DSPIC33CK64MC103T-I/M5 - 100MHz DSC 64KB Flash UQFN-36 | Microchip
MPN: DSPIC33CK64MC103T-I/M5 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.73 | $0.73 |
| 10 | $0.7 | $7.00 |
| 100 | $0.66 | $66.00 |
| 500 | $0.62 | $310.00 |
| 1,000 | $0.58 | $580.00 |
DSPIC33CK64MC103T-I/M5 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, the DSC sits between general-purpose MCUs and dedicated DSPs, making it the standard choice for closed-loop motor control and high-speed digital power conversion where both fast math and rich analog peripherals are required on a single chip.
Key features include a single 100 MHz dsPIC DSC core with DSP instruction support, 64KB (64K x 8) Flash with ECC for functional-safety (FuSa) designs, a 12-bit ADC running at up to 3.5 Msps with 15 external channels, three integrated operational amplifiers, one analog comparator, a 12-bit DAC, and four high-speed 16-bit PWM modules (4x2) with 2 ns edge resolution for precise switch control.
Architecturally, the dsPIC33CK family pairs the 16-bit RISC core with enhanced on-chip peripherals targeted at motor control, advanced sensing, and digital power. The integrated op amps can serve as current-sense amplifiers feeding the ADC directly, shortening the analog front-end and improving phase margin in fast control loops. The 2 ns PWM resolution supports switching frequencies well above 100 kHz with fine duty-cycle granularity.
Typical applications include brushless DC and PMSM motor control, switch-mode power supplies and AC-DC converters, and touch or advanced sensing systems. The 3.6V maximum supply and industrial -40C to +85C operating range suit compact industrial and consumer power electronics.
For layout, place a low-ESR decoupling capacitor at each VDD pin and keep the exposed pad well soldered to ground for thermal and signal-integrity performance. The M5 UQFN-36 footprint requires attention to via-in-pad or fanout design.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33CK64MC103T-I/M5 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
DSPIC33CK128MC103T-I/M5
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33CK32MC103T-I/M5
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33CK64MC103-E/M5
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33CK64MC103T-I/M5 Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC RISC |
| Core Speed | 100 MHz |
| Flash Memory | 64 KB (64K x 8), with ECC |
| RAM | 8 KB (8192 words) |
| Supply Voltage | 3.3 V (max 3.6 V) |
| ADC | 12-bit, 3.5 Msps, 15 channels |
| Op Amps | 3 integrated operational amplifiers |
| Comparators | 1 analog comparator |
| DAC | 1 x 12-bit DAC |
| PWM | 4 x high-speed 16-bit PWM, 2 ns resolution |
| Package | 36-UQFN (5x5 mm), exposed pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C |
| Programming Interface | ICSP (PGECx/PGEDx pairs) |
| Functional Safety | FuSa supported (ECC Flash) |
| Terminal Count | 36 |
| RoHS Status | Compliant |
DSPIC33CK64MC103T-I/M5 36-uqfn (5x5 mm), exposed pad Pin Configuration Guide
Pin configuration for DSPIC33CK64MC103T-I/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 DSPIC33CK64MC103T-I/M5.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK64MC103T-I/M5 is suitable for 6 applications: BLDC/PMSM Motor Control, Digital Power Conversion (AC-DC / DC-DC), Advanced Sensing and Signal Conditioning, Capacitive Touch Interfaces, Industrial Automation and Control Nodes, Consumer Appliance Power and Control.
BLDC/PMSM Motor Control
The DSPIC33CK64MC103T-I/M5 fits field-oriented control (FOC) of brushless DC and permanent-magnet synchronous motors because it integrates every stage of the current loop on one 36-pin chip. The three on-chip op amps amplify shunt phase currents, the 12-bit ADC samples at 3.5 Msps across 15 channels, and the 4x2 complementary PWMs with 2 ns resolution drive a three-phase inverter at switching frequencies beyond 100 kHz with fine duty-cycle granularity. The 100 MHz DSP core executes Clarke/Park transforms and a PI current loop within a single PWM period. At 3.3V supply in the compact 5x5 mm UQFN, it suits compact industrial drives, e-bike controllers, and servo modules.
Recommended
Digital Power Conversion (AC-DC / DC-DC)
For switch-mode power supplies and digital power stages, the DSPIC33CK64MC103T-I/M5 provides the precise timing and fast analog capture that peak-current-mode and average-current-mode topologies demand. The 2 ns PWM edge resolution keeps duty-cycle quantization low even at 500 kHz switching, and the 3.5 Msps ADC synchronizes to the PWM trigger for cycle-by-cycle current sampling. The on-chip comparator supports fast overcurrent protection independent of the CPU, while the 12-bit DAC sets the comparator threshold. ECC Flash adds integrity for power systems targeting safety-relevant designs, and the -40C to +85C industrial range covers telecom and server power environments.
Recommended
Advanced Sensing and Signal Conditioning
The DSPIC33CK64MC103T-I/M5 serves advanced-sensing nodes that need local signal conditioning before digital transmission. Its three integrated op amps implement anti-alias filtering or gain stages for sensors such as pressure bridges, thermocouples, or current transducers, feeding the 12-bit/3.5 Msps ADC without external amplifier ICs. The 12-bit DAC can generate sensor excitation or reference offsets, and the DSP instructions accelerate FFT-based feature extraction locally. In the 5x5 mm UQFN-36 with -40C to +85C operation, it fits compact industrial transmitters, weighing-scale front ends, and vibration-monitoring probes where board area and analog integration dominate the BOM.
Recommended
Capacitive Touch Interfaces
Microchip positions the dsPIC33CK64MC10X family for touch applications, and the DSPIC33CK64MC103T-I/M5 implements charge-transfer or ADC-based capacitive touch using its 15-channel ADC and 100 MHz core. The DSP throughput supports oversampling and drift-compensation algorithms that keep touch reliability stable across humidity and temperature changes, while the on-chip op amps can buffer the excitation signal. With 36 pins, a design can combine a touch keypad or slider with an LED driver PWM and a communication link (UART/SPI/I2C) on one controller, making it suitable for appliance panels, industrial HMI buttons, and white-goods controls where certification cost favors a proven FuSa-capable device.
Recommended
Industrial Automation and Control Nodes
As a 16-bit, 100 MHz controller with ECC Flash and functional-safety support, the DSPIC33CK64MC103T-I/M5 fits industrial automation nodes that combine real-time control with communication. The 36-pin UQFN provides enough GPIO for limit switches, relays driven by the PWM modules, and an RS-485 or CAN-adjacent UART/SPI link implemented in software or via an external transceiver. The -40C to +85C temperature grade and 3.3V rail match standard industrial electronics, while the 2 ns PWM resolution also covers proportional valve or heater phase-angle control. The 64KB Flash leaves headroom for protocol stacks plus application firmware and field updates.
Recommended
Consumer Appliance Power and Control
In consumer products such as fan blowers, pumps, food processors, and small HVAC compressors, the DSPIC33CK64MC103T-I/M5 consolidates the motor-control MCU, sensor front end, and user interface into one 36-pin UQFN device, reducing board area and BOM count. The three op amps and comparator handle low-cost single-shunt current sensing, the 3.5 Msps ADC samples user controls or NTC thermistors on spare channels, and the 12-bit DAC plus PWM drive status LEDs or buzzer tones. The sub-$1 unit price at LCSC (as of 2026-09-23) makes cost-sensitive consumer designs viable while retaining industrial-grade -40C to +85C reliability.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK64MC103T-I/M5 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK128MC103T-I/M5 | DSPIC33CK32MC103T-I/M5 | DSPIC33CK64MC103-E/M5 |
|---|---|---|---|---|
| Package | 36-UQFN (5x5 mm) | 36-UQFN (5x5 mm) - same | 36-UQFN (5x5 mm) - same | 36-UQFN (5x5 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 64 KB (ECC) | 128 KB (ECC) | 32 KB (ECC) | 64 KB (ECC) |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB |
| ADC | 12-bit, 3.5 Msps, 15 ch | 12-bit, 3.5 Msps, 15 ch | 12-bit, 3.5 Msps, 15 ch | 12-bit, 3.5 Msps, 15 ch |
| PWM Resolution | 2 ns | 2 ns | 2 ns | 2 ns |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C |
Key Differentiators
- Balanced 64KB Flash middle tier (vs DSPIC33CK32MC103T-I/M5)
- Cost-optimized for standard industrial range (vs DSPIC33CK64MC103-E/M5)
- Integrated analog front end (vs DSPIC33CK128MC103T-I/M5)
Design Notes
The 36-UQFN (5x5 mm, M5) package has a 0.5 mm pin pitch and an exposed pad that must be soldered to the ground plane for both thermal dissipation and signal integrity. Use a 3x3 via array under the exposed pad (via-in-pad or via-in-thermal-relief per Microchip layout application notes for UQFN packages) and place 0.1uF ceramic decoupling capacitors within 2 mm of each VDD pin. Keep the crystal or internal-FSO clock traces short and away from PWM outputs to minimize jitter in motor-control loops.
The DSPIC33CK64MC103T-I/M5 is a 3.3V device with a 3.6V absolute maximum supply per distributor parametric data. Do not connect it directly to a 5V rail; use a 3.3V LDO with adequate accuracy. When powering from switching converters, verify ripple stays within the datasheet VDD tolerance since the 12-bit ADC accuracy degrades with supply noise - add an LC filter or ferrite bead on the analog supply pin. Estimated: at 100 MHz full active operation, core current is typically in the tens of mA range (see manufacturer datasheet IDD tables for exact figures).
For ICSP programming, the dsPIC33CK64MC103 has multiple PGECx/PGEDx pin pairs; per Northern Software documentation of this device, you must use a matched pair - if PGEC2 carries ICSPCLK, ICSPDAT must go to PGED2. Mixing pins from different pairs prevents programming. Also reserve the programming header (5 pins: MCLR, VDD, GND, PGECx, PGEDx) on production PCBs even when field programming is not planned, and check that MCLR is pulled up properly for the programmer voltage level.
The 2 ns PWM edge resolution means output edges are fast enough to cause significant ringing on long, unterminated inverter gate-drive traces. Keep gate-driver traces under 20 mm or add small series resistors (4.7-10 ohm) at the PWM output pins to damp transmission-line effects. Route the three op-amp current-sense inputs (from motor shunt resistors) as short differential pairs with their kelvin-ground references to preserve ADC accuracy in FOC loops.
Compliance Information
RoHS compliance shown in distributor listings (pcbelectronics.com, LCSC). REACH, halogen-free, and conflict-minerals statements should be confirmed via Microchip's official compliance documentation.
