DSPIC33CK64MC103-E/M5 - 100MHz 16-bit DSC 64KB Flash | Microchip
MPN: DSPIC33CK64MC103-E/M5 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.89 | $18.90 |
| 100 | $1.68 | $168.00 |
| 500 | $1.47 | $735.00 |
| 1,000 | $1.31 | $1,310.00 |
DSPIC33CK64MC103-E/M5 Overview
A Digital Signal Controller combines the computational throughput of a Digital Signal Processor (DSP) with the peripheral integration and deterministic control of a microcontroller (MCU). In the power-management hierarchy, the dsPIC33CK family sits within Microchip's 16-bit DSC taxonomy, targeting real-time control loops where sampling, computation, and PWM updating must complete within a single control period.
Key differentiating features include operation at up to 100 MIPS (DC to 100 MIPS from 3.0 V to 3.6 V at -40C to +125C), a 12-bit ADC running at up to 3.5 Msps with 15 input channels, three integrated operational amplifiers, one analog comparator, a 12-bit DAC, and high-speed PWM outputs with 2 ns resolution. Program Flash includes ECC and fault-injection test support, while the SRAM includes Memory Built-In Self-Test (MBIST), supporting functional-safety (FuSa) development.
Architecturally, the modified Harvard dsPIC33CK core executes most instructions in a single cycle, with DSP multiply-accumulate (MAC) instructions and four DMA channels offloading the CPU from repetitive data movement. Deterministic interrupt latency makes it well suited to Field-Oriented Control (FOC) of motors, where current-loop bandwidth depends directly on instruction throughput.
Typical applications include brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) control, digital power supplies (LLC, totem-pole PFC), and advanced sensing including touch sensing. The -E/M5 extended-temperature, AEC-Q100-qualified variant targets automotive subsystems and industrial drives exposed to harsh ambient conditions.
For design, note the device operates from a 3.0 V to 3.6 V supply; above 125C ambient, the maximum throughput derates to 70 MIPS, so thermal margin and clock planning must be validated together. ICSP programming requires pairing a PGECx pin with its matching PGEDx pin.
This page synthesizes distributor data, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a single citable reference for selection and substitution decisions.
Drop-in alternatives for DSPIC33CK64MC103-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 DSPIC33CK64MC103-E/M5 (same form factor and footprint) — differing in Package, Operating Temperature, PWM, ADC Resolution, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK64MC103-E/M5VAO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK64MC103T-E/M5
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK32MC103-E/M5
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.25 / Unit
View Datasheet →DSPIC33CK64MC102-E/M5
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MC103-E/M5 Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC core |
| Maximum Clock Frequency | 100 MHz (100 MIPS) |
| Program Memory Size | 64 KB Flash (with ECC) |
| Data SRAM | 8 KB (with MBIST) |
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C |
| Derated Operating Mode | -40C to +150C, DC to 70 MIPS |
| ADC Resolution | 12-bit |
| ADC Channels | 15 channels, up to 3.5 Msps |
| Op Amps | 3 integrated operational amplifiers |
| Comparators | 1 analog comparator |
| DAC | 12-bit DAC |
| PWM | High-speed PWM with 2 ns resolution |
| DMA Channels | 4 |
| Package | 36-UQFN (5x5 mm) exposed pad |
| Mounting Type | Surface Mount |
| Packaging | Tube |
| Qualification | AEC-Q100 automotive, Functional Safety (FuSa) capable |
DSPIC33CK64MC103-E/M5 36-uqfn (5x5 mm) exposed pad Pin Configuration Guide
Pin configuration for DSPIC33CK64MC103-E/M5 (36-uqfn (5x5 mm) exposed pad 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 DSPIC33CK64MC103-E/M5.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK64MC103-E/M5 is suitable for 6 applications: BLDC/PMSM Motor Field-Oriented Control, Digital Power Supplies (LLC, Totem-Pole PFC), Automotive Body and Auxiliary Subsystems, Touch Sensing and HMI, Precision Analog Sensing Front End, Industrial Automation and Robotics Control Nodes.
BLDC/PMSM Motor Field-Oriented Control
The DSPIC33CK64MC103-E/M5 is purpose-built for motor FOC: its 100 MHz core executes the Clarke/Park transforms and PI current loops at loop rates above 20 kHz, while the 12-bit, 3.5 Msps, 15-channel ADC simultaneously samples dual-shunt phase currents. Three integrated op amps condition the shunt signals, cutting external amplifier BOM cost, and the high-speed PWM with 2 ns resolution provides precise complementary outputs with narrow dead time for efficiency gains. Firmware runs deterministically thanks to single-cycle MAC instructions and short interrupt latency. The trade-off is a 3.0-3.6 V supply, so gate drivers must be 3.3 V-compatible; the AEC-Q100 -E grade also suits automotive blower and pump drives.
Recommended
Digital Power Supplies (LLC, Totem-Pole PFC)
In switch-mode power conversion, the DSPIC33CK64MC103-E/M5 closes voltage and current loops digitally: the 100 MIPS core sustains control bandwidths suitable for LLC and totem-pole PFC stages, the 2 ns-resolution high-speed PWM enables fine phase-shift and frequency control, and the 12-bit ADC samples the feedback divider at up to 3.5 Msps. DMA channels stream ADC results without CPU intervention, and the comparator plus 12-bit DAC implement fast hardware cycle-by-cycle overcurrent limiting independent of software. The ECC Flash protects control firmware integrity in always-on power supplies. Designers must budget the 3.3 V rail and isolate the controller from the high-voltage primary side via digital isolators.
Recommended
Automotive Body and Auxiliary Subsystems
The -E/M5 variant is AEC-Q100 qualified and rated -40C to +125C (70 MIPS permitted to +150C), matching under-hood and body-electronics ambient profiles such as HVAC blowers, fuel pumps, window lifts, and radiator fans. ECC on the 64 KB Flash and MBIST on the 8 KB SRAM support functional-safety arguments, and the identical FuSa-graded M5VAO variant exists for safety-scoped programs. The 3-op-amp analog front end reads resistive and Hall sensors directly. Because automotive EMC limits are strict, place the UQFN exposed pad on a solid ground plane and keep the 3.3 V decoupling within 2 mm of the supply pins.
Recommended
Touch Sensing and HMI
Microchip lists touch sensing among the dsPIC33CK64MC10X target applications. The device's 12-bit ADC with 15 channels scans capacitive touch electrodes using charge-transfer timing under CPU or DMA control, while the 100 MHz core runs debounce and drift-compensation algorithms with ample margin. The 12-bit DAC can generate stimulus or reference levels, and the PWM modules drive LED indicators or haptic feedback directly. In appliance and industrial panel designs, the -40C to +125C -E grade survives sealed enclosures with poor airflow. For best SNR, assign touch channels away from the PWM pins and shield sensor traces with ground guard rings on the PCB.
Recommended
Precision Analog Sensing Front End
With three on-chip op amps, one comparator, a 12-bit DAC, and a 3.5 Msps ADC, the DSPIC33CK64MC103-E/M5 forms a compact sensor signal chain: op amps amplify thermocouple, pressure-bridge, or current-shunt signals; the ADC digitizes them with DMA buffering; and DSP instructions apply filtering (IIR/FIR) and calibration math on-chip. The 12-bit DAC closes analog control loops or biases excitation sources. Subsystem cost drops because no external amplifier ICs are needed for moderate gain stages. Note the analog full-scale is bounded by the 3.0-3.6 V supply, so ratiometric sensor excitation from the same rail cancels supply-drift error.
Recommended
Industrial Automation and Robotics Control Nodes
In factory automation, the DSPIC33CK64MC103-E/M5 serves as a real-time actuation node: 100 MIPS handles multi-axis FOC or BLDC commutation, the 2 ns PWM drives servo inverters, and the 15-channel ADC reads encoders, potentiometers, and current sensors simultaneously. Four DMA channels offload high-rate ADC streams, keeping the CPU free for communication stacks. Wide -40C to +125C operation suits sealed drives and robot joints without forced cooling. Its 3.3 V logic interfaces cleanly with RS-485 or CAN transceivers for networked nodes. For functional-safety scoped modules, migrate to the same-footprint M5VAO FuSa variant without hardware change.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK64MC103-E/M5 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK64MC103-E/M5VAO | DSPIC33CK64MC103T-E/M5 | DSPIC33CK32MC103-E/M5 | DSPIC33CK64MC102-E/M5 |
|---|---|---|---|---|---|
| Package | 36-UQFN (5x5 mm), EP | 36-UQFN (5x5 mm) - same | 36-UQFN (5x5 mm) - same (T&R) | 36-UQFN (5x5 mm) - same | 36-UQFN (5x5 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock / MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS |
| Program Flash | 64 KB (ECC) | 64 KB (ECC) | 64 KB (ECC) | 32 KB (ECC) | 64 KB (ECC) |
| SRAM | 8 KB (MBIST) | 8 KB | 8 KB | 8 KB | 8 KB |
| Integrated Op Amps | 3 | 3 | 3 | 3 | 0 (op amps removed) |
| Temperature Range | -40C to +125C (E grade) | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
Key Differentiators
- Three integrated op amps eliminate external analog front-end ICs (vs DSPIC33CK64MC102-E/M5)
- 64 KB ECC Flash with fault-injection testing (vs DSPIC33CK32MC103-E/M5)
- Functional-Safety graded variant available in same footprint (vs DSPIC33CK64MC103-E/M5VAO)
Design Notes
Supply the device from a clean 3.0 V to 3.6 V rail; the ADC and op amps share this supply, so rail ripple appears directly in conversions. Place a 10 uF bulk plus 0.1 uF ceramic capacitor within 2 mm of the VDD pins, and connect the UQFN exposed pad to a solid ground plane with a 3x3 via array for both thermal and ground return integrity. Estimated: at 100 MIPS, core current is on the order of tens of mA, so a 250 mA LDO provides ample margin for a full-board design.
For motor-control layouts, keep the ADC-referenced shunt traces short and differential, routed away from the PWM output nets to prevent 2 ns-edge switching noise coupling into current samples. Reserve a PGECx/PGEDx matched pair plus MCLR on a 5-pin header for ICSP programming; per device documentation, ICSPCLK and ICSPDAT must use the same numbered pair (e.g., PGEC2/PGED2). Assign touch or precision analog inputs to channels away from PWM pins.
The -E grade permits -40C to +125C ambient at full 100 MIPS and up to +150C at derated 70 MIPS per the Microchip datasheet. In sealed enclosures, estimate junction temperature as Tj = Ta + Pdiss x thetaJA (package thetaJA from the datasheet thermal table); if your application requires maximum throughput above 125C ambient, it is not permitted - plan clock derating or add copper pour area. Verify with the official thermal data before finalizing the enclosure design.
Compliance Information
AEC-Q100 automotive qualification and Functional Safety (FuSa) listing confirmed from distributor data (datasheets.com, globalspec). RoHS/REACH/lead-free status not stated in the provided web data.
