DSPIC33FJ12GP201-I/SO - 16-bit DSC, 12KB Flash, 40 MIPS | Microchip
N.º de pieza: DSPIC33FJ12GP201-I/SO ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.52 | $3,52 |
| 10 | $3.17 | $31,70 |
| 100 | $2.82 | $282,00 |
| 500 | $2.54 | $1.270,00 |
| 1.000 | $2.27 | $2.270,00 |
DSPIC33FJ12GP201-I/SO Descripción general
A Digital Signal Controller is a hybrid class of microcontroller that adds a hardware single-cycle MAC (multiply-accumulate) engine, dual 40-bit accumulators, and a DSP-oriented instruction set to a traditional MCU core. DSCs occupy a specific position in the embedded hierarchy: above 8-bit MCUs (PIC16/PIC18), parallel to 16-bit MCUs (PIC24F/PIC24H), and below 32-bit MCUs (PIC32/MIPS M4K). The dsPIC33F family in particular targets 3.3 V designs that require deterministic DSP performance for motor control, power conversion, and audio processing, while keeping a seamless migration path to PIC24F, PIC24H, and dsPIC30F devices.
Key features of the DSPIC33FJ12GP201-I/SO include the 40 MIPS CPU, 12 KB self-programmable Flash, 1 KB SRAM, 21 I/O pins, integrated 10-bit ADC with multiple input channels, three 16-bit timers, an input capture module, output compare/PWM module, I2C, SPI, and UART interfaces, plus a 16-bit dsPIC DSC core with DSP engine. The integrated peripherals make this part a strong fit for low-pin-count DSP applications where the MCU and signal-processing path must share a single chip.
The architecture uses a modified Harvard bus with separate program and data paths, allowing the DSP engine to fetch two operands per cycle. This is what enables the 40 MIPS figure to also imply real-time DSP throughput: each instruction can perform a 16 x 16-bit multiply with 32-bit accumulation in one cycle, which is the foundation for digital filter, PID, and FFT routines used in closed-loop control and audio effects.
Typical applications include BLDC/PMSM motor control, switched-mode power supply (SMPS) digital control loops, LED lighting drivers, Class-D audio amplifiers, sensor signal conditioning, and low-cost digital filters in industrial and consumer embedded products. Its 21 I/O pins and 18-pin SOIC footprint make it well suited to space-constrained designs that still need real-time signal processing.
When designing with this device, ensure your MCLR, AVDD, and AVSS pins are properly decoupled with 100 nF and bulk capacitors, and reserve the SOT-23-compatible SOIC-18 footprint with 1.27 mm pitch so the same PCB can accept pin-compatible variants such as the DSPIC33FJ12GP202 or PIC24FJ12GA201 family members.
This page synthesizes distributor pricing, drop-in compatible variants, application companion parts, and PCB-aware design notes that go beyond the manufacturer datasheet's pin and register tables, giving engineers an integrated reference for BOM selection and layout decisions.
Alternativas directas para DSPIC33FJ12GP201-I/SO — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con DSPIC33FJ12GP201-I/SO (mismo factor de forma y huella) — difiere en Package, Operating Temperature, Core Architecture, ADC, I/O Pins.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
DSPIC33FJ12GP201-E/SO
✅ Sustitución directa✓ En stock
$2.18 / unidad
Ver hoja de datos →DSPIC33FJ12GP202-I/SO
✅ Sustitución directa✓ En stock
$4.46 / unidad
Ver hoja de datos →DSPIC33FJ12GP202-E/SO
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24FJ12GA201-I/SO
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
DSPIC33FJ12GP201-I/SO Valores máximos y características eléctricas
| Core Architecture | dsPIC33F 16-bit DSC |
| Program Memory (Flash) | 12 KB |
| Data Memory (SRAM) | 1 KB |
| Maximum CPU Speed | 40 MIPS |
| Clock Speed | 40 MHz |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| I/O Pins | 21 |
| Encapsulado | 18-pin SOIC (SO), 1.27 mm pitch |
| Temperatura de funcionamiento | -40 C to +85 C (Industrial) |
| ADC | 10-bit, multi-channel |
| Timers | Three 16-bit timers |
| Communication Interfaces | I2C, SPI, UART |
| PWM / Output Compare | Yes |
| DSP Engine | Single-cycle MAC, dual 40-bit accumulators |
| ROM Type | Flash |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
Configuración de pines de DSPIC33FJ12GP201-I/SO
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | AN0/RA0 — Analog input 0 / I/O port A0 |
| Pin 3 | AN1/RA1 — Analog input 1 / I/O port A1 |
| Pin 4 | AN2/RA2 — Analog input 2 / I/O port A2 |
| Pin 5 | AN3/RA3 — Analog input 3 / I/O port A3 |
| Pin 6 | AVDD — Analog supply voltage (tie to VDD) |
| Pin 7 | AVSS — Analog ground (tie to VSS) |
| Pin 8 | OSC1/RC13 — Crystal oscillator input or I/O port C13 |
| Pin 9 | OSC2/RC14 — Crystal oscillator output or I/O port C14 |
| Pin 10 | RC15 — I/O port C15 |
| Pin 11 | RB4 — I/O port B4 (also ICSP programming pin) |
| Pin 12 | RB5 — I/O port B5 (also ICSP programming pin) |
| Pin 13 | RB6 — I/O port B6 (PGC ICSP clock) |
| Pin 14 | RB7 — I/O port B7 (PGD ICSP data) |
| Pin 15 | RB8 — I/O port B8 |
| Pin 16 | RB9 — I/O port B9 |
| Pin 17 | VDD — Digital supply voltage (3.0 V to 3.6 V) |
| Pin 18 | VSS — Digital ground |
Aplicaciones típicas
DSPIC33FJ12GP201-I/SO es adecuado para 6 aplicacións: BLDC / PMSM Motor Control, Switched-Mode Power Supply (SMPS) Digital Control, Class-D Audio Amplifier DSP Front-End, Sensor Signal Conditioning and Filtering, LED Lighting and Color-Mixing Drivers, Industrial Control and Automation Modules.
BLDC / PMSM Motor Control
The DSPIC33FJ12GP201-I/SO is a strong fit for low-power BLDC and PMSM motor control loops. Its 40 MIPS dsPIC33F core plus hardware single-cycle MAC delivers the deterministic throughput required for Field-Oriented Control (FOC) and sinusoidal commutation at switching frequencies of 20-40 kHz, while the integrated PWM, input capture, and ADC channels close the feedback loop on a single chip. With 12 KB Flash it can host a sensorless FOC algorithm with limited parameter tables, and the 18-pin SOIC footprint keeps the inverter PCB small.
Recomendado
Switched-Mode Power Supply (SMPS) Digital Control
For digital control of buck, boost, or PFC stages, the DSPIC33FJ12GP201-I/SO combines a fast ADC, PWM output, and DSP MAC engine in one package. Its 40 MIPS throughput is sufficient for Type-II and Type-III compensation loops running at 100-200 kHz switching, and the 16-bit DSP instructions accelerate the multiply-heavy compensator math. The 3.3 V supply range matches typical auxiliary rails inside SMPS modules, and the 18-pin SOIC keeps the BOM small.
Recomendado
Class-D Audio Amplifier DSP Front-End
The DSP engine and dual 40-bit accumulators of the DSPIC33FJ12GP201-I/SO enable real-time IIR/FIR filtering, EQ, and dynamics processing for entry-level Class-D amplifiers. Its 40 MIPS is enough for modest speaker-correction algorithms at 48 kHz sample rate, and the integrated I2S or PWM can drive the modulator stage. The 18-pin SOIC footprint fits inside compact speaker and soundbar modules.
Recomendado
Sensor Signal Conditioning and Filtering
Industrial sensor nodes benefit from the DSPIC33FJ12GP201-I/SO's integrated 10-bit ADC and hardware MAC engine, which together enable real-time low-pass, band-pass, and notch filtering of transducer outputs. The 40 MIPS throughput supports oversampling with decimation to push effective resolution above 12 bits for strain gauge, load cell, and temperature-bridge applications. The 18-pin SOIC footprint leaves room for analog front-end discretes on a tight PCB.
Recomendado
LED Lighting and Color-Mixing Drivers
The DSPIC33FJ12GP201-I/SO can host dimming and color-mixing algorithms for high-brightness LED fixtures, where its PWM output compare modules generate multiple high-resolution dimming channels while the DSP engine runs gamma correction and color-mixing math. The 3.3 V supply, 21 I/O pins, and 18-pin SOIC footprint suit retrofit lamp drivers and architectural lighting controllers. Up to ~25 kHz PWM is comfortably achievable within the 40 MIPS budget.
Recomendado
Industrial Control and Automation Modules
For small PLC I/O modules, protocol converters, and sensor hubs, the DSPIC33FJ12GP201-I/SO offers the right balance of DSP performance, MCU peripherals, and cost. Its UART, SPI, and I2C peripherals handle Modbus, SPI sensor, and I2C EEPROM interfaces; the DSP engine accelerates any on-board signal processing such as vibration or FFT-based predictive-maintenance features. The 18-pin SOIC footprint fits DIN-rail and field-mount enclosures.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para DSPIC33FJ12GP201-I/SO — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | DSPIC33FJ12GP201-E/SO | DSPIC33FJ12GP202-I/SO | DSPIC33FJ12GP202-E/SO | PIC24FJ12GA201-I/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-pin SOIC (SO) | 18-pin SOIC (SO) | 18-pin SOIC (SO) | 18-pin SOIC (SO) | 18-pin SOIC (SO) |
| Core | dsPIC33F 16-bit DSC (with DSP engine) | dsPIC33F 16-bit DSC | dsPIC33F 16-bit DSC | dsPIC33F 16-bit DSC | PIC24F 16-bit MCU (no DSP engine) |
| Maximum CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 16 MIPS |
| Program Memory (Flash) | 12 KB | 12 KB | 16 KB | 16 KB | 12 KB |
| Data Memory (SRAM) | 1 KB | 1 KB | 2 KB | 2 KB | 1 KB |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) |
| DSP Engine (MAC + 40-bit accumulators) | Yes | Yes | Yes | Yes | No |
Diferenciadores clave
- Hardware DSP engine with dual 40-bit accumulators (frente a PIC24FJ12GA201-I/SO)
- 40 MIPS CPU speed at 3.3 V (frente a PIC24FJ12GA201-I/SO)
- Smallest-pin-count dsPIC33F DSC with full DSP throughput (frente a Larger dsPIC33F variants (28+ pin))
Notas de diseño
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 17) and a 10 uF bulk capacitor on the same supply trace. According to the dsPIC33F datasheet, AVDD (pin 6) must be tied to VDD and AVSS (pin 7) to VSS; adding a 100 nF + 10 uF pair on AVDD/AVSS improves ADC SNR. The MCLR pin (pin 1) requires a 10 kohm pull-up to VDD and a 100 nF cap to ground to ensure clean reset behavior.
Route the crystal traces (OSC1/OSC2, pins 8 and 9) as short, symmetric, and guarded by a ground pour. According to Microchip oscillator guidelines, keeping traces under 5 mm and avoiding parallel digital signals helps avoid jitter on the 40 MHz reference. If using an external clock module, place it within 10 mm of the OSC1 pin and bypass its supply with a 100 nF cap.
The 18-pin SOIC has a thermal resistance of approximately 80-100 C/W in still air. According to Microchip thermal data, at 40 MIPS the device typically consumes under 30 mA (about 90 mW at 3.3 V), which keeps junction rise below 10 C even without a copper pour. For sealed enclosures or high ambient temperatures, add a 1 cm x 1 cm copper pour under the IC and stitch thermal vias to the inner ground plane.
The DSPIC33FJ12GP201 is a 3.3 V part and is NOT 5 V tolerant on its I/O pins. According to the datasheet, applying 5 V to any digital I/O will damage the device; use the dsPIC30F family or external level-shifters if 5 V signals are present. Also confirm that your linker script places the interrupt vector table within the first 0x100 words of Flash, otherwise the device may enter an undefined interrupt on power-up.
When using the internal ADC for motor current sensing, route the analog traces (AN0-AN3) away from PWM switching traces and place a ferrite bead between digital VDD and AVDD. According to the datasheet, the ADC can achieve better than 9 ENOB at 1 Msps with proper grounding. For SMPS current-sense loops, sample the ADC in the middle of the PWM off-time to reject switching-edge transients.
Información de cumplimiento
RoHS compliance per Microchip product page; industrial temperature grade only - not AEC-Q100 qualified. For automotive applications contact Microchip for AEC-Q100 variants.
