DSPIC33CK128MC502-I/2N - 100MHz DSC 128KB Flash UQFN-28 | Microchip
料号： DSPIC33CK128MC502-I/2N ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.85 | $38.50 |
| 100 | $3.42 | $342.00 |
| 500 | $3.1 | $1,550.00 |
| 1,000 | $2.86 | $2,860.00 |
DSPIC33CK128MC502-I/2N 概述
A Digital Signal Controller combines the computational throughput of a digital signal processor (multiply-accumulate instructions, DSP engine, looping hardware) with the deterministic, interrupt-driven behavior of a microcontroller in a single chip. Within the power-management hierarchy of embedded systems, a DSC sits above general-purpose MCUs and below application processors, occupying the niche of real-time control: the dsPIC33 family is the direct descendant of the dsPIC30F/dsPIC33F lines and forms the core of Microchip's dsPIC33C generation, which adds functional-safety features (FuSa) for industrial and automotive-adjacent designs.
Key features include a 100 MHz maximum core frequency executing up to 100 MIPS, high-speed PWM peripherals with 250 ps resolution for digital power conversion, and CAN Flexible Data-Rate (CAN FD) connectivity for modern industrial and automotive networks. The 3.0 V to 3.6 V supply window, 16 KB of on-chip RAM, and the on-chip DSP engine (single-cycle MAC, DSP addressing modes) differentiate this part from classic 16-bit MCUs.
Architecturally, the dsPIC33CK core uses an optimized C compiler-friendly instruction set with hardware looping, bit-reversed addressing, and an integrated DSP multiply-accumulate unit. The device supports ICSP (In-Circuit Serial Programming) and debugging through PGECx/PGEDx pin pairs - any pair may be used, but each clock/data pair must be kept together. The Extended Temperature (-40C to +125C) 'I' grade option supports industrial environments.
Typical applications include brushless DC and PMSM motor control, digital power supplies and PFC stages (exploiting the high-resolution PWM), and CAN FD nodes in industrial automation where the 100 MHz core must execute control loops at switching frequencies of 100 kHz or more.
Design consideration: always decouple the internal core regulator (VCAP pin) and connect PGEC/PGED pairs correctly for programming; the UQFN package also requires attention to thermal pad soldering for reliable grounding.
This page synthesizes distributor availability, drop-in same-family alternatives, application guidance, and design notes not found in the 984-page manufacturer datasheet.
直接替换替代料： DSPIC33CK128MC502-I/2N ——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： DSPIC33CK128MC502-I/2N （相同外形与封装尺寸） ——差异在于 Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
DSPIC33CK128MC502-E/2N
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33CK256MC502-I/2N
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.95 / 个
查看数据手册 →DSPIC33CK64MC502-I/2N
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33CK128MC504-I/2N
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33CK128MC502-I/2N 最大额定值与电气特性
| Core | dsPIC33CK 16-bit DSC |
| 最大时钟频率 | 100 MHz |
| Program Memory Size | 128 KB (128K x 8) FLASH |
| Data Memory (RAM) Size | 16 KB |
| Supply Voltage Range | 3 V to 3.6 V |
| Number of I/O | 21 |
| 封装 | 28-UQFN (6x6 mm) |
| 安装类型 | Surface Mount |
| Connectivity | CAN FD, UART, SPI, I2C |
| Peripherals | High-Speed PWM, ADC, Comparators, OPAMP |
| 工作温度 | -40C to +85C (I grade) |
| Functional Safety Support | Yes (FuSa) |
| Programming Interface | ICSP via PGECx/PGEDx pairs |
| Series | dsPIC33CK128MC50X |
| 数据总线宽度 | 16 bit |
| RoHS 状态 | Compliant |
DSPIC33CK128MC502-I/2N 28-uqfn (6x6 mm) 引脚配置指南
DSPIC33CK128MC502-I/2N（28-uqfn (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： DSPIC33CK128MC502-I/2N.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33CK128MC502-I/2N 适用于 6 应用s: BLDC / PMSM Motor Control, Digital Power Supplies (PFC / LLC), CAN FD Industrial Network Nodes, Sensor Signal Processing and Data Acquisition, Automotive-Adjacent and Functional Safety Designs, General Embedded Control and Robotics.
BLDC / PMSM Motor Control
The DSPIC33CK128MC502-I/2N fits brushless DC and permanent-magnet synchronous motor control because its 100 MHz (100 MIPS) core computes field-oriented control current loops fast enough for PWM switching frequencies of 50-200 kHz, while the high-speed PWM peripheral provides the edge resolution needed for accurate duty-cycle regulation. In this application the DSC reads phase currents through its ADC synchronized to PWM center points, executes Clarke/Park transforms and PI loops using the single-cycle MAC DSP engine, and drives a three-phase inverter through the complementary PWM outputs with programmable dead time. The 128 KB FLASH holds the FOC algorithm, speed ramps, and communication firmware without external memory.
推荐
Digital Power Supplies (PFC / LLC)
For digitally controlled switch-mode power supplies, the DSPIC33CK128MC502-I/2N offers deterministic loop execution at 100 MHz plus PWM peripherals designed for power conversion: high resolution, multiple phases, and cycle-accurate ADC triggering. A boost PFC stage runs its voltage loop at roughly 10 Hz and current loop at 10-50 kHz on this DSC, while LLC or buck stages benefit from PWM frequency and phase adjustment on the fly. The CAN FD interface enables digital telemetry of voltage, current, and temperature to a system host, which is increasingly required in server and telecom power shelves. The 3.3 V rail operation integrates cleanly with standard controller-side logic.
推荐
CAN FD Industrial Network Nodes
The integrated CAN Flexible Data-Rate module makes this DSC a strong fit for industrial network nodes that must also perform local real-time control, such as servo drives, sensor hubs, and machine I/O blocks. CAN FD supports data-phase bit rates up to 8 Mbps and 64-byte payloads, letting the DSPIC33CK128MC502-I/2N ship fast control-loop telemetry while receiving commands with low latency. The 16 KB RAM buffers message queues and DMA transfers so the core stays focused on control math. For a transceiver, pair with a 3.3 V CAN FD transceiver on the CAN Tx/Rx pins; termination and common-mode choke placement follow standard ISO 11898 practices.
推荐
Sensor Signal Processing and Data Acquisition
The DSP engine (single-cycle MAC, dual operand fetch, bit-reversed addressing) gives the DSPIC33CK128MC502-I/2N real digital signal processing capability at MCU cost, making it suitable for vibration monitoring, power metering, and sensor fusion front ends. FFT windows, FIR/IIR filters, and RMS calculations execute in hardware-accelerated cycles that a conventional 16-bit MCU performs several times slower. The on-chip ADC with PWM-synchronized sampling supports coherent sampling of AC signals for power-quality measurement, while the 128 KB FLASH stores calibration tables and DSP coefficient sets. UART/SPI links stream processed results to upstream systems without CPU-heavy bit-banging.
推荐
Automotive-Adjacent and Functional Safety Designs
Microchip positions the dsPIC33CK family with functional-safety (FuSa) support documentation, enabling use in industrial safety and automotive-adjacent subsystems such as pump controllers, actuators, and auxiliary inverter boards. The DSPIC33CK128MC502-I/2N pairs its 100 MHz core with safety-relevant diagnostics - clock monitoring, watchdog, and CRC-capable FLASH - that support designs targeted at safety integrity levels when combined with the Microchip safety manual and external diagnostic strategies. CAN FD connectivity matches the networking trend in zonal electrical architectures. Note this standard-grade part is not itself AEC-Q100 qualified; use the extended-temperature E-grade variant in the same UQFN package for harsher environments.
推荐
General Embedded Control and Robotics
Beyond power and motor applications, the DSPIC33CK128MC502-I/2N serves as a high-performance general embedded controller in robotics, laboratory instruments, and automation modules where its 100 MIPS throughput, 21 I/O pins, and standard connectivity (UART, SPI, I2C, CAN FD) cover most node-level requirements. The DSP engine accelerates encoder interpolation, PID servo loops, and sensor filtering, while 128 KB FLASH accommodates substantial protocol and application firmware. Development uses Microchip MPLAB X IDE, the XC16 compiler, and the Curiosity/debugger toolchain; ICSP programming uses any PGECx/PGEDx pin pair, provided the chosen pair is used consistently for clock and data.
推荐
推荐产品汇总
工程参考数据： DSPIC33CK128MC502-I/2N ——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 | DSPIC33CK128MC502-E/2N | DSPIC33CK256MC502-I/2N | DSPIC33CK64MC502-I/2N |
|---|---|---|---|---|
| Package | 28-UQFN (6x6 mm) | 28-UQFN (6x6 mm) - same | 28-UQFN (6x6 mm) - same | 28-UQFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Frequency | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| FLASH Memory | 128 KB | 128 KB | 256 KB | 64 KB |
| Operating Temperature | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| Number of I/O | 21 | 21 | 21 | 21 |
| CAN FD | Yes | Yes | Yes | Yes |
关键差异点
- Full 128 KB FLASH without PCB change （对比 DSPIC33CK64MC502-I/2N)
- Extended-temperature option in same footprint （对比 DSPIC33CK128MC502-E/2N)
- Memory headroom for growth （对比 DSPIC33CK256MC502-I/2N)
设计说明
For the 28-UQFN (6x6 mm) package, design the PCB land pattern exactly per the Microchip UQFN application note and solder the exposed thermal pad to a ground array of vias - the pad is the primary ground connection and its voiding is a leading cause of intermittent failures. Decouple each VDD pin with a 100 nF ceramic placed within 2 mm, plus a 4.7-10 uF bulk capacitor. Connect the VCAP pin capacitor per datasheet requirements; this stabilizes the internal core regulator and must never be omitted.
The dsPIC33CK128MC502 has multiple PGECx/PGEDx pin pairs for ICSP programming and debugging. As documented in the Microchip programming guide, you may use any pair, but clock and data must come from the SAME pair (e.g., PGEC2 with PGED2) - mixing pairs from different pairs blocks programming. Route your programming header to one complete pair, keep the traces short, and avoid loading those pins with strong pull-downs that interfere with ICSP entry via MCLR.
The device operates from a 3.0 V to 3.6 V supply. In 5 V systems, derive the 3.3 V rail with a low-noise LDO or small buck; ensure the rail is within spec before MCLR release to guarantee a clean reset. ADC accuracy benefits from a quiet, well-filtered VDD - consider an RC or ferrite filter on the analog supply path. Estimated: at 100 MHz with typical activity, DSC core current is on the order of tens of mA; verify against the datasheet current-consumption tables for your exact clock configuration when sizing the regulator.
When using high-speed PWM outputs to drive gate circuitry, keep the PWM traces short and away from analog sense lines feeding the ADC; the fast edges of the high-resolution PWM can couple into current-sense inputs and corrupt control-loop sampling. Use PWM-synchronized ADC triggering (sampling at PWM center or trough) to reject switching noise inherently, and ground analog references as a star from the exposed pad.
合规信息
RoHS compliant per verified distributor listings for this MPN. AEC-Q100 qualification not stated in provided data for this standard-grade part; consult Microchip for automotive-qualified options.
