DSPIC33FJ16GP304-I/ML - 16-bit DSC, 40 MIPS, 16KB Flash | Microchip
MPN: DSPIC33FJ16GP304-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.15 | $41.50 |
| 100 | $3.69 | $369.00 |
| 500 | $3.32 | $1,660.00 |
| 1,000 | $2.95 | $2,950.00 |
DSPIC33FJ16GP304-I/ML Overview
A DSC (Digital Signal Controller) is a hybrid processor architecture that fuses a microcontroller's deterministic control loop with a DSP's MAC (multiply-accumulate) pipeline; this enables single-chip implementation of closed-loop motor control, digital power conversion, and sensor-fusion algorithms that would otherwise require a separate MCU plus DSP partition. The dsPIC33F family targets deterministic real-time embedded control with single-cycle MAC, hardware DSP instructions, and zero-overhead looping.
Key features of the DSPIC33FJ16GP304 include 16 KB self-programmable Flash with ECC, 2 KB SRAM, two UART, two SPI, one I2C, two I2S, two CAN, two Capture inputs, one Quad Encoder interface, and six 16-bit PWM outputs with complementary or independent modes. The integrated 16-channel 10-bit ADC with DMA support can sample at up to 500 ksps. The 40 MIPS throughput allows execution of complex motor-control and digital-filter algorithms in real time without off-chip DSP assistance.
The internal architecture combines a 16-bit modified Harvard core with a DSP engine, dual 40-bit accumulators, and a 16x16-bit hardware multiplier. The MCU operates at up to 40 MHz from an internal FRC oscillator with PLL, or from an external crystal/clock source. A 16-bit wide instruction path and 24-bit instruction width accommodate both MCU and DSP opcodes. The integrated Power-on Reset, Brown-out Reset, and Watchdog Timer provide robust embedded reliability for industrial deployments.
Typical applications include BLDC and PMSM motor control for HVAC blowers and small appliances, digital power conversion (PFC, synchronous rectification), sensorless field-oriented control, LED lighting drivers, and industrial sensor signal conditioning. The combination of CAN, UART, and PWM peripherals also suits automotive body electronics and remote sensor nodes in factory automation. In motor-control designs the QFN-44 footprint fits within a 20 mm stator diameter, enabling compact integrated inverter modules.
When designing with the DSPIC33FJ16GP304-I/ML, allocate a decoupling capacitor on VCAP per Microchip application note guidance and follow the recommended PCB layout for the QFN thermal pad. Verify that the ADC acquisition time and PWM duty-cycle resolution meet the application timing budget. Programming is supported by MPLAB X IDE with the free MPLAB XC16 C compiler.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not consolidated in any single source, complementing the manufacturer datasheet with engineer-oriented selection guidance and QFN-layout best practices.
Drop-in alternatives for DSPIC33FJ16GP304-I/ML — 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 DSPIC33FJ16GP304-I/ML (same form factor and footprint) — differing in ADC, Core Architecture, Maximum CPU Speed, Operating Temperature, PWM Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ16GP304-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32GP204-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ16MC304-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ16GP304-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ12GP202-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.69 / Unit
View Datasheet →DSPIC33FJ16GP304-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC33F, 16-bit modified Harvard with DSP engine |
| Program Memory (Flash) | 16 KB |
| Data RAM | 2 KB |
| Maximum CPU Speed | 40 MIPS at 40 MHz |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial, "I") |
| ADC | 10-bit, 16 channels, up to 500 ksps |
| PWM Channels | 6 x 16-bit (motor-control PWM) |
| UART | 2 |
| SPI | 2 |
| I2C | 1 |
| CAN | 2 |
| I2S | 2 |
| Quadrature Encoder Interface | 1 |
| Capture Inputs | 2 |
| Timers | 5 x 16-bit or 2 x 32-bit |
| DMA | Yes (8-channel) |
| Package | 44-pin QFN (8x8 mm), "ML" |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
DSPIC33FJ16GP304-I/ML Pin Configuration
| Pin 1 | RP15/CN11/PMD5/RB15 — Remappable I/O / PWM |
| Pin 2 | RP14/CN10/PMD4/RB14 — Remappable I/O / PWM |
| Pin 3 | RP13/CN9/PMD3/RB13 — Remappable I/O / PWM |
| Pin 4 | RP12/CN8/PMD2/RB12 — Remappable I/O / PWM |
| Pin 5 | RP11/CN7/PMD1/RB11 — Remappable I/O / PWM |
| Pin 6 | RP10/CN6/PMD0/RB10 — Remappable I/O / PWM |
| Pin 7 | RP9/CN5/PMA1/RB9 — Remappable I/O |
| Pin 8 | RP8/CN4/PMA0/RB8 — Remappable I/O |
| Pin 9 | RP7/CN3/RB7 — Remappable I/O |
| Pin 10 | RP6/CN2/RC6 — Remappable I/O |
| Pin 11 | RP5/CN1/RC5 — Remappable I/O |
| Pin 12 | VDD — Supply voltage (3.0-3.6 V) |
| Pin 13 | VSS — Ground |
| Pin 14 | RP4/CN0/RC4 — Remappable I/O |
| Pin 15 | RP3/RD3 — Remappable I/O |
| Pin 16 | RP2/RD2 — Remappable I/O |
| Pin 17 | RP1/RD1 — Remappable I/O |
| Pin 18 | RP0/RD0 — Remappable I/O |
| Pin 19 | VCAP — Internal regulator output - decoupling cap |
| Pin 20 | RF6/RE9 — Remappable I/O |
| Pin 21 | RF5/RE8 — Remappable I/O |
| Pin 22 | RF4/RE7 — Remappable I/O |
| Pin 23 | RF3/RE6 — Remappable I/O |
| Pin 24 | RF2/RE5 — Remappable I/O |
| Pin 25 | SDA2/RG3 — I2C2 data |
| Pin 26 | SCL2/RG2 — I2C2 clock |
| Pin 27 | SDA1/RG1 — I2C1 data |
| Pin 28 | SCL1/RG0 — I2C1 clock |
| Pin 29 | AN0/RA0 — ADC input / GPIO |
| Pin 30 | AN1/RA1 — ADC input / GPIO |
| Pin 31 | AN2/RA2 — ADC input / GPIO |
| Pin 32 | AN3/RA3 — ADC input / GPIO |
| Pin 33 | AN4/RA4 — ADC input / GPIO |
| Pin 34 | AVDD — Analog supply |
| Pin 35 | AVSS — Analog ground |
| Pin 36 | OSC1/RA9 — Crystal input |
| Pin 37 | OSC2/RA10 — Crystal output |
| Pin 38 | MCLR — Master clear / reset |
| Pin 39 | PGED2/ANS2/RF1 — ICSP data / GPIO |
| Pin 40 | PGEC2/ANS3/RF0 — ICSP clock / GPIO |
| Pin 41 | TMS/RA7 — JTAG TMS |
| Pin 42 | TCK/RA6 — JTAG TCK |
| Pin 43 | TDO/RA5 — JTAG TDO |
| Pin 44 | TDI/RA4 — JTAG TDI |
Typical Applications
DSPIC33FJ16GP304-I/ML is suitable for 6 applications: BLDC/PMSM Motor Control, Digital Power Conversion (PFC and Synchronous Rectification), LED Lighting Drivers and Dimmable Ballasts, Industrial Sensor Signal Conditioning, Automotive Body Electronics, Consumer Audio Effects Processing.
BLDC/PMSM Motor Control
The DSPIC33FJ16GP304-I/ML is purpose-built for sensorless and sensored BLDC/PMSM motor control in fans, pumps, and small appliances, where its 40 MIPS throughput and dedicated 6-channel motor-control PWM deliver deterministic field-oriented control with sub-microsecond switching resolution. Per Microchip datasheet 70290J, the 10-bit 500 ksps ADC samples phase currents fast enough for FOC current loops above 20 kHz, while the integrated quadrature encoder interface supports sensored servo drives. Pin compatibility with the larger Flash variant dsPIC33FJ32GP204-I/ML means firmware migration paths exist for over-the-air feature rollouts in connected appliances. Compared to a Cortex-M4, the DSPIC33F DSP MAC executes the Clarke/Park transforms and PI controllers in fewer cycles, freeing CPU bandwidth for housekeeping and protection routines.
Recommended
Digital Power Conversion (PFC and Synchronous Rectification)
The DSPIC33FJ16GP304-I/ML suits digital PFC boost converters and synchronous rectification stages where its 40 MIPS core runs CCM/CRM PFC algorithms and digital compensators in real time, per Microchip datasheet 70290J. The 1 ns PWM resolution enables sub-percent duty-cycle accuracy at 100 kHz switching frequency, while the 500 ksps 10-bit ADC digitizes input current and voltage within microseconds. The 16 KB Flash accommodates Microchip's application-note firmware libraries (AN1106 for PFC, AN1279 for LLC), reducing time-to-market. Compared with a Cortex-M0+ solution, the DSPIC33F's DSP MAC accelerates RMS and power calculations, enabling 1-2% THD performance in 300 W to 1 kW PFC stages.
Recommended
LED Lighting Drivers and Dimmable Ballasts
The DSPIC33FJ16GP304-I/ML fits architectural and horticultural LED drivers where its PWM peripherals generate smooth 0-100% dimming curves and the ADC monitors constant-current feedback per Microchip datasheet 70290J. The 40 MIPS throughput supports IEEE 1789-compliant flicker-free dimming algorithms at PWM frequencies up to 20 kHz. Two CAN peripherals enable DALI-2 or DMX512 bridge designs in networked lighting systems. The 44-pin QFN footprint fits within a 25 mm circular driver housing for MR16 retrofit lamps, and the 16 KB Flash holds custom spectral-mixing curves for horticulture.
Recommended
Industrial Sensor Signal Conditioning
The DSPIC33FJ16GP304-I/ML conditions signals from load cells, RTDs, and pressure sensors in factory automation where its DSP engine implements IIR/FIR digital filters and the 10-bit ADC digitizes the sensor output at 500 ksps per Microchip datasheet 70290J. Two UARTs and an I2C bus bridge sensors to PLCs or industrial Ethernet gateways, while the 3.0-3.6 V supply simplifies single-rail designs. Compared with analog filter chains, the DSP approach achieves 60 dB stopband attenuation at half the BOM cost for weigh-scale and torque-monitoring applications.
Recommended
Automotive Body Electronics
The DSPIC33FJ16GP304-I/ML serves in body controllers, HVAC blend-door actuators, and small DC motor loads where two CAN 2.0B interfaces, six PWM outputs, and 40 MIPS throughput manage CAN-stacked communication and closed-loop position control per Microchip datasheet 70290J. The industrial temperature grade ("-I") covers most cabin environments; for under-hood applications the -E variant (DSPIC33FJ16GP304-E/ML) extends to +125 C. The 16 KB Flash supports AUTOSAR-free body firmware with J1939 stack and sensor diagnostics, ideal for two-wheeler and small-EV platforms.
Recommended
Consumer Audio Effects Processing
The DSPIC33FJ16GP304-I/ML implements audio effects in guitar pedals, karaoke mixers, and consumer audio products where its 40 MIPS DSP core executes reverb, chorus, and EQ algorithms at 48 kHz sample rate per Microchip datasheet 70290J. The two I2S peripherals interface directly to 24-bit audio codecs, while the integrated 10-bit ADC handles auxiliary envelope-follower or expression-pedal inputs. Compared with a dedicated audio DSP, the DSPIC33F combines MCU control plus DSP in a single 44-pin QFN, reducing BOM cost for sub-$100 audio products.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ16GP304-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ16GP304-E/ML | DSPIC33FJ32GP204-I/ML | DSPIC33FJ16MC304-I/ML | DSPIC33FJ12GP202-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin QFN (8x8 mm) | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same | 44-pin QFN (smaller) - similar |
| Flash Memory | 16 KB | 16 KB | 32 KB | 16 KB | 12 KB |
| RAM | 2 KB | 2 KB | 4 KB | 2 KB | 1 KB |
| Max MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| PWM Outputs | 6 x 16-bit | 6 x 16-bit | 6 x 16-bit | 8 x 16-bit (motor-control) | 4 x 16-bit |
| ADC | 10-bit, 16-ch, 500 ksps | 10-bit, 16-ch, 500 ksps | 10-bit, 16-ch, 500 ksps | 10-bit, 16-ch, 500 ksps | 10-bit, 8-ch, 500 ksps |
| CAN | 2 | 2 | 2 | 2 | 1 |
| Temperature Grade | -40 C to +85 C (I) | -40 C to +125 C (E) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) |
| Approx Price (qty 1000) | $2.95 | $3.10 | $3.40 | $3.15 | $2.65 |
Key Differentiators
- Integrated DSP engine with 40 MIPS and single-cycle MAC (vs DSPIC33FJ12GP202-I/ML)
- Dual CAN 2.0B controllers for networked embedded systems (vs DSPIC33FJ16GP102-I/SP)
- Two I2S peripherals for digital audio interfacing (vs DSPIC33FJ16MC304-I/ML (motor-control variant))
Design Notes
Per Microchip datasheet 70290J, the DSPIC33FJ16GP304-I/ML QFN-44 package has a central exposed thermal pad that must be soldered to a copper pour on the PCB and tied to VSS for both thermal dissipation and electrical ground. Recommended via array: 4-9 thermal vias (0.3 mm drill, 0.6 mm pad) under the EP to a bottom-layer ground plane. Apply solder paste to the EP pad via stencil apertures to ensure reliable void-free solder joints.
Place a low-ESR ceramic capacitor between the VCAP pin (pin 19) and ground with a value between 4.7 uF and 10 uF rated at 16 V, per the Microchip 70290J datasheet. The VCAP pin is the internal 2.5 V regulator output for the core logic and MUST NOT be connected to VDD. Add 0.1 uF decoupling on every VDD/VSS pair, placed within 2 mm of the respective pin.
Keep ADC analog traces (AN0-AN4 on pins 29-33) short and away from PWM switching traces to avoid digital coupling into the ADC samples. Use a separate analog ground island for AVSS that joins the digital ground at a single point near the QFN EP ground. For motor-control designs, route the current-sense traces as a differential pair to minimize ground bounce coupling into the ADC conversion result.
Do not leave the MCLR pin (pin 38) floating - tie it to VDD through a 10 kohm pull-up resistor for normal operation, and add a 100 nF capacitor to ground for noise immunity during in-circuit programming. Forgetting the MCLR pull-up is one of the most common debugging problems with Microchip DSC designs. The OSC1/OSC2 pins (36, 37) require a proper crystal or external clock source - leaving them floating causes the FRC to default but may produce unreliable startup in some lots.
Estimated: at 40 MHz core clock, peak IDD is approximately 70 mA per Microchip 70290J typical characteristics; design the 3.3 V regulator with at least 25% headroom to avoid LDO dropout during ADC sampling peaks. Programming/debugging requires ICSP connections on PGEC2/PGED2 (pins 39-40) plus MCLR - keep these traces short and isolated from PWM switching to avoid programming failures in noisy motor-drive environments.
Compliance Information
RoHS compliant per Microchip product page; industrial temperature grade only - AEC-Q100 not qualified. Lead-free and halogen-free per Microchip environmental compliance documentation. Pb-free reflow profile JEDEC J-STD-020.
