DSPIC33FJ16MC101-E/SO - 16-bit 16MIPS DSC 16KB Flash | Microchip
MPN: DSPIC33FJ16MC101-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.12 | $4.12 |
| 10 | $3.78 | $37.80 |
| 100 | $3.35 | $335.00 |
| 500 | $3.02 | $1,510.00 |
| 1,000 | $2.71 | $2,710.00 |
DSPIC33FJ16MC101-E/SO Overview
A digital signal controller combines the compute pipeline of a DSP with the peripheral set and ease of use of a microcontroller, sitting in the hierarchy between a general-purpose MCU and a dedicated DSP. Within power management and embedded control systems, DSCs occupy the role of real-time control processors for switching power conversion and motor drives, where deterministic interrupt latency and dedicated PWM hardware are essential.
Key features include the 16-bit dsPIC33F core with DSP multiply-accumulate instructions, supply voltage of 3.0V to 3.6V, pin I/O sink/source capability of 10 mA (up to 16 mA on non-standard VOH1 pins), 5V-tolerant inputs, up to 20 selectable open-drain outputs with pull-ups, and three external interrupts (two remappable). The MCPWM peripheral provides complementary or independent PWM outputs with dead-time insertion targeted at motor drive topologies.
Architecturally, the device pairs the PIC-style Harvard bus structure with two 40-bit accumulators, 17x17 hardware multipliers, and modulo bit-reversed addressing for efficient FIR filtering and control-loop math. The CTMU supports precise time and capacitance measurement, and the four high-speed comparators connect directly to the PWM fault inputs for cycle-by-cycle current limiting in BLDC, PMSM, and ACIM drives.
Typical applications include brushless DC motor control, switched-mode power supplies (SMPS), power-factor-correction stages, and sensorless field-oriented-control (FOC) implementations. The low pin count and small SOIC footprint suit cost- and board-space-constrained industrial products.
For design, note that the core requires 3.0V-3.6V operation; use ferrite-isolated analog supplies and verify Flash programming voltage requirements against the manufacturer datasheet. PPS remapping should be locked after configuration to avoid accidental peripheral reassignment.
This page synthesizes distributor pricing tiers, drop-in alternatives within the dsPIC33FJ family, and practical design notes not consolidated in the manufacturer datasheet (Microchip document 70000652f).
Drop-in alternatives for DSPIC33FJ16MC101-E/SO — 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 DSPIC33FJ16MC101-E/SO (same form factor and footprint) — differing in Operating Temperature, Package, ADC, Core Architecture, Max CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ16MC101-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.03 / Unit
View Datasheet →DSPIC33FJ12MC202-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.85 / Unit
View Datasheet →DSPIC33FJ12MC201T-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.21 / Unit
View Datasheet →DSPIC33FJ12GP201-E/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.18 / Unit
View Datasheet →DSPIC33FJ12GP202-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.46 / Unit
View Datasheet →DSPIC33FJ16MC101-E/SO Maximum Ratings & Electrical Characteristics
| Core | dsPIC33F, 16-bit |
| Max CPU Speed | 16 MIPS (40 MHz clock) |
| Flash Program Memory | 16 KB (16K x 8) |
| SRAM | 1 KB |
| Supply Voltage | 3.0 V to 3.6 V |
| I/O Ports | 35 (family max; package-dependent) |
| I/O Sink/Source Current | 10 mA / 6 mA (up to 16 mA / 12 mA non-standard VOH1) |
| Motor Control PWM (MCPWM) | Yes |
| ADC | 10-bit |
| Comparators | Up to 4 high-speed, direct PWM fault connection |
| Charge Time Measurement Unit | Yes (CTMU) |
| Peripheral Pin Select (PPS) | Yes |
| External Interrupts | 3 (two remappable) |
| 5V Tolerant Pins | Yes |
| Open-Drain Outputs with Pull-ups | Up to 20 selectable |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 20-lead SOIC |
| Mounting Type | Surface Mount |
| Lifecycle Status | Active |
DSPIC33FJ16MC101-E/SO 20-lead soic Pin Configuration Guide
Pin configuration for DSPIC33FJ16MC101-E/SO (20-lead soic 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 DSPIC33FJ16MC101-E/SO.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ16MC101-E/SO is suitable for 6 applications: BLDC Motor Control, Switch-Mode Power Supplies (SMPS), Power Factor Correction, Capacitive Sensing with CTMU, Industrial Automation and Sensing Nodes, Automotive-Adjacent Blowers and Pumps.
BLDC Motor Control
The DSPIC33FJ16MC101-E/SO fits brushless DC motor drives because its Motor Control PWM peripheral delivers complementary outputs with hardware dead-time insertion while up to four high-speed comparators connect directly to PWM fault inputs for cycle-by-cycle current limiting. The 16 MIPS DSP core with 17x17 hardware MAC executes trapezoidal or sensorless commutation loops well within PWM-period timing budgets, and the CTMU supports back-EMF timing measurement without external components. In a typical 3-phase inverter, the DSC reads the shunt current via the 10-bit ADC, runs the commutation ISR, and updates PWM duty at 20 kHz with substantial margin. The E-grade -40C to +125C temperature rating suits motor housings and sealed enclosures where ambient temperatures exceed standard industrial limits.
Recommended
Switch-Mode Power Supplies (SMPS)
Digitally controlled power supplies benefit from the DSPIC33FJ16MC101's deterministic interrupt latency, high-speed comparators wired to PWM shutdown, and DSP MAC instructions that accelerate PID and 3p3z compensator calculations. The MCPWM module generates the switching waveform while the 10-bit ADC samples output voltage and inductor current each cycle, enabling adaptive voltage-positioning and burst-mode efficiency schemes in flyback, buck, and LLC topologies. The E-grade temperature rating supports enclosed adapter and telecom-brick environments. Designers should budget ADC conversion time and ISR execution against the switching period - at 100 kHz switching, roughly 10 us is available, which this 16 MIPS core handles for single-loop control with margin for protection logic.
Recommended
Power Factor Correction
Continuous-conduction-mode PFC stages require average-current-mode control with fast overcurrent protection - precisely what the DSPIC33FJ16MC101 provides. The comparator bank detects inductor overcurrent and collapses the PWM output in hardware, independent of software latency, which is essential during AC-line transients. The DSP engine computes the current-loop multiplier and outer voltage loop each half-cycle, while PPS remapping places the zero-crossing detection input on the most convenient package pin. At a 3.0V-3.6V supply with 5V-tolerant inputs, interfacing to line-sense dividers is straightforward. The low pin count keeps the controller section of a 300W PFC front-end compact and inexpensive relative to larger 64-pin digital-power DSCs.
Recommended
Capacitive Sensing with CTMU
The integrated Charge Time Measurement Unit gives the DSPIC33FJ16MC101 a precise time and capacitance measurement capability used for capacitive touch buttons, liquid-level sensing, and proximity detection in appliance and industrial panels. The CTMU charges the sensor node with a constant current and measures the charge time against the internal reference, achieving resolution sufficient for 8-16 touch channels with careful electrode layout. Because the measurement engine shares the die with the motor-control PWM, a single controller can run a fan or pump motor and process touch input concurrently - a common combination in appliances. Guard-ring grounding and scan-frequency selection away from 50/60 Hz harmonics are the primary layout considerations.
Recommended
Industrial Automation and Sensing Nodes
In factory equipment, the DSPIC33FJ16MC101-E/SO serves as a compact control node combining signal acquisition, actuator drive, and communications. Peripheral Pin Select lets firmware place UART, SPI, or external-interrupt functions on whichever SOIC pins route cleanly on the PCB, while three external interrupts (two remappable) capture encoder or limit-switch events. The extended -40C to +125C rating tolerates panel-mounted enclosures near heat sources, and 5V-tolerant inputs interface directly with legacy 5V PLC signal levels through simple series resistors. With 16KB Flash, the device runs sensing plus a Modbus RTU slave with room for a boot loader, and the 20-lead SOIC keeps board area minimal for dense I/O cards.
Recommended
Automotive-Adjacent Blowers and Pumps
Under-hood-adjacent and high-ambient applications such as engine-bay blowers, coolant pumps, and actuator drivers exploit the E-grade -40C to +125C operating range of the DSPIC33FJ16MC101-E/SO. The hardware dead-time insertion and comparator-based fault shutdown protect the external MOSFET bridge during load dumps and stall events, while the DSP core sustains field-oriented or six-step control at ambient extremes where software margins tighten. Although this part is not AEC-Q100 qualified and should not be specified for safety-critical automotive paths, it is widely used in off-road equipment, agricultural pumps, and auxiliary blowers where extended temperature rather than automotive qualification is the binding requirement. Designers should derate Flash endurance and verify supply dip behavior at cold crank.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ16MC101-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ16MC101-I/SO | DSPIC33FJ12MC202-I/SO | DSPIC33FJ12MC201T-I/SO | DSPIC33FJ12GP201-E/SO |
|---|---|---|---|---|---|
| Package | 20-lead SOIC (E grade) | 20-lead SOIC - same | 20-lead SOIC - same | 20-lead SOIC - same | 20-lead SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 16 KB | 12 KB | 12 KB | 12 KB |
| CPU Performance | 16 MIPS @ 40 MHz | 16 MIPS @ 40 MHz | 16 MIPS @ 40 MHz | 16 MIPS @ 40 MHz | 16 MIPS @ 40 MHz |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +125C (E grade) |
| Family / Peripheral Focus | MC (Motor Control): MCPWM + CTMU | MC: MCPWM + CTMU | MC: MCPWM + CTMU | MC: MCPWM + CTMU | GP: general-purpose peripherals |
| 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 | 3.0 V to 3.6 V |
| Pin Compatibility | Reference (20-SOIC, dsPIC33FJ) | Pin-to-pin identical | Pin-to-pin identical | Pin-to-pin identical | Pin-to-pin identical |
Key Differentiators
- Extended -40C to +125C temperature rating (vs DSPIC33FJ16MC101-I/SO)
- 25% more Flash than 12KB family siblings (vs DSPIC33FJ12MC202-I/SO)
- Dedicated Motor Control PWM with CTMU (vs DSPIC33FJ12GP201-E/SO)
Design Notes
The dsPIC33F core integrates an internal regulator that requires a VCAP capacitor to ground - fit the exact capacitance and ESR the Microchip datasheet specifies, placed as close to the VCAP pin as possible. Decouple each VDD pin with 0.1uF ceramic plus one bulk 4.7uF-10uF per board. Supply range is 3.0V to 3.6V; driving VDD above 3.6V is the most common field failure. When mixing 5V peripherals, exploit 5V-tolerant input pins with series resistors rather than level shifters where possible.
Peripheral Pin Select (PPS) is powerful but risky: an unlocked PPS register can be corrupted by a stray write, silently disconnecting PWM outputs from pins during motor operation. Lock PPS after initialization and re-verify in safety checks. Also, analog-capable pins default to analog mode after reset - if digital inputs read zero during bring-up, clear the ANSEL bits first. Reserve Flash headroom (at least 25%) for bootloaders since the 16KB array fills quickly with FOC firmware.
For motor-drive layouts, route PWM gate-drive traces away from shunt-amplifier feedback lines and return high-current paths directly to the bulk capacitor rather than through the DSC ground. Place the comparator inputs' RC filters close to the device to keep cycle-by-cycle current-limit thresholds clean. The E-grade part dissipates minimal power at 16 MIPS, so thermal design centers on the power stage; still, keep the SOIC away from MOSFET drain nodes to limit dV/dt coupling into ADC inputs, and use a solid ground plane under the controller.
PWM edges from the MCPWM module drive long gate traces that radiate; add series gate resistors (10-22 ohm) and consider programmable slew control if available in the PWM module configuration. Shield the crystal or use the internal FRC oscillator for non-precision timing to reduce emission sources. For CTMU capacitive sensing, synchronize scan frequency away from 50/60 Hz harmonics and their multiples to reject mains interference.
Compliance Information
Lead-free plastic package per datasheet listing (DigChip). RoHS compliance consistent with current Microchip production; verify certificate of conformance on the Microchip product page for this exact ordering code. Not an automotive-qualified (AEC-Q100) part.
