DSPIC30F4012-20I/SP - 20 MIPS 16-bit DSC, 48KB Flash, SPDIP-28 | Microchip
부품 번호: DSPIC30F4012-20I/SP ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.6 | $2,300.00 |
| 1,000 | $4.1 | $4,100.00 |
DSPIC30F4012-20I/SP 개요
A Digital Signal Controller is a hybrid architecture that combines a microcontroller (MCU) with a Digital Signal Processor (DSP) on a single die, sitting within the broader semiconductor hierarchy of MCU -> embedded processor -> integrated circuit. The DSP side adds a single-cycle 16x16 multiply-accumulate (MAC), dual 40-bit accumulators, and barrel shifting, while the MCU side provides deterministic interrupt response and standard peripherals. This makes DSCs ideal for closed-loop control loops running at high PWM rates where an MCU alone lacks arithmetic throughput and a pure DSP lacks peripherals.
Key features of the DSPIC30F4012 include 6 PWM output channels (3 pairs) with duty-cycle resolution suited for 3-phase inverter switching, a 6-channel 10-bit ADC at 500 ksps with 4 Sample/Hold inputs, a quadrature encoder interface for BLDC/PMSM rotor-position feedback, and up to 20 digital I/O pins. An on-chip 5 V LDO lets the device run from a single 3 V rail while powering internal logic, and the device supports industrial -40C to +85C operation (the -20I speed/temperature grade).
Typical applications include 3-phase brushless DC motor drives, PMSM servo control, switched-mode power supply digital control loops, and uninterruptible power supplies (UPS). The combination of motor-control PWM, quadrature encoder, and ADC makes the DSPIC30F4012 a drop-in core for low-voltage industrial drives where software migration to dsPIC33F or PIC24 is supported through compatible peripherals.
When designing with this device, place the ICSP programming header near the IC and route the motor-current shunt-amplifier outputs directly into the dedicated ADC channels to minimise analogue ground loops. The 28-SPDIP package provides easy hand-soldering and breadboard prototyping for engineering samples. All pricing references in this document are as of 2026-09-22.
드롭인 대체품: DSPIC30F4012-20I/SP — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: DSPIC30F4012-20I/SP (동일 폼 팩터 및 풋프린트) — 차이점: Operating Temperature, Package, ADC, Program Memory (Flash), Mounting Type.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
DSPIC30F4011-20I/SP
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DSPIC30F4013-20I/SP
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPIC30F4012-20E/SP
✅ 드롭인✓ 재고 있음
$6.1 / 개
데이터시트 보기 →DSPIC30F4012-20I/SO
✅ 드롭인✓ 재고 있음
$5.1 / 개
데이터시트 보기 →DSPIC30F4012-20I/ML
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DSPIC30F4011-30I/SP
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPIC30F4012-20I/SP 최대 정격 & 전기적 특성
| Family | dsPIC30F |
| Core Type | dsPIC / 16-bit DSC |
| Instruction Set Architecture | Modified Harvard (16-bit) |
| Performance | 20 MIPS |
| Internal Clock Speed | 40 MHz |
| Program Memory (Flash) | 48 KB (16K x 24) |
| RAM | 2 KB |
| EEPROM Data Memory | 1 KB |
| Supply Voltage (VDD) | 3.0 V to 5.5 V |
| I/O Pins | 20 |
| ADC | 10-bit, 6 channels, 500 ksps |
| PWM Outputs | 6 channels (3 complementary pairs) |
| Quadrature Encoder Interface | Yes |
| 동작 온도 | -40C to +85C (Industrial, "I") |
| 패키지 | 28-SPDIP (SP) |
| Speed Grade | 20 MIPS ("-20") |
DSPIC30F4012-20I/SP 핀 구성
| 핀 1 | EMUD/AN0 — I/O port / EMU data / analog input |
| 핀 2 | EMUC/AN1 — I/O port / EMU clock / analog input |
| 핀 3 | AN2 — Analog input |
| 핀 4 | AN3 — Analog input |
| 핀 5 | AN4 — Analog input |
| 핀 6 | AN5 — Analog input |
| 핀 7 | VSS — Ground reference |
| 핀 8 | OSC1/CLKI — Crystal oscillator input / external clock |
| 핀 9 | OSC2/CLKO — Crystal oscillator output |
| 핀 10 | TMR1CK — Timer1 clock input |
| 핀 11 | FLTA — PWM fault A input |
| 핀 12 | PWM1H — PWM1 high-side output |
| 핀 13 | PWM1L — PWM1 low-side output |
| 핀 14 | PWM2H — PWM2 high-side output |
| 핀 15 | PWM2L — PWM2 low-side output |
| 핀 16 | PWM3H — PWM3 high-side output |
| 핀 17 | PWM3L — PWM3 low-side output |
| 핀 18 | QEA/IC1 — QEI phase A / input capture 1 |
| 핀 19 | QEB/IC2 — QEI phase B / input capture 2 |
| 핀 20 | INDX/IC3 — QEI index / input capture 3 |
| 핀 21 | U1RX/FLTB — UART1 RX / PWM fault B |
| 핀 22 | U1TX — UART1 TX |
| 핀 23 | VDD — Positive supply (3.0-5.5 V) |
| 핀 24 | SS1/SCK1 — SPI1 slave select / clock |
| 핀 25 | SDO1 — SPI1 data out |
| 핀 26 | SDI1/SDA1 — SPI1 data in / I2C1 data |
| 핀 27 | SCL1 — I2C1 clock |
| 핀 28 | AVDD — Analog positive supply |
일반적인 애플리케이션
DSPIC30F4012-20I/SP 적합 용도: 6 애플리케이션s: 3-Phase Brushless DC Motor Control, PMSM Servo Drive, Switched-Mode Power Supply Digital Control, Uninterruptible Power Supply (UPS) Inverter, Industrial Sensorless Motor Control, Power Conversion Reference Designs.
3-Phase Brushless DC Motor Control
The DSPIC30F4012-20I/SP is a canonical solution for 3-phase BLDC motor control in industrial and appliance applications. Its 6 PWM channels (3 complementary pairs) directly drive the three half-bridges of a 3-phase inverter with configurable dead-time generation, eliminating the need for an external PWM controller. The 20 MIPS DSP engine runs a complete field-oriented control (FOC) loop - including Clarke/Park transforms and PID controllers - inside the 50 us control period typical of 20 kHz PWM switching. The quadrature encoder interface captures rotor position from incremental encoders or Hall sensors, while the 6-channel 10-bit ADC samples phase currents at 500 ksps from shunt resistors. With 48 KB Flash and 2 KB RAM, the device fits the full FOC firmware plus tuning tables without external memory. Operating from a single 3.3 V or 5 V rail, the part integrates cleanly into low-voltage drive boards for fans, pumps, e-bikes, and small industrial servos. Drop-in upgrade to dsPIC33F is supported when higher MIPS or more memory are required later.
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PMSM Servo Drive
For permanent-magnet synchronous motor (PMSM) servo drives in CNC machines, robotics, and positioning systems, the DSPIC30F4012-20I/SP delivers the DSP throughput and motor-control peripherals required for sinusoidal FOC. The DSP engine's single-cycle 16x16 MAC and dual 40-bit accumulators handle the trigonometric computations (sin/cos, atan2) used in field-weakening and vector control. Its 20 MIPS sustains the control loop at the standard 8-20 kHz PWM rate while leaving headroom for serial communications (UART, SPI, I2C) to a host controller. The QEI module decodes A/B/index signals from optical encoders at up to several MHz, providing sub-degree rotor-position resolution. Industrial -40C to +85C temperature support lets the same part serve both cabinet-mounted servo drives and ruggedised outdoor equipment. The 28-SPDIP package simplifies hand-prototyping during firmware bring-up before committing to the SOIC-28 or QFN-44 surface-mount variants for production.
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Switched-Mode Power Supply Digital Control
Digital control loops in switched-mode power supplies (SMPS) - including PFC stages, DC-DC converters, and solar inverters - benefit from the DSPIC30F4012-20I/SP's 20 MIPS DSP engine, 10-bit ADC, and flexible PWM generator. A digital PFC stage using average-current-mode control requires a multiply per PWM cycle to compute the input current reference; the DSPIC30F4012's MAC executes this in a single cycle. The 6 PWM channels drive a synchronous buck or boost converter's high-side and low-side switches with programmable dead-time, while the ADC samples output voltage, inductor current, and input voltage simultaneously via the 4 S&H inputs. Operating from a 3.3 V or 5 V supply, the device integrates cleanly into 12 V/24 V/48 V bus converters. Compared with analogue control loops, the DSP approach adds programmability, adaptive control, telemetry, and fault logging at modest BOM cost. The 48 KB Flash holds lookup tables for PFC THD optimisation and PID coefficients across load ranges.
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Uninterruptible Power Supply (UPS) Inverter
Low-to-medium-power uninterruptible power supplies use the DSPIC30F4012-20I/SP to generate the sine-wave output that powers critical loads during mains failure. The DSC's 20 MIPS DSP engine runs a SPWM or SVPWM algorithm at 16-20 kHz carrier frequency to produce a clean 50/60 Hz output after LC filtering. The 10-bit ADC reads battery voltage, output voltage, output current, and heatsink temperature for closed-loop regulation and protection. The 6 PWM channels drive the full-bridge inverter or H-bridge topology that boosts battery DC to mains AC. With 48 KB Flash, the device fits the inverter control firmware plus battery-charging state machine and communications stack (Modbus UART) for remote monitoring. Industrial temperature rating and robust SPDIP packaging support both indoor UPS enclosures and outdoor telecom rectifier cabinets. Pin compatibility with the SOIC-28 and QFN-44 variants lets designers scale from prototype to high-volume SMT production.
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Industrial Sensorless Motor Control
Sensorless FOC of PMSM motors eliminates the encoder, reducing BOM cost and improving reliability in pumps, fans, and compressors. The DSPIC30F4012-20I/SP runs a BEMF-based sensorless algorithm by sampling the ADC during PWM off-time, with the DSP engine filtering and computing the rotor angle. The 20 MIPS DSP throughput handles the additional signal-processing load versus sensored FOC while still maintaining the 50 us control period. The 6-channel ADC samples three phase voltages and one DC-bus voltage simultaneously via the 4 S&H inputs, enabling single-shunt current reconstruction in some topologies. With 48 KB Flash, the firmware fits the sensorless observer (Sliding-Mode or Luenberger) plus a startup ramp from a forced alignment. Industrial temperature range and 5 V operation support HVAC and refrigeration compressor drives directly. The 28-SPDIP package is ideal for hand-built prototype drives during field tuning.
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Power Conversion Reference Designs
Microchip's reference designs for digital power conversion and motor control are built around the DSPIC30F4012-20I/SP, including the popular dsPICDEM MCLV-2 development board and dmcdonitor digital-power firmware libraries. Reference designs reduce development time by providing tested hardware schematics, firmware skeletons, and tuning guides that engineers adapt to their own products. The device's on-chip peripherals - PWM with dead-time, ADC with S&H, QEI, UART, SPI, I2C - cover the I/O requirements of most low-power conversion stages without external glue logic. The 48 KB Flash hosts the reference firmware plus user customisation, and the 2 KB RAM is sufficient for control-loop state variables and telemetry buffers. The 28-SPDIP package is breadboard-friendly, accelerating bring-up before committing to PCB layout. Migration to dsPIC33F or PIC24 is supported through Microchip's seamless migration path for users scaling up performance.
추천
추천 제품 요약
엔지니어링 참조 데이터: DSPIC30F4012-20I/SP — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | DSPIC30F4011-20I/SP | DSPIC30F4013-20I/SP | DSPIC30F4012-20E/SP | DSPIC30F4012-20I/SO | DSPIC30F4011-30I/SP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP (SP) | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | SOIC-28 (SO) - different footprint | 28-SPDIP (SP) - same |
| Flash Memory | 48 KB | 24 KB (-50%) | 64 KB (+33%) | 48 KB (same) | 48 KB (same) | 24 KB (-50%) |
| MIPS / Clock | 20 MIPS / 40 MHz | 20 MIPS / 40 MHz | 20 MIPS / 40 MHz | 20 MIPS / 40 MHz | 20 MIPS / 40 MHz | 30 MIPS / 60 MHz (+50%) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| PWM Channels | 6 (3 pairs) | 6 (3 pairs) | 6 (3 pairs) | 6 (3 pairs) | 6 (3 pairs) | 6 (3 pairs) |
| ADC | 10-bit, 6 ch, 500 ksps | 10-bit, 6 ch, 500 ksps | 10-bit, 6 ch, 500 ksps | 10-bit, 6 ch, 500 ksps | 10-bit, 6 ch, 500 ksps | 10-bit, 6 ch, 500 ksps |
| Supply Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V |
주요 차별점
- 48 KB Flash in 28-SPDIP - middle ground of dsPIC30F motor-control family (vs DSPIC30F4011-20I/SP)
- 20 MIPS DSP throughput in single 5 V device (vs DSPIC30F4011-30I/SP)
- Industrial -40C to +85C temperature range as standard (vs DSPIC30F4012-20E/SP)
- Through-hole SPDIP package simplifies hand-prototyping (vs DSPIC30F4012-20I/SO)
설계 노트
Place the ICSP programming header (RGLED, MCLR, VDD, VSS, EMUD, EMUC) on the PCB edge with single-row 0.1 inch pin spacing so a PICkit or ICD programmer can be clipped on without removing the chip. Microchip application note TB020 recommends keeping the EMUD/EMUC traces short and away from PWM switching nodes to prevent programming glitches. Estimated: trace length under 50 mm is sufficient for 40 MHz operation.
Decouple VDD with a 100 nF ceramic cap placed within 5 mm of the pin, and add a bulk 10 uF tantalum or aluminium-polymer cap on the same rail. The DSPIC30F4012 has separate AVDD and VSS pins - decouple AVDD with a separate 100 nF cap tied to AVSS to keep ADC noise below 1 LSB. Microchip datasheet 70135E Section 2.4 specifies the decoupling requirements. Estimated: total VDD bulk capacitance of 22 uF handles 20 MIPS switching transients.
Do not confuse the DSPIC30F4012 (48 KB Flash, 28 pins) with the DSPIC30F4011 (24 KB Flash) or DSPIC30F3010/3011/3012 family (different pin count and reduced peripherals) - the device ID register reads 0x4012 for the 4012 only. A common pitfall is migrating code written for the 4011/4012 to the QFN-44 package without updating pin mappings for the extra analog and digital I/O. Verify the exact silicon revision with #pragma config directives in MPLAB X to avoid subtle errata issues.
When using the QEI module for rotor-position feedback, route the A/B/Index signals as differential pairs with matched lengths to within 2 mm to maintain timing margin at high encoder speeds. Microchip errata documents note that QEI input glitch filters should be enabled in noisy motor environments to prevent false counts at start-up. Add 1 nF ceramic caps on each QEI input to GND for ESD and EMI protection. Estimated: 100 pF to 1 nF range is typical for industrial installations.
규정 준수 정보
RoHS, REACH, and lead-free status were not confirmed in the verified web data; defer to the manufacturer product page or distributor environmental compliance documents for definitive certification. The device is not AEC-Q100 qualified - for automotive motor control consider the dsPIC33F AEC-Q100 variants.
