-down on the identical PCB footprint.
Recommended
Automotive-Adjacent and Functional Safety Designs
The dsPIC33CK family is positioned by Microchip for functional-safety (FuSa) capable designs in automotive, industrial, consumer, and medical segments, and the ECC Flash of the DSPIC33CK32MC103 addresses single-bit memory fault detection. The E-grade -40C to +125C rating covers underhood-adjacent and high-power-density environments. Distributor data also identifies the tape-and-reel automotive-flow variant DSPIC33CK32MC103T-E/M5 for AEC-Q100-oriented programs. Typical uses include pump/fan control modules, actuator drivers, and sensor conditioning where deterministic behavior and memory integrity matter. Designers pursuing formal safety certification should consult Microchip's FuSa collateral and validate the safety manual against their target integrity level.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK32MC103-E/M5 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK32MC103-I/M5 | DSPIC33CK32MC102-E/M5 | DSPIC33CK64MC103-E/M5 | DSPIC33CK32MC103T-E/M5 |
|---|---|---|---|---|---|
| Package | 36-UQFN (5x5 mm) | 36-UQFN (5x5 mm) - same | 36-UQFN (5x5 mm) - same | 36-UQFN (5x5 mm) - same | 36-UQFN/PQCC36 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz (100 MIPS) | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 32 KB ECC | 32 KB ECC | 16 KB | 64 KB ECC | 32 KB ECC |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +125C |
| 12-bit ADC + Op Amps | Yes, 3 op amps | Yes, 3 op amps | Yes, 3 op amps | Yes, 3 op amps | Yes, 3 op amps |
Key Differentiators
- Extended temperature range for hot power-electronics environments (vs DSPIC33CK32MC103-I/M5)
- Double the Flash headroom within the identical footprint (vs DSPIC33CK32MC102-E/M5)
- Memory-optimized upgrade path without PCB respin (vs DSPIC33CK64MC103-E/M5)
Design Notes
Route the op-amp inputs and ADC sense traces away from high-speed PWM/gate-drive nets; the three on-chip op amps amplify shunt signals at millivolt levels where switching coupling causes visible noise in current loops. Place shunt resistors close to the device, use kelvin sensing directly at the op-amp input pins, and keep the analog ground return separate from power-switching return until a single-point tie.
ICSP programming requires a matched PGECx/PGEDx pair: per Northern Software documentation, if PGEC2 is used for ICSPCLK then ICSPDAT must connect to PGED2 - never mix pairs from different channels. Also confirm that the programming pins are not load-sharing with application circuitry during programming, or add isolation resistors.
Estimated: budget VDD decoupling with at least one 0.1 uF ceramic per supply pin pair plus bulk capacitance near the 36-UQFN; the exposed pad should be soldered to a grounded thermal array for both mechanical attach and heat spreading at 100 MHz operation in a -40C to +125C ambient. Verify final supply pin count and current figures against the manufacturer datasheet electrical section.
Compliance Information
The AEC-Q100-oriented automotive flow applies to the T-suffix variant (DSPIC33CK32MC103T-E/M5 per Microchip USA distributor data); compliance certificates for this specific MPN were not present in the provided web data.
