DSPIC33CK256MP306-I/PT - 100MIPS 16-bit DSC 256KB | Microchip
MPN： DSPIC33CK256MP306-I/PT ✓ 啟用中DSPIC33CK256MP306-I/PT 概覽
A digital signal controller combines the compute power of a DSP with the peripheral integration and control peripherals of a microcontroller. In the embedded hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP: it executes deterministic control loops in C while performing MAC (multiply-accumulate) heavy signal processing on-chip. Microchip's dsPIC33C family targets real-time control systems such as digital power conversion and precision motor control, where loop rates of 100 kHz to 1 MHz are common.
Key features include the 100 MIPS single-core CPU with DSP instruction extensions, 256 KB of dual-panel flash enabling live firmware updates, 64 KB of RAM for control buffers and communication stacks, integrated operational amplifiers, 12-bit ADCs with high sample rates for simultaneous sampling, and advanced high-resolution PWM peripherals. The part is designated Functional Safety (FuSa) supporting safety-oriented designs.
Architecturally, the dsPIC33CK core uses a modified Harvard pipeline with zero-overhead loops, hardware division, and single-cycle MAC, keeping ISR latency low for tightly timed control loops. Eight DMA channels move ADC results and UART/SPI data without CPU intervention. Multiple pairs of PGECx/PGEDx pins support In-Circuit Serial Programming (ICSP); any pair can be used, but ICSPCLK and ICSPDAT must come from the same pair.
Typical applications include brushless DC and PMSM motor drives, digital switched-mode power supplies (LLC, totem-pole PFC), solar inverters, and wireless charging transmitters, all leveraging the ADC + op-amp + PWM signal chain.
Design consideration: the supply range is 3.0 V to 3.6 V - power it from a 3.3 V LDO or buck regulator with adequate decoupling, and route analog op-amp/ADC pins away from PWM switching nodes.
This page adds value beyond the manufacturer datasheet by synthesizing distributor pricing, drop-in same-family alternatives, comparison tables, and practical layout and programming notes in one citable reference.
直接替換替代品，適用於 DSPIC33CK256MP306-I/PT — 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： DSPIC33CK256MP306-I/PT （相同外形與佔位） — 差異在於 ADC, Core, Mounting Type, Package.
DSPIC33CK256MP306-E/PT
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33CK256MP306-H/PT
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33CK256MP306-I/PT 最大額定值與電氣特性
| Core | dsPIC33C 16-bit DSC, single core |
| Maximum Clock / MIPS | 100 MHz / 100 MIPS |
| Program Memory (Flash) | 256 KB (256K x 8), dual panel |
| RAM | 64 KB (64K x 8) |
| Supply Voltage Range | 3 V to 3.6 V |
| I/O Count | 53 I/O |
| ADC | 12-bit ADCs |
| Op Amps | Integrated operational amplifiers |
| PWM | High-resolution PWM peripherals |
| DMA Channels | 8 |
| 封裝 | 64-TQFP (10x10 mm), 0.5 mm pitch |
| 安裝類型 | Surface Mount (Gull Wing) |
| Temperature Grade | -40C to +85C (I grade) |
| Functional Safety | FuSa designated |
| Programming | ICSP via PGECx/PGEDx pairs |
| RoHS 狀態 | Compliant |
DSPIC33CK256MP306-I/PT 64-tqfp (10x10 mm), 0.5 mm pitch 腳位配置指南
DSPIC33CK256MP306-I/PT（64-tqfp (10x10 mm), 0.5 mm pitch 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： DSPIC33CK256MP306-I/PT.
請參閱 資料表 以查看完整腳位配置。
典型應用
DSPIC33CK256MP306-I/PT 適用於 6 應用s: BLDC/PMSM Precision Motor Control, Digital Power Conversion (LLC, Totem-Pole PFC), Solar Inverters and Microinverters, Wireless Charging Transmitters, Industrial Automation and Sensing Nodes, Functional Safety-Oriented Embedded Systems.
BLDC/PMSM Precision Motor Control
The DSPIC33CK256MP306-I/PT is purpose-built for field-oriented control (FOC) of brushless DC and PMSM motors. Its 100 MIPS core executes current-loop interrupts above 100 kHz with deterministic latency, while the 12-bit ADC captures simultaneous phase-current samples and the integrated op amps condition shunt-resistor signals without external amplifiers. The high-resolution PWM block generates three complementary pairs with cycle-accurate dead-time insertion, critical for inverter efficiency and shoot-through protection. In a typical servo drive, the DSC closes the current loop in software at 100 kHz and the speed loop at 1-10 kHz, with 8 DMA channels streaming ADC data to RAM for observers and position estimation, eliminating external sensing ICs.
推薦
Digital Power Conversion (LLC, Totem-Pole PFC)
For digitally controlled switched-mode power supplies such as LLC resonant converters and totem-pole PFC stages, the DSPIC33CK256MP306-I/PT provides the control bandwidth and peripheral precision required at switching frequencies of 100 kHz to 1 MHz. The high-resolution PWM offers sub-nanosecond effective resolution for frequency and phase control in resonant topologies, while fast 12-bit ADC sampling synchronizes to PWM triggers for cycle-by-cycle current sensing. The dual-panel 256 KB flash supports in-system firmware updates of control laws without bricking the supply, and the FuSa designation supports safety-relevant power stages. The 100 MIPS headroom accommodates nonlinear control and predictive algorithms beyond simple PID.
推薦
Solar Inverters and Microinverters
Grid-tied solar inverter designs leverage the DSPIC33CK256MP306-I/PT for maximum power point tracking (MPPT), grid synchronization, and inverter modulation in one device. The 100 MHz core runs MPPT algorithms while simultaneously executing the grid current-control loop; the 12-bit ADC samples DC bus voltage, panel current, and grid waveforms synchronously with the PWM carrier. Integrated op amps condition current-sense signals directly, and the high-resolution PWM shapes the output waveform with low harmonic distortion. Dual-panel flash enables field firmware updates for changing grid codes, and the 53 I/O support relays, communication (RS-485, CAN), and safety interlocks without a companion controller.
推薦
Wireless Charging Transmitters
Qi-style wireless power transmitter designs use the DSPIC33CK256MP306-I/PT to drive the resonant half-bridge and control foreign-object detection and power negotiation. The high-resolution PWM generates the operating-frequency drive with precise frequency tracking of the resonant tank, while the 12-bit ADC monitors coil current, voltage, and temperature via integrated op-amp buffers. The 100 MIPS core implements demodulation of the receiver's communication signal and closed-loop power regulation in software. Eight DMA channels handle the sensing streams with minimal CPU overhead, and the 64 KB RAM supports buffers for demodulation and safety algorithms, allowing a single-chip transmitter controller solution.
推薦
Industrial Automation and Sensing Nodes
In factory automation, the DSPIC33CK256MP306-I/PT serves as a smart sensor or actuator controller, combining 16-bit DSP signal processing with rich connectivity. The 12-bit ADC plus integrated op amps digitize bridge sensors (pressure, load cells) with on-chip amplification, and the DSP engine applies digital filtering (FIR/IIR) at 100 MIPS - tasks that would need an external DSP on lesser MCUs. Multiple UART/SPI/I2C interfaces plus 53 I/O integrate with PLC I/O racks, and dual-panel flash supports field reconfiguration. The industrial -40C to +85C grade and RoHS compliance fit standard factory equipment qualification requirements.
推薦
Functional Safety-Oriented Embedded Systems
Designers building safety-relevant equipment select the DSPIC33CK256MP306-I/PT because DigiKey and Microchip classify this dsPIC33CK part under the Functional Safety (FuSa) designation, with supporting safety documentation available from Microchip. The dual-panel flash architecture allows validated firmware to boot and update safely, the deterministic 100 MIPS core simplifies worst-case execution-time analysis, and the 64 KB RAM supports redundant data structures for diagnostics. Typical uses include safety interlock controllers in motor drives, monitored power stages, and industrial equipment where control and diagnostics must run on one certified-supportable device rather than a split MCU plus supervisor architecture.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC33CK256MP306-I/PT — 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 | DSPIC33CK256MP306-E/PT | DSPIC33CK256MP306-H/PT | DSPIC33CK256MP205-I/PT |
|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TFQFP (0.5 mm pitch) - same footprint | 48-TQFP (7x7 mm) - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS |
| Flash Memory | 256 KB dual panel | 256 KB dual panel | 256 KB dual panel | 256 KB dual panel |
| RAM | 64 KB | 64 KB | 64 KB | 64 KB |
| Temperature Range | -40C to +85C (I) | -40C to +125C (E) | Automotive grade | -40C to +85C (I) |
| AEC-Q100 | Not qualified (industrial) | Not qualified | Qualified | Not qualified |
主要差異化特點
- Identical die in extended temperature grade (對比DSPIC33CK256MP306-E/PT)
- Automotive qualification path on same footprint (對比DSPIC33CK256MP306-H/PT)
- Maximum I/O in the 256 KB dsPIC33CK family (對比DSPIC33CK256MP205-I/PT)
設計說明
Power the DSPIC33CK256MP306-I/PT from a regulated 3.3 V supply within the 3.0 V to 3.6 V datasheet range. Place 0.1 uF ceramic decoupling capacitors at every VDD/VSS pair plus one bulk 10 uF capacitor near the device. Split the analog supply per datasheet AVDD guidance and filter it with an LC or ferrite bead from the digital rail so the ADC and op amps see clean power - PWM switching noise on AVDD directly degrades 12-bit conversion accuracy.
Use the 10x10 mm 64-TQFP land pattern per the Microchip datasheet with 0.5 mm pitch. Route PWM outputs to gate drivers away from op-amp/ADC analog traces; place a ground plane under the device and do not break it under analog routing. Assign shunt-sense routing as Kelvin connections to the integrated op-amp inputs. Group crystals within a few mm of the OSC pins with short traces and local ground guard.
For in-circuit serial programming (ICSP), remember the device offers multiple PGECx/PGEDx pairs and ICSPCLK/ICSPDAT must come from the SAME pair (e.g., PGEC2 with PGED2) - mixing pairs is the most common programming failure. Also, firmware compiled for dsPIC33CK family parts is portable across MP205/MP306 variants, but verify peripheral instance counts and pin mapping when moving between 48-pin and 64-pin packages before reusing linker and pin-configuration files.
合規資訊
RoHS compliance stated by LCSC listing (C3228353). The related -H/PT variant is AEC-Q100 qualified; this -I/PT industrial grade is not. REACH, halogen-free, and conflict-minerals status not stated in provided data.
