DSPIC33FJ64MC706T-I/PT - 16-bit DSC, 40 MIPs, 64KB Flash | Microchip
料号： DSPIC33FJ64MC706T-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.55 | $65.50 |
| 100 | $5.9 | $590.00 |
| 500 | $5.4 | $2,700.00 |
| 1,000 | $4.95 | $4,950.00 |
DSPIC33FJ64MC706T-I/PT 概述
A digital signal controller combines the deterministic control flow of a microcontroller with the multiply-accumulate (MAC) hardware of a DSP core. In the power-management hierarchy, the dsPIC33F family sits between general-purpose 16-bit MCUs (such as the PIC24) and standalone DSPs, offering a single-chip solution for control loops that must execute fast math while managing peripherals, communication, and I/O.
Key features include the 16-bit dsPIC33F core with DSP engine (40-bit accumulators, dual 16-bit working registers), 64KB Flash and 8KB SRAM, an internal fast RC oscillator with PLL allowing 40 MIPS operation without an external crystal, and industrial temperature coverage (-40C to +85C). The supply range is 3.0V to 3.6V (3.3V nominal), and the part is lead-free and RoHS-compliant per distributor listings.
The MC706 variant of the dsPIC33FJ64MC family is optimized for motor control and digital power, integrating peripherals such as PWM modules, high-speed ADCs, and communication interfaces (UART, SPI, I2C, ECAN per family datasheet) that allow field-oriented control (FOC) and digital power loops to be executed at 40 MIPS with headroom.
Typical applications include three-phase motor drives (BLDC, PMSM, ACIM), switch-mode power supplies and digital power conversion, power inverters and UPS systems, and sensor signal processing in industrial automation. The 69 available I/O on the 64-TQFP gives enough parallel interface capability for displays, keyboards, and companion ICs.
Design consideration: the 3.0V to 3.6V supply window means this DSC is not 5V tolerant across all pins by default - verify per-pin tolerances in the manufacturer datasheet and add proper decoupling (multiple 0.1uF ceramics plus bulk capacitance) at each VDD/VSS pair.
This page synthesizes distributor pricing, drop-in alternatives, application guidance, and engineering design notes not found in the standard manufacturer datasheet, as of 2026-09-27.
直接替换替代料： DSPIC33FJ64MC706T-I/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： DSPIC33FJ64MC706T-I/PT （相同外形与封装尺寸） ——差异在于 Package, Core Architecture, Operating Temperature, RoHS Status, Supply Voltage.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ64MC706AT-I/PT
✅ 直接替换✓ 有现货
$5.85 / 个
查看数据手册 →DSPIC33FJ64MC506A-I/PT
✅ 直接替换✓ 有现货
$7.58 / 个
查看数据手册 →DSPIC33FJ64MC506-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.3 / 个
查看数据手册 →DSPIC33FJ64GP706T-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ128MC706T-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$7.62 / 个
查看数据手册 →DSPIC33FJ64MC706T-I/PT 最大额定值与电气特性
| Core Architecture | 16-bit dsPIC33F with DSP engine |
| Performance | 40 MIPs |
| Clock Speed | 40 MHz |
| Program Memory | 64KB (64K x 8) Flash |
| 电源电压 | 3.0 V to 3.6 V |
| I/O Ports | 69 I/O |
| 工作温度 | -40C to +85C |
| 封装 | 64-TQFP (10x10 mm), 1 mm height |
| 安装类型 | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Product Family | dsPIC33F Motor Control (MC) series |
| Life Cycle Stage | Active |
| ROM Type | Flash |
| Migration Path | Seamless migration to PIC24 MCUs and dsPIC30F DSCs in similar packages |
| Lead Free | Yes (lead-free plastic TQFP) |
| RoHS 状态 | ROHS3 Compliant |
DSPIC33FJ64MC706T-I/PT 64-tqfp (10x10 mm), 1 mm height 引脚配置指南
DSPIC33FJ64MC706T-I/PT（64-tqfp (10x10 mm), 1 mm height 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： DSPIC33FJ64MC706T-I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33FJ64MC706T-I/PT 适用于 6 应用s: BLDC and PMSM Motor Drives, Digital Power Conversion (SMPS, PFC, Inverters), Industrial Automation and Sensor Signal Processing, Power Inverters and UPS Systems, Automotive-adjacent and Industrial Motor Subsystems, Audio and Signal Conditioning Front Ends.
BLDC and PMSM Motor Drives
The DSPIC33FJ64MC706T-I/PT fits brushless DC and permanent-magnet synchronous motor control because its 40 MIPs DSP core executes field-oriented control loops - Clarke/Park transforms, PI current regulators, and space-vector PWM updates - well inside a 10-20 kHz PWM carrier period. The 64KB Flash accommodates FOC firmware, position estimation, and communication stacks without external memory, and the 69 I/O support gate drivers, encoders, and Hall sensors directly. In a typical topology, the DSC generates complementary PWM pairs with dead-time to a three-phase inverter bridge while a fast ADC samples phase currents at carrier frequency. Running control at 40 MIPs leaves margin for sensorless observers, and single-chip integration eliminates a separate DSP, reducing BOM cost and board area.
推荐
Digital Power Conversion (SMPS, PFC, Inverters)
In switch-mode power supplies, PFC stages, and DC-AC inverters, the DSPIC33FJ64MC706T-I/PT closes digital control loops with its DSP engine: voltage and current loops are computed at 40 MIPs with single-cycle multiply-accumulate, supporting switching frequencies of hundreds of kHz. The MC subfamily PWM modules generate phase-shifted or complementary outputs with programmable dead time, while the ADC synchronizes sampling to the PWM period to reject switching ripple. The 64-TQFP 10x10 mm footprint and 3.0V to 3.6V supply integrate cleanly into power boards with isolated gate-drive circuitry. A quantified benefit: firmware-based control permits nonlinear or adaptive compensation (e.g., gain scheduling) that analog controllers cannot implement, improving hold-up and transient response without changing hardware.
推荐
Industrial Automation and Sensor Signal Processing
Factory equipment that must condition and process analog signals - vibration monitors, load cells, ultrasonic sensors - benefits from the DSC's combination of ADC sampling and DSP filtering on one chip. The DSPIC33FJ64MC706T-I/PT performs FIR/IIR filtering, FFT analysis, and threshold detection at 40 MIPs while its UART, SPI, I2C, and CAN-class communication peripherals upload results to PLCs or SCADA systems. The industrial -40C to +85C rating and 3.0V to 3.6V operation match standard panel and cabinet environments. With 69 I/O on the 64-TQFP, one chip can drive indicators, read keypads, and multiplex several analog channels, consolidating what would otherwise require an MCU plus an external DSP or filter IC, lowering both cost and firmware complexity.
推荐
Power Inverters and UPS Systems
Uninterruptible power supplies and solar/battery inverters need simultaneous tasks: sinusoidal PWM generation, battery-charge management, grid synchronization (zero-cross detection, PLL), and fault protection. The 40 MIPs dsPIC33FJ64MC706T-I/PT runs these loops concurrently, with its DSP engine handling the sine lookup and PI computation for the output stage. The 64-TQFP package provides enough I/O for relay drivers, fan control, front-panel interfacing, and multiple ADC channels for voltage/current/temp sensing. Because the part is flash-based and in-system programmable, field firmware updates for grid-code changes are possible without replacing hardware. Designers typically add fast external comparators for hardware overcurrent protection, keeping the DSC in supervisor rather than critical-safety role.
推荐
Automotive-adjacent and Industrial Motor Subsystems
While this industrial-temperature (-40C to +85C) part is not an AEC-Q100 automotive-qualified device, it is widely used in off-road, agricultural, and industrial vehicle subsystems - pump drives, fan controllers, seat and lift actuators - where extended temperature but not full automotive qualification is required. Its motor-control PWM and fast ADC close torque and speed loops at 40 MIPs, and communication peripherals link to vehicle body controllers. The 64KB Flash holds FOC plus diagnostics, and the flash endurance supports logged fault data. Designs needing AEC-Q100 should migrate to the dsPIC33F automotive variants, but within industrial vehicle specifications the MC706 offers a proven, widely stocked single-chip solution with a long migration path documented by Microchip.
推荐
Audio and Signal Conditioning Front Ends
The DSP engine of the DSPIC33FJ64MC706T-I/PT - 40 MIPs, single-cycle MAC, 40-bit accumulators - suits moderate-rate audio processing such as active crossover filtering, equalization, and microphone preamplifier control in industrial and pro-audio equipment. The ADC can sample audio-band channels while firmware implements biquad filters without floating-point hardware, since 16-bit fixed-point arithmetic is native to the architecture. The 3.0V to 3.6V rail and abundant I/O allow direct interfacing with potentiometers, encoders, and display modules on the 64-TQFP. For products that later need richer codecs or higher sample rates, the dsPIC33F family's seamless migration path to PIC24 MCUs and larger dsPIC33 devices in similar packages lets the same board platform scale without a ground-up redesign.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ64MC706T-I/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 | DSPIC33FJ64MC706AT-I/PT | DSPIC33FJ64MC506A-I/PT | DSPIC33FJ64GP706T-I/PT | DSPIC33FJ128MC706T-I/PT |
|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Performance | 16-bit dsPIC33F, 40 MIPs | 16-bit dsPIC33F, 40 MIPs | 16-bit dsPIC33F, 40 MIPs | 16-bit dsPIC33F, 40 MIPs | 16-bit dsPIC33F, 40 MIPs |
| Flash Program Memory | 64KB (64K x 8) | 64KB | 64KB | 64KB | 128KB |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Peripheral Focus | Motor control (PWM + fast ADC) | Motor control (PWM + fast ADC) | Motor control, reduced pin/peripheral count | General purpose / communication | Motor control (PWM + fast ADC) |
关键差异点
- Motor-control peripheral focus with DSP math （对比 DSPIC33FJ64GP706T-I/PT)
- Lowest-risk new-design choice within the footprint （对比 DSPIC33FJ64MC706AT-I/PT)
- Cost-efficient 64KB memory point （对比 DSPIC33FJ128MC706T-I/PT)
设计说明
Supply the DSPIC33FJ64MC706T-I/PT from a clean 3.0V to 3.6V rail. Place a 0.1uF ceramic capacitor at every VDD/VSS pin pair (the 64-TQFP has multiple power pairs) plus 4.7uF to 10uF of bulk capacitance near the device. If the board is powered from 5V, use an LDO or buck converter rated at least 150 mA for core and I/O current. Keep the analog supply path separate from noisy gate-driver or relay supplies; a small ferrite bead plus local decoupling on AVDD improves ADC accuracy noticeably in motor-drive layouts.
The 10x10 mm 64-TQFP needs no thermal pad but benefits from solid ground plane connections at each VSS. Route PWM outputs to gate drivers with matched lengths per phase pair to minimize dead-time asymmetry, and keep ADC sense traces away from PWM switching nodes. Use the internal FRC oscillator with PLL to reach 40 MIPs without a crystal in cost-sensitive designs, but add an external primary oscillator with appropriate load capacitors when CAN or UART timing accuracy demands better frequency tolerance than the internal RC provides.
The part is 3.3V-only - applying 5V to VDD destroys the device, and 5V-tolerant status of individual pins must be verified in the manufacturer datasheet before interfacing to legacy 5V logic. Also, dsPIC33F pins are heavily multiplexed: configure the pin function registers explicitly at startup, otherwise default analog functions can leave digital inputs floating. When migrating firmware from the original MC706 to the MC706AT A-step variant, review the revision errata sheet because timing-related fixes can affect tight loop assumptions.
合规信息
ROHS3 Compliant per distributor listing (ics-embedded); package described as lead-free plastic TQFP (digchip specifications). REACH, halogen-free, and conflict-minerals status not stated in provided data.
