DSPIC33FJ16MC304-H/PT - 16-bit DSC, 20 MIPS Motor Control | Microchip
MPN: DSPIC33FJ16MC304-H/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.98 | $5.98 |
| 10 | $5.38 | $53.80 |
| 100 | $4.65 | $465.00 |
| 500 | $4.1 | $2,050.00 |
| 1,000 | $3.72 | $3,720.00 |
DSPIC33FJ16MC304-H/PT Overview
A Digital Signal Controller combines the compute throughput of a Digital Signal Processor (DSP) with the peripheral set and deterministic control of a microcontroller (MCU). In the power-management hierarchy of embedded systems, DSCs sit between general-purpose MCUs and dedicated DSPs, making them the preferred choice for closed-loop control of switching power electronics such as BLDC, PMSM, and AC induction motor drives.
Key features include two PWM generators with independent timebases, Peripheral Pin Select (PPS) for flexible I/O remapping, an on-chip ADC with comparators for current-sense feedback, and up to 35 general-purpose I/O. The 16KB Flash supports self-programming, and the 2KB SRAM provides working memory for control-loop variables. The -H/PT ordering code denotes extended temperature operation per Microchip data for this device family.
Architecturally, the dsPIC33F core pairs a 16-bit RISC CPU with DSP engine instructions (MAC, DSP multiply-accumulate), enabling single-cycle math operations used in field-oriented control (FOC) and PID loops. The supply range is 3.0V to 3.6V nominal 3.3V operation, simplifying integration in standard 3.3V industrial systems.
Typical applications include brushless DC motor control, sensorless PMSM drives, digital power supplies (PFC, LLC), and automotive AEC-Q100-qualified auxiliaries. The high-speed PWM with fault inputs and direct comparator connection supports cycle-by-cycle current limiting.
Design consideration: leverage Peripheral Pin Select to route PWM and capture signals optimally on the PCB, but note that some analog functions are fixed-pin; plan the ADC input mapping early in layout. Ensure adequate decoupling on all VDD pins of the 44-TQFP.
This page synthesizes distributor availability, drop-in same-family alternatives, and practical motor-control design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ16MC304-H/PT — 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 DSPIC33FJ16MC304-H/PT (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, I/O Ports, PWM Generators.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32MC304-H/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ16MC304-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.98 / Unit
View Datasheet →DSPIC33FJ32MC304-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.78 / Unit
View Datasheet →DSPIC33FJ16GP304-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ128MC204-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.2 / Unit
View Datasheet →DSPIC33FJ16MC304-H/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC (MCU + DSP) |
| Maximum CPU Speed | 20 MIPS (40 MHz clock) |
| Program Memory | 16KB (16K x 8) Flash |
| RAM | 2KB (2048 words) |
| Supply Voltage | 3 V to 3.6 V (3.3 V nominal) |
| I/O Ports | 35 |
| PWM Generators | 2 with independent timebases |
| High-Speed Comparators | Up to 4 with direct PWM connection |
| Package | 44-TQFP (10 x 10 mm, 1 mm height) |
| Mounting Type | Surface Mount |
| Peripheral Pin Select | Yes (PPS I/O remapping) |
| Qualification | AEC-Q100 (automotive) |
| Temperature Range | -40C to +150C (per Microchip USA listing) |
| RoHS / Lead Free | Lead-free, RoHS compliant package |
| Life Cycle Stage | Active |
| Application Focus | Motor Control and Advanced Analog |
| Series | dsPIC 33F |
DSPIC33FJ16MC304-H/PT 44-tqfp (10 x 10 mm, 1 mm height) Pin Configuration Guide
Pin configuration for DSPIC33FJ16MC304-H/PT (44-tqfp (10 x 10 mm, 1 mm height) 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 DSPIC33FJ16MC304-H/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ16MC304-H/PT is suitable for 6 applications: Brushless DC (BLDC) Motor Control, Sensorless PMSM / FOC Drives, Digital Power Supplies (PFC, LLC), Automotive Auxiliary Motor Actuators, Industrial Fans, Pumps and Compressors, Battery-Powered Portable Tool Drives.
Brushless DC (BLDC) Motor Control
The DSPIC33FJ16MC304-H/PT is purpose-built for BLDC commutation: its two PWM generators with independent timebases drive three-phase inverter bridges, while up to four high-speed comparators with direct connection to PWM fault inputs provide cycle-by-cycle overcurrent limiting without CPU intervention. At 20 MIPS, the core executes six-step or sinusoidal commutation loops with ample headroom for PID current control. Peripheral Pin Select lets designers route encoder or hall-sensor captures to optimal physical pins. Place the controller near the gate drivers with a clean 3.3V rail and use the comparator fault path for hardware-level protection.
Recommended
Sensorless PMSM / FOC Drives
Field-oriented control of permanent-magnet synchronous motors demands fast multiply-accumulate math, which the dsPIC33F DSP engine performs in single cycles at 20 MIPS. The on-chip ADC samples phase currents for the Clarke/Park transforms, and the high-speed comparators feed the PWM module for instantaneous overcurrent shutdown - a hardware safety layer essential in FOC designs. The 2KB SRAM holds control-loop state and transform intermediates for a typical dual-loop (current/speed) FOC scheme. Combine with the MPLAB Motor Control library; the 16KB Flash accommodates a compact FOC implementation, with 32KB/128KB same-pinout variants available if code grows.
Recommended
Digital Power Supplies (PFC, LLC)
In switched-mode power conversion, the DSPIC33FJ16MC304-H/PT provides the high-resolution PWM and fast analog feedback needed for voltage-mode or current-mode control of PFC and LLC stages. The 40 MHz clock yields fine PWM duty resolution, and the four high-speed comparators implement cycle-by-cycle peak-current limiting directly in hardware, guaranteeing sub-microsecond protection even if firmware stalls. The 3.0V to 3.6V supply integrates cleanly with 3.3V Housekeeping rails, and AEC-Q100 qualification supports automotive onboard-charger subfunctions. Isolate gate-drive feedback optically and keep the analog sense traces short to the fixed analog input pins.
Recommended
Automotive Auxiliary Motor Actuators
With AEC-Q100 qualification and the extended -H temperature grade cited by distributors (operation to +150C per Microchip USA listing), the DSPIC33FJ16MC304-H/PT targets automotive auxiliary drives: coolant pumps, HVAC blowers, throttle actuators, and window lifters. The 44-TQFP plastic package is lead-free and RoHS compliant, and the 20 MIPS core runs sensorless commutation plus diagnostic firmware simultaneously. Hardware fault inputs driven by on-chip comparators satisfy functional-safety reaction-time requirements at the PWM level. Design with the industrial -I grade variant in mind for non-automotive derivatives of the same PCB to consolidate sourcing.
Recommended
Industrial Fans, Pumps and Compressors
Factory equipment with three-phase motors benefits from the DSPIC33FJ16MC304-H/PT's combination of motor-control peripherals and general 16-bit MCU capability. Independent PWM timebases allow simultaneous control of a main drive and a secondary actuator from one chip; Peripheral Pin Select routes encoder feedback for closed-loop speed regulation. The 16KB Flash stores control, protection, and communication (UART/SPI/I2C via PPS) firmware, and the 35 I/O lines interface limit switches and status LEDs. Use the comparator inputs for DC-bus overvoltage and phase overcurrent detection to protect the inverter during regenerative events common in decelerating loads.
Recommended
Battery-Powered Portable Tool Drives
Cordless drills, saws, and garden tools increasingly use sensorless BLDC motors controlled by DSCs. The DSPIC33FJ16MC304-H/PT runs commutation with the comparators providing zero-crossing-style protection, while its 3.3V operation and low peripheral count minimize idle power when the trigger is released. The 44-TQFP's 1 mm height suits slim tool housings, and Peripheral Pin Select lets one PCB serve multiple tool SKUs by remapping button, LED, and hall inputs in firmware rather than hardware. Combine with a suitably rated gate driver; the PWM fault input accepts the driver's fault output for rapid shutdown on stall or short circuit.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ16MC304-H/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32MC304-H/PT | DSPIC33FJ16MC304-I/PT | DSPIC33FJ16GP304-I/PT | DSPIC33FJ128MC204-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 16 KB | 32 KB | 16 KB | 16 KB | 128 KB |
| Peripheral Focus | Motor Control (PWM + comparators) | Motor Control - same | Motor Control - same | General Purpose (reduced MC peripherals) | Motor Control - same |
| Temperature Grade | -H extended (to +150C per distributor listing) | -H extended - same | -I industrial (-40C to +85C) | -I industrial (-40C to +85C) | -I industrial (-40C to +85C) |
| Pin-to-Pin Compatibility | Reference part | Pin-to-pin compatible | Pin-to-pin compatible | Pin-compatible, peripheral set differs | Pin-to-pin compatible |
Key Differentiators
- Motor-control peripheral integration (vs DSPIC33FJ16GP304-I/PT)
- Extended temperature grade in identical footprint (vs DSPIC33FJ16MC304-I/PT)
- Flash headroom on demand without respin (vs DSPIC33FJ128MC204-I/PT)
Design Notes
Decouple every VDD/VDDCORE pin pair of the 44-TQFP with 100 nF ceramic capacitors placed within 2 mm of the pins, plus one bulk 4.7 uF to 10 uF capacitor near the device. The dsPIC33F core operates from an internal regulator; Microchip application guidance recommends the specified core capacitor value from the family datasheet be fitted exactly - omission or undervaluing this capacitor is a common cause of erratic reset behavior at 40 MHz operation.
Peripheral Pin Select (PPS) remaps many digital functions, but analog inputs, PWM outputs on some mappings, oscillator pins (OSC1/OSC2), and MCLR are fixed. Configure PPS unlock/lock sequences per the family reference manual and remember that analog-capable pins default to analog mode at reset - digital inputs read 0 until the ANSEL-equivalent register clears. Budget firmware size carefully: 16KB Flash is sufficient for six-step control plus UART, but full FOC stacks may require the 32KB DSPIC33FJ32MC304-H/PT pin-compatible upgrade.
Route high-speed PWM outputs to gate drivers with short, matched traces and keep the comparator current-sense inputs on a quiet analog island away from PWM switching nodes. Use the hardware comparator-to-PWM fault path rather than firmware-only protection so overcurrent shutdown occurs without CPU latency. For the -H extended temperature grade, verify PCB material and solder joint reliability at the elevated ambient (up to +150C per distributor listing) - standard FR-4 Tg may be marginal in high-temperature motor-drive enclosures.
Compliance Information
Distributor data (digchip, Hotenda) states lead-free plastic TQFP package and automotive AEC-Q100 qualification for the dsPIC33FJ16MC304 family. REACH, halogen-free, and conflict-minerals status were not stated in the verified data.
