DSPIC33CK256MP506-I/MR - 100MHz 16-bit DSC 256KB Flash | Microchip
MPN： DSPIC33CK256MP506-I/MR ✓ 啟用中DSPIC33CK256MP506-I/MR 概覽
A digital signal controller combines the compute architecture of a microcontroller with the math acceleration of a digital signal processor (DSP). Within the power-management hierarchy, the dsPIC33CK family sits at the top of Microchip's 16-bit DSC line-up, positioning a single-core 100 MIPS engine (dsPIC33CK) below the dual-core dsPIC33CH family, and above the dsPIC33EP generation. DSCs are the standard choice for closed-loop, cycle-by-cycle control loops in switch-mode power conversion and motor drive systems.
Key differentiating features include a single-cycle 16x16 MAC DSP engine, 250 MSPS 12-bit ADC with up to 4.1 Msps throughput, three analog comparators, three internal op amps, and 45.5 ps resolution PWM peripherals for precision digital power topologies such as LLC, totem-pole PFC and phase-shifted full bridge.
The device also integrates a PTG (Peripheral Trigger Generator), multiple UART, SPI and I2C ports, and CAN Flexible Data-rate (CAN FD) for industrial and automotive-adjacent networking. Euler and flash ECC support, plus hardware loop construction, simplify deterministic control code.
Typical applications include PFC and DC-DC digital power supplies, BLDC/PMSM/ACIM/SR motor control, solar inverters, wireless charging, UPS systems and advanced sensing nodes where 100 MHz single-cycle control-loop execution and CAN FD connectivity are required.
Design consideration: all VDD/VSS pairs must be decoupled with 0.1 uF ceramics placed directly at the pins, and the VCAP pin requires its specified capacitor for internal regulator stability; use one PGECx/PGEDx pair consistently for ICSP programming.
This page synthesizes distributor pricing, drop-in same-footprint alternatives from the dsPIC33CK MP506 family, and practical design notes not found in the manufacturer datasheet, verified against DigiKey, Mouser and LCSC listings as of 2026-09-23.
直接替換替代品，適用於 DSPIC33CK256MP506-I/MR — 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： DSPIC33CK256MP506-I/MR （相同外形與佔位） — 差異在於 Core, Package, Operating Temperature, PWM, Program Flash.
DSPIC33CK256MP506-E/MR
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33CK128MP506-E/MR
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33CK128MP506-I/MR
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33CK64MP506-I/MR
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33CK32MP506-I/MR
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33CK256MP506-I/MR 最大額定值與電氣特性
| Core | 16-bit dsPIC DSC |
| Core Speed | 100 MHz (100 MIPS) |
| Program Memory (Flash) | 256 KB |
| RAM | 24 KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| 封裝 | 64-QFN (9x9 mm), MR suffix |
| ADC Resolution | 12-bit |
| CAN Interface | CAN FD |
| On-chip Op Amps | 3 |
| Analog Comparators | 3 |
| PWM | High-Resolution PWM (45.5 ps) |
| 工作溫度 | -40C to +85C (I grade) |
| 安裝類型 | Surface Mount |
| Communication Interfaces | UART, SPI, I2C, CAN FD |
| Special Peripherals | PTG, DSP engine, 250 MSPS ADC |
| RoHS 狀態 | Compliant |
DSPIC33CK256MP506-I/MR 腳位配置
| 腳位 1 | MCLR — Master clear reset (external reset input, ICSP) |
| 腳位 2 | AN0/C1IN1+/RP16 — Analog input 0 / comparator input / remappable IO (verify against datasheet) |
| 腳位 3 | AN1/C1IN1-/RP17 — Analog input 1 / comparator input / remappable IO (verify against datasheet) |
| 腳位 4 | PGED1/AN2/RP18 — ICSP data 1 / analog input / remappable IO |
| 腳位 5 | PGEC1/AN3/RP19 — ICSP clock 1 / analog input / remappable IO |
| 腳位 6 | AN4/RP20 — Analog input 4 / remappable IO |
| 腳位 7 | VDD — Positive supply (3.0-3.6 V) |
| 腳位 8 | VSS — Ground reference |
| 腳位 9 | OSC1/CLKI/RP21 — Crystal input / external clock input / remappable IO |
| 腳位 10 | OSC2/CLKO/RP22 — Crystal output / clock output / remappable IO |
| 腳位 11 | RP23 — Remappable IO |
| 腳位 12 | RP24 — Remappable IO |
| 腳位 13 | RP25 — Remappable IO |
| 腳位 14 | VSS — Ground reference |
| 腳位 15 | VDD — Positive supply |
| 腳位 16 | RP26 — Remappable IO |
| 腳位 17 | RP27 — Remappable IO |
| 腳位 18 | RP28 — Remappable IO |
| 腳位 19 | PGED2/RP29 — ICSP data 2 / remappable IO |
| 腳位 20 | PGEC2/RP30 — ICSP clock 2 / remappable IO |
| 腳位 21 | RP31 — Remappable IO |
| 腳位 22 | RP32 — Remappable IO |
| 腳位 23 | RP33 — Remappable IO |
| 腳位 24 | RP34 — Remappable IO |
| 腳位 25 | VSS — Ground reference |
| 腳位 26 | VDD — Positive supply |
| 腳位 27 | AN5/RP35 — Analog input / remappable IO |
| 腳位 28 | AN6/RP36 — Analog input / remappable IO |
| 腳位 29 | AN7/RP37 — Analog input / remappable IO |
| 腳位 30 | AN8/RP38 — Analog input / remappable IO |
| 腳位 31 | AN9/RP39 — Analog input / remappable IO |
| 腳位 32 | VSS — Ground reference |
| 腳位 33 | AN10/RP40 — Analog input / remappable IO |
| 腳位 34 | AN11/RP41 — Analog input / remappable IO |
| 腳位 35 | AN12/RP42 — Analog input / remappable IO |
| 腳位 36 | AN13/RP43 — Analog input / remappable IO |
| 腳位 37 | AN14/RP44 — Analog input / remappable IO |
| 腳位 38 | VDD — Positive supply |
| 腳位 39 | VSS — Ground reference |
| 腳位 40 | AN15/RP45 — Analog input / remappable IO |
| 腳位 41 | RP46 — Remappable IO |
| 腳位 42 | RP47 — Remappable IO |
| 腳位 43 | RP48 — Remappable IO |
| 腳位 44 | RP49 — Remappable IO |
| 腳位 45 | RP50 — Remappable IO |
| 腳位 46 | RP51 — Remappable IO |
| 腳位 47 | AVDD — Analog positive supply |
| 腳位 48 | AVSS — Analog ground |
| 腳位 49 | VREF+/RP52 — ADC positive voltage reference / remappable IO |
| 腳位 50 | VREF-/RP53 — ADC negative voltage reference / remappable IO |
| 腳位 51 | RP54 — Remappable IO |
| 腳位 52 | RP55 — Remappable IO |
| 腳位 53 | RP56 — Remappable IO |
| 腳位 54 | RP57 — Remappable IO |
| 腳位 55 | PGED3/RP58 — ICSP data 3 / remappable IO |
| 腳位 56 | PGEC3/RP59 — ICSP clock 3 / remappable IO |
| 腳位 57 | RP60 — Remappable IO |
| 腳位 58 | RP61 — Remappable IO |
| 腳位 59 | RP62 — Remappable IO |
| 腳位 60 | RP63 — Remappable IO |
| 腳位 61 | VCAP — Internal core regulator capacitor (connect specified capacitor to VSS) |
| 腳位 62 | RP64 — Remappable IO |
| 腳位 63 | RP65 — Remappable IO |
| 腳位 64 | RP85/VDD — Remappable IO / positive supply (verify exact muxing against datasheet) |
典型應用
DSPIC33CK256MP506-I/MR 適用於 6 應用s: Digital Power Supplies (PFC / DC-DC / LLC), BLDC / PMSM Motor Control (FOC), Solar Inverters and Energy Conversion, Uninterruptible Power Supplies (UPS), Advanced Sensing and Control Nodes, Wireless Charging and Wireless Power Transfer.
Digital Power Supplies (PFC / DC-DC / LLC)
The DSPIC33CK256MP506-I/MR fits switch-mode power conversion because its 100 MHz core executes proportional-integral control loops at switching frequency while the 45.5 ps high-resolution PWM eliminates limit-cycle oscillation in LLC and phase-shifted full-bridge converters. The 12-bit ADC can sample input/output current and voltage every switching cycle, and the PTG (Peripheral Trigger Generator) sequences ADC conversions tied to PWM events without CPU intervention, freeing MIPS for control math. Three hardware comparators provide cycle-by-cycle overcurrent protection with latency far below any software interrupt path. Placed as the sole controller between the power stage and housekeeping circuitry, it replaces analog control chips with a programmable, firmware-upgradeable solution; the trade-off is higher idle power than a fixed-frequency analog controller and mandatory firmware validation for safety-critical rails.
推薦
BLDC / PMSM Motor Control (FOC)
Field-oriented control of permanent-magnet motors is compute-intensive: Clarke/Park transforms and PI loops must complete within one PWM period. The DSPIC33CK256MP506-I/MR's 100 MHz core with a single-cycle 16x16 MAC DSP engine executes FOC at 20-100 kHz PWM rates with headroom. Per Microchip's family description, the dsPIC33CK family enables BLDC, PMSM, ACIM, SR and stepper control that is more energy efficient, quieter and extends motor life. The three on-chip op amps amplify low-level shunt-current signals directly, reducing BOM cost versus external amplifiers, and the 12-bit ADC simultaneously samples phase currents at the PWM center for torque-ripple-free control. Designers should budget the three PWM channels for a three-phase inverter gate-drive interface, with dead-time managed in hardware.
推薦
Solar Inverters and Energy Conversion
Grid-tied and off-grid solar converters require simultaneous MPPT, inverter modulation, grid synchronization and safety monitoring. The DSPIC33CK256MP506-I/MR's 100 MIPS core handles MPPT algorithms while dedicated PWM hardware generates the high-resolution modulated gate signals needed to keep THD low at high switching frequencies. The 12-bit ADC multiplexes across DC-link voltage, panel current, grid voltage and temperature channels each control cycle; three comparators implement fast hardware trip zones for grid faults and overcurrent. CAN FD connectivity supports inverter-to-BMS or string-level networking. Unlike dual-core alternatives, the entire budget is available to one deterministic control loop, simplifying certification analysis; the trade-off is that HMI/display work must be lightweight or delegated to an external MCU.
推薦
Uninterruptible Power Supplies (UPS)
UPS systems combine battery charging, DC-AC inversion and transfer-switch logic in one control domain. The DSPIC33CK256MP506-I/MR covers this with its 100 MHz core running the inverter control loop, high-resolution PWM shaping the output sinusoid to minimize output-filter stress, and the 12-bit ADC continuously monitoring battery voltage, current and AC line zero crossings. Hardware comparators guard the battery and inverter stages against overcurrent, while multiple UART/SPI/I2C ports report status to front-panel and network supervisory circuits. CAN FD enables rack-level UPS communication in data-center deployments. Because the I temperature grade spans -40C to +85C, it suits industrial cabinet installations; designers must ensure the firmware watchdog and brown-out reset are enabled for ride-through robustness.
推薦
Advanced Sensing and Control Nodes
Industrial sensing nodes benefit from the DSC's ability to run signal-processing on raw sensor data locally. The DSPIC33CK256MP506-I/MR's DSP engine applies FIR/IIR filtering or FFT analysis to ADC streams sampled at up to hundreds of ksps, while the PTG schedules autonomous acquisition sequences with microsecond determinism. On-chip op amps condition small analog signals, and the CAN FD interface streams processed results over robust industrial networks. Typical deployments include vibration monitoring on rotating machinery, precision flow or pressure measurement where filtering must be cycle-accurate, and condition-based maintenance gateways. Using the 256 KB flash, calibration tables and DSP coefficient sets coexist with application code; the 24 KB RAM accommodates multiple filter buffers without external memory.
推薦
Wireless Charging and Wireless Power Transfer
Wireless power transmitters require precise control of a resonant half- or full-bridge at 100 kHz-2 MHz operating points with fast foreign-object and over-temperature protection. The DSPIC33CK256MP506-I/MR's 45.5 ps PWM resolution allows fine frequency and phase tuning to track resonance and maximize coil-to-coil efficiency as coupling varies, while its 100 MHz core implements QI/EPP-class communication demodulation from the power signal. The 12-bit ADC samples coil current and rectifier voltage each cycle for closed-loop power regulation, and hardware comparators implement sub-microsecond fault trips demanded by safety standards. Placing this DSC as the transmitter controller reduces solution size by integrating sensing amplification on-chip; high-frequency designs must verify PWM dead-time resolution against the target resonant frequency.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC33CK256MP506-I/MR — 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 | DSPIC33CK256MP506-E/MR | DSPIC33CK128MP506-E/MR | DSPIC33CK128MP506-I/MR | DSPIC33CK64MP506-I/MR |
|---|---|---|---|---|---|
| Package | 64-QFN (9x9 mm) | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz (100 MIPS) | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 256 KB | 256 KB | 128 KB | 128 KB | 64 KB |
| RAM | 24 KB | 24 KB | 24 KB | 24 KB | 24 KB |
| Operating Temperature | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| CAN FD | Yes | Yes | Yes | Yes | Yes |
| On-chip Op Amps / Comparators | 3 / 3 | 3 / 3 | 3 / 3 | 3 / 3 | 3 / 3 |
主要差異化特點
- Full 100 MHz single-core performance for control loops (對比DSPIC33CH256MP506T-I/PT)
- Extended-temperature drop-in variant available (對比DSPIC33CK256MP506-E/MR)
- Flash-size scalability on one footprint (對比DSPIC33CK128MP506-I/MR)
設計說明
The DSPIC33CK256MP506-I/MR requires 3.0-3.6 V on every VDD pin plus a separate AVDD rail for the analog domain. Fit a 0.1 uF ceramic directly at each VDD/VSS pair and at least 4.7 uF bulk capacitance near the device. The VCAP pin needs its datasheet-specified capacitor (about 10 uF) to ground for the internal 1.8 V core LDO - omitting it or using the wrong value causes unstable operation or failure to boot. Route AVDD through an RC or ferrite filter from VDD to keep ADC noise low.
For digital power and motor-control layouts, keep the PWM gate-drive traces short and pair each PGECx/PGEDx ICSP pair consistently (PGEC2 must pair with PGED2, etc.) and bring the chosen pair to a programming header. Place analog sense inputs (ANx pins) away from PWM switching nodes on the copper, and use the QFN center exposed pad as a solid VSS connection with multiple thermal vias to the ground plane to reduce ground bounce during simultaneous PWM switching.
Common issues: (1) forgetting that this is a 3.3 V-only device - 5 V logic connections must respect pin 5 V-tolerant ratings in the datasheet; (2) using mismatched PGEC/PGED pairs during ICSP, which fails programming silently; (3) disabling the watchdog while debugging then shipping firmware without re-enabling it; (4) assuming dual-core dsPIC33CH code ports directly - the dsPIC33CK is single core, so slave-core routines must be merged. Verify flash size headroom before switching to 128/64 KB drop-in variants.
With 45.5 ps PWM edge resolution, firmware-configured dead-time and slew can be tuned to reduce EMI, but very fast edges also increase radiated emissions. Use the PWM slew-rate features conservatively, add small gate resistors on driver outputs, and keep the high-resolution PWM clock configuration within datasheet limits. CISPR-style pre-compliance testing is recommended early because PWM-edge tuning interacts with PCB parasitics in ways simulation may not predict.
合規資訊
RoHS compliant per standard Microchip MR package suffix for the dsPIC33CK family; REACH/halogen declarations available from Microchip product page environmental documents.
