DSPIC33CK256MP305T-I/PT - 16-bit 100MIPS DSC 256KB Flash | Microchip
부품 번호: DSPIC33CK256MP305T-I/PT ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $1.69 | $1.69 |
| 10 | $1.62 | $16.20 |
| 100 | $1.52 | $152.00 |
| 500 | $1.45 | $725.00 |
| 1,000 | $1.38 | $1,380.00 |
DSPIC33CK256MP305T-I/PT 개요
A digital signal controller combines the compute architecture of a microcontroller with the mathematical throughput of a digital signal processor. In the power-management hierarchy of embedded systems, a DSC sits between general-purpose MCUs and dedicated DSPs: it runs real-time control loops (current, voltage, speed) at high sampling rates while handling communication, state machines, and housekeeping tasks on the same silicon. The dsPIC33C generation is Microchip's flagship DSC platform for digital power and precision motor control.
Key features include the 100 MIPS modified Harvard DSP core with DSP instruction extensions (MAC, barrel shifter), 256KB dual-panel Flash enabling live firmware updates, and integrated analog: 12-bit ADCs, on-chip operational amplifiers, and high-resolution PWM peripherals for power conversion. Eight DMA channels offload data movement, and three serial I/O ports (UART/SPI/I2C class) cover connectivity. DigiKey lists the part under the Functional Safety (FuSa) supported dsPIC33C line.
Technically, the dual-panel Flash architecture allows the CPU to execute from one panel while erasing/programming the other, supporting field upgrades without an external bootloader memory. The peripheral ecosystem (PWM with dedicated time base, high-speed comparators, op-amps) forms a complete digital-power control loop on-chip, minimizing external components and loop latency.
Typical applications include precision motor control (PMSM, BLDC, FOC), switch-mode power supplies and PFC stages, digital lighting, and industrial automation nodes. The rich PWM and ADC resources map directly onto these real-time control problems.
Design consideration: at 100 MIPS, ensure the power supply decoupling and clock routing follow Microchip's layout guidance, and budget the 64KB RAM carefully if running complex field-oriented control observers.
This page synthesizes distributor pricing (as of 2026-09-23), same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
드롭인 대체품: DSPIC33CK256MP305T-I/PT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: DSPIC33CK256MP305T-I/PT (동일 폼 팩터 및 풋프린트) — 차이점: Operating Temperature, Package, Core, Data SRAM, Architecture.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
DSPIC33CK256MP205-I/PT
✅ 드롭인✓ 재고 있음
$3.55 / 개
데이터시트 보기 →DSPIC33CK256MP205-E/PT
✅ 드롭인✓ 재고 있음
$3.92 / 개
데이터시트 보기 →DSPIC33CK128MP205-I/PT
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPIC33CK128MP205-E/PT
✅ 드롭인✓ 재고 있음
$3.61 / 개
데이터시트 보기 →DSPIC33CK256MP305T-E/PT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DSPIC33CK256MP305T-I/PT 최대 정격 & 전기적 특성
| Core | dsPIC33C 16-bit DSC core |
| CPU Speed | 100 MHz / 100 MIPS |
| Core Architecture | Single core, modified Harvard, DSP-enhanced |
| Program Memory | 256KB (256K x 8) Flash, dual-panel |
| RAM | 64KB |
| Data Width | 16 bit |
| DMA Channels | 8 |
| Serial Ports | 3 serial I/O ports (per distributor listing) |
| ADC | 12-bit ADCs (on-chip) |
| Analog Peripherals | On-chip operational amplifiers |
| PWM | High-resolution PWM peripherals |
| 동작 온도 | -40C to +125C (I grade) |
| 패키지 | 48-TQFP (7x7 mm) |
| 실장 유형 | Surface Mount |
| Functional Safety Support | Yes (FuSa class per DigiKey listing) |
DSPIC33CK256MP305T-I/PT 48-tqfp (7x7 mm) 핀 구성 가이드
DSPIC33CK256MP305T-I/PT(48-tqfp (7x7 mm) 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: DSPIC33CK256MP305T-I/PT.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
DSPIC33CK256MP305T-I/PT 적합 용도: 6 애플리케이션s: Precision Motor Control (PMSM/BLDC FOC), Digital Power Conversion (SMPS/PFC), Industrial Automation and PLC Nodes, Digital Lighting and LED Drivers, Wireless and IoT Sensor Nodes (controller layer), Test, Measurement and Instrumentation.
Precision Motor Control (PMSM/BLDC FOC)
The DSPIC33CK256MP305T-I/PT is purpose-built for field-oriented control of PMSM and BLDC motors: the 100 MHz/100 MIPS DSP core executes current loops at tens of kHz while the 12-bit ADC samples phase currents and the high-resolution PWM drives the three-phase inverter with fine duty resolution. On-chip operational amplifiers condition shunt-current signals directly, removing external amp stages and reducing loop latency and offset error. The 8 DMA channels stream ADC results to RAM without CPU intervention, keeping interrupt load low during the fastest control ticks. Placed as the single controller in a servo drive or industrial actuator, it provides deterministic real-time behavior with dual-panel Flash allowing firmware field updates of the motion algorithms without an external memory.
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Digital Power Conversion (SMPS/PFC)
In switch-mode power supplies and PFC front ends, the DSPIC33CK256MP305T-I/PT closes voltage and current loops digitally. The high-resolution PWM delivers sub-nanosecond-class duty resolution, and the 12-bit ADC with DMA captures input/output voltages and inductor current each switching cycle. The 100 MIPS core runs compensator calculations within one PWM period at conversion frequencies common in telecom and server power. The dual-panel 256KB Flash supports firmware-updatable power supplies whose control laws can be tuned in the field, and the 64KB RAM holds data logs for adaptive algorithms. Compared with analog controllers, this DSC enables nonlinear and adaptive control, sequencing, and digital communication (PMBus-class telemetry) in the same silicon.
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Industrial Automation and PLC Nodes
For industrial control nodes, the DSPIC33CK256MP305T-I/PT combines deterministic real-time control with three serial ports (UART/SPI/I2C-class) for fieldbus gateways, sensors, and HMI links. The -40C to +125C industrial temperature grade suits cabinet and motor-junction environments, and the DigiKey FuSa classification supports functional-safety-oriented designs with Microchip safety documentation. Eight DMA channels plus DSP math instructions let one chip handle signal processing (vibration, current signatures) and protocol handling simultaneously. The 256KB Flash accommodates protocol stacks and data logging, while pin remapping via Peripheral Pin Select adapts one PCB design to multiple product variants, reducing SKU proliferation in factory automation equipment.
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Digital Lighting and LED Drivers
High-power LED drivers benefit from the DSPIC33CK256MP305T-I/PT's combination of high-resolution PWM (dimming and color mixing with fine granularity), 12-bit ADC for current regulation and temperature telemetry, and on-chip op-amps for sensing. The 100 MIPS core runs constant-current loops, thermal derating, and communication (DALI/DMX-class via serial ports) concurrently. Dual-panel Flash lets fielded luminaires receive firmware updates adding new dimming curves or protocols without hardware changes, and the 64KB RAM supports buffering for effects engines. Its -40C to +125C rating covers outdoor and enclosed fixture temperatures, making it a single-chip replacement for separate MCU-plus-analog-controller solutions in professional lighting.
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Wireless and IoT Sensor Nodes (controller layer)
As the local real-time controller in IoT sensor and actuator nodes, the DSPIC33CK256MP305T-I/PT preprocesses analog data with its 12-bit ADCs and DSP instructions (FFT-based vibration or power-signature analysis) before handing results to a separate radio module over its serial ports. The 8 DMA channels keep sampling continuous while the core sleeps between bursts, conserving power in battery-backed nodes. The industrial temperature grade and robust 5V-class dsPIC I/O tolerance simplify integration in electrically noisy environments such as smart meters, solar trackers, and building automation. Peripheral Pin Select lets one firmware image serve multiple board revisions, and dual-panel Flash enables over-the-air-capable update staging in 256KB of program space.
추천
Test, Measurement and Instrumentation
Portable and bench instrumentation uses the DSPIC33CK256MP305T-I/PT for trigger engines, waveform generation, and closed-loop control of measurement front ends. The 100 MIPS DSP core applies windowing, filtering, and RMS math in real time; the high-resolution PWM generates precise stimulus waveforms; and on-chip op-amps buffer sensor outputs ahead of the 12-bit ADC. Three serial ports stream data to host processors or displays, and DMA maintains gap-free capture of ADC samples into the 64KB RAM. Boundary-scan support (noted in distributor listings) assists board-level test, while the dual-panel Flash supports feature-upgradable instruments whose calibration routines and analysis firmware evolve across product generations.
추천
추천 제품 요약
엔지니어링 참조 데이터: DSPIC33CK256MP305T-I/PT — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | DSPIC33CK256MP205-I/PT | DSPIC33CK256MP205-E/PT | DSPIC33CK128MP205-E/PT | DSPIC33CK256MP305T-E/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same |
| CPU Speed | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS | 100 MHz / 100 MIPS |
| Flash Memory | 256KB dual-panel | 256KB | 256KB | 128KB | 256KB |
| On-chip Op-Amps | Full set (3 per family positioning) | Reduced set vs MP305 | Reduced set vs MP305 | Reduced set vs MP305 | Full set (same die) |
| Temperature Grade | I: -40C to +125C | I grade | E grade (extended) | E grade (extended) | E grade (extended) |
| DMA Channels | 8 | 8 | 8 | 8 | 8 |
주요 차별점
- Full on-chip analog set with op-amps (vs DSPIC33CK256MP205-I/PT)
- Double the program memory of 128KB variants (vs DSPIC33CK128MP205-E/PT)
- Standard industrial temperature grade availability (vs DSPIC33CK256MP305T-E/PT)
설계 노트
The dsPIC33CK core is supplied from an internal regulator fed by the I/O/VMOS supply rail; consult the family datasheet for the exact VDD range and decoupling network. Estimated: at 100 MIPS with peripherals active, core current is typically in the tens of mA range, so a local bulk capacitor plus 0.1uF ceramic per VDD pin within 2-3 mm of the pin is recommended. Do not share the analog supply filter with PWM-driven loads; separate AVDD with a ferrite bead for ADC accuracy.
At 100 MHz operation, keep the crystal/oscillator traces short and guarded by ground, and route high-edge-rate PWM outputs away from analog sense lines feeding the on-chip op-amps. Since pins are multiplexed via Peripheral Pin Select, assign noisy PWM functions to pins physically distant from AVDD/ADC inputs during schematic capture rather than remapping later. Star-ground or solid-plane the 7x7 TQFP thermal pad area to reduce ground bounce on ADC readings.
Two frequent mistakes with dsPIC33C designs: (1) assuming all 48 pins are general-purpose - many are ADC-only or peripheral-only, so verify the pin table before finalizing a schematic; (2) overlooking the dual-panel Flash behavior - code executing from the active panel cannot erase itself, so bootloader designs must place erase/write routines appropriately. Also confirm the RAM capacity needed: the MP305 has 64KB, but lower-numbered family variants differ, so linker scripts do not always transfer unchanged.
규정 준수 정보
Compliance data not present in provided web data; consult Microchip's product page environmental datasheet for RoHS/REACH status.