DSPIC30F3014-20I/PT - 16-bit DSC, 20 MIPS, 24KB Flash, 44-TQFP | Microchip
料号： DSPIC30F3014-20I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.18 | $5.18 |
| 10 | $4.62 | $46.20 |
| 100 | $4.07 | $407.00 |
| 500 | $3.65 | $1,825.00 |
| 1,000 | $3.25 | $3,250.00 |
DSPIC30F3014-20I/PT 概述
A Digital Signal Controller (DSC) is a hybrid class of embedded processor that combines microcontroller deterministic behavior and on-chip peripherals with a dedicated DSP computational engine. The dsPIC30F architecture in particular targets 5 V motor control systems where noise immunity, wide ADC dynamic range, and deterministic interrupt response are required, positioning it above classical 8-bit MCUs but below floating-point DSPs such as the dsPIC33F family. The dsPIC30F3014 is one of the smallest members of the dsPIC30F family, optimized for cost-sensitive BLDC and PFC applications.
Key features of the DSPIC30F3014-20I/PT include a 12-bit ADC with up to 200 ksps conversion rate, three 16-bit timers, an input capture module, a motor-control PWM with up to 6 output channels, two UART, one SPI, and one I2C peripheral. The -20I speed grade corresponds to a 20 MIPS execution rate, with internal oscillator support up to 7.5 MHz and external clock up to 40 MHz. Industrial-grade operating temperature of -40 C to +85 C is specified by the 'I' suffix.
Architecture-wise, the dsPIC30F core features a 24-bit instruction word with separate 16-bit data paths, a 16x16-bit single-cycle multiplier, and a 40-bit barrel shifter. This dual-bus Harvard structure enables efficient DSP operations such as finite impulse response (FIR) and infinite impulse response (IIR) filters, with single-cycle MAC throughput. Code protection and ICSP (In-Circuit Serial Programming) are built in for production-line firmware update.
Typical applications include BLDC and PMSM motor control, switch-mode power supply (SMPS) power factor correction, three-phase AC induction motor drives, uninterruptible power supplies (UPS), and sensor-less FOC control loops. The 5 V tolerant ADC simplifies signal conditioning in noisy industrial environments.
When designing with this device, ensure the 2.5-5.5 V supply is decoupled with both bulk and 100 nF ceramic capacitors placed close to the AVDD/AVSS pins. Use the dedicated VREF pin with a 10 uF bypass capacitor to maximize ADC accuracy, and reserve the DSP engine for loop closure rather than general-purpose arithmetic to free up MIPS headroom.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： DSPIC30F3014-20I/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DSPIC30F3014-20I/PT （相同外形与封装尺寸） ——差异在于 Core Architecture, ADC, Package, Timers, Program Memory (Flash).
快速对比工具——选择替代料号进行并排对比：
DSPIC30F3014-30I/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC30F4013-20I/PT
✅ 直接替换✓ 有现货
$6.25 / 个
查看数据手册 →DSPIC30F3011-20I/PT
✅ 直接替换✓ 有现货
$3.85 / 个
查看数据手册 →DSPIC30F2023-30I/PT
✅ 直接替换✓ 有现货
$3.78 / 个
查看数据手册 →DSPIC30F3014-20I/PT 最大额定值与电气特性
| Core Architecture | dsPIC30F 16-bit DSC |
| Program Memory (Flash) | 24 KB (8K x 24 words) |
| Data RAM | 1.5 KB (512 x 24 words) |
| Instruction Throughput | 20 MIPS |
| Maximum CPU Clock | 40 MHz |
| Operating Voltage (Vdd) | 2.5 V to 5.5 V |
| 工作温度 | -40 C to +85 C (Industrial) |
| I/O Pins | 20 |
| ADC | 12-bit, 200 ksps, up to 9 channels |
| PWM Outputs | 6 channels, motor-control PWM module |
| Timers | 3 x 16-bit |
| Input Capture | 2 channels |
| UART | 2 modules |
| SPI | 1 module |
| I2C | 1 module |
| 封装 | TQFP-44 (10x10 mm) |
| 安装类型 | Surface Mount |
| DSP Engine | 1 x MAC, 40-bit accumulator, barrel shifter |
| RoHS 状态 | Compliant |
| Speed Grade | 20 MIPS (-20I) |
DSPIC30F3014-20I/PT 引脚配置
| 引脚 1 | SDA/RD11 — I2C data signal |
| 引脚 2 | SCL/RD10 — I2C clock signal |
| 引脚 3 | OSC1/CLKI — Crystal oscillator input |
| 引脚 4 | OSC2/CLKO — Crystal oscillator output |
| 引脚 5 | VDD — Positive supply for digital logic |
| 引脚 6 | RBIAS/RE7 — Bias current input or I/O |
| 引脚 7 | AVSS — Analog ground |
| 引脚 8 | AVDD — Analog positive supply |
| 引脚 9 | VREF-/RA9 — ADC reference low or I/O |
| 引脚 10 | VREF+/RA10 — ADC reference high or I/O |
| 引脚 11 | AN0/RA0 — Analog input 0 / I/O |
| 引脚 12 | AN1/RA1 — Analog input 1 / I/O |
| 引脚 13 | AN2/RA2 — Analog input 2 / I/O |
| 引脚 14 | AN3/RA3 — Analog input 3 / I/O |
| 引脚 15 | AN4/RA4 — Analog input 4 / I/O |
| 引脚 16 | AN5/RA5 — Analog input 5 / I/O |
| 引脚 17 | AN6/RA6 — Analog input 6 / I/O |
| 引脚 18 | AN7/RA7 — Analog input 7 / I/O |
| 引脚 19 | AN8/RB0 — Analog input 8 / I/O |
| 引脚 20 | AN9/RB1 — Analog input 9 / I/O |
| 引脚 21 | AN10/RB2 — Analog input 10 / I/O |
| 引脚 22 | AN11/RB3 — Analog input 11 / I/O |
| 引脚 23 | PWM1H/RB4 — PWM output 1 high side |
| 引脚 24 | PWM1L/RB5 — PWM output 1 low side |
| 引脚 25 | PWM2H/RB6 — PWM output 2 high side |
| 引脚 26 | PWM2L/RB7 — PWM output 2 low side |
| 引脚 27 | PWM3H/RB8 — PWM output 3 high side |
| 引脚 28 | PWM3L/RB9 — PWM output 3 low side |
| 引脚 29 | VSS — Digital ground |
| 引脚 30 | VDD — Positive supply for digital logic |
| 引脚 31 | RC1/T1CK — I/O or Timer1 clock input |
| 引脚 32 | RC2/IC1 — I/O or Input Capture 1 |
| 引脚 33 | RC3/IC2 — I/O or Input Capture 2 |
| 引脚 34 | RC4/OC1 — I/O or Output Compare 1 |
| 引脚 35 | INT0/RF6 — External interrupt 0 |
| 引脚 36 | U1RX/RF2 — UART1 receive |
| 引脚 37 | U1TX/RF3 — UART1 transmit |
| 引脚 38 | U2RX/RG6 — UART2 receive |
| 引脚 39 | U2TX/RG7 — UART2 transmit |
| 引脚 40 | PWM4H/RG8 — PWM output 4 high side |
| 引脚 41 | PWM4L/RG9 — PWM output 4 low side |
| 引脚 42 | FLTA/RD9 — PWM fault input |
| 引脚 43 | MCLR — Master clear reset input |
| 引脚 44 | PGD — ICSP data |
典型应用
DSPIC30F3014-20I/PT 适用于 6 应用s: BLDC / PMSM Motor Control, Switch-Mode Power Supply with Power Factor Correction, Three-Phase AC Induction Motor Drive, Uninterruptible Power Supply (UPS) Control, Industrial HVAC Fan / Blower Control, Small Appliance Variable-Frequency Drives.
BLDC / PMSM Motor Control
The DSPIC30F3014-20I/PT is a reference Microchip platform for BLDC and PMSM sensorless motor control. Its 6-channel motor-control PWM with complementary outputs and programmable dead time directly drives three-phase inverter half-bridges, eliminating external gate-driver logic for low-voltage drives. The 12-bit 200 ksps ADC samples back-EMF at 20+ kHz for sensorless FOC, while the single-cycle MAC closes the FOC loop within 5-10 microseconds. The 5 V ADC tolerance removes external resistive dividers for industrial 24 V bus current sensing, and 20 MIPS provides 40-50% headroom for the observer, ramp-up, and UART diagnostic task overhead.
推荐
Switch-Mode Power Supply with Power Factor Correction
The DSPIC30F3014-20I/PT's combination of 20 MIPS, 6-channel PWM, and 12-bit ADC makes it a natural choice for digital PFC controllers and SMPS control loops. The DSP engine executes the average-current-mode control loop and input-voltage feed-forward at 50 kHz switching rates without leaving any MIPS margin to spare. The 5 V ADC range directly samples rectified 100-240 V line voltage through a resistor divider, eliminating instrumentation-amp signal conditioning. The 24 KB Flash holds the soft-start, brown-out, and AC-line synchronization state machines that PFC firmware requires, while 1.5 KB RAM buffers 16-bit duty-cycle and current values across interrupt frames.
推荐
Three-Phase AC Induction Motor Drive
For V/F and indirect-FOC three-phase AC induction motor drives, the DSPIC30F3014-20I/PT provides exactly the peripheral mix needed without overhead. Three complementary PWM pairs drive the inverter IGBTs with programmable dead time, the 12-bit ADC samples the two shunt currents and DC bus, and the 20 MIPS DSP engine executes the inverse Park/Clarke transforms and slip calculation. The 44-TQFP package exposes enough I/O for encoder input, brake output, and fault detection. Industrial temperature range and 5 V ADC tolerance are critical for HVAC blower and pump drives installed near motors.
推荐
Uninterruptible Power Supply (UPS) Control
The DSPIC30F3014-20I/PT handles inverter control and battery management in small-to-medium UPS systems. Its 6-channel PWM drives the full-bridge inverter stage, while the 12-bit ADC monitors battery voltage, charge current, output voltage, and temperature. The 24 KB Flash fits inverter sinusoidal PWM generation, battery SOC estimation, and alarm-logging firmware. The 5 V operating range simplifies interface to legacy analog battery-monitoring front-ends. Two UARTs allow simultaneous communication with the host supervisory MCU and a front-panel HMI without external UART multiplexer.
推荐
Industrial HVAC Fan / Blower Control
Cost-sensitive industrial HVAC blower and exhaust fans use the DSPIC30F3014-20I/PT to implement sensorless trapezoidal or basic FOC control. The 20 MIPS budget is sufficient for a 4-pole BLDC at up to 60,000 RPM mechanical, while the 6-channel PWM directly drives discrete half-bridge MOSFETs with dead-time insertion. The industrial -40 C to +85 C temperature grade and 5 V ADC tolerance accommodate rooftop HVAC electronics where line transients and high ambient are common. 24 KB Flash holds the application state machine, error detection, and Modbus RTU stack for BMS integration.
推荐
Small Appliance Variable-Frequency Drives
Washing machines, dishwashers, and variable-frequency compressors embed the DSPIC30F3014-20I/PT as the motor-control MCU. The 24 KB Flash fits the appliance-specific motor-startup profiles, load-balancing algorithms, and fault-detection state machines. The 12-bit ADC samples the motor current and line voltage for protection, while 6 PWM channels drive the inverter directly. Two UARTs enable appliance-bus communication (LIN or proprietary) and debug-port logging. The TQFP-44 package's 10x10 mm footprint is small enough for the tight control boards of compact appliances, and the 5 V tolerance simplifies interface to legacy appliance sensors.
推荐
推荐产品汇总
工程参考数据： DSPIC30F3014-20I/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DSPIC30F3014-30I/PT | DSPIC30F4013-20I/PT | DSPIC30F3011-20I/PT | DSPIC30F2023-30I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (10x10 mm) | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same |
| Core | dsPIC30F 16-bit DSC | dsPIC30F 16-bit DSC | dsPIC30F 16-bit DSC | dsPIC30F 16-bit DSC | dsPIC30F 16-bit DSC |
| MIPS | 20 MIPS | 30 MIPS (+50%) | 20 MIPS | 20 MIPS | 30 MIPS |
| Flash Program Memory | 24 KB | 24 KB | 48 KB (+100%) | 24 KB | 12 KB (-50%) |
| Data RAM | 1.5 KB | 1.5 KB | 2 KB (+33%) | 1 KB (-33%) | 1 KB (-33%) |
| Operating Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| ADC | 12-bit, 200 ksps | 12-bit, 200 ksps | 12-bit, 200 ksps | 12-bit, 200 ksps | 10-bit, 500 ksps |
关键差异点
- 5 V ADC tolerance in a 16-bit DSC （对比 dsPIC33FJ16MC102)
- 20 MIPS DSP engine with 40-bit accumulator （对比 PIC24HJ12GP202)
- Integrated 6-channel motor-control PWM with complementary outputs （对比 DSPIC30F2020-30I/MM)
- 44-TQFP package with 20 GPIO and 12-bit ADC （对比 DSPIC30F3010-30I/SO)
设计说明
Estimated: at maximum 40 MHz CPU clock and 5.5 V supply, the DSPIC30F3014-20I/PT core draws approximately 25 mA typical and up to 40 mA worst case during DSP activity. Provide a 100 nF ceramic decoupling capacitor on every VDD pin and a single 10 uF bulk capacitor on the board's 5 V rail. Place the 100 nF caps within 5 mm of the IC pins to suppress the high-frequency current transients generated by the motor-control PWM and ADC sampling events.
Route the analog and digital grounds as a star topology with the AVSS pin tied directly to the ground plane near the VREF bypass capacitor. The 12-bit ADC's 200 ksps sampling is sensitive to ground bounce from the high-current PWM outputs; keeping the analog ground return path short (<10 mm) and separated from digital ground noise reduces ADC ENOB from approximately 11 bits to 11.5+ bits in motor-control layouts.
Place the external 4-10 MHz crystal as close as possible to the OSC1/OSC2 pins, with short traces and a ground guard ring on both sides. If using the internal 7.5 MHz RC oscillator instead, configure the OSCCON register for FINULP mode to reduce EMI at the cost of 2% frequency accuracy. For UART communications at 115200 baud or higher, do not use the internal RC oscillator without calibration because baud-rate error exceeds 1.5% and causes framing errors.
The TQFP-44 package has a thermal resistance of approximately 50 C/W junction-to-ambient. At typical industrial motor-control activity, the DSPIC30F3014-20I/PT dissipates 100-150 mW, which gives a 5-7 C temperature rise above ambient. No external heatsink is required, but the PCB copper area under the exposed pad of any QFN variants must be maximized to maintain the same thermal performance in surface-mount layouts.
Do not leave the MCLR pin floating - tie it to VDD through a 10 kohm pull-up resistor and place a 100 nF decoupling cap directly at the pin. Floating MCLR causes random resets during PWM switching events. Also, ensure the FLTA pin (PWM fault input) is configured with the correct polarity via the FWDT register, or the motor-control PWM will disable itself on every startup when the fault pin is left undriven.
合规信息
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - automotive designs should use AEC-Q100-qualified dsPIC33F variants.