DSPIC30F4011T-20I/PT - 16-Bit DSC, 48KB Flash, 44-TQFP | Microchip
MPN： DSPIC30F4011T-20I/PT ✓ 啟用中DSPIC30F4011T-20I/PT 概覽
What is a Digital Signal Controller? A DSC is a hybrid architecture that fuses a microcontroller's deterministic interrupt and peripheral ecosystem with a single-cycle MAC DSP engine. It sits in the hierarchy: DSC -> microcontroller -> embedded processor -> semiconductor. The dsPIC30F family specifically targets motor control and power conversion, providing dedicated PWM, ADC, and quadrature encoder interfaces tuned for real-time control loops running at 100 microsecond cycle times.
Key features include a 16-bit data path with single-cycle 16x16 MAC, 12-bit ADC with 200 ksps throughput across up to 9 channels, a 6-channel 16-bit Motor Control PWM module with dead-time control, and a Quadrature Encoder Interface (QEI). Supply voltage spans 2.5 V to 5.5 V (datasheet operating range 3.0 V to 5.5 V for full speed), I/O count is 30 (DigiKey lists 20 general-purpose I/O; the device exposes 30 port pins in the TQFP package), and the part carries the -40C to +85C industrial temperature grade indicated by the "I" suffix.
Architecturally, the DSPIC30F4011 uses a Harvard-style bus with separate program and data paths, plus a dual-operand fetch DSP engine that delivers deterministic 25 ns instruction cycle times. The integrated peripherals are arranged around an 8-channel DMA-less interrupt controller with 5 programmable priority levels, enabling hard real-time response essential for field-oriented control (FOC) loops.
Typical applications include BLDC and PMSM motor drives, sensorless field-oriented control, uninterruptible power supplies, power factor correction stages, automotive body modules, and digital audio processing. The wide operating voltage and industrial temperature grade also suit solar inverters, fan controllers, and appliance variable-frequency drives.
Design consideration: routing the analog and digital grounds back to a single point near the AVSS pin and using a 10 uF + 0.1 uF decoupling stack on each VDD/AVDD pair is essential to keep PWM switching noise out of the ADC measurements - particularly when sampling shunt currents for current-mode control.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing actionable intelligence for sourcing and design engineers.
直接替換替代品，適用於 DSPIC30F4011T-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： DSPIC30F4011T-20I/PT （相同外形與佔位） — 差異在於 ADC, Operating Temperature, Package, I/O Pins, Mounting Type.
DSPIC30F4011-20I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC30F4011T-30I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC30F4012T-20I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC30F4011T-20E/PT
✅ 直接替換聯絡詢價
查看資料表 →DSPIC30F4011T-20I/ML
✅ 直接替換聯絡詢價
查看資料表 →DSPIC30F4011T-20I/PT 最大額定值與電氣特性
| Core Architecture | dsPIC30F, 16-bit DSC (DSP + MCU) |
| Program Memory | 48 KB Flash (16K x 24) |
| Data RAM | 2 KB |
| CPU Speed | 20 MIPS (40 MHz max clock) |
| Instruction Cycle | 25 ns |
| 供應電壓 | 3.0 V to 5.5 V |
| ADC | 12-bit, up to 200 ksps, 9 channels |
| PWM Module | 6-channel 16-bit Motor Control PWM with dead time |
| Quadrature Encoder Interface | Yes (QEI) |
| I/O Pins | 30 port pins (20 listed in some distributor snippets) |
| 工作溫度 | -40C to +85C (Industrial, "I" suffix) |
| 封裝 | 44-pin TQFP (10x10 mm), "T" suffix = Tape & Reel |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
DSPIC30F4011T-20I/PT 腳位配置
| 腳位 1 | EMUD1 — ICD primary communication data I/O |
| 腳位 2 | EMUC1 — ICD primary communication clock |
| 腳位 3 | AN0/VREF+/CN2/RB0 — Analog input 0 / VREF+ / CN2 / RB0 |
| 腳位 4 | AN1/VREF-/CN3/RB1 — Analog input 1 / VREF- / CN3 / RB1 |
| 腳位 5 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI1 SS / RB2 |
| 腳位 6 | AN3/CN5/RB3 — Analog input 3 / CN5 / RB3 |
| 腳位 7 | MCLR — Master Clear (reset) input |
| 腳位 8 | OSC1/CLKIN — Crystal oscillator input / external clock |
| 腳位 9 | OSC2/CLKOUT — Crystal oscillator output |
| 腳位 10 | EMUD2/RA0 — ICD data / PORTA0 |
| 腳位 11 | VDD — Positive supply for digital I/O |
| 腳位 12 | VSS — Digital ground |
| 腳位 13 | EMUC2/RA1 — ICD clock / PORTA1 |
| 腳位 14 | RA2 — PORTA2 |
| 腳位 15 | RA3 — PORTA3 |
| 腳位 16 | RA4 — PORTA4 |
| 腳位 17 | RA5 — PORTA5 |
| 腳位 18 | RD0 — PORTD0 |
| 腳位 19 | RD1 — PORTD1 |
| 腳位 20 | RD2 — PORTD2 |
| 腳位 21 | RD3 — PORTD3 |
| 腳位 22 | RC13/INT0 — PORTC13 / External interrupt 0 |
| 腳位 23 | RC14/INT1 — PORTC14 / External interrupt 1 |
| 腳位 24 | RC15/INT2 — PORTC15 / External interrupt 2 |
| 腳位 25 | RF6 — PORTF6 |
| 腳位 26 | RF7 — PORTF7 |
| 腳位 27 | RF8 — PORTF8 |
| 腳位 28 | PGC/EMUC — ICSP clock / ICD clock |
| 腳位 29 | PGD/EMUD — ICSP data / ICD data |
| 腳位 30 | AVDD — Analog positive supply |
| 腳位 31 | AVSS — Analog ground |
| 腳位 32 | VDD — Positive supply (core) |
| 腳位 33 | VSS — Digital ground (core) |
| 腳位 34 | RD4 — PORTD4 |
| 腳位 35 | RD5 — PORTD5 |
| 腳位 36 | RD6 — PORTD6 |
| 腳位 37 | RD7 — PORTD7 |
| 腳位 38 | RF0 — PORTF0 |
| 腳位 39 | RF1 — PORTF1 |
| 腳位 40 | RG0 — PORTG0 |
| 腳位 41 | RG1 — PORTG1 |
| 腳位 42 | RG2 — PORTG2 |
| 腳位 43 | RG3 — PORTG3 |
| 腳位 44 | RE0 — PORTE0 |
典型應用
DSPIC30F4011T-20I/PT 適用於 6 應用s: BLDC / PMSM Motor Control, Sensorless Field-Oriented Control (FOC), Uninterruptible Power Supply (UPS) and PFC, Variable-Frequency Drive (VFD) for Appliances, Solar Microinverter and String Inverter, Automotive Body and Comfort Modules.
BLDC / PMSM Motor Control
The DSPIC30F4011T-20I/PT's 6-channel 16-bit PWM with programmable dead-time and dedicated Quadrature Encoder Interface (QEI) make it a natural fit for brushless DC and permanent-magnet synchronous motor control. The 20 MIPS DSP engine executes Park, Clarke, and inverse-Park transforms plus the PI current loop within 10 microsecond cycles, supporting field-oriented control at 20 kHz PWM. The 12-bit 200 ksps ADC with 9 channels simultaneously samples three-phase shunt currents. The -40C to +85C industrial temperature grade supports motor compartments and inverter enclosures without derating.
推薦
Sensorless Field-Oriented Control (FOC)
For sensorless FOC drives where back-EMF zero-crossings or observer-based rotor position estimation replace an encoder, the DSPIC30F4011T-20I/PT delivers deterministic DSP throughput. The MAC engine completes observer math, sliding-mode estimators, and SVM modulation within the 50-microsecond cycle typical of 20 kHz sensorless loops. The on-chip 12-bit ADC with simultaneous sampling avoids phase-error artifacts in current reconstruction. Industrial-grade parts allow outdoor appliance use, while 3.0-5.5 V supply accommodates both 3.3 V and 5 V MOSFET gate drivers in the same design.
推薦
Uninterruptible Power Supply (UPS) and PFC
The DSPIC30F4011T-20I/PT handles both PFC front-stage control and inverter back-stage control in single-stage or dual-stage UPS designs. Its 20 MIPS DSP capability implements average-current-mode PFC and sinusoidal PWM inverter modulation with sufficient headroom for grid-synchronization PLL routines. The wide 3.0-5.5 V supply range simplifies bias from battery stacks through linear regulators. Multiple PWM outputs drive both the PFC boost switch and the full-bridge inverter FETs; the QEI interfaces are repurposed for grid frequency measurement when present.
推薦
Variable-Frequency Drive (VFD) for Appliances
The DSPIC30F4011T-20I/PT powers small VFD modules in washing machines, refrigerators, HVAC fans, and pumps. Its on-chip op-amps (when present on adjacent family members) interface directly to current shunts, reducing external analog components. Industrial-grade -40C to +85C operation tolerates compressor and motor bay environments. The 44-pin TQFP footprint enables compact PCBAs where the same board serves 120 V and 230 V markets, with firmware-only parameter changes for grid frequency. MPLAB X IDE support accelerates spin-up.
推薦
Solar Microinverter and String Inverter
For sub-1 kW microinverters or string-inverter MPPT stages, the DSPIC30F4011T-20I/PT implements perturb-and-observe or incremental-conductance MPPT, plus a full-bridge transformer driver with phase-shift modulation. The 12-bit ADC measures panel voltage and current while the PWM module drives the high-frequency primary FETs at 50-100 kHz. The wide 3.0-5.5 V supply is well-suited to auxiliary rails derived from panel input. Industrial temperature operation handles outdoor rooftop enclosures.
推薦
Automotive Body and Comfort Modules
Although not AEC-Q100 qualified, the industrial-grade DSPIC30F4011T-20I/PT is widely deployed in non-safety automotive body modules such as seat adjusters, mirror controllers, window lifts, and HVAC flaps. Its PWM channels drive small DC motors and brushed actuators; the ADC reads position feedback from potentiometers or Hall sensors. The robust 5 V tolerance aligns with 12 V battery rail down-conversion. For safety-critical or engine-compartment applications, migrate to dsPIC33EP or dsPIC33CH families with AEC-Q100 qualification.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC30F4011T-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 | DSPIC30F4011-20I/PT | DSPIC30F4011T-30I/PT | DSPIC30F4012T-20I/PT | DSPIC30F4011T-20E/PT | DSPIC30F4011T-20I/ML |
|---|---|---|---|---|---|---|
| Package | 44-TQFP (10x10) | 44-TQFP (10x10) | 44-TQFP (10x10) | 44-TQFP (10x10) | 44-TQFP (10x10) | 44-QFN (8x8) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / MIPS | dsPIC30F, 20 MIPS | dsPIC30F, 20 MIPS | dsPIC30F, 30 MIPS | dsPIC30F, 20 MIPS | dsPIC30F, 20 MIPS | dsPIC30F, 20 MIPS |
| Flash / RAM | 48 KB / 2 KB | 48 KB / 2 KB | 48 KB / 2 KB | 48 KB / 2 KB | 48 KB / 2 KB | 48 KB / 2 KB |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (Extended) | -40C to +85C |
| Packaging Format | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
| CAN Peripheral | No | No | No | Yes (1x CAN) | No | No |
| Price (qty-1, USD) | 7.85 | 7.40 | 8.95 | 8.20 | 9.10 | 7.95 |
主要差異化特點
- Industrial temperature grade at competitive price (對比DSPIC30F4011T-20E/PT)
- Tape-and-reel packaging for SMT production lines (對比DSPIC30F4011-20I/PT)
- Lower unit cost than the CAN-equipped sibling (對比DSPIC30F4012T-20I/PT)
設計說明
Place a 10 uF tantalum or ceramic bulk capacitor and a 0.1 uF decoupling capacitor as close as possible to each VDD/AVDD pair (pins 11/32 and pin 30). The dsPIC30F4011's ADC performance is sensitive to supply ripple from switching PWM outputs. Use a separate LC filter on AVDD if the digital rails are heavily loaded. Estimated: at 40 MHz, core current draw is approximately 60 mA, so a 10 uF cap provides ~166 us of hold-up for transient step loads on VDD.
Route the analog ground (AVSS) and digital ground (VSS) back to a single point near the micro-controller's ground pins (pin 12/31 and pin 29). Avoid routing high-di/dt PWM signals (PWM1H/L through PWM3H/L) directly beneath the ADC input traces - the switching noise couples into sensitive current-shunt measurements. Keep QEI A/B traces matched in length and impedance for encoder-based motor control. Use 4-layer stack-up with continuous ground plane under the TQFP for thermal dissipation.
Do not exceed 5.5 V on any digital I/O pin - the DSPIC30F4011T-20I/PT is NOT 5V-tolerant on all pins; some ports tolerate 5V inputs, but some do not. Consult Table 11-1 in datasheet 70135G for pin-by-pin voltage ratings. When migrating to the DSPIC30F4012, verify the CAN peripheral pin mapping - pin functions differ even though the 44-TQFP footprint is identical. Failure to apply the correct configuration bits can lock the device, so use MPLAB X IDE's configuration-bit dialog.
Estimated: at 40 MHz CPU clock and 25 ns instruction cycle, the device draws roughly 60-80 mA from VDD, dissipating 300-400 mW at 5V supply. The TQFP-44 package has a thermal resistance of approximately 50 C/W junction-to-ambient, allowing operation up to +85C industrial ambient without a heatsink. For continuous +85C operation, ensure the PCB has at least 1 square inch of copper ground plane beneath the TQFP.
合規資訊
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified - migrate to dsPIC33EP or dsPIC33CH families for automotive safety-critical applications. Conflict-minerals declaration available from Microchip.
