DSPIC33FJ128MC706A-I/PT - 16-bit 40MIPS 128KB Flash DSC | Microchip
부품 번호: DSPIC33FJ128MC706A-I/PT ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $8.4 | $8.40 |
| 10 | $7.72 | $77.20 |
| 100 | $6.6 | $660.00 |
| 500 | $5.85 | $2,925.00 |
| 1,000 | $5.2 | $5,200.00 |
DSPIC33FJ128MC706A-I/PT 개요
A Digital Signal Controller (DSC) is a hybrid device that combines the deterministic interrupt-driven control of a microcontroller (MCU) with the high-throughput signal-processing capabilities of a digital signal processor (DSP). Within the broader taxonomy, the dsPIC33F sits above a generic 8-bit PIC MCU and below 32-bit MCU/DSP cores such as ARM Cortex-M4F. Its single-cycle MAC and barrel shifter enable real-time PID, space-vector modulation, and digital filter loops that 8-bit MCUs cannot execute at the required loop rate.
Key feature highlights include 11 timers, 8 DMA channels for offloading core data movement, four serial communication interfaces (UART/SPI/I2C), and a 10-bit ADC capable of up to 1.1 Msps with multiple S&H channels for simultaneous current/voltage sampling. The integrated CAN 2.0B module supports industrial automation networks, while the high-resolution PWM block provides 7.5 ns edge placement - critical for field-oriented control of PMSM and BLDC motors.
The architecture pairs a 16-bit data path with a 24-bit instruction word, allowing C-compiler-friendly addressing while preserving single-cycle DSP operations. An 8-channel hardware DMA engine reduces CPU overhead when streaming ADC samples into RAM, which is essential for closed-loop current control at 20 kHz PWM without jitter.
Typical applications include BLDC and PMSM motor drives, field-oriented control (FOC) inverters, switched-mode power supplies (PFC/digital LLC), industrial PLCs with CAN connectivity, solar micro-inverters, and automotive accessory drives. The wide operating voltage (3.0 V to 3.6 V) and 40 MIPS throughput make it equally suited to 24 V industrial bus systems and low-voltage battery-powered equipment.
Designers should plan for crystal selection (7.37 MHz or 10 MHz typical with PLL to 40 MIPS), decoupling per VDD/AVDD pin, and proper PCB separation of analog and digital grounds to achieve the ADC SNR published in the datasheet. The 64-TQFP footprint gives generous I/O and analog channel headroom for three-phase motor-control boards.
This page synthesizes distributor pricing, drop-in alternatives drawn from the same dsPIC33FJ128MC706A family, and practical design notes not consolidated in the manufacturer datasheet.
드롭인 대체품: DSPIC33FJ128MC706A-I/PT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: DSPIC33FJ128MC706A-I/PT (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, Core Architecture, Timers, Operating Temperature.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
DSPIC33FJ128MC706A-I/MR
✅ 드롭인✓ 재고 있음
$6.54 / 개
데이터시트 보기 →DSPIC33FJ128MC706A-E/PT
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPIC33FJ128MC510A-I/PF
✅ 드롭인✓ 재고 있음
$8.1 / 개
데이터시트 보기 →DSPIC33FJ128MC506A-I/PT
✅ 드롭인✓ 재고 있음
$3.2 / 개
데이터시트 보기 →DSPIC33FJ128MC510A-E/PT
✅ 드롭인✓ 재고 있음
$5.45 / 개
데이터시트 보기 →DSPIC33FJ128GP706A-I/PT
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$7.86 / 개
데이터시트 보기 →DSPIC33FJ128MC706A-I/PT 최대 정격 & 전기적 특성
| Core Architecture | dsPIC33F 16-bit modified Harvard DSC |
| CPU Speed | 40 MIPS (MIPS) |
| Program Memory (Flash) | 128 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| 동작 온도 | -40 C to +85 C (Industrial) |
| 패키지 | 64-pin TQFP (10x10 mm) |
| 실장 유형 | Surface Mount |
| Timers | 11 |
| DMA Channels | 8 |
| Serial I/O Interfaces | 4 (UART/SPI/I2C) |
| ADC | 10-bit, up to 1.1 Msps, multiple S&H |
| PWM Resolution | 7.5 ns edge placement (motor control PWM) |
| CAN | CAN 2.0B |
| Instruction Word | 24-bit |
| Data Path | 16-bit |
| RoHS 상태 | Compliant |
DSPIC33FJ128MC706A-I/PT 64-pin tqfp (10x10 mm) 핀 구성 가이드
DSPIC33FJ128MC706A-I/PT(64-pin tqfp (10x10 mm) 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: DSPIC33FJ128MC706A-I/PT.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
DSPIC33FJ128MC706A-I/PT 적합 용도: 6 애플리케이션s: BLDC and PMSM Motor Drives, Field-Oriented Control (FOC) Inverters, Switched-Mode Power Supplies (PFC/Digital LLC), Industrial PLCs with CAN Connectivity, Solar Micro-Inverters, Automotive Accessory Drives.
BLDC and PMSM Motor Drives
The DSPIC33FJ128MC706A-I/PT's dedicated motor-control PWM block with 7.5 ns edge placement and dedicated quadrature encoder interface make it purpose-fit for BLDC and PMSM field-oriented control (FOC). The 40 MIPS core executes the full FOC loop including Clarke/Park transforms, SVPWM modulation, and PI control within a 20 kHz PWM period with substantial margin. Dual S&H ADC channels enable simultaneous DC-bus and phase current sampling, eliminating the sequence-dependent sampling error that degrades torque ripple in three-phase systems.
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Field-Oriented Control (FOC) Inverters
The DSPIC33FJ128MC706A-I/PT executes a complete sensorless FOC algorithm in real time using the Microchip Motor Control Library (AN1078 and AN1292). Its 128 KB Flash accommodates the full library plus user application, and the single-cycle MAC and barrel shifter keep the FOC interrupt service routine under 10 us at 40 MHz. The dedicated 10-bit ADC and dual S&H channels sample two phase currents plus the DC-bus voltage in the same PWM cycle, enabling sliding-mode observer-based sensorless startup.
추천
Switched-Mode Power Supplies (PFC/Digital LLC)
The DSPIC33FJ128MC706A-I/PT suits digital control of PFC and LLC resonant converters, where the 40 MIPS core handles voltage-mode and current-mode control loops plus housekeeping tasks. Its high-resolution PWM enables digital PFC achieving near-unity power factor with adaptive dead-time insertion. The integrated CAN bus is valuable for digital power shelves in telecom rectifiers that need to report telemetry to the system controller.
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Industrial PLCs with CAN Connectivity
The DSPIC33FJ128MC706A-I/PT integrates a CAN 2.0B peripheral that drops directly into CANopen and DeviceNet industrial networks, making it suitable for I/O modules and small PLCs. Its 128 KB Flash stores the CANopen stack plus ladder-logic interpreter, and the four serial interfaces handle RS-485, I2C sensors, and SPI peripherals concurrently. The -40 C to +85 C industrial temperature range tolerates cabinet environments, and the 64-TQFP package provides enough I/O for 16 digital inputs plus analog channels.
추천
Solar Micro-Inverters
The DSPIC33FJ128MC706A-I/PT is well suited to single-panel solar micro-inverters running MPPT and grid-tie control loops. Its PWM resolution and 40 MIPS throughput allow interleaved PFC plus full-bridge LLC digital control, while the CAN interface supports panel-to-inverter communication in residential micro-inverter arrays. The industrial temperature grade and 3.3 V operation match the inverter's auxiliary supply rails derived from the PV string.
추천
Automotive Accessory Drives
The DSPIC33FJ128MC706A-I/PT and its -E variant (AEC-Q100 qualified) are used in automotive accessory motors such as HVAC blowers, electric water pumps, and electric power-steering pumps. The motor-control PWM peripherals deliver smooth torque with low acoustic noise, while the CAN bus integrates with the vehicle's chassis network. The automotive-grade -E variant operates to +125 C and survives under-hood thermal stress.
추천
추천 제품 요약
엔지니어링 참조 데이터: DSPIC33FJ128MC706A-I/PT — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | DSPIC33FJ128MC706A-I/MR | DSPIC33FJ128MC706A-E/PT | DSPIC33FJ128MC510A-I/PF | DSPIC33FJ128MC506A-I/PT | DSPIC33FJ128GP706A-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (10x10 mm) | QFN-64 (9x9 mm) - different PCB land pattern | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same |
| Core Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| CAN 2.0B | Yes | Yes | Yes | Yes | No | No |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| AEC-Q100 Automotive | Not qualified (I suffix) | Not qualified (I suffix) | AEC-Q100 qualified (E suffix) | Not qualified (I suffix) | Not qualified (I suffix) | Not qualified (I suffix) |
| Motor Control PWM | Yes (dedicated, 7.5 ns edge) | Yes (dedicated, 7.5 ns edge) | Yes (dedicated, 7.5 ns edge) | Yes (dedicated) | Yes (dedicated) | No (general-purpose PWM only) |
주요 차별점
- Integrated CAN 2.0B plus dedicated motor-control PWM in single 64-TQFP (vs DSPIC33FJ128MC506A-I/PT)
- 40 MIPS core with 128 KB Flash - largest density in the MC706 family (vs DSPIC33FJ128MC510A-I/PF)
- Industrial -40 C to +85 C temperature grade for cabinet-mounted drives (vs DSPIC33FJ128MC706A-E/PT)
설계 노트
Estimated: at maximum CPU activity of 40 MIPS and 3.3 V supply with 60 mA core current draw, internal power dissipation is approximately 200 mW. The TQFP-64 (PT) package has a typical theta_JA around 50 C/W on a 4-layer 1-oz PCB, giving a junction temperature rise near 10 C above ambient - well within the +85 C industrial limit. For closed motor-drive applications running at +85 C ambient plus MOSFET switching losses, derate by ensuring at least 1 sq inch of continuous copper under the thermal pad region.
Place a 10 uF bulk tantalum or ceramic plus a 100 nF decoupling capacitor on every VDD/AVDD pin pair, located within 3 mm of the pin per Microchip's decoupling guidelines. Use separate analog and digital ground planes joined at a single point near the device's GND pins. The on-chip voltage regulator requires an external 10 uF + 100 nF cap on VCAP to maintain 2.5 V internal core rail stability - omitting this cap is a common cause of erratic firmware behavior.
Do not leave unused I/O pins floating - configure them as outputs or enable the internal pull-ups. The JTAG TMS/TCK pins share with general-purpose I/O; if JTAG is not used, set the JTAGEN bit in the configuration word to release the pins. The MCLR pin requires a 10 kohm pull-up to VDD; if left floating, the device may randomly enter reset. For low-power sleep modes, configure all peripherals for wake-on-interrupt to avoid current spikes on resume.
Keep the external crystal or oscillator traces within 10 mm of the OSC1/OSC2 pins and surround them with a ground pour to minimize EMI. For ADC accuracy, route analog inputs (AN0-ANx on PORTB) away from PWM and switching traces - a 0.5 mm trace-to-trace spacing on adjacent layers prevents capacitive coupling. The CAN bus transceiver should sit within 25 mm of the C1RX/C1TX pins, with a 120 ohm split termination at the bus ends.
규정 준수 정보
Industrial-grade part (I suffix), not AEC-Q100. For AEC-Q100 automotive qualification choose -E variant. RoHS and lead-free status per Microchip product page as of 2026-09-26.
