DSPIC33FJ12GP202-E/SS - 40 MIPS 16-bit DSC, 12KB Flash | Microchip
MPN: DSPIC33FJ12GP202-E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.88 | $48.80 |
| 100 | $4.35 | $435.00 |
| 500 | $3.78 | $1,890.00 |
| 1,000 | $3.22 | $3,220.00 |
DSPIC33FJ12GP202-E/SS Overview
A Digital Signal Controller (DSC) is a hybrid architecture that combines the deterministic interrupt response and peripheral set of a microcontroller with the single-cycle MAC (multiply-accumulate) DSP engine needed for high-speed math. Within the broader taxonomy, the dsPIC33F sits between traditional 16-bit MCUs (PIC24F/H) and higher-end 32-bit Cortex-M parts, making it a natural fit for cost-sensitive embedded signal processing where deterministic real-time behavior matters more than raw clock speed.
Key features of this variant include the extended (E) operating temperature range of -40C to +125C, Peripheral Pin Select (PPS) for flexible digital peripheral remapping, 5V-tolerant digital inputs with 3.0-3.6V output drive, and the nanoWatt Technology power management suite for sleep-mode current reduction. The 40 MIPS core executes most instructions in one cycle, while the DSP engine adds a 40-bit accumulator and barrel shifter for sensor and audio DSP.
Architecturally, the device uses a Harvard bus with separate program and data paths, a hardware DSP engine (single-cycle 16x16 MAC), and peripherals that include multiple timers, a 10-bit A/D converter (ADC) with up to 1 Msps, UART, I2C, SPI, and Input Capture/Output Compare/PWM modules. The E suffix designates the -40C to +125C industrial/automotive temperature range, and the SSOP package is the 28-pin 5.30 mm-wide Shrink Small Outline Package.
Typical applications include automotive sensor signal conditioning, motor control preprocessing, low-cost audio processing, sensor fusion front-ends, and general-purpose embedded control where DSP math is needed. The extended temperature range also makes the part suitable for industrial and AEC-Q100-grade automotive deployments when paired with appropriate system-level qualification.
When designing with this DSC, plan oscillator and PLL configuration carefully because MIPS scaling affects both DSP throughput and ADC acquisition timing. Use PPS to route digital peripherals to convenient pins without PCB rework, and observe the 5V-tolerant input and 3.3V output drive limits when interfacing to legacy 5V logic.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33FJ12GP202-E/SS — 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 DSPIC33FJ12GP202-E/SS (same form factor and footprint) — differing in ADC, Core Architecture, Maximum CPU Speed, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ12GP201-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ12GP202-I/SS
✅ Drop-In✓ In Stock
$3.45 / Unit
View Datasheet →DSPIC33FJ12GP202T-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ12GP202-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ12MC202-E/SO
✅ Drop-In✓ In Stock
$3.21 / Unit
View Datasheet →DSPIC33FJ12GP202-E/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC33F (16-bit DSC with DSP engine) |
| CPU Type | 16-bit Modified Harvard |
| Maximum CPU Speed | 40 MIPS (50 ns instruction cycle) |
| Program Memory (Flash) | 12 KB (12K x 8) |
| Data Memory (SRAM) | 1 KB |
| I/O Pins | 21 programmable digital I/O |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (E suffix, extended) |
| Digital Input Voltage Tolerance | 5 V tolerant |
| Output Drive Voltage | 3.0 V to 3.6 V (5 V with open-drain) |
| ADC | 10-bit, up to 1 Msps (per datasheet family) |
| DSP Engine | Single-cycle 16x16 MAC, 40-bit accumulator |
| Peripheral Pin Select (PPS) | Yes - remappable digital peripherals |
| Communication Interfaces | UART, SPI, I2C |
| Timer Modules | Multiple 16-bit timers (per family datasheet) |
| Package | 28-pin SSOP (5.30 mm body width) |
| Mounting Type | Surface Mount |
| Power-Saving Modes | nanoWatt Technology sleep/idle |
| ICSP Programming | In-Circuit Serial Programming via PGECx/PGEDx |
| RoHS Status | Compliant |
DSPIC33FJ12GP202-E/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | RA0/VREF+/CVREF+/AN0 — Port A bit 0 / positive voltage reference / AN0 analog input |
| Pin 3 | RA1/VREF-/CVREF-/AN1 — Port A bit 1 / negative voltage reference / AN1 analog input |
| Pin 4 | RA2/AN2 — Port A bit 2 / AN2 analog input |
| Pin 5 | RA3/AN3 — Port A bit 3 / AN3 analog input |
| Pin 6 | RA4 — Port A bit 4 (open-drain capable) |
| Pin 7 | AVDD — Analog supply voltage |
| Pin 8 | AVSS — Analog ground |
| Pin 9 | OSC1/CLKIN/RA5 — Crystal oscillator input / external clock input / Port A bit 5 |
| Pin 10 | OSC2/CLKOUT/RA6 — Crystal oscillator output / clock output / Port A bit 6 |
| Pin 11 | RB0/PGED1/AN4 — Port B bit 0 / ICSP data / AN4 analog input |
| Pin 12 | RB1/PGEC1/AN5 — Port B bit 1 / ICSP clock / AN5 analog input |
| Pin 13 | RB2/AN6 — Port B bit 2 / AN6 analog input |
| Pin 14 | RB3/AN7 — Port B bit 3 / AN7 analog input |
| Pin 15 | VSS — Digital ground |
| Pin 16 | VDD — Digital supply voltage (3.0-3.6 V) |
| Pin 17 | RB4/PGED2 — Port B bit 4 / alternate ICSP data |
| Pin 18 | RB5/PGEC2 — Port B bit 5 / alternate ICSP clock |
| Pin 19 | RB6/PGC — Port B bit 6 / programming clock (shared) |
| Pin 20 | RB7/PGD — Port B bit 7 / programming data (shared) |
| Pin 21 | RC0 — Port C bit 0 |
| Pin 22 | RC1 — Port C bit 1 |
| Pin 23 | RC2 — Port C bit 2 |
| Pin 24 | RC3 — Port C bit 3 |
| Pin 25 | RC4 — Port C bit 4 |
| Pin 26 | RC5 — Port C bit 5 |
| Pin 27 | RC6 — Port C bit 6 |
| Pin 28 | RC7 — Port C bit 7 |
Typical Applications
DSPIC33FJ12GP202-E/SS is suitable for 7 applications: Automotive Sensor Signal Conditioning, Low-Cost Audio Signal Processing, Motor Control Preprocessing, Industrial Control and Automation, Power Conversion and SMPS Control, Sensor Fusion Front-Ends, Medical Device Signal Processing.
Automotive Sensor Signal Conditioning
The DSPIC33FJ12GP202-E/SS is well suited to automotive sensor conditioning loops where the single-cycle 16x16 MAC DSP engine and 40 MIPS throughput can run real-time filters on signals from pressure, temperature, or position sensors. Its -40C to +125C extended temperature grade aligns with under-hood and chassis AEC-Q100 use cases. A typical circuit places the DSC between the analog sensor front-end (with op-amp buffering and RC anti-aliasing) and a CAN/LIN transceiver, where the DSP runs a Kalman or FIR filter before passing the cleaned signal to the vehicle bus. The 10-bit ADC at up to 1 Msps captures the conditioned analog signal, while the integrated PWM drives actuator feedback. Compared with a generic PIC24F MCU, the DSP engine cuts filter computation latency by roughly 10x at the same clock speed.
Recommended
Low-Cost Audio Signal Processing
In cost-sensitive audio front-ends (intercoms, hearing aids, simple voice prompts, hands-free kits) the DSPIC33FJ12GP202-E/SS delivers sufficient DSP horsepower for sample-rate conversion, simple FIR/IIR filters, and basic noise suppression. The 40 MIPS core processes 16-bit audio samples at common 8 kHz to 48 kHz rates without saturating the CPU budget. A typical circuit streams I2S or PWM data from a microphone pre-amp into the DSC's ADC or I2S peripheral, runs a biquad filter chain on the DSP engine, then outputs the cleaned audio via the DAC or PWM. The 5V-tolerant digital inputs simplify interfacing to legacy 5V audio codecs, while the 3.3V core keeps power dissipation low. For premium audio, a dsPIC33FJ64 or higher would be needed, but this part hits the right cost/performance point for entry-level designs.
Recommended
Motor Control Preprocessing
The DSPIC33FJ12GP202-E/SS can handle the signal-processing front end of small BLDC or stepper motor control loops, including back-EMF filtering, sensor-fusion math, and speed calculation. The 40 MIPS DSP engine runs a single-cycle MAC that is fast enough to compute field-oriented control (FOC) preprocessing for low-RPM fans, pumps, and small appliances. While the dedicated MC variant (dsPIC33FJ12MC202) is preferable for full FOC motor loops, this GP variant is a strong choice when the motor control math is shared with broader system DSP duties. A typical hardware build places the DSC alongside gate drivers and a current-sense amplifier, with the ADC sampling phase currents and the PWM peripheral driving the inverter. The extended temperature range supports integration into industrial appliance enclosures.
Recommended
Industrial Control and Automation
Industrial PLC I/O modules, sensor hubs, and simple HMI controllers benefit from the DSPIC33FJ12GP202-E/SS's combination of 5V-tolerant inputs (for legacy industrial wiring), extended temperature grade, and DSP math for transducer linearization and noise rejection. In a typical 24V industrial environment, the DSC sits behind an isolated DC-DC converter and optocouplers, processing signals from 4-20 mA loops, RTDs, or digital sensors. The DSP engine runs polynomial correction on RTD readings, while UART/SPI/I2C peripherals communicate with upstream PLCs or HMIs. The Peripheral Pin Select feature is especially valuable here, letting engineers remap serial interfaces to convenient pins without spinning the PCB. Power dissipation is low thanks to nanoWatt Technology sleep modes during idle polling.
Recommended
Power Conversion and SMPS Control
Switch-mode power supply (SMPS) digital control loops running at modest switching frequencies (under 100 kHz) can use the DSPIC33FJ12GP202-E/SS as a low-cost DSP-based controller. The 40 MIPS core executes digital PID compensation, current-mode control, and input voltage feed-forward in real time, while the dedicated PWM peripheral drives the power stage. The DSP engine accelerates math such as RMS current calculation and adaptive dead-time insertion. A typical circuit has the DSC sampling the output voltage and inductor current through the ADC, computing the next PWM duty cycle, and driving a MOSFET or GaN half-bridge through an isolated gate driver. The extended temperature grade supports integration into industrial PSU chassis without additional cooling.
Recommended
Sensor Fusion Front-Ends
Wearable and IoT devices that combine accelerometers, gyroscopes, and magnetometers often offload sensor fusion math to a small DSC like the DSPIC33FJ12GP202-E/SS. The single-cycle 16x16 MAC DSP engine runs complementary or Kalman filters at low power, while the I2C/SPI peripherals interface with multiple MEMS sensors simultaneously. In a typical wearable IMU, the DSC samples 3-axis sensors at 100 Hz to 1 kHz, runs orientation math, and outputs quaternion or Euler-angle data over BLE UART to a host phone. The 3.3V core and nanoWatt sleep modes keep average power budget in the single-digit mW range, and the 5V-tolerant inputs allow direct connection to legacy sensor breakouts. The 28-SSOP footprint fits easily into compact wearable PCB layouts.
Recommended
Medical Device Signal Processing
Low-bandwidth medical instrumentation - pulse oximeters, simple ECG front-ends, glucose meters, and portable diagnostic aids - can use the DSPIC33FJ12GP202-E/SS to run DSP-based filtering and feature extraction on biosignals. The single-cycle MAC engine handles FIR/IIR filters and envelope detection at typical biosignal sample rates (250 Hz to 1 kHz) without taxing the CPU budget. A typical pulse-oximeter circuit uses the DSC's ADC to sample the photodiode signal after a transimpedance amplifier, runs a 50/60 Hz notch filter and a moving-average filter on the DSP engine, then computes SpO2 via the R-ratio method. The extended temperature grade supports portable enclosures used in ambulances and outdoor clinics. Designers should add IEC 60601 isolation as required by the application.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ12GP202-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ12GP201-E/SS | DSPIC33FJ12GP202-I/SS | DSPIC33FJ12GP202T-I/SS | DSPIC33FJ12GP202-E/SO | DSPIC33FJ12MC202-E/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SSOP | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SOIC (different land pattern, same pinout) | 28-pin SOIC (different land pattern, same pinout) |
| Core | dsPIC33F DSC, 16-bit | dsPIC33F DSC, 16-bit | dsPIC33F DSC, 16-bit | dsPIC33F DSC, 16-bit | dsPIC33F DSC, 16-bit | dsPIC33F DSC, 16-bit (motor-control optimized) |
| Maximum MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Program Flash | 12 KB | 12 KB | 12 KB | 12 KB | 12 KB | 12 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Temperature Grade | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) |
| DSP Engine | Single-cycle 16x16 MAC | Single-cycle 16x16 MAC | Single-cycle 16x16 MAC | Single-cycle 16x16 MAC | Single-cycle 16x16 MAC | Single-cycle 16x16 MAC + motor-control PWM |
Key Differentiators
- Extended -40C to +125C temperature grade with 5V-tolerant inputs in SSOP-28 (vs DSPIC33FJ12GP202-I/SS)
- Same SSOP-28 footprint as the GP201 sibling for design reuse (vs DSPIC33FJ12GP201-E/SS)
- Integrated DSP engine versus general-purpose PIC24 MCUs (vs PIC24FJ32MC101 in similar SSOP package)
Design Notes
The DSPIC33FJ12GP202-E/SS operates from a single 3.0-3.6 V supply on VDD with a separate AVDD pin that must be tied to the same rail through a ferrite bead or low-pass filter for noise isolation. Place a 10 uF bulk capacitor next to VDD and a 0.1 uF decoupling cap as close to each power pin as possible. The nanoWatt Technology sleep modes drop quiescent current to the microamp range when the DSP engine is idle, but always verify the wake-up time meets your real-time deadline before relying on sleep for power budgeting.
Route the ICSP pins (PGEC1/PGED1 and PGEC2/PGED2) with short, direct traces to the programming connector - per Microchip datasheet 70264E, long traces here cause programming failures in production. Use Peripheral Pin Select (PPS) to remap UART, SPI, and I2C to convenient physical pins without spinning the PCB; the PPS output mapping register must be unlocked by writing a key sequence before changes take effect. Keep the 28-SSOP land pattern within IPC-7351 tolerances to avoid solder bridging on the 0.65 mm pitch leads.
Estimated: at the maximum operating frequency of 40 MIPS (3.3 V VDD), the device core current is approximately 30-40 mA active, which yields roughly 100-130 mW power dissipation. The SSOP-28 package has a theta_JA around 80-90 C/W on a standard 4-layer JEDEC test board, giving a junction temperature rise of 8-12 C above ambient. For continuous operation at the upper end of the extended -40C to +125C temperature range, ensure ambient stays below 115 C or add copper-pour heatsinking around the SSOP leads.
Do not apply 5 V to any output pin - the DSPIC33FJ12GP202-E/SS outputs drive only 3.0-3.6 V (5 V with open-drain configuration). The 5 V tolerance applies to inputs only. Also, when migrating code from a PIC24F to the dsPIC33F, remember that the DSP engine registers (ACCALU/ACCAH, etc.) need explicit initialization even if you do not use DSP instructions, otherwise uninitialized accumulator state can cause intermittent test failures.
The 10-bit ADC on the DSPIC33FJ12GP202-E/SS requires careful analog input design: keep analog trace lengths short, surround analog traces with a ground pour, and add an RC anti-aliasing filter with a cutoff at less than half the ADC sample rate. AVDD and AVSS must be decoupled with a 10 uF plus 0.1 uF capacitor pair as close to the analog supply pins as possible. For best ADC accuracy, use the MCP1541 voltage reference or drive VREF+ from a clean external source rather than VDD.
Compliance Information
RoHS and REACH compliance per Microchip product page. E temperature grade supports -40C to +125C operation, suitable for industrial environments; for AEC-Q100 automotive qualification, system-level qualification is still required. The device is lead-free and halogen-free per Microchip environmental documentation.
