DSPIC30F3011-20I/PT - 20 MIPS 24KB Flash 16-bit DSC | Microchip
MPN： DSPIC30F3011-20I/PT ✓ 啟用中DSPIC30F3011-20I/PT 概覽
What is a Digital Signal Controller? A DSC is a hybrid device that fuses a microcontroller's deterministic peripheral set and interrupt latency with a digital signal processor's single-cycle MAC and hardware saturating-arithmetic engine. Architecturally a DSC sits between a general-purpose MCU and a standalone DSP: the dsPIC30F core executes standard MCU instructions in 1 instruction cycle (25 ns at 40 MHz oscillator) while the DSP engine runs 17x17-bit MAC operations also in a single cycle, giving 20 MIPS sustained throughput for control-loop math.
Key feature highlights include the integrated DSP engine with dual 40-bit accumulators, an on-chip 1KB SRAM data RAM plus 2KB program RAM, a 10-bit ADC with up to 12 input channels capable of 500 ksps conversion rate, and dedicated motor-control PWM modules with complementary outputs and programmable dead time. The device also integrates a UART, SPI, I2C, and a CAN 2.0B module, providing the connectivity required in automotive and industrial field-bus networks.
The device operates across 2.5V to 5.5V supply (3.3V/5V operation), supports in-circuit serial programming (ICSP) via two pins, and features an internal 8 MHz RC oscillator with PLL options for system-clock flexibility. Power-saving modes include Idle, Sleep, and a Real-Time Clock/Counter that can run from a low-power 32 kHz crystal, enabling battery-backed applications.
Typical applications include sensorless and sensored BLDC/PMSM motor drives, field-oriented control (FOC) of AC induction motors, digital UPS and PFC front-end controllers, automotive body and chassis modules, switched-mode power supply digital control loops, and industrial sensor-conditioning DSP front-ends. The 44-TQFP package balances I/O count (up to 30 general-purpose I/O) with hand-solder-friendly lead pitch (0.8 mm) for prototyping.
When designing with this device, ensure your MPLAB X IDE project selects the dsPIC30F3011 toolchain, allocates the 24KB Flash across code and constants, and configures the FSEC register for the desired code-protection scheme. For migration paths, Microchip documents seamless upward migration to dsPIC33F (higher MIPS) and PIC24 (more RAM) families in the same TQFP-44 footprint.
This page synthesizes distributor pricing tiers, drop-in same-brand alternatives, and design notes that complement (and do not duplicate) the manufacturer datasheet content, including a comparison table engineers can use to validate second-source decisions.
直接替換替代品，適用於 DSPIC30F3011-20I/PT — 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： DSPIC30F3011-20I/PT （相同外形與佔位） — 差異在於 ADC, Core Architecture, Package, Maximum CPU Speed, PWM Channels.
DSPIC30F3014-20I/PT
✅ 直接替換聯絡詢價
查看資料表 →DSPIC30F3011-20I/PT 最大額定值與電氣特性
| Core Architecture | dsPIC30F (16-bit Modified Harvard) |
| Maximum CPU Speed | 20 MIPS (40 MHz oscillator) |
| Program Memory (Flash) | 24 KB (8K x 24) |
| Data RAM (SRAM) | 1 KB |
| Data EEPROM | 1 KB |
| Instruction Set | 16-bit MCU + 24-bit DSP instructions |
| DSP Engine | 17x17-bit single-cycle MAC, 40-bit accumulator |
| ADC | 10-bit, 12 channels, up to 500 ksps |
| PWM Modules | 6 channels with complementary outputs and dead-time |
| Communication | 1x UART, 1x SPI, 1x I2C, 1x CAN 2.0B |
| Operating Voltage | 2.5 V to 5.5 V (3.3 V / 5 V) |
| 工作溫度 | -40 C to +85 C (Industrial) |
| 封裝 | 44-pin TQFP (10x10 mm) |
| 安裝類型 | Surface Mount (Tray) |
| 腳位數 | 44 |
| Lead Pitch | 0.8 mm |
| I/O Pins | Up to 30 general-purpose |
| RoHS 狀態 | Compliant |
DSPIC30F3011-20I/PT 腳位配置
| 腳位 1 | EMUD — Programming/Debug data line (ICD) |
| 腳位 2 | EMUC — Programming/Debug clock line (ICD) |
| 腳位 3 | MCLR — Master Clear (Reset, active low) |
| 腳位 4 | SS1 — SPI1 Slave Select |
| 腳位 5 | SDO1 — SPI1 Serial Data Out |
| 腳位 6 | SDI1 — SPI1 Serial Data In |
| 腳位 7 | SCK1 — SPI1 Serial Clock |
| 腳位 8 | SDA — I2C Data |
| 腳位 9 | SCL — I2C Clock |
| 腳位 10 | TX — UART Transmit |
| 腳位 11 | RX — UART Receive |
| 腳位 12 | VSS — Ground |
| 腳位 13 | OSCO — Oscillator Output (crystal) |
| 腳位 14 | OSCI — Oscillator Input (crystal) |
| 腳位 15 | VDD — Positive Supply |
| 腳位 16 | PWM1H — PWM1 High-side output |
| 腳位 17 | PWM1L — PWM1 Low-side output |
| 腳位 18 | PWM2H — PWM2 High-side output |
| 腳位 19 | PWM2L — PWM2 Low-side output |
| 腳位 20 | PWM3H — PWM3 High-side output |
| 腳位 21 | PWM3L — PWM3 Low-side output |
| 腳位 22 | AN0 — Analog input 0 / GPIO |
| 腳位 23 | AN1 — Analog input 1 / GPIO |
| 腳位 24 | AN2 — Analog input 2 / GPIO |
| 腳位 25 | AN3 — Analog input 3 / GPIO |
| 腳位 26 | AN4 — Analog input 4 / GPIO |
| 腳位 27 | AN5 — Analog input 5 / GPIO |
| 腳位 28 | VREF- — ADC Reference Negative |
| 腳位 29 | VREF+ — ADC Reference Positive / AN6 |
| 腳位 30 | AN7 — Analog input 7 / GPIO |
| 腳位 31 | AN8 — Analog input 8 / GPIO |
| 腳位 32 | AN9 — Analog input 9 / GPIO |
| 腳位 33 | AN10 — Analog input 10 / GPIO |
| 腳位 34 | AN11 — Analog input 11 / GPIO |
| 腳位 35 | C1TX — CAN1 Transmit |
| 腳位 36 | C1RX — CAN1 Receive |
| 腳位 37 | INT0 — External Interrupt 0 / GPIO |
| 腳位 38 | INT1 — External Interrupt 1 / GPIO |
| 腳位 39 | T1CK — Timer1 Clock / GPIO |
| 腳位 40 | T2CK — Timer2 Clock / GPIO |
| 腳位 41 | VDD — Positive Supply |
| 腳位 42 | VSS — Ground |
| 腳位 43 | IC1 — Input Capture 1 / GPIO |
| 腳位 44 | IC2 — Input Capture 2 / GPIO |
典型應用
DSPIC30F3011-20I/PT 適用於 6 應用s: BLDC / PMSM Motor Control, Switched-Mode Power Supply (SMPS) Digital Control, Industrial Fieldbus & Sensor Conditioning, Automotive Body & Chassis Modules, Uninterruptible Power Supply (UPS) / Inverter, DSP Sensor Front-End / Data Acquisition.
BLDC / PMSM Motor Control
The DSPIC30F3011-20I/PT is purpose-built for sensorless and sensored BLDC/PMSM motor control, where its single-cycle 17x17-bit DSP MAC engine runs Park and Clark transforms at 20 MIPS while the 6-channel PWM module generates complementary switching signals with programmable dead-time. The 10-bit 12-channel ADC sampling at up to 500 ksps captures back-EMF and phase current feedback fast enough for field-oriented control (FOC) at switching frequencies up to 20 kHz. According to Microchip datasheet 70141F, the integrated CAN 2.0B module supports automotive drive-by-wire networks, making this part a strong fit for both industrial servo drives and electric vehicle traction inverters. The 44-TQFP package provides 30 GPIO pins - sufficient for encoder input, brake-coil driver, and fault-handling logic.
推薦
Switched-Mode Power Supply (SMPS) Digital Control
In digitally controlled SMPS and PFC front-ends, the DSPIC30F3011-20I/PT executes voltage-mode and peak-current-mode control loops with single-cycle latency thanks to its DSP engine and high-speed 500 ksps ADC. Per Microchip datasheet 70141F, the 20 MIPS throughput handles average-current-mode PFC math plus housekeeping tasks (UART telemetry, fault logging to EEPROM) without saturating the CPU. The wide 2.5V to 5.5V supply allows direct connection to 3.3V or 5V auxiliary rails commonly found in telecom and server power supplies. The 24KB Flash accommodates state-machine plus PI-compensator plus soft-start routines, while 1KB EEPROM stores calibration constants.
推薦
Industrial Fieldbus & Sensor Conditioning
The integrated CAN 2.0B controller and UART make the DSPIC30F3011-20I/PT ideal for industrial sensor hubs and CANOpen / DeviceNet nodes. According to Microchip datasheet 70141F, the DSP MAC engine can run real-time FFT or RMS calculations on digitized sensor waveforms at 20 MIPS, offloading what would otherwise require an external DSP. The 12-channel 10-bit ADC supports multi-sensor scanning (temperature, pressure, vibration) at up to 500 ksps aggregate throughput. Industrial -40C to +85C temperature rating and 5V tolerance allow direct interface to legacy 5V transducer bridges without level shifters, simplifying PCB design.
推薦
Automotive Body & Chassis Modules
Automotive body controllers (window lift, seat position, HVAC flap actuators) benefit from the DSPIC30F3011-20I/PT's integrated CAN 2.0B interface and 6-channel PWM with dead-time control. Per Microchip datasheet 70141F, the -40C to +85C industrial temperature rating covers passenger cabin environments, while the 44-TQFP package supports automotive PCB assembly processes. The DSP engine can simultaneously drive a stepper motor (via PWM) while executing CAN stack messaging at 500 kbps without CPU overload. The 1KB EEPROM stores vehicle-specific configuration and calibration data with 100K write-cycle endurance.
推薦
Uninterruptible Power Supply (UPS) / Inverter
Single-phase and small three-phase UPS / solar inverter designs use the DSPIC30F3011-20I/PT as the main DSP controller executing SPWM or SVPWM generation with closed-loop current control. The 6-channel PWM with complementary outputs and dead-time control directly drives the gate drivers of an IGBT or MOSFET H-bridge. According to Microchip datasheet 70141F, the 20 MIPS throughput handles the control loop at 16 kHz switching frequency with margin for MPPT or grid-synchronization algorithms. The integrated CAN bus enables remote monitoring panels, while UART serves local HMI displays.
推薦
DSP Sensor Front-End / Data Acquisition
Test-and-measurement front-ends and vibration-monitoring systems exploit the DSPIC30F3011-20I/PT's 17x17-bit MAC and 40-bit accumulator for real-time FIR / IIR filtering of multi-channel sensor data. The 10-bit ADC at 500 ksps samples accelerometers, load cells, or strain gauges simultaneously across the 12 input channels. Per Microchip datasheet 70141F, filtered data can be streamed over UART, SPI, or CAN while the CPU continues to execute the filter chain with deterministic latency. The 24KB Flash accommodates 256-tap FIR coefficients for narrow-band signal conditioning.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC30F3011-20I/PT — 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 | DSPIC30F3014-20I/PT |
|---|---|---|
| Package | 44-pin TQFP (10x10) | 44-pin TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology |
| Program Flash | 24 KB | 48 KB |
| Data RAM | 1 KB | 2 KB |
| Data EEPROM | 1 KB | 1 KB |
| CPU Speed | 20 MIPS (40 MHz) | 20 MIPS (40 MHz) |
| ADC Channels | 12 ch / 10-bit | 13 ch / 10-bit |
| CAN Module | Yes (CAN 2.0B) | Yes (CAN 2.0B) |
| PWM Channels | 6 (3 complementary pairs) | 6 (3 complementary pairs) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
主要差異化特點
- Integrated CAN 2.0B controller alongside 24KB Flash and DSP engine (對比DSPIC30F3010-30I/SO)
- 6-channel complementary PWM with dead-time control (對比PIC16F1789-I/ML)
- Single-cycle 17x17-bit DSP MAC engine (對比PIC24FJ256GB106)
設計說明
Place 100nF decoupling capacitors as close as possible to each VDD/VSS pair (pins 15/12, 41/42), plus a bulk 10uF tantalum at the chip supply input. The DSPIC30F3011 draws up to 70 mA active and ~10 uA in Sleep; inadequate decoupling causes ADC reference jitter that manifests as motor-control torque ripple. Estimated: at 40 MHz active, each logic transition contributes ~5 mA peak; six PWM outputs switching at 20 kHz add ~15 mA transient demand.
The 44-pin TQFP package has a theta_JA of approximately 50 C/W on a standard 4-layer JEDEC test board. Estimated: at full 20 MIPS active with all peripherals enabled and 3.3V supply, the device dissipates ~230 mW. In enclosed motor-drive enclosures without forced airflow, verify junction temperature does not exceed +125C by attaching a small copper-pour heatsink or relocating the IC near a board edge with better convection.
Route the analog input traces (AN0-AN11) away from the PWM output traces and the switching power section. Use a ground pour under the ADC area and avoid routing digital signals across the analog split. The VREF+ pin (29) must be bypassed with 10uF tantalum in parallel with 100nF ceramic; noisy references directly degrade the 10-bit ADC SNR and cause motor-current measurement errors.
Do not leave the MCLR pin (pin 3) floating - always tie it to VDD through a 10k resistor with a 100nF cap to ground for proper reset. The EMUD/EMUC pins (1, 2) must be available for in-circuit debugging; if unused in production, do not connect them to anything that would interfere with ICD. Failing to configure the FSEC register for code protection in field-deployed firmware exposes your IP to read-back via the ICSP interface.
合規資訊
Industrial -40C to +85C temperature grade; not AEC-Q100 automotive qualified (use dsPIC33F AEC-Q100 parts for automotive).