DSPIC33EP128MC204-I/PT - 70 MIPS 16-bit DSC | Microchip
料号： DSPIC33EP128MC204-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.68 | $5.68 |
| 10 | $5.11 | $51.10 |
| 100 | $4.55 | $455.00 |
| 500 | $4.09 | $2,045.00 |
| 1,000 | $3.67 | $3,670.00 |
DSPIC33EP128MC204-I/PT 概述
A digital signal controller combines the computational architecture of a digital signal processor (DSP) with the peripheral integration and control-oriented design of a microcontroller (MCU). Within the power-management hierarchy of embedded systems, a DSC such as the dsPIC33E family sits above general-purpose MCUs for math-intensive control loops, offering single-cycle MAC and DSP instructions, fast interrupt handling, and deterministic execution that classical microcontrollers cannot match in motor-control or digital-power applications.
Key features of the DSPIC33EP128MC204 include the 70 MIPS dsPIC33E core with integrated DSP engine, dedicated motor control PWM (MCPWM) peripherals, on-chip operational amplifiers and analog comparators, and a Peripheral Trigger Generator (PTG) for autonomous peripheral coordination. Communication coverage spans I2C, SPI, UART/USART, IrDA, LINbus, and Quadrature Encoder Interface (QEI), enabling direct connection to encoders, drivers, and host systems.
Technically, the dsPIC33EP family uses a modified Harvard architecture with a 24-bit instruction word and DSP multiply-accumulate hardware, allowing filter and transform algorithms to run at full core speed. The MCPWM module generates complementary outputs with dead-time insertion for three-phase inverter drive, while the integrated op-amps reduce external component count in current-sense chains.
Typical applications include brushless DC (BLDC) and permanent magnet synchronous motor (PMSM) control, solar inverters and digital power supplies, and industrial automation nodes requiring deterministic closed-loop control at high PWM frequencies.
Design consideration: place all VDD/VSS pairs with local 0.1 uF decoupling, and note that PGECx/PGEDx pins must be used in matched pairs for ICSP programming and debugging.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet. Pricing shown is as of 2026-09-23.
直接替换替代料： DSPIC33EP128MC204-I/PT ——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： DSPIC33EP128MC204-I/PT （相同外形与封装尺寸） ——差异在于 Package, Core, Core Architecture, Maximum CPU Speed, Program Memory Size.
快速对比工具——选择替代料号进行并排对比：
DSPIC33EP128MC204-H/PT
✅ 直接替换✓ 有现货
$3.32 / 个
查看数据手册 →DSPIC33EP128MC206-I/PT
✅ 直接替换✓ 有现货
$3.95 / 个
查看数据手册 →DSPIC33EP64MC204-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP256MC204-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP128MC204-E/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.72 / 个
查看数据手册 →DSPIC33EP64MC206-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.38 / 个
查看数据手册 →DSPIC33EP128MC204-I/PT 最大额定值与电气特性
| Core | dsPIC33E 16-bit DSC core with DSP engine |
| Max CPU Speed | 70 MIPS |
| Clock Frequency | 60 MHz |
| Flash Memory | 128 KB (43K x 24 instructions) |
| RAM | 16 KB |
| 数据总线宽度 | 16 bit |
| 封装 | 44-TQFP (10x10x1 mm) |
| 引脚数量 | 44 |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to +85C (I grade) |
| PWM | MCPWM (motor control PWM) |
| Analog Peripherals | OpAmps, Comparators |
| Peripheral Trigger Generator | Yes (PTG) |
| Communication Interfaces | I2C, SPI, UART/USART, IrDA, LINbus, QEI |
| Programming/Debug | ICSP (multiple matched PGECx/PGEDx pairs) |
| Packaging | Tray |
DSPIC33EP128MC204-I/PT 44-tqfp (10x10x1 mm) 引脚配置指南
DSPIC33EP128MC204-I/PT（44-tqfp (10x10x1 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： DSPIC33EP128MC204-I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33EP128MC204-I/PT 适用于 6 应用s: BLDC/PMSM Motor Control, Digital Power Supplies and Solar Inverters, Industrial Automation and Robotics, Embedded Sensor Fusion and DSP Signal Chains, Automotive-Adjacent Auxiliary Control, Development, Education, and Prototyping.
BLDC/PMSM Motor Control
The DSPIC33EP128MC204-I/PT is engineered for precision motor control: its MCPWM module produces complementary PWM pairs with hardware dead-time insertion for three-phase inverters, the QEI interface reads quadrature encoder feedback at full speed, and on-chip op-amps condition low-side shunt current signals without external amplifiers. In a field-oriented control (FOC) loop running on the 70 MIPS DSP core with single-cycle MAC instructions, current-loop execution stays deterministic at 10-20 kHz PWM frequencies. The 128 KB Flash accommodates sensorless observers plus a bootloader with room to spare, making this DSC a complete single-chip drive solution for industrial servo and traction applications.
推荐
Digital Power Supplies and Solar Inverters
Digital power conversion benefits directly from this DSC's deterministic 70 MIPS core and MCPWM peripheral: phase-shifted full-bridge or LLC converters require precisely delayed PWM edges, which the MCPWM module generates in hardware without CPU intervention. The Peripheral Trigger Generator (PTG) sequences ADC sampling to PWM switching events autonomously, minimizing control-loop jitter that degrades efficiency and transient response. The integrated comparators provide fast cycle-by-cycle overcurrent protection independent of software latency. In solar micro-inverters, the 128 KB Flash holds MPPT algorithms, grid-tie control, and safety firmware simultaneously, while I2C and UART handle host communication and metering interfaces.
推荐
Industrial Automation and Robotics
Factory automation nodes use the DSPIC33EP128MC204-I/PT where deterministic control meets multi-protocol connectivity. Its UART, SPI, I2C, LINbus, and IrDA interfaces cover PLC backplane links, smart-sensor buses, and stepper/servo sub-system coordination, while the QEI module tracks encoder position from multiple axes. The 16 KB RAM supports position-profile buffering and communication stacks concurrently. The PTG offloads repetitive trigger sequences - ADC sweeps, PWM updates, timing capture - from the CPU, freeing the 70 MIPS core for trajectory planning and protocol handling. The -40C to +85C industrial grade and tray packaging suit panel-mounted controller and joint-driver boards built in production volumes.
推荐
Embedded Sensor Fusion and DSP Signal Chains
The DSP engine with single-cycle multiply-accumulate makes this DSC effective for real-time digital filtering, FFT-based analysis, and sensor fusion. A 60 MHz system clock feeding the 70 MIPS core executes FIR/IIR filter chains on ADC streams with predictable latency, while the integrated op-amps pre-condition analog signals before conversion, reducing BOM cost in high-volume sensor boards. The 128 KB Flash stores coefficient tables and calibration data, and 16 KB RAM buffers spectral processing windows. Applications include vibration monitoring, acoustic analysis, and power-quality metering, where the QEI, UART, and SPI interfaces connect to encoders, host processors, and external converters in a compact 44-pin 10x10 mm footprint.
推荐
Automotive-Adjacent Auxiliary Control
While the standard -I/PT grade is not AEC-Q100 qualified, its LINbus and UART interfaces, wide -40C to +85C operation, and robust MCPWM module make it common in non-safety automotive-adjacent equipment: bench tools, EV charging-station auxiliary boards, HVAC damper and blower control, and pumps in commercial vehicles. LIN connectivity integrates directly with vehicle sub-networks, and the QEI handles position feedback in seat, throttle, and wiper actuator test rigs. Designers needing formal automotive qualification should migrate to a Microchip automotive-qualified variant within the same 44-TQFP toolchain, reusing firmware architecture and the ICSP programming infrastructure across both product lines.
推荐
Development, Education, and Prototyping
The DSPIC33EP128MC204-I/PT is widely used in teaching and prototyping because it exposes a full DSP-plus-MCU architecture in a hand-solderable 44-TQFP package. Students implement FOC motor control, digital filters, and communication stacks on the 70 MIPS core with Microchip's free compiler ecosystem and low-cost PICkit/ICSP programmers - only a matched PGECx/PGEDx pair plus all VDD/VSS connections are required for in-circuit debug. The 128 KB Flash tolerates repeated firmware iterations without wear concerns, and the tray packaging suits university lab stock and small-batch prototype boards. Design reuse is straightforward: the identical footprint accepts 64 KB, 128 KB, and 256 KB family members as projects scale.
推荐
推荐产品汇总
工程参考数据： DSPIC33EP128MC204-I/PT ——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 | DSPIC33EP128MC204-H/PT | DSPIC33EP128MC206-I/PT | DSPIC33EP64MC204-I/PT | DSPIC33EP256MC204-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 128 KB | 128 KB | 256 KB | 64 KB | 256 KB |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C (H grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| Motor Control PWM | MCPWM | MCPWM | MCPWM | MCPWM | MCPWM |
| Analog Peripherals | OpAmps, Comparators | OpAmps, Comparators | OpAmps, Comparators | OpAmps, Comparators | OpAmps, Comparators |
关键差异点
- Integrated op-amps and comparators reduce external analog BOM （对比 DSPIC33EP128MC202T-E/MM)
- 128 KB Flash headroom for FOC plus bootloader （对比 DSPIC33EP64MC204-I/PT)
- Industrial I-grade temperature at standard cost （对比 DSPIC33EP128MC204-E/PT)
设计说明
Connect every VDD and VSS pin pair, each with a local 0.1 uF ceramic decoupling capacitor placed within 2 mm of the pin, plus one bulk 4.7-10 uF capacitor near the device. The 44-TQFP 10x10 mm body has sufficient lead pitch (0.8 mm) for hand inspection, but maintain a solid ground plane on layer 2 to return the MCPWM switching currents and keep analog op-amp/comparator references quiet.
The DSPIC33EP128MC204 has multiple PGECx/PGEDx pairs for ICSP programming and debugging - they must be used as matched pairs (e.g., PGEC2 for ICSPCLK requires PGED2 for ICSPDAT), per Microchip's device documentation. Mixing pins from different pairs prevents programming. Do not load selected PGD pins with strong pull-ups that fight debugger drive, and leave MCLR available with a pull-up and programming header on every production board.
For motor-control designs, route MCPWM gate-drive outputs away from analog op-amp input traces and keep shunt-sense traces as short differential pairs routed close to the ADC pins. Trigger ADC sampling from the PTG or MCPWM module rather than free-running the ADC to avoid switching-noise aliasing into current-loop feedback. Estimated thermal margin: the TQFP-44 at typical dsPIC33EP operating currents dissipates well under 0.5 W, so a ground-pour-only thermal strategy is usually sufficient - verify against datasheet current tables at your clock/peripheral configuration.
合规信息
RoHS compliance per Microchip and distributor listings for current production. Standard industrial part; AEC-Q100-qualified variants are separate Microchip orderables. Confirm REACH and halogen-free declarations on Microchip's official compliance documentation.
