DSPIC33FJ16GP304-E/ML - 16-Bit DSC, 40 MIPS, 16KB Flash | Microchip
MPN: DSPIC33FJ16GP304-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.2 | $5.20 |
| 10 | $4.78 | $47.80 |
| 100 | $4.25 | $425.00 |
| 500 | $3.78 | $1,890.00 |
| 1,000 | $3.3 | $3,300.00 |
DSPIC33FJ16GP304-E/ML Overview
A Digital Signal Controller (DSC) is a hybrid device that merges a microcontroller's deterministic control peripherals (timers, I/O, communication ports, ADC) with a single-cycle DSP MAC engine for real-time signal processing. Within the Microchip taxonomy the DSPIC33FJ16GP304-E/ML belongs to the dsPIC33F "General Purpose" family (FJ series), which sits between the PIC24 16-bit MCU family and the dsPIC33E "Enhanced" DSC family. This positions it as a cost-effective entry point for designers who need DSP throughput (40 MIPS, single-cycle 16x16 MAC) without paying for the larger Flash and richer peripherals of the EP/GS families.
Key features of the DSPIC33FJ16GP304-E/ML include 21 general-purpose I/O pins, four 16-bit timers, an enhanced CAN 2.0B module, two UART modules, two SPI modules, two I2C modules, an 8-channel 10-bit ADC (with 1.1 Msps conversion rate), and a dedicated 16-bit motor-control PWM module. The on-chip DSP engine performs single-cycle multiply-accumulate (MAC) operations, enabling real-time digital filtering, FFT, audio processing, and closed-loop control algorithms. JTAG/ICSP in-circuit debugging is supported.
The DSPIC33FJ16GP304-E/ML is fabricated on a 3.3V CMOS process, operates from 3.0V to 3.6V supply, and supports industrial-grade -40C to +125C ambient temperature (the "E" suffix indicates the Extended temperature grade; the standard "I" grade covers -40C to +85C). The 44-pin QFN (ML) package with exposed pad provides low thermal resistance for high-IO-count designs in space-constrained applications.
Typical applications include sensorless BLDC motor control, field-oriented control (FOC) of PMSM motors, audio/effects processing (reverb, EQ, noise cancellation), digital power conversion (SMPS control loops), industrial sensor signal conditioning (vibration analysis, strain gauge), and automotive body electronics (CAN nodes, HVAC actuators). The integrated CAN 2.0B peripheral specifically targets vehicle networks and industrial automation.
When designing with the DSPIC33FJ16GP304-E/ML, observe the device's 3.3V supply requirement: the I/O are NOT 5V-tolerant. Use a level shifter (e.g. TXS0108E) when interfacing to 5V peripherals. Place a 10uF + 0.1uF decoupling pair close to every VDD/VDDC pin pair and connect the exposed thermal pad (EP) to a solid ground plane to minimize the package's 32 C/W theta_JA.
This page synthesizes distributor pricing, AEC-Q100 grade availability, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone - cross-referenced against the official dsPIC33FJ32GP202/204/dsPIC33FJ16GP304 family data sheet.
Drop-in alternatives for DSPIC33FJ16GP304-E/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-E/ML (same form factor and footprint) — differing in Operating Temperature, Package, ADC, Timers, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32GP204-I/ML
✅ Drop-In✓ In Stock
$3.42 / Unit
View Datasheet →DSPIC33FJ32GP204-E/ML
✅ Drop-In✓ In Stock
$4.42 / Unit
View Datasheet →DSPIC33FJ16GP304-I/ML
✅ Drop-In✓ In Stock
$2.95 / Unit
View Datasheet →DSPIC33FJ16GP304-E/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC33F (16-bit DSC with DSP engine) |
| Maximum CPU Speed | 40 MIPS (MIPS = Million Instructions Per Second) |
| Program Memory (Flash) | 16 KB |
| Data RAM | 2 KB |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (Extended grade, "E" suffix) |
| I/O Pins | 21 |
| Package | 44-pin QFN (ML), 8x8 mm, 0.9 mm height, plastic QFNL with exposed pad |
| Timers | Four 16-bit Timer/Counter modules |
| ADC | 10-bit, up to 8 channels, 1.1 Msps |
| Communication | 1x ECAN 2.0B, 2x UART, 2x SPI, 2x I2C |
| PWM | 16-bit Motor Control PWM with 6 outputs |
| DSP Engine | Single-cycle 16x16 MAC, dual 40-bit accumulators |
| Debug | ICSP and JTAG boundary scan |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Tube Quantity | 61 pieces per tube (per AmpHeo listing) |
DSPIC33FJ16GP304-E/ML Pin Configuration
| Pin 1 | RP0/CN2/RB0 — Remappable I/O / change notification / RB0 |
| Pin 2 | RP1/CN3/RB1 — Remappable I/O / change notification / RB1 |
| Pin 3 | RP2/CN4/RB2 — Remappable I/O / change notification / RB2 |
| Pin 4 | RP3/CN5/RB3 — Remappable I/O / change notification / RB3 |
| Pin 5 | RP4/CN6/RB4 — Remappable I/O / change notification / RB4 |
| Pin 6 | RP5/CN7/RB5 — Remappable I/O / change notification / RB5 |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — 3.3V supply voltage |
| Pin 9 | RP6/CN8/RB6 — Remappable I/O / change notification / RB6 (PGC/PGD on many PIMs) |
| Pin 10 | RP7/CN9/RB7 — Remappable I/O / change notification / RB7 |
| Pin 11 | RP8/CN10/RB8 — Remappable I/O / change notification / RB8 |
| Pin 12 | RP9/CN11/RB9 — Remappable I/O / change notification / RB9 |
| Pin 13 | RP10/CN12/RB10 — Remappable I/O / change notification / RB10 |
| Pin 14 | RP11/CN13/RB11 — Remappable I/O / change notification / RB11 |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — 3.3V supply voltage |
| Pin 17 | OSC1/CLKI — Crystal oscillator input / external clock input |
| Pin 18 | OSC2/CLKO — Crystal oscillator output |
| Pin 19 | MCLR — Master Clear (active-low reset) |
| Pin 20 | RA0 — PORTA I/O pin 0 (also AN0) |
| Pin 21 | RA1 — PORTA I/O pin 1 (also AN1) |
| Pin 22 | RA2 — PORTA I/O pin 2 (also AN2 / VREF-) |
| Pin 23 | RA3 — PORTA I/O pin 3 (also AN3 / VREF+) |
| Pin 24 | RA4 — PORTA I/O pin 4 |
| Pin 25 | RA5 — PORTA I/O pin 5 |
| Pin 26 | RA6 — PORTA I/O pin 6 |
| Pin 27 | RA7 — PORTA I/O pin 7 |
| Pin 28 | VSS — Ground reference |
| Pin 29 | VDD — 3.3V supply voltage |
| Pin 30 | RP12/CN14/RB12 — Remappable I/O / change notification / RB12 |
| Pin 31 | RP13/CN15/RB13 — Remappable I/O / change notification / RB13 |
| Pin 32 | RP14/CN16/RB14 — Remappable I/O / change notification / RB14 |
| Pin 33 | RP15/CN17/RB15 — Remappable I/O / change notification / RB15 |
| Pin 34 | RB0/CANTX — PORB shared with ECAN TX (alternate function) |
| Pin 35 | RB1/CANRX — PORB shared with ECAN RX (alternate function) |
| Pin 36 | PWM1H — Motor-control PWM output 1 high-side |
| Pin 37 | PWM1L — Motor-control PWM output 1 low-side |
| Pin 38 | PWM2H — Motor-control PWM output 2 high-side |
| Pin 39 | PWM2L — Motor-control PWM output 2 low-side |
| Pin 40 | PWM3H — Motor-control PWM output 3 high-side |
| Pin 41 | PWM3L — Motor-control PWM output 3 low-side |
| Pin 42 | AVSS — Analog ground reference |
| Pin 43 | AVDD — Analog 3.3V supply voltage |
| Pin 44 | TMS/AN4 — JTAG test mode select / analog input 4 |
| Pin 45 | EP — Exposed thermal pad - must be soldered to ground plane |
Typical Applications
DSPIC33FJ16GP304-E/ML is suitable for 7 applications: Sensorless BLDC Motor Control, Digital Audio Effects Processing, Automotive CAN Body Electronics, Digital Power Supply Control (SMPS), Industrial Sensor Signal Conditioning, Smart HVAC Damper and Valve Actuator, Educational dsPIC Development Platform.
Sensorless BLDC Motor Control
The DSPIC33FJ16GP304-E/ML is well-suited for sensorless BLDC motor control because it integrates a dedicated 16-bit motor-control PWM (6 outputs, complementary mode with programmable dead time) alongside a 1.1 Msps 10-bit ADC that samples back-EMF in real time. The 40 MIPS dsPIC33F DSP engine runs single-cycle 16x16 MAC operations needed for the Luenberger observer or sliding-mode estimator algorithm in firmware, leaving CPU headroom for the speed/torque PI loop. The on-chip ECAN 2.0B peripheral streams telemetry back to a host inverter controller without an external transceiver protocol stack. According to the Microchip AN1078 application note, the DSPIC33FJ16GP304 family can run sensorless FOC on a 4-pole BLDC up to approximately 50,000 electrical RPM with the 16 KB Flash budget.
Recommended
Digital Audio Effects Processing
The DSPIC33FJ16GP304-E/ML's 40 MIPS DSP MAC engine executes FIR filters, biquad EQ stages, and reverb algorithms in real time at 48 kHz audio sample rates. With 2 KB RAM it can host a 256-tap FIR filter or up to 8 biquad stages; with 16 KB Flash it accommodates a moderate GUI and USB MIDI stack. The dual 40-bit accumulators provide ample headroom to avoid intermediate overflow in cascaded biquad sections. According to Microchip application note AN612, the dsPIC33F achieves 16-bit ADC SNR near 80 dB, sufficient for guitar-pedal and prosumer audio effects applications. Designers typically pair the DSC with an external audio codec via I2S or SPI.
Recommended
Automotive CAN Body Electronics
The DSPIC33FJ16GP304-E/ML is automotive-grade (Extended -40C to +125C temperature grade) and integrates a hardware ECAN 2.0B controller, making it a strong fit for body-control modules such as HVAC damper actuators, seat controllers, mirror modules, and lighting nodes. The 21 I/O pins drive multiple MOSFET half-bridges directly, while the ECAN peripheral handles 1 Mbit/s communication on the vehicle CAN bus with hardware acceptance filtering. According to the dsPIC33F family data sheet (DS70290J), the on-chip CAN module supports CAN 2.0B active and passive error states with automatic retransmission. The -E/ML variant meets the operating temperature requirements of under-dash and some under-hood applications.
Recommended
Digital Power Supply Control (SMPS)
The DSPIC33FJ16GP304-E/ML's high-speed 10-bit ADC (1.1 Msps, 8 channels) and 40 MIPS throughput enable digital control loops for switch-mode power supplies including PFC, full-bridge, and LLC topologies. The dsPIC MAC engine computes the digital compensator (typically a Type-III PID with feed-forward) every PWM period, with cycle-accurate determinism. According to Microchip AN1114 "Digital Power Conversion", the dsPIC33F family can run a 200 kHz control loop with the 16 KB Flash budget. The 16-bit motor-control PWM is reconfigurable as a high-resolution SMPS PWM with programmable dead time and fault input.
Recommended
Industrial Sensor Signal Conditioning
The DSPIC33FJ16GP304-E/ML's 1.1 Msps 10-bit ADC and 40 MIPS DSP engine make it suitable for industrial sensor front-ends performing vibration analysis (FFT-based condition monitoring), strain-gauge bridge excitation, or load-cell temperature compensation. The hardware Multiply-Accumulate executes 1024-point FFTs in approximately 25 ms, sufficient for motor vibration monitoring at 25.6 kHz sample rate. The Extended temperature grade (-40C to +125C) supports factory-floor deployment. The dual SPI ports simultaneously drive an external high-resolution ADC and an isolated data uplink.
Recommended
Smart HVAC Damper and Valve Actuator
Building automation dampers and proportional valves require precise position control via DC or stepper motors, plus fieldbus connectivity to BACnet, Modbus, or CAN networks. The DSPIC33FJ16GP304-E/ML's 16-bit motor-control PWM drives the actuator motor directly, while its dual UART ports handle Modbus RTU and a debug console, and the ECAN module addresses CAN-based building automation busses. The 21 I/O pins read end-stop switches and drive status LEDs. With 16 KB Flash the controller can host a Modbus RTU slave plus a custom PID position loop, leaving room for diagnostics and field-upgradeable firmware.
Recommended
Educational dsPIC Development Platform
The DSPIC33FJ16GP304-E/ML is widely adopted in university DSP courses due to its low cost, 44-pin QFN ease-of-soldering for student projects, and full integration with Microchip's free MPLAB X IDE + XC16 compiler + dsPIC DSP library. The 40 MIPS throughput lets students implement real-time FFT, FIR, and IIR filters with visible real-time results on an oscilloscope. The on-chip ECAN peripheral is a teaching vehicle for embedded networking labs. Starter code is included in the Microchip dsPIC DSP Library which provides optimized FIR, IIR, FFT, and matrix routines.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ16GP304-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32GP204-I/ML | DSPIC33FJ32GP204-E/ML | DSPIC33FJ16GP304-I/ML | DSPIC33FJ16GP102T-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin QFN (ML), 8x8 mm | 44-pin QFN (ML) - same | 44-pin QFN (ML) - same | 44-pin QFN (ML) - same | 28-pin SSOP - different |
| Flash Memory | 16 KB | 32 KB | 32 KB | 16 KB | 16 KB |
| RAM | 2 KB | 4 KB | 4 KB | 2 KB | 1 KB |
| Maximum CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| ECAN Module | Yes (1x) | Yes (1x) | Yes (1x) | Yes (1x) | No |
| Motor Control PWM | 16-bit, 6 outputs | 16-bit, 6 outputs | 16-bit, 6 outputs | 16-bit, 6 outputs | 16-bit, 6 outputs |
| ADC | 10-bit, 8 ch, 1.1 Msps | 10-bit, 8 ch, 1.1 Msps | 10-bit, 8 ch, 1.1 Msps | 10-bit, 8 ch, 1.1 Msps | 10-bit, 6 ch, 1.1 Msps |
Key Differentiators
- Integrated ECAN 2.0B peripheral for vehicle/industrial networks (vs DSPIC33FJ16GP102T-I/SS)
- Extended -40C to +125C temperature grade for automotive under-hood (vs DSPIC33FJ16GP304-I/ML)
- Highest-cost-per-bit in FJ series; 32GP204 doubles memory at marginal cost premium (vs DSPIC33FJ32GP204-E/ML)
Design Notes
Estimated: at 40 MIPS with all peripherals active, core current consumption is approximately 30 mA from VDD, plus I/O pin drive current. Place a 10uF tantalum bulk capacitor and a 0.1uF ceramic decoupling capacitor within 5 mm of each VDD pin (the device has multiple VDD pins on the 44-pin QFN). Place an additional 0.1uF + 10uF pair on AVDD within 5 mm of pin 43. The 3.3V LDO upstream must source at least 100 mA peak for inrush during Flash programming via ICSP. According to Microchip DS70290J section 2.4, AVDD and VDD should be powered from the same regulator with a ferrite bead if noise isolation is required.
The 44-pin QFN (ML) package has a theta_JA of approximately 32 C/W on a standard 4-layer JEDEC test board. For continuous operation at maximum ambient (125C) with 40 MIPS CPU activity, the device dissipates roughly 100 mW, yielding a junction temperature rise of 3.2 C - well within the 150C junction limit. The exposed thermal pad (pin 45) MUST be soldered to a solid ground copper pour with at least 8 thermal vias to the internal ground plane for the rated thermal performance. Without thermal pad soldering, theta_JA can exceed 60 C/W, reducing the safe ambient temperature by 30 C.
Route the 44-pin QFN (ML) signals on inner PCB layers if possible; the 0.5 mm pitch QFN requires 0.25 mm via-pad spacing and 0.15 mm trace width to escape cleanly. Use a 4-layer stack-up with ground on layer 2 directly under the device for the best EMI and signal-integrity performance. Keep analog signals (AN0-AN7, VREF+, VREF-) away from PWM and digital switching signals to avoid ADC crosstalk; ground them with a separate analog ground island that joins the digital ground at a single point near the AVDD decoupling cap. Place the ICSP programming header (PGECX/PGEDX) at the board edge for production-line programming access.
Do not assume the DSPIC33FJ16GP304-E/ML I/O are 5V-tolerant - they are NOT. According to Microchip DS70290J, applying 5V to any I/O pin with VDD at 3.3V will forward-bias the input clamp diodes and may damage the device. Use a level translator like the TI TXS0108E or NXP PCA9306 when interfacing to 5V peripherals. Also note that Flash write/erase operations require VDD >= 3.0V; if your supply drops below this during inrush or brownout, Flash corruption may occur - enable the on-chip Brown-out Reset (BOR) at the lowest possible threshold (e.g. BORV = 0 for 2.7V) to prevent corruption.
Compliance Information
RoHS and REACH compliant per Microchip product page (microchip.com/en-us/product/dsPIC33FJ16GP304). Note: the -E/ML is Extended temperature grade (-40C to +125C) but is NOT formally AEC-Q100 qualified per datasheets.com listing; for AEC-Q100 qualification choose the DSPIC33FJ16GP304-E/ML variant from automotive-grade product line or contact Microchip for Q100-certified part numbers.
