DSPIC33FJ12GP202T-I/SO - 40 MIPS 16-bit DSC, 12KB Flash, 28-SOIC
MPN： DSPIC33FJ12GP202T-I/SO ✓ 啟用中DSPIC33FJ12GP202T-I/SO 概覽
A Digital Signal Controller (DSC) is a hybrid class of microcontroller that adds single-cycle MAC (multiply-accumulate) DSP capability to a standard MCU core. The dsPIC33F architecture fuses a modified Harvard MCU with a DSP engine, making it suitable for closed-loop control, digital filtering, and audio/voice processing. Within the broader taxonomy, this places the device in the chain: dsPIC33F -> DSC -> microcontroller -> embedded processor -> semiconductor.
Key specifications include a 40 MHz maximum operating frequency (40 MIPS), 16-bit data path, integrated peripherals such as a 10/12-bit ADC, timers, UART/SPI/I2C, and PWM outputs suitable for motor control and power conversion. The device also features nanoWatt power management for sleep modes, 5V-tolerant digital inputs, and Peripheral Pin Select (PPS) that remaps digital functions onto any I/O pin. The industrial -40C to +85C temperature range supports commercial and industrial deployment.
The DSP engine executes a 16x16-bit signed fractional/integer MAC in a single cycle, enabling efficient IIR/FIR filtering, FFT, and PID control loops. Combined with deterministic interrupt latency, the architecture is well suited for real-time embedded control applications. Code compatibility with the PIC24F/PIC24H MCU and dsPIC30F DSC families enables seamless firmware migration across performance points.
Typical applications include digital motor control (BLDC, PMSM, stepper), switched-mode power supply (SMPS) digital control loops, sensor signal conditioning, LED lighting control, and low-cost audio effects processing. The wide SOIC-28 footprint simplifies hand-prototyping and rework in low-volume designs.
When designing with this device, ensure the 3.3V rail is well decoupled (10uF bulk plus 0.1uF ceramic near each VDD/VSS pair) and that unused I/O pins are configured as outputs to minimize current draw. Code protection fuses should be evaluated for production firmware security.
直接替換替代品，適用於 DSPIC33FJ12GP202T-I/SO — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： DSPIC33FJ12GP202T-I/SO （相同外形與佔位） — 差異在於 Package, Core Architecture, ADC, Operating Temperature, DSP Engine.
DSPIC33FJ12GP202-I/SO
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ12GP202T-I/SP
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33FJ12GP201-E/SO
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ12GP201-I/SO
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ12GP202-I/SP
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ12GP202-I/ML
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ12GP202T-I/SO 最大額定值與電氣特性
| Core Architecture | dsPIC33F 16-bit DSC (modified Harvard) |
| Maximum CPU Speed | 40 MIPS (40 MHz) |
| Program Memory (Flash) | 12 KB (12K x 8) |
| Data SRAM | 1 KB (1024 bytes) |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| 工作溫度 | -40 C to +85 C (Industrial) |
| Digital I/O Pins | 21 programmable |
| 封裝 | 28-pin SOIC (SO), 300 mil wide |
| 安裝類型 | Surface Mount |
| ADC | 10/12-bit A/D converter |
| DSP Engine | Single-cycle 16x16 MAC |
| Communication Peripherals | UART, SPI, I2C |
| PWM Outputs | Yes (motor control / power conversion) |
| Peripheral Pin Select (PPS) | Yes (remappable digital peripherals) |
| Digital Input Tolerance | 5 V tolerant |
| I/O Sink Current | 4 mA per pin |
| Power-Saving Modes | nanoWatt sleep / idle |
| RoHS 狀態 | Compliant |
DSPIC33FJ12GP202T-I/SO 腳位配置
| 腳位 1 | MCLR — Master Clear (reset) input, active low |
| 腳位 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive Vref / change notification |
| 腳位 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative Vref / change notification |
| 腳位 4 | AN2/CN4/RB2 — Analog input 2 / change notification |
| 腳位 5 | AN3/CN5/RB3 — Analog input 3 / change notification |
| 腳位 6 | PGC1/AN4/CN6/RB4 — ICSP clock / analog input 4 / change notification |
| 腳位 7 | PGD1/AN5/CN7/RB5 — ICSP data / analog input 5 / change notification |
| 腳位 8 | VDD — Positive supply (3.0-3.6 V) |
| 腳位 9 | OSC1/CLKI/CN8/RB6 — Crystal oscillator input / change notification |
| 腳位 10 | OSC2/CLKO/CN9/RB7 — Crystal oscillator output / clock output / change notification |
| 腳位 11 | CN10/RB8 — Change notification / GPIO |
| 腳位 12 | CN11/RB9 — Change notification / GPIO |
| 腳位 13 | TMS/AN6/CN12/RB10 — JTAG test mode select / analog input 6 |
| 腳位 14 | TCK/AN7/CN13/RB11 — JTAG test clock / analog input 7 |
| 腳位 15 | TDI/AN8/RB12 — JTAG test data in / analog input 8 |
| 腳位 16 | TDO/AN9/RB13 — JTAG test data out / analog input 9 |
| 腳位 17 | SOSCI/CN14/RB14 — Secondary oscillator input / change notification |
| 腳位 18 | SOSCO/T1CK/CN15/RB15 — Secondary oscillator output / Timer1 clock / change notification |
| 腳位 19 | U1RTS/IC1/RF0 — UART1 RTS / input capture 1 (PPS-remappable) |
| 腳位 20 | U1RX/IC2/RF1 — UART1 RX / input capture 2 (PPS-remappable) |
| 腳位 21 | U1TX/OC1/RF2 — UART1 TX / output compare 1 (PPS-remappable) |
| 腳位 22 | U1CTS/OC2/RF3 — UART1 CTS / output compare 2 (PPS-remappable) |
| 腳位 23 | PWM1H/RF4 — PWM1 high-side output |
| 腳位 24 | PWM1L/RF5 — PWM1 low-side output |
| 腳位 25 | PWM2H/RF6 — PWM2 high-side output |
| 腳位 26 | PWM2L/RF7 — PWM2 low-side output |
| 腳位 27 | VSS — Ground reference |
| 腳位 28 | VDD — Positive supply (3.0-3.6 V) |
典型應用
DSPIC33FJ12GP202T-I/SO 適用於 6 應用s: BLDC / PMSM Motor Control, Digital Switched-Mode Power Supply (SMPS) Control, Sensor Signal Conditioning & FIR Filtering, LED Lighting & Color-Mixing Control, Audio Effects & Voice Processing, Industrial Sensor Hub & IO-Link.
BLDC / PMSM Motor Control
The DSPIC33FJ12GP202T-I/SO drives sensorless or sensored BLDC and PMSM motors in appliances, drones, and small industrial drives. Its 40 MIPS core executes back-EMF zero-cross detection, Clarke/Park transforms, and PI current loops within microseconds, while the integrated PWM modules generate complementary 6-output waveforms with programmable dead-time for three-phase inverter bridges. The 10/12-bit ADC samples phase currents with deterministic timing tied to PWM edges, eliminating jitter that would otherwise cause torque ripple. NanoWatt idle modes cut standby current below 1 mA in battery-powered tools, and 5V-tolerant digital inputs simplify interface to legacy Hall sensors or 3.3V gate drivers.
推薦
Digital Switched-Mode Power Supply (SMPS) Control
The DSPIC33FJ12GP202T-I/SO implements digital control loops for buck, boost, flyback, and PFC power converters up to a few hundred watts. The DSP engine executes voltage-mode and current-mode control math - including compensator calculation and adaptive gain adjustment - in single-cycle MAC instructions, supporting switching frequencies above 500 kHz. Peripheral Pin Select (PPS) routes PWM, ADC triggers, and fault inputs onto any GPIO, simplifying PCB layout. The 12 KB Flash accommodates state-machine firmware plus diagnostic logs, while nanoWatt sleep reduces standby loss to meet ENERGY STAR and ErP directives in adapters and white goods.
推薦
Sensor Signal Conditioning & FIR Filtering
The DSPIC33FJ12GP202T-I/SO conditions analog sensor signals through its integrated 10/12-bit ADC and applies real-time FIR or IIR digital filters to suppress 50/60 Hz mains interference, mechanical resonance, and thermal noise. The single-cycle 16x16 MAC executes 100-tap FIR filters in under 3 microseconds at 40 MIPS, making the device a strong fit for strain-gauge load cells, MEMS accelerometers, and biomedical instrumentation front-ends. Hardware saturation and rounding prevent overflow artifacts in fixed-point math. PPS allows the same silicon to interface SPI sensors, I2C ADCs, or UART load-cell ASICs without board rework.
推薦
LED Lighting & Color-Mixing Control
The DSPIC33FJ12GP202T-I/SO drives multi-channel LED fixtures with high-resolution PWM dimming and closed-loop color-temperature control. With PWM resolution exceeding 16 bits when configured for low-frequency LED dimming, the device delivers flicker-free output below 1% duty cycle, essential for cinema, stage, and architectural lighting. The DSP engine computes CIE-1931 chromaticity mixing in real time, dynamically adjusting RGBW channels to compensate for thermal drift and aging. NanoWatt sleep modes and 3.3V operation make the device attractive for battery-driven portable fixtures and PoE-connected luminaires where standby power matters.
推薦
Audio Effects & Voice Processing
The DSPIC33FJ12GP202T-I/SO adds reverb, EQ, chorus, and dynamics processing to consumer audio products like guitar pedals, karaoke mixers, and intercoms. The 16-bit DSC core runs effects algorithms at 40 MHz while simultaneously servicing I2S or PWM audio DACs, with the MAC engine handling biquad IIR cascades in real time. The 12 KB Flash stores preset tables and coefficient sets, while 1 KB SRAM buffers audio frames. The industrial temperature range supports automotive infotainment and outdoor PA equipment.
推薦
Industrial Sensor Hub & IO-Link
The DSPIC33FJ12GP202T-I/SO serves as a low-cost sensor hub or IO-Link device in industrial automation, aggregating digital and analog sensor data for transmission over UART/SPI fieldbuses. The DSP engine pre-processes data with windowed FIR filters to reduce bus bandwidth, while the PWM and timer peripherals generate trigger pulses for synchronized measurement. PPS remaps UART/SPI onto any I/O pin, simplifying PCB routing in space-constrained enclosures. The -40C to +85C industrial temperature range and 5V-tolerant inputs ensure robust operation near motor drives and contactors.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC33FJ12GP202T-I/SO — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | DSPIC33FJ12GP202-I/SO | DSPIC33FJ12GP201-E/SO | DSPIC33FJ12GP201-I/SO | DSPIC33FJ12GP202-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (300 mil) | 28-SOIC (300 mil) - same | 28-SOIC (300 mil) - same | 28-SOIC (300 mil) - same | 28-QFN (6x6 mm) - SMD layout differs |
| Flash Memory | 12 KB | 12 KB | 6 KB | 6 KB | 12 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Maximum CPU Speed | 40 MIPS (40 MHz) | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C |
| I/O Pins | 21 | 21 | 21 | 21 | 21 |
| Tape & Reel | Yes (-T suffix) | No (tube) | No (extended temp grade) | No (tube) | No (tube, QFN) |
主要差異化特點
- Larger 12 KB Flash vs 6 KB GP201 sibling (對比DSPIC33FJ12GP201-I/SO)
- Industrial -40C to +85C operating range with tape-and-reel packaging (對比DSPIC33FJ12GP202-I/SO)
- Single-cycle DSP MAC vs MCU-only competitors (對比Generic 16-bit MCU (PIC24FJ family))
設計說明
Decouple each VDD/VSS pair with a 0.1 uF ceramic capacitor placed within 5 mm of the IC pins, and add a single 10 uF bulk tantalum or ceramic at the board entry point. The 28-SOIC has two VDD pins (8 and 28) and two VSS pins (7 and 27); both pairs must be bypassed. For ADC accuracy, route an independent AVSS trace if available, and keep digital return currents off the analog ground.
Do not leave unused I/O pins floating - configure them as outputs driving low to avoid supply current spikes from floating gate transitions. The MCLR pin must be pulled high through a 10 kohm resistor with a 100 nF cap to ground for proper reset; floating MCLR causes erratic startups. Crystal load capacitors on OSC1/OSC2 must match the crystal's CL specification (typically 15-33 pF).
Keep the 28-SOIC crystal traces short and symmetric to avoid duty-cycle distortion on the system clock. Route ICSP pins (PGC1/PGD1) with a 4.7 kohm pull-up on PGD1 to VDD so the debugger can drive the bus. For motor-control and PFC designs using the PWM outputs (RF4-RF7), keep PWM traces away from analog inputs and provide a guard ring around the ADC sampling capacitor.
When using Peripheral Pin Select (PPS) to remap UART/SPI/I2C onto RF0-RF3 or other pins, remember that PPS-mapped peripherals lose their default pin assignment but retain all electrical characteristics. 5V-tolerant input tolerance applies to all digital I/O even when configured as outputs, which is useful for level-shifting interfaces without external translators. For high-speed SPI above 10 MHz, use the dedicated SPI pins where available.
合規資訊
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature grade but not AEC-Q100 automotive qualified.
