DSPIC33CK128MC505T-I/M7 - 100MHz 16-bit DSC, CAN FD | Microchip
料号： DSPIC33CK128MC505T-I/M7 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.18 | $6.18 |
| 10 | $5.55 | $55.50 |
| 100 | $4.93 | $493.00 |
| 500 | $4.45 | $2,225.00 |
| 1,000 | $3.98 | $3,980.00 |
DSPIC33CK128MC505T-I/M7 概述
A digital signal controller combines the computational power of a DSP with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy of embedded systems, the dsPIC33CK family sits at the level of a 16-bit MCU/DSC optimized for real-time closed-loop control, sitting above general-purpose PIC16/PIC18 MCUs and below 32-bit application processors. DSCs are the workhorse of digital power conversion and motor control because they execute fast math-intensive control loops deterministically.
Key differentiating features include the 100 MIPS dsPIC33CK core with DSP engine, integrated operational amplifiers that reduce external analog component count, a high-speed 12-bit ADC, and a CAN FD module for automotive and industrial networking. Multiple PWM channels support advanced motor-control and digital-power topologies with dead-time insertion and complementary outputs.
On the technical side, the dsPIC33CK core uses an enhanced Harvard architecture with a single-cycle MAC and dual operand fetch, enabling filter and transform execution in real time. DMA channels offload the CPU for ADC-to-RAM streaming, and the internal oscillator (with PLL) allows full-speed 100 MHz operation without an external crystal, saving board space. An extended-temperature E/M7 variant is offered for harsh environments.
Typical applications include brushless DC and PMSM motor control (FOC), digital power supplies such as LLC and totem-pole PFC, CAN FD nodes in automotive body and powertrain domains, and industrial automation sensing nodes where on-chip op-amps condition current-shunt signals directly.
For design, budget the VCAP pin capacitor exactly as specified in the Microchip datasheet and keep the analog supply (AVDD/AVSS) plane separate from digital switching currents to preserve 12-bit ADC accuracy.
This page synthesizes distributor inventory, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single verified reference point.
直接替换替代料： DSPIC33CK128MC505T-I/M7 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DSPIC33CK128MC505T-I/M7 （相同外形与封装尺寸） ——差异在于 ADC Resolution, Core, Data Bus Width, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
DSPIC33CK256MC505T-I/M7
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33CK64MC505T-I/M7
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33CK128MC505T-E/M7
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33CK128MC505-I/M7
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33CK128MC505T-I/M7 最大额定值与电气特性
| Core | dsPIC33CK (16-bit DSC core with DSP) |
| Core Speed | 100 MHz (100 MIPS) |
| Program Memory Size | 128 KB (128K x 8) Flash |
| RAM Size | 16 KB |
| 数据总线宽度 | 16 bit |
| ADC Resolution | 12 bit |
| Integrated Op-Amps | Yes (on-chip operational amplifiers) |
| CAN Interface | CAN FD |
| PWM Channels | Yes (advanced PWM, motor control) |
| DMA Channels | 4 |
| External Interrupts | 4 |
| Oscillator Type | Internal |
| 工作温度 | -40 C to +85 C |
| 封装 / 外壳 | 48-VQFN (6x6 mm) |
| Package Dimensions | 6 x 6 x 0.9 mm |
| 安装类型 | Surface Mount |
| Packaging | Tape & Reel (T/R) |
| RoHS 状态 | Compliant |
DSPIC33CK128MC505T-I/M7 6 x 6 x 0.9 mm 引脚配置指南
DSPIC33CK128MC505T-I/M7（6 x 6 x 0.9 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： DSPIC33CK128MC505T-I/M7.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33CK128MC505T-I/M7 适用于 6 应用s: BLDC / PMSM Motor Control (FOC), Digital Power Supplies (LLC, PFC), CAN FD Automotive Nodes, Industrial Automation and Sensing, Embedded Audio and Signal Processing, Battery-Powered and Portable Equipment.
BLDC / PMSM Motor Control (FOC)
The DSPIC33CK128MC505T-I/M7 fits field-oriented motor control because its 100 MHz (100 MIPS) dsPIC33CK core executes the Clarke/Park transforms and PI current loops deterministically at high PWM frequencies, while the 12-bit ADC samples phase currents and the integrated op-amps amplify low-level shunt signals without external amplifiers. The advanced PWM module generates complementary outputs with hardware dead-time insertion, and 4 DMA channels stream ADC results into RAM so loop latency stays constant. For a typical 20-50 kHz FOC loop, the on-chip DSP MAC keeps cycle counts low, leaving margin for supervisory code. Use the internal oscillator with PLL to reach 100 MHz without a crystal, but add an external comparator path for overcurrent trip to meet safety reaction times.
推荐
Digital Power Supplies (LLC, PFC)
In digital power conversion, the DSPIC33CK128MC505T-I/M7 closes voltage and current loops for LLC resonant converters, totem-pole PFC, and synchronous buck stages. Its 100 MHz core supports control bandwidths well above audible frequency, the high-speed 12-bit ADC captures fast transients on output voltage and inductor current, and the PWM module implements phase-shift and complementary gating with dead time. On-chip op-amps condition current-shunt feedback, reducing BOM cost versus external amplifiers. Place the ADC sampling synchronized to the PWM period to avoid switching-noise artifacts, and reserve a hardware fault input to force PWM outputs into a safe state within nanoseconds during overcurrent events, independent of CPU software response.
推荐
CAN FD Automotive Nodes
The DSPIC33CK128MC505T-I/M7 serves body-control, actuator, and sensor nodes migrating from Classical CAN to CAN FD, thanks to its integrated CAN FD controller supporting 64-byte payloads and faster data-phase bit rates. The 100 MHz core handles application logic plus network stack overhead simultaneously, while the industrial -40 C to +85 C temperature range (I suffix) covers under-hood-adjacent environments; the E/M7 extended variant covers harsher zones. Because the device integrates the CAN FD peripheral on-chip, only an external CAN transceiver is needed on the bus side. Choose the 128 KB Flash version for protocol-heavy stacks, or its 256 KB sibling when adding OTA-update firmware double-banking is required.
推荐
Industrial Automation and Sensing
For industrial automation equipment, the DSPIC33CK128MC505T-I/M7 combines a DSP-grade core with rich analog integration, making it suitable for smart sensors, actuator controllers, and factory automation I/O modules. The 12-bit ADC plus on-chip op-amps digitize 4-20 mA and resistive-bridge sensor signals directly, PWM outputs drive heaters or small actuators, and CAN FD links the node to the plant network. The 100 MHz core runs filtering (IIR/FIR) and feature extraction locally, reducing host traffic. Use the 4 external interrupts for fast encoder or limit-switch response, and dedicate DMA channels to continuous ADC scanning so loop determinism is preserved even while the communication stack runs.
推荐
Embedded Audio and Signal Processing
The DSP engine of the DSPIC33CK128MC505T-I/M7 - single-cycle MAC with dual operand fetch at 100 MHz - executes FIR and IIR filters, mixing, and envelope processing in real time for cost-sensitive audio products such as electronic appliance sound, alarm generators, and simple DSP effects. The 12-bit ADC can capture microphone or line-level inputs (with the on-chip op-amp as a gain stage), and PWM-based or external DAC outputs reconstruct the signal. While 16 KB RAM limits long delay lines, it is sufficient for moderate-length filters and echo effects. For high-fidelity applications use a dedicated codec, but for embedded sound generation the integration and price of this DSC are hard to beat.
推荐
Battery-Powered and Portable Equipment
The DSPIC33CK128MC505T-I/M7 is appropriate for battery-powered tools, chargers, and portable instrumentation that still need control-loop intelligence. Its internal oscillator removes the crystal from the BOM, and low-power sleep and idle modes stretch battery life between control bursts; consult the datasheet current-consumption tables for exact figures per mode. The 12-bit ADC monitors cell voltage, current, and temperature, PWM regulates charger power stages, and CAN FD communicates with the host system in e-mobility products. Design the VCAP pin and power sequencing exactly per the datasheet to guarantee reliable startup, and use DMA-driven ADC scanning so the CPU can sleep between samples, reducing average consumption.
推荐
推荐产品汇总
工程参考数据： DSPIC33CK128MC505T-I/M7 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DSPIC33CK256MC505T-I/M7 | DSPIC33CK64MC505T-I/M7 | DSPIC33CK128MC505T-E/M7 | DSPIC33CK128MC503T-I/M5 |
|---|---|---|---|---|---|
| Package | 48-VQFN (6x6 mm) | 48-VQFN (6x6 mm) - same | 48-VQFN (6x6 mm) - same | 48-VQFN (6x6 mm) - same | 44-VQFN (M5) - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz (100 MIPS) | 100 MHz | 100 MHz | 100 MHz (64 MHz stated by Microchip USA listing - verify) | 100 MHz |
| Program Memory (Flash) | 128 KB | 256 KB | 64 KB | 128 KB | 128 KB |
| CAN FD | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (extended) | -40 C to +85 C |
| Packaging | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
关键差异点
- Double the Flash headroom option in the same footprint （对比 DSPIC33CK256MC505T-I/M7)
- Extended temperature availability on the same die （对比 DSPIC33CK128MC505T-E/M7)
- 48-pin I/O density vs the 44-pin family sibling （对比 DSPIC33CK128MC503T-I/M5)
- Lower program memory cost option （对比 DSPIC33CK64MC505T-I/M7)
设计说明
The dsPIC33CK requires the VCAP pin capacitor (typically a single capacitor to the internal 1.8V core regulator, exact value specified in the Microchip datasheet) placed within a few millimeters of the pin with a solid ground return. Omitting or undervaluing this capacitor is the most common cause of erratic startup and brown-out resets. Decouple each VDD pin with 0.1 uF ceramic, and keep AVDD fed through an RC or ferrite filter from the 3.3V rail to preserve 12-bit ADC accuracy under PWM load transients.
On the 48-VQFN 6x6 mm M7 footprint, connect the exposed thermal pad to a ground plane array of at least 9 vias to improve heat dissipation and reduce ground bounce between the digital core and analog front end. Route CAN FD and high-slew PWM traces away from the op-amp and ADC input nets; dsPIC33CK Peripheral Pin Select (PPS) allows remapping functions, so finalize pin assignment before layout freeze to minimize crossings. Keep shunt-sense routing Kelvin-connected to the op-amp input pins.
Do not copy pin maps from dsPIC33F designs: the dsPIC33CK family uses Peripheral Pin Select for many digital functions, and pin functions differ between the MC503/MC504/MC505 package variants. Verify the supply voltage range against the family datasheet before reusing a 3.3V rail design from another dsPIC generation, and confirm the oscillator configuration bits - the 100 MHz internal FRC+PLL setting differs from older 70 MHz dsPIC33 parts. For Tape & Reel (T suffix) parts, confirm reflow profile compatibility with MSL rating printed on the reel label.
合规信息
RoHS compliant per Newark product listing for DSPIC33CK128MC505T-I/M7. REACH, halogen-free and conflict-minerals status not stated in provided data.
