DSPIC33CK256MP208-I/PT - 100MHz 16-bit DSC 256KB | Microchip
料号： DSPIC33CK256MP208-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.6 | $2.60 |
| 10 | $2.45 | $24.50 |
| 100 | $2.3 | $230.00 |
| 500 | $2.15 | $1,075.00 |
| 1,000 | $2 | $2,000.00 |
DSPIC33CK256MP208-I/PT 概述
A digital signal controller combines the computational power of a DSP with the peripheral integration and deterministic interrupt behavior of a microcontroller. Within the power management hierarchy, DSCs sit at the top of the microcontroller family, providing hardware multiply-accumulate (DSP engine), high-resolution PWM, and fast ADCs - capabilities that conventional MCUs typically lack for closed-loop power conversion and motor commutation.
Key features include the modified Harvard architecture 16-bit dsPIC33CK core running DC to 100 MIPS, three on-chip operational amplifiers, three analog comparators, and a Peripheral Trigger Generator (PTG). Flash ECC plus dual-partition Live Update enables fail-safe field firmware upgrades, and functional-safety (FuSa) support simplifies certification-driven designs.
Architecturally, the single-core CK family emphasizes per-cycle deterministic execution and low interrupt latency, while the companion CH family adds an independent second core. The integrated op-amps amplify shunt-resistor current-sense signals before the internal ADCs, saving external analog components in three-phase inverter designs.
Typical applications are digital power supplies (PFC, LLC, totem-pole converters), precision motor control of BLDC, PMSM, ACIM and SR machines, advanced sensing, and CAN FD networked nodes using the on-chip CAN Flexible Data module. High-resolution PWM enables sub-nanosecond duty-cycle resolution for high-frequency power stages.
Design consideration: operate the device at 3.3V nominal within the 3.0V to 3.6V window, and use the ADC/OPA reference design guidance from the dsPIC33CK family reference manuals for current-loop stability.
This page synthesizes distributor pricing, same-package drop-in alternatives, design notes, and FAQ content not found in the manufacturer datasheet.
直接替换替代料： DSPIC33CK256MP208-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： DSPIC33CK256MP208-I/PT （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Architecture, Core, Program Memory (Flash).
快速对比工具——选择替代料号进行并排对比：
DSPIC33CK256MP208-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33CH256MP208-I/PT
✅ 直接替换✓ 有现货
$5.95 / 个
查看数据手册 →DSPIC33CH512MP208-I/PT
✅ 直接替换✓ 有现货
$8.55 / 个
查看数据手册 →DSPIC33CK128MP208-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.58 / 个
查看数据手册 →DSPIC33CK256MP208-I/PT 最大额定值与电气特性
| Core | 16-bit dsPIC33CK DSC core |
| CPU Speed | 100 MIPS (DC to 100 MIPS) |
| Program Memory (Flash) | 256 KB (256K x 8) with ECC and Live Update (dual-partition) |
| Data SRAM | 24 KB with MBIST |
| Operating Voltage | 3.0 V to 3.6 V |
| 工作温度 | -40C to +85C (I grade per datasheet; -E grade up to +125C) |
| 封装 | 80-TQFP (12x12 mm) |
| 安装类型 | Surface Mount |
| On-chip Op-Amps | 3 |
| Analog Comparators | 3 |
| Peripheral Trigger Generator (PTG) | Yes |
| CAN Module | CAN Flexible Data (CAN FD) |
| PWM | High-Resolution PWM |
| Architecture | Modified Harvard, single core |
| Functional Safety | FuSa variant support |
| Max Clock Frequency | 100 MHz |
| 数据总线宽度 | 16 bit |
DSPIC33CK256MP208-I/PT 80-tqfp (12x12 mm) 引脚配置指南
DSPIC33CK256MP208-I/PT（80-tqfp (12x12 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： DSPIC33CK256MP208-I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33CK256MP208-I/PT 适用于 6 应用s: Digital Power Conversion, Precision Motor Control (BLDC/PMSM/ACIM/SR), CAN FD Networked Industrial Nodes, Advanced Sensing and Control Systems, Automotive-Adjacent and High-Temperature Systems, Embedded Control with Live Field Updates.
Digital Power Conversion
The DSPIC33CK256MP208-I/PT targets digital power supplies including PFC, LLC, and totem-pole bridgeless topologies. Its 100 MIPS core executes control loops with deterministic latency, while the high-resolution PWM provides fine duty-cycle granularity required for converters switching at hundreds of kilohertz. Three on-chip op-amps amplify shunt current-sense signals before the internal ADC, and three comparators offer hardware over-current shutdown paths independent of software, protecting power stages within microseconds. In a typical design, the controller closes voltage and current loops at 100 kHz-plus bandwidth, computes control with the DSP engine's multiply-accumulate instructions, and sequences power-up over the CAN FD bus. Unlike general-purpose MCUs, the dsPIC33CK's PWM resolution and ADC trigger synchronization remove the jitter and quantization limits that cap achievable efficiency in digitally controlled converters.
推荐
Precision Motor Control (BLDC/PMSM/ACIM/SR)
According to Microchip, the dsPIC33CK family enables high-performance precision motor control systems that are more energy efficient, quieter, and extend motor life, controlling BLDC, PMSM, ACIM, and switched-reluctance machines. The MP208 runs field-oriented control (FOC) on its 100 MIPS core with DSP MAC instructions executing the Park/Clarke transforms each PWM cycle. Three integrated op-amps condition low-side shunt currents directly into the ADCs, eliminating external amplifier ICs, and the high-resolution PWM with adjustable dead-time insertion drives three-phase inverter bridges cleanly. The CAN FD module links the drive to industrial networks. In a typical PMSM servo implementation, the current loop closes at 20-50 kHz, the speed loop at 1-5 kHz, and hardware comparator-based over-current protection trips in under a microsecond, delivering smooth low-speed torque and efficient wide-speed operation.
推荐
CAN FD Networked Industrial Nodes
The integrated CAN Flexible Data (CAN FD) module makes the DSPIC33CK256MP208-I/PT a strong fit for industrial and mobile nodes that must exchange larger payloads at higher bit rates than classical CAN allows, such as drive parameter streaming, sensor fusion, and firmware distribution. The dual-partition Flash with ECC and Live Update lets the node install new firmware over the CAN FD network while continuing to run from the alternate partition, falling back safely if an update fails - a critical feature for deployed equipment. The Peripheral Trigger Generator (PTG) offloads deterministic ADC/PWM sequencing from the CPU, keeping interrupt latency low while communication stacks run. Combined with 24 KB SRAM for buffering and the 100 MIPS core for protocol handling, a single MP208 can serve as both the control processor and the network gateway in compact industrial endpoints.
推荐
Advanced Sensing and Control Systems
The DSPIC33CK256MP208-I/PT suits advanced sensing systems that combine analog signal conditioning with real-time decision logic. The three on-chip operational amplifiers can be allocated to bridge sensor amplification (pressure, load cell) and current sensing, feeding the high-speed ADCs synchronously with PWM or PTG triggers for coherent sampling. The 100 MIPS core applies DSP filtering - FIR/IIR via the DSP engine - to raw samples, implementing analytics such as vibration signature detection or impedance measurement in real time. Functional-safety (FuSa) support on the CK family aids designs targeting safety-critical monitoring, and 256 KB ECC Flash accommodates large calibration tables and compensation curves. Designs benefit from reduced external analog component count and deterministic sample timing that asynchronous MCU+external-ADC architectures struggle to achieve.
推荐
Automotive-Adjacent and High-Temperature Systems
For applications exposed to elevated ambient temperatures - underhood accessories, industrial drives near heat sources, high-power supplies - the same-die DSPIC33CK256MP208-E/PT variant provides the extended temperature grade on the identical 80-TQFP footprint, allowing one PCB design to serve standard and harsh environments by BOM substitution. The ECC-protected Flash maintains data integrity at temperature, MBIST supports periodic SRAM self-test in monitored systems, and CAN FD matches automotive-adjacent network requirements. A practical pattern is to qualify the board with the -E/PT part and populate the lower-cost -I/PT where thermal margins allow, or vice versa for field upgrades. The 3.0V-3.6V supply window integrates with standard 3.3V rails derived from wide-input buck regulators common in vehicle and industrial power trees.
推荐
Embedded Control with Live Field Updates
Products requiring fail-safe remote firmware updates benefit directly from the MP208's dual-partition Flash with ECC and Live Update. The controller executes application code from one partition while the bootloader writes the new image into the other, over CAN FD, UART, or USB-class links; CRC/ECC checks validate the image before switching the boot pointer, and any failure leaves the previous firmware runnable - no bricked units in the field. The 256 KB Flash supports keeping a golden image plus one application image in larger products. This architecture is standard practice for industrial drives, networked power supplies, and telemetry nodes where service visits are costly. The 100 MIPS core keeps bootloader transfer times short, and the PTG can maintain PWM-safe states during the update window so connected power stages remain controlled.
推荐
推荐产品汇总
工程参考数据： DSPIC33CK256MP208-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 | DSPIC33CK256MP208-E/PT | DSPIC33CH256MP208-I/PT | DSPIC33CH512MP208-I/PT | DSPIC33CK128MP208-I/PT | DSPIC33CK256MP205-I/PT |
|---|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 64-pin TQFP - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 100 MIPS | 100 MIPS | 100 MIPS (2x core) | 100 MIPS (2x core) | 100 MIPS | 100 MIPS |
| Program Flash | 256 KB | 256 KB | 256 KB | 512 KB | 128 KB | 256 KB |
| SRAM | 24 KB | 24 KB | 24 KB | 48 KB (dual-core) | 24 KB | 24 KB |
| Core Count | 1 | 1 | 2 | 2 | 1 | 1 |
| Temperature Grade | -40C to +85C (I) | Extended (E), up to +125C | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
关键差异点
- Single-core cost efficiency （对比 DSPIC33CH256MP208-I/PT)
- Extended temperature drop-in option （对比 DSPIC33CK256MP208-E/PT)
- Full memory headroom （对比 DSPIC33CK128MP208-I/PT)
设计说明
The dsPIC33CK256MP208 requires a single 3.0V-3.6V supply. Decouple each VDD/VDDCORE pair per the family hardware design guidelines: 0.1uF ceramic per pin plus bulk 4.7-10uF, with the separate VDDCORE rail decoupled exactly as shown in the datasheet reference schematic - incorrect VDDCORE decoupling is the most common bring-up failure on dsPIC33CK boards. Follow Microchip's family reference manual layout diagrams for AVDD/AVSS filtering to protect ADC accuracy.
On the 80-TQFP 12x12 mm footprint, place the current-sense op-amp shunt connections as short Kelvin-routed traces directly to the OPA input pins; the analog front end's accuracy depends on clean routing to AVSS. Keep the high-resolution PWM outputs (PGx) as matched-length groups to the gate drivers and isolate them from the analog section with a ground moat to prevent switching noise coupling into ADC measurements.
Many digital pins are multiplexed via Peripheral Pin Select (PPS); fixed-function pins such as MCLR, oscillator, and analog inputs are not remappable - verify the pin map against the datasheet before locking the schematic. When using dual-partition Live Update, remember Flash erase/write voltages and partition sizes differ from unpartitioned mode; the boot partition mapping must be configured correctly or the device will not start.
合规信息
Compliance data was not present in the provided Verified Web Data. Microchip product page should be consulted for current RoHS/REACH status.