DSPIC30F3011-20I/P - 20 MIPS 16-bit DSC, 24KB Flash, 40-PDIP | Microchip
MPN: DSPIC30F3011-20I/P ✓ Hoạt độngDSPIC30F3011-20I/P Tóm tắt
A Digital Signal Controller (DSC) is a hybrid class of microcontroller that merges the deterministic interrupt response and peripheral integration of an MCU with a single-cycle MAC DSP engine. The dsPIC30F family specifically targets closed-loop control and signal conditioning, sitting in the hierarchy as: DSC -> microcontroller -> embedded processor -> semiconductor IC. DSCs are typically chosen over pure DSPs when the application needs tight coupling to ADC, PWM, and encoder peripherals without an external host processor.
The DSPIC30F3011 features 12-bit ADC with up to 200 ksps throughput, six PWM output pairs with complementary mode and dead-time control, a 16-bit timer/capture section, plus UART, SPI, and I2C communication modules. Its 30 programmable digital I/O pins provide flexible interface routing, and the integrated DSP engine supports fractional and integer MAC in a single cycle for real-time filtering and control loops.
Architecturally, the device uses a C-compiler-optimized instruction set with 84 base instructions and 16-bit-wide program paths combined with 24-bit-wide data paths. The 30 MIPS instruction throughput is supported by a 4-phase pipeline, and the peripheral set is mapped via a Peripheral Module Disable (PMD) scheme that cuts quiescent power by gating unused blocks.
Typical applications include brushless DC and AC induction motor control, uninterruptible power supplies, switch-mode power conversion, sensorless field-oriented control (FOC), and digital audio processing. The wide -40C to +85C industrial temperature range and proven motor-control firmware library make it a workhorse for cost-sensitive motor drives up to a few hundred watts.
A practical design consideration: at 20 MIPS execution, decoupling capacitors (100 nF ceramic close to each VDD/VSS pair plus 10 uF bulk) are essential because high-speed PWM edges couple noise into the analog supply. Plan PCB layout so the analog AVSS/AVDD pair sits away from switching traces.
This page synthesizes verified distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho DSPIC30F3011-20I/P — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với DSPIC30F3011-20I/P (cùng hình factor và footprint) — khác nhau ở Core Architecture, Mounting Type, Package, PWM Channels, Operating Temperature.
DSPIC30F3011-20E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC30F3010-20I/P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC30F3011-30I/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC30F3013-20I/P
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC30F2010-20I/P
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC30F2011-20I/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC30F3011-20I/P Tỷ lệ tối đa & tính chất điện
| Core Architecture | 16-bit dsPIC30F Modified Harvard |
| Program Memory (Flash) | 24 KB (8K x 24) |
| RAM | 1 KB |
| Instruction Throughput | 20 MIPS |
| CPU Clock Speed | 40 MHz (max) |
| Supply Voltage (Vdd) | 4.5 V to 5.5 V |
| I/O Pins | 30 (programmable) |
| ADC | 10-bit, up to 9 channels |
| PWM Channels | 6 channels (3 pairs) |
| Communication | UART, SPI, I2C |
| Timers | 5 x 16-bit |
| Hộp | 40-pin PDIP (P) |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| DSP Engine | Single-cycle 16x16 MAC |
| Kiểu lắp đặt | Through-Hole |
Cấu hình chân DSPIC30F3011-20I/P
| Chân 1 | MCLR — Master Clear (reset) input, active low |
| Chân 2 | AN0/VREF+/CN2 — Analog input 0 / positive voltage reference / change notification |
| Chân 3 | AN1/VREF-/CN3 — Analog input 1 / negative voltage reference / change notification |
| Chân 4 | AN2/CN4 — Analog input 2 / change notification |
| Chân 5 | AN3/CN5 — Analog input 3 / change notification |
| Chân 6 | AN4/CN6 — Analog input 4 / change notification |
| Chân 7 | AN5/CN7 — Analog input 5 / change notification |
| Chân 8 | OSC1/CLKI/CN0 — Oscillator crystal input / external clock input |
| Chân 9 | OSC2/CLKO/CN1 — Oscillator crystal output / clock output |
| Chân 10 | INT0/CN8 — External interrupt 0 / change notification |
| Chân 11 | VDD — Positive supply voltage (4.5-5.5 V) |
| Chân 12 | VSS — Ground reference |
| Chân 13 | FLTA/INT1/CN9 — PWM fault input / external interrupt 1 |
| Chân 14 | PWM1H/CN10 — PWM output 1 high side |
| Chân 15 | PWM1L/CN11 — PWM output 1 low side |
| Chân 16 | PWM2H/CN12 — PWM output 2 high side |
| Chân 17 | PWM2L/CN13 — PWM output 2 low side |
| Chân 18 | PWM3H/CN14 — PWM output 3 high side |
| Chân 19 | PWM3L/CN15 — PWM output 3 low side |
| Chân 20 | U1RX/CN16 — UART1 receive / change notification |
| Chân 21 | U1TX/CN17 — UART1 transmit / change notification |
| Chân 22 | U1ARX/CN18 — UART1 alternate receive / change notification |
| Chân 23 | U1ATX/CN19 — UART1 alternate transmit / change notification |
| Chân 24 | SCK1/CN20 — SPI1 clock / change notification |
| Chân 25 | SDI1/CN21 — SPI1 data in / change notification |
| Chân 26 | SDO1/CN22 — SPI1 data out / change notification |
| Chân 27 | SS1/CN23 — SPI1 slave select / change notification |
| Chân 28 | SCL/CN24 — I2C clock / change notification |
| Chân 29 | SDA/CN25 — I2C data / change notification |
| Chân 30 | T1CK/CN26 — Timer1 clock input / change notification |
| Chân 31 | VSS — Ground reference |
| Chân 32 | VDD — Positive supply voltage (4.5-5.5 V) |
| Chân 33 | T2CK/RC15 — Timer2 clock input / I/O port pin |
| Chân 34 | T3CK/IC8/RC13 — Timer3 clock / input capture 8 / I/O |
| Chân 35 | IC7/RC12 — Input capture 7 / I/O port pin |
| Chân 36 | IC6/RC11 — Input capture 6 / I/O port pin |
| Chân 37 | OC1/CN1 — Output compare 1 / change notification |
| Chân 38 | OC2/CN2 — Output compare 2 / change notification |
| Chân 39 | OC3/CN3 — Output compare 3 / change notification |
| Chân 40 | OC4/CN4 — Output compare 4 / change notification |
Ứng dụng tiêu biểu
DSPIC30F3011-20I/P phù hợp cho 7 Áp dụngs: Brushless DC Motor Control (BLDC), Switch-Mode Power Supply (SMPS) Digital Control, Uninterruptible Power Supply (UPS) Control, Sensorless Field-Oriented Control (FOC) Drives, Digital Audio Effects and Filtering, Industrial Sensor Signal Conditioning, LED Lighting and Architectural Dimming.
Brushless DC Motor Control (BLDC)
The DSPIC30F3011-20I/P is purpose-built for sensored and sensorless BLDC motor control. Its three pairs of complementary PWM outputs (PWM1H/L through PWM3H/L) drive the three half-bridges of a standard BLDC inverter directly without external gate-driver logic in low-voltage designs. The 10-bit ADC samples the back-EMF or shunt-current feedback at 200 ksps, sufficient for commutation loops running at 20 MIPS instruction rate. Microchip's motor-control firmware library provides free FOC and trapezoidal commutation routines targeting this exact device, enabling development of 24 V cordless tools, cooling fans, and small e-bike traction drives under 100 W.
Được đề xuất
Switch-Mode Power Supply (SMPS) Digital Control
The DSPIC30F3011-20I/P delivers the deterministic PWM generation and high-resolution ADC needed for digitally controlled SMPS designs up to 500 W. Its six PWM channels with programmable dead-time and fault input support PFC boost front-stages, phase-shifted full-bridges, and LLC resonant converters. The 20 MIPS throughput executes voltage-mode and average-current-mode control loops in software with sub-microsecond latency, replacing analog UC3842-style controllers while adding programmability. The wide 5 V supply tolerance matches auxiliary rails from offline flyback converters.
Được đề xuất
Uninterruptible Power Supply (UPS) Control
Low-cost line-interactive and online UPS systems under 1 kVA use the DSPIC30F3011-20I/P to control the inverter stage, manage battery charge cycles, and implement transfer-switch logic. The DSC's integrated DSP engine computes RMS voltage and current values in real time, enabling fast disconnect decisions when grid power fails. Its UART module connects to status LEDs and RS-232 monitoring ports, while the I2C interface talks to the battery monitor and EEPROM for log retention. The industrial temperature range supports deployment in unconditioned electrical closets.
Được đề xuất
Sensorless Field-Oriented Control (FOC) Drives
The DSPIC30F3011-20I/P runs Microchip's free sensorless FOC algorithm for PMSM motors in fans, pumps, and compressors. The DSP engine executes Clarke and Park transforms plus inverse transforms within the 50 microsecond control loop budget at 20 MIPS. Single-shunt current reconstruction uses the PWM reload event as the ADC trigger, eliminating external current-sense op-amps in cost-optimized designs. The 24 KB Flash holds the FOC library plus application-specific state machines for compressor or pump curves.
Được đề xuất
Digital Audio Effects and Filtering
Audio applications leverage the DSPIC30F3011-20I/P's MAC engine for real-time biquad filtering, parametric EQ, and dynamics processing in subwoofer crossovers, guitar amplifier modeling, and intercom systems. The single-cycle 16x16 MAC delivers 20 million multiply-accumulate operations per second, sufficient for 4-band parametric EQ at 48 kHz sample rate. SPI interfaces to external 16-bit ADC/DAC chips like the Microchip MCP4911 for higher audio fidelity than the internal 10-bit ADC allows.
Được đề xuất
Industrial Sensor Signal Conditioning
The DSPIC30F3011-20I/P serves as a smart front-end for load cells, strain gauges, and temperature bridges in industrial weighing scales and process instrumentation. Its 10-bit ADC reads bridge outputs at 200 ksps while the DSP engine executes moving-average and FIR filters to suppress mains-frequency noise at 50/60 Hz. UART or SPI connects to a host PLC or HMI display. The through-hole 40-PDIP package is ideal for hand-soldered prototypes and rugged field installations where surface-mount rework is impractical.
Được đề xuất
LED Lighting and Architectural Dimming
Architectural and stage lighting controllers use the DSPIC30F3011-20I/P to generate DMX-512 dimming curves and phase-cut dimmer outputs. The 6-channel PWM provides smooth 16-bit dimming after software filtering, while the DSP engine computes gamma-corrected brightness curves for human-eye perception. I2C interfaces to addressable RGB LED driver ICs, and UART implements the DMX physical layer with on-chip timer-based break detection, eliminating external protocol decoder chips.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC30F3011-20I/P — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | DSPIC30F3011-20E/P | DSPIC30F3010-20I/P | DSPIC30F3011-30I/P | DSPIC30F3013-20I/P |
|---|---|---|---|---|---|
| Package | 40-pin PDIP | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Instruction Throughput | 20 MIPS | 20 MIPS | 20 MIPS | 30 MIPS | 20 MIPS |
| Flash Memory | 24 KB | 24 KB | 24 KB | 24 KB | 24 KB |
| ADC Resolution | 10-bit | 10-bit | 12-bit | 10-bit | 12-bit |
| Supply Voltage | 4.5-5.5 V | 4.5-5.5 V | 2.5-5.5 V | 4.5-5.5 V | 2.5-5.5 V |
| Operating Temperature | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| PWM Channels | 6 (3 pairs) | 6 (3 pairs) | 6 (3 pairs) | 6 (3 pairs) | 8 (4 pairs) |
Bảo phân biệt quan trọng
- Integrated DSP engine eliminates external DSP chip (vsDSPIC30F2010-20I/P)
- 10-bit ADC versus 12-bit on the 3010 family (vsDSPIC30F3010-20I/P)
- 20 MIPS versus 30 MIPS on the -30 speed grade (vsDSPIC30F3011-30I/P)
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor as close as possible to each VDD/VSS pin pair (pins 11/12 and 31/32), and add a single 10 uF bulk capacitor near the package. For motor-control designs, separate the analog AVSS/AVDD traces from the switching node returns by at least 3 mm, or use a star-ground topology at the MCU VSS pin. The high di/dt from the PWM outputs demands a low-impedance ground plane under the IC.
The DSPIC30F3011-20I/P draws up to 50 mA during Flash programming and 30 mA typical active current at 20 MIPS. Estimated: at 5 V supply and full peripheral activity, plan for at least 250 mW of supply headroom. For battery-backed designs, the on-chip Low-Voltage Detect (LVD) module with selectable trip thresholds should be enabled to generate an early warning interrupt before Vdd drops below 4.0 V.
Do not leave the MCLR pin floating - it requires a 10 kohm pull-up to VDD for normal operation. In noisy motor-drive environments, add a 100 nF cap directly on MCLR to filter ESD and switching transients. Also configure unused I/O pins as outputs driving low (not inputs) to minimize shoot-through current during partial-power brown-out events.
The ADC reference voltage pins (VREF+/VREF-, shared with AN0/AN1 on this package) must be bypassed with 10 uF tantalum plus 100 nF ceramic. For 10-bit ADC performance, keep analog trace lengths under 50 mm and avoid routing analog signals adjacent to PWM outputs. The PWM fault input (FLTA) is edge-sensitive and must be debounced in software if connected to a mechanical switch or relay contact.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product declaration. Industrial temperature grade (I suffix) but not AEC-Q100 automotive qualified - for automotive motor control, use DSPIC30F5011 or dsPIC33F variants.
