DSPIC33FJ64MC706A-E/MR - 16-bit 40MIPS DSC 64KB | Microchip
料号： DSPIC33FJ64MC706A-E/MR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.42 | $7.42 |
| 10 | $6.75 | $67.50 |
| 100 | $6.1 | $610.00 |
| 500 | $5.65 | $2,825.00 |
| 1,000 | $5.2 | $5,200.00 |
DSPIC33FJ64MC706A-E/MR 概述
A digital signal controller combines the deterministic interrupt response and peripheral set of a microcontroller with the multiply-accumulate computational throughput of a DSP. In the power-management hierarchy of embedded systems, a DSC sits between a general-purpose MCU and a dedicated DSP: it executes real-time control loops, such as field-oriented control of motors, while managing communication, sensing, and system supervision on the same silicon.
Key features include the 16-bit dsPIC33F core with DSP instruction extensions, an on-chip CAN 2.0B controller for industrial networking, motor-control PWM peripherals capable of complementary outputs with dead-time insertion, and advanced analog integration for sensing. The dsPIC33FJ64MC706A family is explicitly optimized for motor control applications by Microchip, covering brushless DC, single- and 3-phase induction, and switched reluctance motor architectures.
Technically, the device executes up to 40 million instructions per second at 3.0V to 3.6V operation, with a 24-bit instruction word architecture. Seamless migration paths exist to PIC24 MCU and dsPIC30F DSC devices in similar packages, protecting software investment. The extended -40C to +125C E-temperature suffix suits industrial enclosures, traction cabinets, and under-hood-adjacent electronics where ambient temperatures exceed commercial ratings.
Typical applications include brushless DC motor drives, 3-phase induction motor inverters, uninterruptible power supplies (UPS), switched reluctance motor controllers, and power-factor-correction stages where the PWM engine, ADC, and CAN bus operate in a coordinated real-time loop.
A key design consideration is supply integrity: the QFN exposed pad must be soldered to a solid ground plane, and decoupling capacitors placed directly at each VDD/VSS pair to support the 40 MHz switching currents during simultaneous PWM edge transitions.
This page synthesizes distributor pricing, drop-in same-package alternatives, pinout guidance, and practical design notes not consolidated in the manufacturer datasheet.
直接替换替代料： DSPIC33FJ64MC706A-E/MR ——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： DSPIC33FJ64MC706A-E/MR （相同外形与封装尺寸） ——差异在于 Core Architecture, Package, DMA Channels, Motor Control PWM, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ128MC706A-E/MR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$7.6 / 个
查看数据手册 →DSPIC33FJ256MC706A-E/MR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ32MC706A-E/MR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ64MC706AT-E/MR
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ64MC706A-E/PT
✅ 直接替换✓ 有现货
$5.85 / 个
查看数据手册 →DSPIC33FJ64MC706A-E/MR 最大额定值与电气特性
| Core Architecture | 16-bit dsPIC33F DSC |
| 最大时钟频率 | 40 MHz |
| Performance | 40 MIPS |
| Program Memory (Flash) | 64 KB |
| RAM | 16,384 words |
| Instruction Width | 24 bit |
| 封装 | 64-QFN with exposed pad (MR) |
| 工作温度范围 | -40C to +125C |
| Communication Interfaces | CAN 2.0B, UART, SPI, I2C |
| Motor Control PWM | Yes (complementary PWM with dead-time control) |
| 安装类型 | Surface Mount |
| Container / Packaging | Tube |
| 分类 | Digital Signal Processors & Controllers (DSP, DSC) |
| Family Specialization | Motor Control and Advanced Analog |
DSPIC33FJ64MC706A-E/MR 引脚配置
| 引脚 1 | MCLR — Master clear reset input, active low |
| 引脚 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive voltage reference |
| 引脚 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative voltage reference |
| 引脚 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI1 slave select |
| 引脚 5 | AN3/INDX/CN5/RB3 — Analog input 3 / QEI index input |
| 引脚 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / QEI phase A / input capture 7 |
| 引脚 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / QEI phase B / input capture 8 |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | OSC1/CLKI/CN30/RA2 — Crystal oscillator input / external clock input |
| 引脚 10 | OSC2/CLKO/ECOUT/CN29/RA3 — Crystal oscillator output / clock output |
| 引脚 11 | VDD — Positive supply (3.0V-3.6V) |
| 引脚 12 | VSS — Ground reference |
| 引脚 13 | SOSCI/CN1/RB6 — Secondary oscillator input / change notification |
| 引脚 14 | SOSCO/T1CK/CN0/RB7 — Secondary oscillator output / Timer1 clock |
| 引脚 15 | CN8/RC7/U1CTS — Change notification / UART1 CTS |
| 引脚 16 | U1TX/SDO1/RC6 — UART1 transmit / SPI1 data out |
| 引脚 17 | U1RX/SDI1/RC5 — UART1 receive / SPI1 data in |
| 引脚 18 | SCK1/RC4 — SPI1 serial clock |
| 引脚 19 | CN5/RC3 — Port C I/O / change notification |
| 引脚 20 | T2CK/RC2 — Timer2 external clock input |
| 引脚 21 | T1CK/IC1/RC1 — Timer1 clock / input capture 1 |
| 引脚 22 | OC1/RC0 — Output compare 1 output |
| 引脚 23 | PWM1L1/RE0 — Motor PWM 1 low output, channel 1 |
| 引脚 24 | PWM1H1/RE1 — Motor PWM 1 high output, channel 1 |
| 引脚 25 | PWM1L2/RE2 — Motor PWM 1 low output, channel 2 |
| 引脚 26 | PWM1H2/RE3 — Motor PWM 1 high output, channel 2 |
| 引脚 27 | PWM1L3/RE4 — Motor PWM 1 low output, channel 3 |
| 引脚 28 | PWM1H3/RE5 — Motor PWM 1 high output, channel 3 |
| 引脚 29 | FLT1/RE6 — PWM fault input 1 |
| 引脚 30 | PWM1L4/RE7 — Motor PWM 1 low output, channel 4 |
| 引脚 31 | PWM1H4/RF0 — Motor PWM 1 high output, channel 4 |
| 引脚 32 | RF1 — Port F I/O |
| 引脚 33 | C1TX/RF2 — CAN1 transmit output |
| 引脚 34 | C1RX/RF3 — CAN1 receive input |
| 引脚 35 | RF4 — Port F I/O |
| 引脚 36 | RF5 — Port F I/O |
| 引脚 37 | SCL1/RF6 — I2C1 serial clock |
| 引脚 38 | SDA1/RF7 — I2C1 serial data |
| 引脚 39 | RG0/U2TX — UART2 transmit |
| 引脚 40 | RG1/U2RX — UART2 receive |
| 引脚 41 | AN6/RG2 — Analog input 6 / port G I/O |
| 引脚 42 | AN7/RG3 — Analog input 7 / port G I/O |
| 引脚 43 | VDD — Positive supply |
| 引脚 44 | VSS — Ground reference |
| 引脚 45 | AN8/RB8 — Analog input 8 / port B I/O |
| 引脚 46 | AN9/RB9 — Analog input 9 / port B I/O |
| 引脚 47 | AN10/RB10 — Analog input 10 / port B I/O |
| 引脚 48 | AN11/RB11 — Analog input 11 / port B I/O |
| 引脚 49 | VDD — Positive supply |
| 引脚 50 | VSS — Ground reference |
| 引脚 51 | AN12/RB12 — Analog input 12 / port B I/O |
| 引脚 52 | AN13/RB13 — Analog input 13 / port B I/O |
| 引脚 53 | AN14/RB14 — Analog input 14 / port B I/O |
| 引脚 54 | AN15/CVREF/RB15 — Analog input 15 / comparator voltage reference |
| 引脚 55 | AVDD — Analog supply (3.0V-3.6V) |
| 引脚 56 | AVSS — Analog ground |
| 引脚 57 | RD0/OC3 — Output compare 3 / port D I/O |
| 引脚 58 | RD1/OC4 — Output compare 4 / port D I/O |
| 引脚 59 | RD2/IC3 — Input capture 3 / port D I/O |
| 引脚 60 | RD3/IC4 — Input capture 4 / port D I/O |
| 引脚 61 | RD4 — Port D I/O |
| 引脚 62 | RD5/IC2 — Input capture 2 / port D I/O |
| 引脚 63 | RD6/OC2 — Output compare 2 / port D I/O |
| 引脚 64 | EP/VSS — Exposed pad - connect to ground plane (thermal and electrical ground) |
典型应用
DSPIC33FJ64MC706A-E/MR 适用于 6 应用s: Brushless DC (BLDC) Motor Drives, 3-Phase Induction Motor Inverters, Uninterruptible Power Supplies (UPS), Switched Reluctance Motor (SRM) Controllers, Industrial Networked Nodes with CAN, Embedded Motion and Robotics Control.
Brushless DC (BLDC) Motor Drives
The DSPIC33FJ64MC706A-E/MR is purpose-built for BLDC control: its motor-control PWM peripheral generates three complementary output pairs with hardware dead-time insertion, directly driving a 3-phase inverter gate-driver stage. The 40 MIPS core executes sensorless observers or Hall-based commutation with cycle time to spare, while synchronized ADC sampling captures phase currents at PWM centers to avoid switching noise. On-chip CAN 2.0B links the drive into industrial networks without stealing CPU cycles from the control loop. The -40C to +125C E-temperature rating suits sealed drive housings where ambient near the power stage regularly exceeds +85C. The 64-QFN exposed pad provides a low-inductance ground reference that keeps PWM edge ringing out of ADC measurements.
推荐
3-Phase Induction Motor Inverters
For single- and 3-phase induction motor control, the DSC runs V/Hz or field-oriented control algorithms on its DSP-enhanced 16-bit core at 40 MIPS, while dedicated PWM hardware produces the six switching signals with programmable dead time. Synchronized analog-to-digital conversion samples DC-bus voltage and phase currents each PWM cycle for closed-loop flux and torque estimation. The 64 KB flash accommodates a complete control stack including start-up sequencing, protection routines, and a CAN or UART communication task. Extended -40C to +125C operation permits mounting inside inverter cabinets near heatsinks. The QFN exposed pad solders to the PCB ground plane, improving both thermal dissipation under sustained 40 MHz operation and electromagnetic compatibility of high-edge-rate PWM signals.
推荐
Uninterruptible Power Supplies (UPS)
UPS inverters demand precisely phase-shifted PWM generation, fast fault shutdown, and continuous sensing of output voltage and battery current - all tasks the dsPIC33FJ64MC706A architecture addresses. The motor-control PWM module generates sinusoidal carrier-based modulation for the inverter bridge, with hardware dead-time protecting against shoot-through, while ADC channels synchronized to the PWM period sample the output waveform for closed-loop regulation at switching frequency. The 40 MIPS core simultaneously executes protection logic, battery-charging management, and host communication over UART or CAN. Microchip explicitly lists UPS among the target applications of this family, and the extended -40C to +125C range covers equipment installed in unconditioned electrical rooms where summer ambient approaches the upper ratings.
推荐
Switched Reluctance Motor (SRM) Controllers
Switched reluctance drives require asymmetric, independently timed phase excitations - a control pattern the dsPIC33FJ64MC706A supports through its flexible motor-control PWM with per-output override control. The 40 MIPS core handles torque-ripple-minimization algorithms and rotor-position estimation from phase inductance signatures sampled by the synchronized ADC, eliminating discrete position sensors. The DSP multiply-accumulate instructions accelerate the observer mathematics that a standard 16-bit MCU would struggle to close within a 10-20 kHz control period. The -40C to +125C E-grade rating matches the hot, vibration-prone environments (pumps, fans, compressors) where SRM drives excel. The 64-QFN footprint with exposed pad keeps ground impedance low across high di/dt phase-switching events, protecting analog measurement integrity.
推荐
Industrial Networked Nodes with CAN
The integrated CAN 2.0B controller makes the DSPIC33FJ64MC706A-E/MR a complete CAN node on one chip: hardware message framing, acceptance filtering, and multiple transmit/receive buffers operate without core intervention, leaving the 40 MIPS DSP core free for application tasks such as sensor fusion or local closed-loop control. Pairing motor-control PWM with CAN lets one device serve as both a drive controller and a fieldbus slave in conveyors, HVAC blowers, and pumping skids, removing a second communication processor. The UART, SPI, and I2C peripherals connect auxiliary sensors and human-interface hardware. The -40C to +125C extended rating and 64-QFN exposed-pad grounding support deployment in outdoor cabinets and near switching power stages typical of industrial installations.
推荐
Embedded Motion and Robotics Control
Robotics axes need coordinated multi-motor control, encoder feedback processing, and deterministic real-time response - the dsPIC33FJ64MC706A provides the quadrature-encoder interface inputs, motor-control PWM, and 40 MIPS interrupt-driven core to close current and velocity loops on multiple axes from one device. The DSP MAC instructions execute PI/PID and field-orientation mathematics efficiently, while CAN interconnects axes in distributed servo topologies. The 64 KB flash holds per-axis profiles, homing logic, and safety interlocks; designs needing trajectory planning tables can drop in the pin-compatible DSPIC33FJ128MC706A-E/MR without PCB changes. Extended -40C to +125C operation tolerates drive-mounted placement near power electronics, and the QFN thermal pad sustains continuous full-speed operation without external heatsinking in typical ambient conditions.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ64MC706A-E/MR ——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 | DSPIC33FJ128MC706A-E/MR | DSPIC33FJ32MC706A-E/MR | DSPIC33FJ64MC706AT-E/MR | DSPIC33FJ64MC706A-E/PT |
|---|---|---|---|---|---|
| Package | 64-QFN with exposed pad (MR) | 64-QFN (MR) - same | 64-QFN (MR) - same | 64-QFN (MR) - same | 64-TQFP (PT) - different package |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 64 KB | 128 KB | 32 KB | 64 KB | 64 KB |
| Core Performance | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz | 40 MIPS / 40 MHz |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| CAN Controller | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) |
| Container | Tube | Tube | Tube | Tape & Reel | Tube |
| Firmware Compatibility | Reference (dsPIC33FJ MC706A family) | Identical, more flash headroom | Identical, 50% flash limit | Identical (same die) | Identical firmware, different footprint |
关键差异点
- Extended -40C to +125C temperature grade at standard-family cost （对比 DSPIC33FJ64MC506A-I/PT)
- Silicon errata corrections of the legacy part （对比 DSPIC33FJ64MC706 (non-A))
- Exposed-pad QFN improves thermal and EMC performance （对比 DSPIC33FJ64MC706A-E/PT)
- Trade-off: flash size fixed at 64 KB （对比 DSPIC33FJ128MC706A-E/MR)
设计说明
The 64-QFN exposed pad (pin EP) is not optional - it is the primary ground connection and thermal path for the die. Create a solder-mask-defined window in the PCB ground plane with an array of thermal vias (5x5 pattern, 0.3 mm drill) to tie the pad to internal ground layers, and use a stencil with approximately 50-70% pad coverage divided into multiple apertures to prevent solder voiding. All four VDD/VSS pairs plus AVDD/AVSS should each receive a 0.1 uF ceramic decoupling capacitor placed within 2 mm of the pins.
Power the core and I/O from a clean 3.3 V rail rated at least 100 mA for the DSC plus peripheral loads. Because the motor-control PWM edges switch multiple outputs simultaneously at 40 MHz-class rates, add 10 uF bulk capacitance near the QFN in addition to per-pin 0.1 uF ceramics. Keep the analog supply (AVDD, pin 55) isolated with an RC filter (e.g., 10 ohm + 1 uF) from the digital rail when ADC accuracy matters for motor current sampling. Estimated current consumption during full-speed PWM operation is well within a single low-noise LDO budget, but verify against the datasheet electrical characteristics for your clock configuration.
Three recurring pitfalls: (1) Selecting the -I temperature variant to save cost in designs that later get deployed in sealed enclosures - the E suffix (-40C to +125C) costs little more and prevents field failures. (2) Treating the non-A dsPIC33FJ64MC706 as a cheap substitute - the A revision exists specifically to fix legacy errata. (3) Leaving MCLR floating; always fit a 10 kOhm pull-up plus optional 0.1 uF to ground for reliable power-on reset and in-circuit programming with tools like PICkit or ICD. Also confirm the oscillator configuration fuses match your crystal before first programming to avoid lockout.
Route the PWM1L/H output pairs away from AN inputs and the CAN lines. When phase-current sensing uses shunt resistors, sample with the ADC synchronized to the PWM period center (trigger from the PWM module, not software delay) to avoid sampling during switch-node transients. Keep the C1RX/C1CAN traces short and matched to the transceiver, and terminate the CAN bus at both ends with 120 ohm per ISO 11898 topology conventions used in Microchip CAN reference designs.
合规信息
Compliance status was not stated in the verified web data; consult the Microchip product page or environmental datasheet for RoHS/REACH status of the -E/MR suffix.
