DSPIC33FJ128GP802-E/SP - 16-Bit DSC 128KB Flash 40MIPS | Microchip
MPN: DSPIC33FJ128GP802-E/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.16 | $61.60 |
| 100 | $5.48 | $548.00 |
| 500 | $4.93 | $2,465.00 |
| 1,000 | $4.38 | $4,380.00 |
DSPIC33FJ128GP802-E/SP Overview
A Digital Signal Controller is a hybrid device that merges the real-time control capabilities of a microcontroller (MCU) with the mathematical throughput of a Digital Signal Processor (DSP). In the product hierarchy, the dsPIC33F DSC sits between general-purpose 16-bit MCUs such as the PIC24 family and dedicated DSPs, offering a single-chip solution for closed-loop control, digital filtering, and motor drive algorithms. The dsPIC33FJ128GP802 integrates a 16-bit ALU, a hardware barrel shifter, and a 17x17-bit single-cycle multiplier that together execute DSP instructions such as MAC (multiply-accumulate) in a single clock cycle.
Key features include 40 MIPS operation at 80 MHz, 128 KB Flash, 16 KB SRAM, a 10-bit ADC with up to 16 channels, three 16-bit timers, two UART modules, SPI and I2C interfaces, and a Parallel Master Port (PMP) for external memory or display interfacing. The device also provides a Real-Time Clock and Calendar (RTCC) and up to 21 general-purpose I/O pins.
The DSP engine supports fractional and integer arithmetic, saturation logic, and a 40-bit accumulator, enabling efficient implementation of FIR/IIR filters, PID controllers, and Park/Clarke transforms used in field-oriented motor control. The 128 KB Flash allows substantial application code plus bootloader and calibration tables without external memory.
Typical applications include brushless DC (BLDC) and permanent magnet synchronous motor (PMSM) control, digital power conversion (DC-DC, PFC, inverters), sensorless motor drives, audio processing, and industrial automation. The 28-pin SPDIP package suits breadboard prototyping, socketed designs, and legacy through-hole production lines.
When designing with this device, decouple VDD pins with 0.1 uF ceramic capacitors placed close to each pin, and provide a clean 3.3 V rail. The extended temperature grade (-E) supports operation up to +125C, but thermal derating and adequate copper area are required at the upper limit. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ128GP802-E/SP — 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 DSPIC33FJ128GP802-E/SP (same form factor and footprint) — differing in ADC Resolution, Package, Timers, Core Architecture, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ128GP802-I/SP
✅ Drop-In✓ In Stock
$4.95 / Unit
View Datasheet →DSPIC33FJ128GP802T-E/SP
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ128GP202-I/SP
✅ Drop-In✓ In Stock
$3.42 / Unit
View Datasheet →DSPIC33FJ128GP802-E/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC33F 16-bit DSC |
| Maximum CPU Speed | 40 MIPS at 80 MHz |
| Program Flash Memory | 128 KB (128K x 8) |
| SRAM | 16 KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Operating Temperature Range | -40C to +125C (Extended) |
| Package | 28-pin SPDIP (Skinny Plastic DIP) |
| Mounting Type | Through-Hole |
| ADC Resolution | 10-bit |
| ADC Channels | Up to 16 |
| Timers | 3 x 16-bit |
| UART Modules | 2 |
| SPI Modules | 2 |
| I2C Modules | 2 |
| Parallel Master Port (PMP) | Yes |
| Real-Time Clock/Calendar (RTCC) | Yes |
| General Purpose I/O Pins | Up to 21 |
| Multiplier | 17 x 17-bit single-cycle |
| Automotive Qualification | AEC-Q100 (per distributor data) |
| RoHS Status | Compliant |
| Packaging | Tube |
| Factory Pack Quantity | 40 |
DSPIC33FJ128GP802-E/SP Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | EMUD2/AN0/RB0 — Emulator data / Analog input 0 / Digital I/O RB0 |
| Pin 3 | AN1/RB1 — Analog input 1 / Digital I/O RB1 |
| Pin 4 | AN2/RB2 — Analog input 2 / Digital I/O RB2 |
| Pin 5 | AN3/RB3 — Analog input 3 / Digital I/O RB3 |
| Pin 6 | AN4/RB4 — Analog input 4 / Digital I/O RB4 |
| Pin 7 | AN5/RB5 — Analog input 5 / Digital I/O RB5 |
| Pin 8 | VSS — Ground |
| Pin 9 | OSC1/CLKI/AN6/RB6 — Primary oscillator input / Analog input 6 / Digital I/O RB6 |
| Pin 10 | OSC2/CLKO/AN7/RB7 — Primary oscillator output / Analog input 7 / Digital I/O RB7 |
| Pin 11 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 12 | PGED1/AN8/RB8 — Programming data / Analog input 8 / Digital I/O RB8 |
| Pin 13 | PGEC1/AN9/RB9 — Programming clock / Analog input 9 / Digital I/O RB9 |
| Pin 14 | AN10/RB10 — Analog input 10 / Digital I/O RB10 |
| Pin 15 | AN11/RB11 — Analog input 11 / Digital I/O RB11 |
| Pin 16 | AN12/RB12 — Analog input 12 / Digital I/O RB12 |
| Pin 17 | AN13/RB13 — Analog input 13 / Digital I/O RB13 |
| Pin 18 | AN14/RB14 — Analog input 14 / Digital I/O RB14 |
| Pin 19 | AN15/RB15 — Analog input 15 / Digital I/O RB15 |
| Pin 20 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 21 | U1RX/RP10/RC10 — UART1 receive / Remappable pin / Digital I/O RC10 |
| Pin 22 | U1TX/RP11/RC11 — UART1 transmit / Remappable pin / Digital I/O RC11 |
| Pin 23 | SDA1/RP12/RC12 — I2C1 data / Remappable pin / Digital I/O RC12 |
| Pin 24 | SCL1/RP13/RC13 — I2C1 clock / Remappable pin / Digital I/O RC13 |
| Pin 25 | RP14/RC14 — Remappable pin / Digital I/O RC14 |
| Pin 26 | RP15/RC15 — Remappable pin / Digital I/O RC15 |
| Pin 27 | VSS — Ground |
| Pin 28 | AVDD — Analog positive supply |
Typical Applications
DSPIC33FJ128GP802-E/SP is suitable for 6 applications: Brushless DC (BLDC) Motor Control, Digital Power Conversion (DC-DC and PFC), Industrial Sensor Signal Processing, Audio Processing and Effects, Breadboard and Educational Prototyping, Automotive Body and Powertrain Control.
Brushless DC (BLDC) Motor Control
The DSPIC33FJ128GP802-E/SP fits BLDC motor control because its dsPIC33F core executes single-cycle 17x17-bit multiply-accumulate operations, enabling real-time Park and Clarke transforms and PID current loops at 40 MIPS. The 10-bit ADC with up to 16 channels samples phase currents and back-EMF signals, while three 16-bit timers generate commutation timing. In a typical three-phase inverter, the DSC runs a field-oriented control loop at 10-20 kHz, reading shunt or Hall sensor feedback and updating PWM duty cycles. The 128 KB Flash stores the control algorithm plus calibration tables, and the 16 KB SRAM holds filter state variables. Unlike a general-purpose MCU, the DSC's fractional arithmetic and saturation logic prevent overflow in fixed-point control math, but designers must still budget ADC conversion time against the control loop period.
Recommended
Digital Power Conversion (DC-DC and PFC)
The DSPIC33FJ128GP802-E/SP is well suited to digital power conversion because its 40 MIPS core and single-cycle MAC can close a current-mode control loop for a DC-DC converter or power factor correction (PFC) stage at switching frequencies up to several hundred kHz. The 10-bit ADC samples output voltage and inductor current, and the on-chip PWM module updates duty cycle each switching period. The 128 KB Flash accommodates soft-start ramps, fault handling, and communication stacks, while the RTCC provides timestamping for event logging. In a typical boost PFC design, the DSC implements average current-mode control with a 100 kHz switching frequency, achieving power factor above 0.99. The main trade-off versus an analog controller is firmware development effort, but the DSC enables adaptive control and digital telemetry not possible with analog loops.
Recommended
Industrial Sensor Signal Processing
The DSPIC33FJ128GP802-E/SP suits industrial sensor signal processing because its DSP engine implements FIR and IIR digital filters in real time, removing analog filter components and improving noise immunity. The 10-bit ADC with up to 16 channels digitizes signals from strain gauges, thermocouples, or accelerometers, and the 17x17-bit multiplier executes filter taps in a single cycle. A typical application runs a 64-tap FIR filter at 10 kHz sampling rate, consuming only a fraction of the 40 MIPS budget. The 16 KB SRAM holds filter delay lines and calibration coefficients, while the 128 KB Flash stores the filter program and lookup tables. The extended -40C to +125C rating allows deployment in harsh factory environments, but designers should add input protection and anti-aliasing filters ahead of the ADC pins.
Recommended
Audio Processing and Effects
The DSPIC33FJ128GP802-E/SP can implement real-time audio processing because its 40 MIPS core and single-cycle MAC execute biquad filters, delay lines, and mixing algorithms at standard sample rates. At 48 kHz sampling, the device has roughly 800 instructions per sample, enough for several cascaded IIR filters plus gain and pan control. The 10-bit ADC is adequate for voice-grade and effects processing, though not for high-fidelity audio, and the 16 KB SRAM supports short delay buffers for echo or reverb effects. The 128 KB Flash stores filter coefficients and effect presets. Designers should note that the 10-bit ADC limits dynamic range to about 60 dB, so for 16-bit audio applications an external codec connected via SPI or I2C is recommended.
Recommended
Breadboard and Educational Prototyping
The DSPIC33FJ128GP802-E/SP is ideal for breadboard and educational prototyping because its 28-pin SPDIP through-hole package plugs directly into standard 0.1-inch breadboards and DIP sockets without adapter boards. Students and engineers can wire the device on a solderless breadboard, program it via the ICSP pins, and observe DSP algorithm behavior in real time. The 128 KB Flash and 16 KB SRAM provide ample room for teaching examples such as FIR filters, FFT, and PID control. The extended temperature rating is not required for lab use, but the through-hole package avoids the soldering and reflow equipment needed for QFN or TQFP variants. Microchip's Explorer 16/32 development board supports the dsPIC33F family through processor plug-in modules for structured learning.
Recommended
Automotive Body and Powertrain Control
The DSPIC33FJ128GP802-E/SP is applicable to automotive body and powertrain control because distributor data lists the device as AEC-Q100 qualified and the -E temperature grade covers -40C to +125C, matching under-hood and cabin electronics requirements. The 40 MIPS core handles sensor fusion and actuator control, while the 10-bit ADC reads temperature, position, and current sensors. The 128 KB Flash supports bootloader-based field updates, and the RTCC provides timekeeping for event logging. In a typical body control module, the DSC manages window lift, lighting, and HVAC actuators over LIN or CAN gateways. Designers must verify the specific AEC-Q100 qualification level and add automotive-grade external components, since the qualification applies to the die and package but not to the surrounding circuit.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ128GP802-E/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ128GP802-I/SP | DSPIC33FJ128GP802T-E/SP | DSPIC33FJ128GP202-I/SP | DSPIC33FJ128GP802-E/MM |
|---|---|---|---|---|---|
| Package | 28-pin SPDIP | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin QFN - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Temperature Range | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +125C |
| Program Flash | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| CPU Speed | 40 MIPS at 80 MHz | 40 MIPS at 80 MHz | 40 MIPS at 80 MHz | 40 MIPS at 80 MHz | 40 MIPS at 80 MHz |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Parallel Master Port (PMP) | Yes | Yes | Yes | No | Yes |
| Mounting Type | Through-Hole | Through-Hole | Through-Hole | Through-Hole | Surface Mount |
| Packaging | Tube (40 per tube) | Tube | Tape & Reel | Tube | Tube |
Key Differentiators
- Extended temperature rating (vs DSPIC33FJ128GP802-I/SP)
- Through-hole SPDIP package (vs DSPIC33FJ128GP802-E/MM)
- Full peripheral set including PMP (vs DSPIC33FJ128GP202-I/SP)
Design Notes
Decouple every VDD pin (pins 11 and 20) and the AVDD pin (pin 28) with a 0.1 uF ceramic capacitor placed within 5 mm of the pin, plus a 10 uF bulk capacitor on the 3.3 V rail. The dsPIC33F PLL and 10-bit ADC are sensitive to supply noise; a ferrite bead between the digital VDD and AVDD rails further isolates ADC noise. Estimated: at 40 MIPS and 3.3 V, core current is roughly 60-80 mA, so the bulk capacitor should be sized for at least 10 uF to hold the rail during transient load steps.
Keep the MCLR pin (pin 1) pulled up to VDD through a 10 kOhm resistor and place a 0.1 uF capacitor from MCLR to VSS for reliable reset. Route the ICSP programming pins (PGED1/PGEC1 on pins 12 and 13) to a 5-pin header with short traces to avoid programming failures. For the 28-pin SPDIP package, use a socket if the device will be reprogrammed frequently, and keep the oscillator traces on pins 9 and 10 as short as possible when using an external crystal.
Do not exceed the 3.6 V maximum supply voltage, and do not apply more than VDD + 0.3 V to any I/O pin. The 10-bit ADC has a maximum input range of AVDD and AVSS; signals outside this range require external clamping. When migrating from the -I/SP to the -E/SP grade, verify that all external components are also rated for +125C, since the DSC's extended rating does not extend to the surrounding circuit. Estimated: at +125C ambient, derate the maximum operating frequency if the package thermal resistance and board copper area cannot dissipate the core power.
Compliance Information
Distributor data (datasheets.com) lists the DSPIC33FJ128GP802-E/SP as RoHS compliant and AEC-Q100 automotive qualified. REACH, halogen-free, and conflict-minerals status were not stated in the provided data and are marked unknown.
