DSPIC33CK256MC502-I/2N - 16-bit 100MIPS DSC, CAN FD | Microchip
MPN： DSPIC33CK256MC502-I/2N ✓ 啟用中DSPIC33CK256MC502-I/2N 概覽
A Digital Signal Controller combines the compute throughput of a digital signal processor with the peripheral integration and control peripherals of a microcontroller. Within the power-management hierarchy, the dsPIC33CK sits between a general-purpose MCU and a dedicated DSP, offering single-cycle MAC/DSP instructions, high-resolution PWM, and fast analog-to-digital conversion on one chip, making it a power management and motor control system-on-chip for embedded control applications.
Key differentiating features include the 100 MIPS core with DSP-enhanced instruction set, on-chip operational amplifiers, a 12-bit high-speed ADC, and a CAN FD interface for automotive and industrial networking. The high-speed PWM peripherals support complementary outputs, dead-time insertion, and advanced motor-control topologies such as field-oriented control (FOC).
The dsPIC33CK256MC50X family architecture integrates DMA for efficient data movement, multiple communication interfaces (UART, SPI, I2C), and Functional Safety (FuSa) support per the DigiKey listing, enabling certified designs. The 12-bit ADC can be synchronized to the PWM for current sampling in digital power and motor-drive loops.
Typical applications include brushless DC and PMSM motor control, digital switching power supplies (AC/DC, DC/DC), CAN FD networked industrial nodes, and high-performance general-purpose embedded control. The combination of op-amps, ADC, and PWM allows complete analog signal chains to be implemented on-chip, reducing BOM count.
Design consideration: the 28-pin UQFN package demands careful decoupling placement; use multiple VDD/VSS pairs with 100 nF ceramics close to each supply pin, and plan the ICSP programming pair (PGECx/PGEDx) on the PCB for in-circuit debugging with MPLAB SNAP or ICD tools.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 DSPIC33CK256MC502-I/2N — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： DSPIC33CK256MC502-I/2N （相同外形與佔位） — 差異在於 Core, Operating Temperature, CAN Interface.
DSPIC33CK256MC502-E/2N
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33CK128MC502-I/2N
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33CK128MP202-I/2N
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33CK256MC502-I/2N 最大額定值與電氣特性
| Core | dsPIC33CK 16-bit DSC |
| Core Speed | 100 MHz (100 MIPS) |
| Flash Program Memory | 256 KB (256K x 8) |
| RAM | 32 KB |
| ADC Resolution | 12-bit |
| CAN Interface | CAN FD |
| On-chip Op-Amps | Yes |
| PWM | High-Speed PWM |
| DMA Channels | 4 |
| 供應電壓 | 3.0 V to 3.6 V |
| 工作溫度 | -40C to +85C |
| 封裝 | 28-UQFN (6x6 mm) |
| 安裝類型 | Surface Mount |
| Programming | ICSP (In-Circuit Serial Programming) |
| Functional Safety Support | Yes (FuSa) |
DSPIC33CK256MC502-I/2N 28-uqfn (6x6 mm) 腳位配置指南
DSPIC33CK256MC502-I/2N（28-uqfn (6x6 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： DSPIC33CK256MC502-I/2N.
請參閱 資料表 以查看完整腳位配置。
典型應用
DSPIC33CK256MC502-I/2N 適用於 6 應用s: Brushless DC / PMSM Motor Control, Digital Power Supplies (AC/DC, DC/DC, PFC), CAN FD Industrial Networking Nodes, Sensor Signal Conditioning with On-chip Op-Amps, Battery Management and e-Mobility Control Boards, High-Performance General Embedded Control.
Brushless DC / PMSM Motor Control
The DSPIC33CK256MC502-I/2N fits sensorless and sensored FOC motor drives because its 100 MIPS core executes field-oriented control loops fast enough for high electrical speeds, while the high-speed PWM provides complementary outputs with dead-time insertion and the 12-bit ADC samples phase currents synchronized to PWM centers. The on-chip op-amps can amplify shunt-current signals directly, removing external amplifier ICs from a typical 3-phase inverter. Designers use the 256 KB Flash to hold FOC algorithms, commutation tables, and communication stacks simultaneously. In a 28-pin layout, plan current-sense pins and PWM outputs early, since the UQFN footprint limits rework. Quantified benefit: single-chip control reduces loop latency versus discrete amplifier-plus-ADC chains and lowers BOM cost in high-volume drives.
推薦
Digital Power Supplies (AC/DC, DC/DC, PFC)
Digital switching power supplies benefit from the DSPIC33CK256MC502-I/2N's tight ADC-to-PWM synchronization: the 12-bit ADC can trigger from the PWM time base so current-mode control samples land on the switching cycle midpoint, minimizing switching-noise corruption. The 100 MIPS DSP core runs proportional-integral compensators with single-cycle MAC instructions, supporting control-loop update rates in the hundreds of kilohertz for LLC, totem-pole PFC, and buck topologies. The high-speed PWM offers phase-shift and leading/trailing-edge modes needed for these converters. The CAN FD interface enables digital power supplies to report telemetry in server and telecom shelves. Note the trade-off: the 3.0-3.6 V supply domain requires level shifting to gate-driver logic at higher voltages.
推薦
CAN FD Industrial Networking Nodes
The integrated CAN Flexible Data-Rate (CAN FD) controller makes the DSPIC33CK256MC502-I/2N a compact industrial node: CAN FD raises payload to 64 bytes per frame and boosts the data phase well beyond classical CAN bit rates, useful for motion-control buses, battery-management telemetry, and factory sensor aggregation. Because the CAN FD module is on-chip, the 28-pin UQFN leaves sufficient I/O for local sensing while a single external CAN transceiver completes the physical layer. The 256 KB Flash accommodates protocol stacks, application logic, and OTA-style firmware update routines together. Designers should enable the FuSa documentation package where functional-safety compliance is required, as this device is listed by DigiKey under Functional Safety (FuSa) support.
推薦
Sensor Signal Conditioning with On-chip Op-Amps
With on-chip operational amplifiers feeding the 12-bit ADC, the DSPIC33CK256MC502-I/2N can close analog signal chains entirely in silicon: pressure-bridge, thermocouple-with-PGA-alternatives, and current-shunt front ends can be amplified by the internal op-amps, sampled by the 12-bit ADC with DMA offload (4 DMA channels move conversion results without CPU intervention), and processed with DSP filter instructions. This integration suits compact sensor nodes where board area is constrained by the 6x6 mm controller footprint. Quantified benefit: eliminating one external dual op-amp saves roughly 10-20 mm2 and its associated BOM cost per node. Verify op-amp bandwidth against your signal band in the datasheet before committing, since gain-bandwidth limits set the usable amplifier range.
推薦
Battery Management and e-Mobility Control Boards
Battery-powered traction and tool platforms pair the DSPIC33CK256MC502-I/2N's CAN FD networking and motor-control PWM in one 28-pin controller: the same die can run a motor drive loop and exchange pack telemetry over CAN FD, reducing controller count versus separate MCU-plus-CAN-chip designs. The 100 MIPS headroom supports coulomb counting, balancing decisions, and protection-state machines alongside commutation. The industrial -40C to +85C rating covers most under-hood accessory and power-tool environments; for engine-bay or on-charger positions exceeding +85C, select the drop-in -E/2N variant rated to +125C without PCB changes. Plan the ADC sampling of cell-voltage multiplexers early, as the 28-pin package limits analog channel availability.
推薦
High-Performance General Embedded Control
For compute-heavy general embedded systems - data acquisition, DSP filtering, encryption-assisted logging, or legacy DSP replacement - the dsPIC33CK256MC502-I/2N offers 100 MIPS throughput with DSP-enhanced instructions, 32 KB of RAM for buffering, and DMA that decouples peripheral traffic from the CPU. The 256 KB Flash supports feature-rich firmware including communication stacks (UART, SPI, I2C) plus CAN FD in one part. Compared with a Cortex-M class MCU, the dsPIC33CK's deterministic single-cycle MAC and tightly coupled PWM/ADC make fixed-point control code simpler and cycle-count predictable. Debug via ICSP with MPLAB SNAP keeps the 28-pin board free of dedicated debug connectors beyond a 5-pin header, preserving I/O count in dense designs.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC33CK256MC502-I/2N — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | DSPIC33CK256MC502-E/2N | DSPIC33CK128MC502-I/2N | DSPIC33CK128MP202-I/2N |
|---|---|---|---|---|
| Package | 28-UQFN (6x6) | 28-UQFN (6x6) - same | 28-UQFN (6x6) - same | 28-UQFN (6x6) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) |
| Flash Memory | 256 KB | 256 KB | 128 KB | 128 KB |
| RAM | 32 KB | 32 KB | 32 KB | 32 KB |
| CAN FD | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
主要差異化特點
- Full 256 KB Flash for feature-rich firmware (對比DSPIC33CK128MC502-I/2N)
- Industrial temperature ceiling with drop-in upgrade path (對比DSPIC33CK256MC502-E/2N)
- Integrated op-amps simplify analog front ends (對比DSPIC33CK128MP202-I/2N)
設計說明
On the 28-pin UQFN (6x6) footprint, place 100 nF ceramic decoupling capacitors within 2 mm of every VDD/VSS pin pair, and add one 4.7-10 uF bulk capacitor near the controller. Connect the exposed pad to a solid ground plane with an array of vias for thermal and ground integrity. Keep the ICSP programming pair routed to a header at layout time; per Microchip programming documentation, PGECx and PGEDx must be used as matched pairs and cannot be mixed across pairs.
For ADC accuracy in motor and power applications, trigger the 12-bit ADC from the PWM time base so sampling occurs during PWM center or off-times, away from switch-node transients. Keep analog traces (op-amp inputs, VREF) away from PWM gate-drive lines, and use a dedicated analog ground region tied at a single point to power ground. Estimated: even 100 mV of switching noise on a 3.3 V reference represents over 120 LSBs of error at 12-bit resolution, so filtering strategy directly defines achievable control-loop precision.
Do not exceed the 3.0-3.6 V supply domain; the dsPIC33CK is a 3.3 V-only controller and 5 V-tolerant claims should be verified pin-by-pin in the datasheet before interfacing with 5 V logic or gate drivers. When substituting the MP-family DSPIC33CK128MP202-I/2N on the same footprint, remember peripheral multiplexing differs - reassign PPS (peripheral pin select) mappings and revalidate op-amp-dependent analog front ends, since the MP variant's peripheral set targets motor-control PWM rather than the MC-family mix.
合規資訊
Verified web data for this exact ordering code did not include explicit RoHS/REACH certificate text. Microchip standard production parts are typically lead-free/RoHS-compliant, but obtain the official certificate from Microchip's compliance portal before regulatory filings.