DSPIC33CK128MC505T-I/PT - 100MHz DSC, 128KB Flash | Microchip
N.º da peça: DSPIC33CK128MC505T-I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.86 | $4,86 |
| 10 | $4.42 | $44,20 |
| 100 | $3.95 | $395,00 |
| 500 | $3.56 | $1.780,00 |
| 1.000 | $3.2 | $3.200,00 |
DSPIC33CK128MC505T-I/PT Visão geral
A Digital Signal Controller combines the computational capability of a DSP with the peripheral integration and control-oriented architecture of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC sits between a general-purpose MCU and a dedicated DSP, providing deterministic single-cycle MAC and DSP instructions alongside real-time control peripherals such as high-speed PWM, making it the standard choice for Field-Oriented Control (FOC) motor drives and digital power conversion.
Key differentiating features include the 100 MHz dsPIC33CK core with DSP-enhanced instruction set, a 12-bit 3.5 Msps ADC with up to 20 input channels, two on-chip 12-bit DACs, and integrated operational amplifiers that reduce external BOM cost in current-sense paths. CAN FD (Flexible Data-rate) support enables modern automotive and industrial network nodes.
Architecturally, the device belongs to Microchip's dsPIC33CK128MC505 family (part of the broader dsPIC33CK256MC50X documentation family), built on CMOS process technology with multiple internal bus architectures, a barrel shifter, four DMA channels, and hardware divide support. Operating voltage is 3.0 V to 3.6 V, with operation specified at -40C to +85C for the I temperature grade.
Typical applications include brushless DC and PMSM motor control with sensorless FOC, digital power supplies such as totem-pole PFC and LLC converters, CAN FD networked industrial nodes, and high-performance general embedded control.
A key design consideration: the 3.0-3.6 V supply rails require a stable LDO or buck regulator, and the 12-bit ADC reference should be decoupled carefully to preserve conversion accuracy at 3.5 Msps.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
Alternativas drop-in para DSPIC33CK128MC505T-I/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasDSPIC33CK128MC505T-I/PT Classificações máximas e características elétricas
| Core | dsPIC33CK 16-bit DSC |
| Maximum Operating Frequency | 100 MHz (100 MIPS) |
| Program Memory (Flash) | 128 KB |
| Data RAM | 16 KB |
| Operating Voltage Range | 3.0 V to 3.6 V |
| ADC Resolution | 12-bit |
| ADC Channels | 20 channels |
| DAC | 2 x 12-bit |
| Communication Interfaces | CAN FD, UART, SPI, I2C |
| DMA Channels | 4 |
| General-Purpose I/O | 39 pins |
| Encapsulamento | 48-TQFP (7x7 mm, 0.5 mm pitch) |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40C to +85C (I grade) |
| Packaging | Tape & Reel (T suffix) |
| Status RoHS | Compliant |
| Technology | CMOS |
Guia de Configuração de Pinos do DSPIC33CK128MC505T-I/PT 48-tqfp (7x7 mm, 0.5 mm pitch)
Configuração de pinos para DSPIC33CK128MC505T-I/PT (pacote 48-tqfp (7x7 mm, 0.5 mm pitch)). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para DSPIC33CK128MC505T-I/PT.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
DSPIC33CK128MC505T-I/PT é adequado para 6 aplicaçãos: Sensorless BLDC/PMSM Motor Control (FOC), Digital Power Conversion (Totem-Pole PFC, LLC), CAN FD Industrial Network Nodes, Embedded Sensing with Integrated Analog, High-Performance General Embedded Control, Digital Audio and Signal Processing Front Ends.
Sensorless BLDC/PMSM Motor Control (FOC)
The DSPIC33CK128MC505T-I/PT is optimized for Field-Oriented Control of brushless DC and permanent-magnet synchronous motors. Its 100 MHz core executes FOC current loops with deterministic single-cycle MAC instructions, while the high-speed PWM peripheral provides high-resolution duty update for low-ripple phase currents. The 12-bit, 20-channel ADC samples two phase currents and the DC bus simultaneously, and the integrated op-amps condition shunt-resistor signals without external amplifiers, cutting BOM cost per drive. Typical firmware sizes for sensorless FOC plus a CAN FD service layer fit comfortably in the 128 KB Flash. Designers should place the ADC sampling trigger synchronous to the PWM center to minimize switching-noise coupling into current measurements.
Recomendado
Digital Power Conversion (Totem-Pole PFC, LLC)
In digital power supplies such as totem-pole PFC and LLC converters, the DSPIC33CK128MC505T-I/PT supplies the control loop at 100 MIPS with fast, deterministic interrupt latency. The 12-bit ADC at high sample rate closes voltage and current loops well above the converter bandwidth, and the high-resolution PWM (sub-nanosecond duty steps) enables precise phase-shift and burst-mode control needed for high-efficiency topologies. Two 12-bit DACs drive onboard comparators for cycle-by-cycle overcurrent protection in hardware, independent of CPU load. The 3.0-3.6 V digital supply should be generated by a clean local regulator, isolated from the noisy power-stage gate-drive rail to preserve ADC accuracy.
Recomendado
CAN FD Industrial Network Nodes
With an integrated CAN FD controller, the DSPIC33CK128MC505T-I/PT serves as an intelligent node in industrial and automotive-style networks at data rates beyond classical CAN. The 100 MHz core handles protocol stacks, and the four DMA channels offload CAN message buffering from the CPU, sustaining high bus utilization without software bottlenecks. The 39 GPIO and UART/SPI/I2C peripherals let one chip aggregate local sensors and actuators before shipping data onto the CAN FD backbone. Use an external CAN FD transceiver such as the MCP2562FD and follow Microchip's CAN FD design guidance on bus stub length and termination (120 ohm at both ends) for reliable operation at 5 Mbps data phase.
Recomendado
Embedded Sensing with Integrated Analog
The DSPIC33CK128MC505T-I/PT integrates a 12-bit, 20-channel ADC, two 12-bit DACs, and operational amplifiers, enabling compact analog sensing nodes with minimal external components. Sensor signals - pressure bridges, current shunts, thermistor dividers - can be amplified by the internal op-amps, converted by the ADC, and thresholded by DAC-driven comparators entirely on-chip. The 100 MHz core applies DSP filtering (IIR/FIR) directly on samples using hardware MAC instructions, achieving results that would otherwise require an external DSP or FPGA. For highest conversion accuracy, reference the ADC to a clean external voltage reference and average multiple samples to suppress noise below the 12-bit LSB level.
Recomendado
High-Performance General Embedded Control
Beyond DSP-centric uses, the DSPIC33CK128MC505T-I/PT is a strong general-purpose 16-bit controller: 128 KB Flash and 16 KB RAM accommodate substantial application logic, while 39 GPIO, four external interrupts, and four DMA channels support responsive I/O handling. The C compiler toolchain (MPLAB XC16) and MPLAB X IDE provide a complete free development environment, and hardware debugging via ICSP simplifies bring-up. The device suits appliances, power tools, lighting ballasts, and industrial automation products that need more arithmetic throughput than a PIC16-class MCU. Plan Flash usage early - if your application plus a bootloader and communication stack approaches 100 KB, step up to the pin-compatible 256 KB variant instead.
Recomendado
Digital Audio and Signal Processing Front Ends
The DSP-enhanced core of the DSPIC33CK128MC505T-I/PT - single-cycle MAC, barrel shifter, hardware divide, and two 12-bit DACs - makes it effective for real-time signal processing front ends such as sensor-conditioning, active filtering, and tone generation in cost-sensitive products. The 100 MIPS budget supports multi-channel FIR/IIR filtering, and the DACs can output processed waveforms directly for actuator or audio-cue drive. UART/SPI links stream processed data to host processors. For audio-grade output quality, the on-chip 12-bit DACs are adequate for cues and alarms but not hi-fi playback; use an external codec over SPI/I2C when higher dynamic range is required.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para DSPIC33CK128MC505T-I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | DSPIC33CK256MC505T-I/PT | DSPIC33CK64MC505T-I/PT | DSPIC33CK128MC505T-E/PT | DSPIC33CK128MC505T-H/PT |
|---|---|---|---|---|---|
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Speed | dsPIC33CK, 100 MHz (100 MIPS) | dsPIC33CK, 100 MHz | dsPIC33CK, 100 MHz | dsPIC33CK, 100 MHz | dsPIC33CK, 100 MHz |
| Flash Program Memory | 128 KB | 256 KB | 64 KB | 128 KB | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Operating Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Temperature Range | -40C to +85C (I grade) | -40C to +85C | -40C to +85C | -40C to +125C (E grade) | high-temp grade (H) |
| CAN FD / ADC / DAC | Yes / 12-bit 20-ch / 2x 12-bit | Yes / same / same | Yes / same / same | Yes / same / same | Yes / same / same |
Principais diferenciais
- Double the program memory in the same footprint (vs DSPIC33CK256MC505T-I/PT)
- Extended temperature option at identical silicon (vs DSPIC33CK128MC505T-E/PT)
- Cost-down path without redesign (vs DSPIC33CK64MC505T-I/PT)
- Honest limitation: no cross-brand drop-in exists (vs STM32 / TI C2000 rivals)
Notas de projeto
Supply the DSPIC33CK128MC505T-I/PT from a regulated 3.3 V rail within 3.0-3.6 V. In motor-drive or digital-power boards, generate the controller supply with a dedicated small regulator (e.g., MCP16301) rather than tapping the gate-driver rail, and decouple each VDD pin with 100 nF ceramics placed within 2 mm of the pin plus one bulk 4.7-10 uF capacitor. Exceeding 3.6 V on any VDD or 5 V-tolerant check on GPIO is not permitted - level-shift to 5 V legacy logic externally.
For FOC current sampling, trigger the 12-bit ADC synchronously with the PWM center (center-aligned trigger) so sampling avoids switch-node transitions; this alone can remove most of the switching-noise error in shunt measurements. Route analog sense traces away from PWM/gate-drive lines, use a Kelvin connection to shunt resistors into the internal op-amp inputs, and average 4-8 samples in firmware to stay below a 12-bit LSB of noise at full 3.5 Msps-class sampling rates.
Two frequent mistakes: (1) assuming 5 V tolerance - the dsPIC33CK I/O domain is 3.0-3.6 V only; verify all external interfaces. (2) Suffix confusion - the T in the MPN means tape-and-reel, not temperature; the I is the -40C to +85C grade and E is -40C to +125C, so order E/PT for high-ambient enclosures. Also allocate Flash budget early: the CAN FD stack plus bootloader plus FOC math can approach 128 KB; the pin-compatible DSPIC33CK256MC505 avoids a redesign.
The 48-TQFP (7x7 mm, 0.5 mm pitch) layout benefits from a solid ground plane under the device and short return paths for the oscillator and CAN FD signals. Follow Microchip's programming and debugging guidance for ICSP connections (MCLR, PGD, PGC) with a series resistor on MCLR and keep these traces accessible via a header for field programming. Estimated: a 2-layer board is workable, but a 4-layer stackup with dedicated ground improves ADC noise performance noticeably in motor-control environments.
Informações de conformidade
RoHS compliant per distributor listings (full-electronic.com RoHS status field). Microchip standard commercial parts are lead-free; REACH and halogen-free status should be confirmed from Microchip's official product page.
