DSPIC33FJ64MC802-I/MM - 16-bit DSC 40MIPS 64KB Flash | Microchip
料号： DSPIC33FJ64MC802-I/MM ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.61 | $5.61 |
| 10 | $5.2 | $52.00 |
| 100 | $4.85 | $485.00 |
| 500 | $4.55 | $2,275.00 |
| 1,000 | $4.25 | $4,250.00 |
DSPIC33FJ64MC802-I/MM 概述
A digital signal controller combines the computational throughput of a digital signal processor with the peripheral integration and interrupt-driven determinism of a microcontroller. In the power-management hierarchy of embedded systems, the DSC sits above general-purpose MCUs where motor control, digital power conversion, and sensor-processing loops demand multiply-accumulate performance per clock cycle.
Key features include the dsPIC33F 16-bit modified Harvard architecture with DSP instruction support (MAC, DSP multiply), 40 MIPS maximum execution speed, 64 KB self-programming Flash, and eight DMA channels that move data without CPU intervention. Advanced analog peripherals and motor-control PWM outputs target precision control applications directly.
The architecture is pin compatible with the PIC24HJ family and shares a high degree of compatibility with dsPIC30F and dsPIC33F devices, allowing seamless migration between 16-bit Microchip platforms. The CMOS core operates from a 3 V to 3.6 V supply, and the industrial temperature grade (suffix I) covers -40C to +85C. In-circuit serial programming and debug are supported by standard Microchip tools, including PICKIT and ICD programmers, as well as SEGGER tooling.
Typical applications include brushless DC and permanent-magnet motor control, digital power supplies (PFC, LLC), and sensor signal processing in industrial automation.
Design consideration: keep the oscillator circuit within 12 mm of the device clock pins with load capacitors adjacent to the crystal, as recommended in the Microchip datasheet, to preserve start-up margin.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
直接替换替代料： DSPIC33FJ64MC802-I/MM ——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： DSPIC33FJ64MC802-I/MM （相同外形与封装尺寸） ——差异在于 Core Architecture, Package, Operating Temperature, Mounting Type, RoHS Status.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ32MC802-I/MM
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC24HJ64GP502-I/MM
✅ 直接替换📋 参考替代料（不在目录中）
PIC24HJ32GP202-I/MM
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ16MC304-I/ML
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ64MC802-I/MM 最大额定值与电气特性
| Core Architecture | 16-bit dsPIC33F modified Harvard, CMOS |
| Maximum Clock Speed | 40 MHz |
| Maximum Performance | 40 MIPS |
| Program Memory Type | Flash |
| Program Memory Size | 64 KB |
| DMA Channels | 8 |
| Supply Voltage Range | 3 V to 3.6 V |
| 工作温度 | -40C to +85C (industrial, suffix I) |
| 封装 | 28-QFN-S (6x6 mm) |
| 安装类型 | Surface Mount |
| Family Compatibility | Pin compatible with PIC24HJ family |
| Family | dsPIC33F 16-bit Digital Signal Controllers |
| Programming / Debug | In-Circuit Serial Programming (ICSP), SEGGER supported |
| RoHS 状态 | Compliant (lead-free package per datasheet packaging description) |
| Life Cycle Stage | Active |
DSPIC33FJ64MC802-I/MM 28-qfn-s (6x6 mm) 引脚配置指南
DSPIC33FJ64MC802-I/MM（28-qfn-s (6x6 mm) 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： DSPIC33FJ64MC802-I/MM.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33FJ64MC802-I/MM 适用于 6 应用s: Brushless DC / PMSM Motor Control, Digital Power Conversion (PFC / LLC), Industrial Automation and Control Nodes, Sensor Signal Processing, Portable and Compact Embedded Devices, Audio and Signal-Chain Processing.
Brushless DC / PMSM Motor Control
The DSPIC33FJ64MC802-I/MM is purpose-built for precision motor control: its 40 MIPS DSP core executes field-oriented control (FOC) loops fast enough for commutation intervals in the low kHz range, while the dedicated motor-control PWM peripheral generates complementary output pairs with hardware dead-time insertion. The 8 DMA channels stream ADC current-sense samples into RAM without CPU intervention, keeping loop latency deterministic. In a typical sensorless BLDC drive, the DSC runs the current loop at 20-40 kHz and the speed loop at 1 kHz, with the 64 KB Flash holding the control library plus field-update code. Supply operation at 3-3.6 V and the -40C to +85C industrial rating cover fans, pumps, and industrial servo drives.
推荐
Digital Power Conversion (PFC / LLC)
Digital power supplies require deterministic control loops with low sample-to-output latency, and the DSPIC33FJ64MC802-I/MM fits this role directly. The 40 MHz / 40 MIPS core performs proportional-integral computations for PFC current shaping at switching frequencies up to several hundred kHz, while hardware PWM supports complementary outputs and dead-time control for half-bridge and LLC stages. DMA-offloaded ADC sampling keeps the control loop jitter-free, which directly reduces output ripple. The 64 KB Flash accommodates multiple operating modes (burst, phase-shift, protection states) plus firmware update headroom. Combined with a 3.3 V rail and industrial temperature rating, the device suits server power supplies, telecom rectifiers, and LED drivers.
推荐
Industrial Automation and Control Nodes
In factory automation, control nodes must combine repetitive computation, deterministic interrupt response, and robust analog interfacing. The DSPIC33FJ64MC802-I/MM delivers 40 MIPS for control mathematics, multiplexed analog inputs for sensor acquisition, and DMA channels that buffer data streams without CPU load. Its 3-3.6 V operation integrates cleanly with standard 3.3 V logic and industrial sensor front ends, while the -40C to +85C grade tolerates unconditioned cabinets and outdoor enclosures. The 64 KB self-programming Flash enables remote firmware updates over fieldbuses without device replacement. Typical deployments include motor sub-drives, actuator controllers, pump protection units, and general-purpose embedded controllers where DSP-grade math performance exceeds what a general-purpose MCU offers.
推荐
Sensor Signal Processing
Sensor front ends benefit from the DSP capabilities of the DSPIC33FJ64MC802-I/MM: hardware multiply-accumulate instructions accelerate digital filtering (FIR/IIR) of noisy signals from accelerometers, pressure sensors, and current transducers at sample rates where general-purpose MCUs stall. The 40 MIPS throughput supports sample rates into the hundreds of kHz, and 8 DMA channels move ADC results to memory buffers without interrupt overhead. On-chip analog peripherals reduce external component count in compact 6x6 mm designs. The industrial temperature rating and 3.3 V supply match typical industrial sensor modules, and pin compatibility with the PIC24HJ family lets designers switch between DSC and MCU processing models without a PCB respin.
推荐
Portable and Compact Embedded Devices
The 6x6 mm 28-QFN package makes the DSPIC33FJ64MC802-I/MM attractive for space-constrained embedded products that still need DSP-class computation: handheld instruments, compact drives, battery-management boards, and embedded controllers where a 40 MHz core and 64 KB Flash fit within a small PCB area. The QFN land pattern minimizes board space and provides a short thermal path to the ground plane, and the 3-3.6 V single-rail supply simplifies power design in portable systems. In-circuit serial programming through standard Microchip tools supports final-assembly programming on production lines, and the family's migration compatibility with dsPIC30F and PIC24 devices protects software investment across product generations.
推荐
Audio and Signal-Chain Processing
The DSP multiply-accumulate capability of the DSPIC33FJ64MC802-I/MM supports embedded audio tasks such as active filtering, gain staging, tone control, and simple effects processing. At 40 MIPS, the core handles single-channel audio algorithms at 44.1-48 kHz sample rates with adequate cycles for multiple biquad filter sections. The DMA channels maintain glitch-free sample streaming between the ADC and processing buffers, and the deterministic interrupt architecture avoids the scheduling jitter that plagues soft-real-time implementations. The compact 28-QFN package suits embedded audio products, and the industrial temperature range supports both consumer and commercial-audio installations. For heavy multi-channel DSP workloads, the higher-pin family members provide more peripherals at the same core speed.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ64MC802-I/MM ——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 | DSPIC33FJ32MC802-I/MM | PIC24HJ64GP502-I/MM | PIC24HJ32GP202-I/MM | DSPIC33FJ16MC304-I/ML |
|---|---|---|---|---|---|
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN (ML) - same pin count/family |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 64 KB | 32 KB | 64 KB | 32 KB | 16 KB |
| Performance | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MIPS class | 40 MIPS class | 40 MIPS class |
| Core Type | dsPIC33F DSC (DSP instructions) | dsPIC33F DSC - same | PIC24HJ MCU (pin compatible, no DSP instruction set) | PIC24HJ MCU | dsPIC33F DSC - same family |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
关键差异点
- Maximum Flash in the 28-pin MC family tier （对比 DSPIC33FJ32MC802-I/MM)
- Hardware DSP instruction set （对比 PIC24HJ64GP502-I/MM)
- Memory capacity vs simplest family member （对比 DSPIC33FJ16MC304-I/ML)
设计说明
Oscillator layout is explicitly addressed in the Microchip datasheet (document 70291G): place the oscillator circuit on the same side of the board as the device, keep it within one-half inch (12 mm) of the respective oscillator pins, and position the load capacitors next to the crystal itself. Violating this placement guidance risks slow or failed start-up, especially at 40 MHz operation. For the 28-QFN package, use the recommended Microchip land pattern and connect the exposed thermal pad to a solid ground plane with an array of vias for both thermal and return-path performance.
The device operates from a 3 V to 3.6 V rail. Provide a well-regulated 3.3 V supply and place 100 nF ceramic decoupling capacitors at each VDD pin, as close to the package as possible, with one bulk capacitor (4.7-10 uF) per power domain. Separate analog and digital supply filtering (ferrite bead or RC) improves ADC accuracy in motor-control and digital-power applications where PWM switching noise couples into measurements. Ensure the 3.3 V regulator can handle inrush during Flash programming and account for the MCLR pin pull-up requirement for reliable ICSP programming.
Two frequent integration mistakes: first, the MM (QFN) package places VDD/VSS pairs internally - skipping any decoupling pair causes intermittent resets under PWM load steps. Second, engineers migrating from PIC18 5 V parts assume 5 V tolerance; the dsPIC33F family operates only at 3-3.6 V, so 5 V signals require level shifting or resistor dividers. Also verify peripheral pin assignments when substituting PIC24HJ-family pin-compatible parts, since shared-pin function mapping can differ between product lines even though the physical footprint is identical.
合规信息
Package described as lead-free plastic in distributor specification data; standard Microchip RoHS compliance applies to the -I/MM suffix. Full REACH and halogen-free status should be confirmed from Microchip's official environmental documentation.
