DSPIC33EP128MU202-I/MM - 16-bit DSC 128KB Flash QFN | Microchip
料号： DSPIC33EP128MU202-I/MM ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.85 | $5.85 |
| 10 | $5.35 | $53.50 |
| 100 | $4.82 | $482.00 |
| 500 | $4.45 | $2,225.00 |
| 1,000 | $4.1 | $4,100.00 |
DSPIC33EP128MU202-I/MM 概述
A digital signal controller is a hybrid between a microcontroller (MCU) and a digital signal processor (DSP): it executes general-purpose embedded control code like a PIC or AVR MCU while also providing hardware multiply-accumulate, DSP instructions, and high-speed peripherals for signal processing. In the power management hierarchy, a DSC sits between a standard MCU and a dedicated DSP, making it the device class of choice for digital power conversion, motor control, and sensor processing.
Key features of the DSPIC33EP128MU202 include the 128 KB self-programming Flash with ECC, 16 KB of on-chip SRAM, up to 70 MIPS performance at 3.3 V, and a 12-bit ADC with up to 1.1 Msps throughput that supports simultaneous multi-channel sampling for digital power feedback loops. The MU (USB) variant adds a full-speed USB 2.0 device peripheral, distinguishing it from the MC motor-control variant of the same die.
Architecturally, the dsPIC33EP core uses a modified Harvard pipeline with a 16-bit ALU, a 40-bit wide accumulator, and single-cycle MAC hardware. Peripherals typically include UART, SPI, I2C, multiple 16-bit timers, output compare/input capture channels, and Motor Control PWM modules, with Peripheral Pin Select (PPS) allowing flexible digital I/O remapping for layout optimization.
Typical applications include USB-connected industrial sensors, digital power supplies, brushless DC (BLDC) motor control, audio and biometric signal processing, and general embedded control where DSP math meets USB connectivity.
A key design consideration: the -I suffix denotes the industrial temperature range of -40C to +85C; for -40C to +125C environments, use the -E (extended) variant instead. The QFN-28 thermal pad should be soldered to a grounded copper pour for best thermal and electrical performance.
This page synthesizes distributor inventory data, same-package drop-in alternatives within the dsPIC33EP family, and practical design notes not found on the manufacturer product page.
直接替换替代料： DSPIC33EP128MU202-I/MM ——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： DSPIC33EP128MU202-I/MM （相同外形与封装尺寸） ——差异在于 Operating Temperature, Package, Core, Program Memory (Flash), Communication Interfaces.
快速对比工具——选择替代料号进行并排对比：
DSPIC33EP128MU202-E/MM
✅ 直接替换✓ 有现货
$3.92 / 个
查看数据手册 →DSPIC33EP128MC202-I/MM
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.9 / 个
查看数据手册 →DSPIC33EP256MU202-I/MM
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP64MU202-I/MM
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP32MU202-I/MM
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP128MC202T-E/MM
✅ 直接替换✓ 有现货
$3.41 / 个
查看数据手册 →DSPIC33EP128MU202-I/MM 最大额定值与电气特性
| Core | 16-bit dsPIC33E DSC core |
| Program Memory (Flash) | 128 KB |
| RAM | 16 KB |
| ADC Resolution | 12-bit |
| 封装 | QFN-28 (MM) |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to +85C (industrial, I suffix) |
| MSL 等级 | 3 (168 Hours) |
| Lead Free Status | Lead free |
| RoHS 状态 | RoHS Compliant |
DSPIC33EP128MU202-I/MM qfn-28 (mm) 引脚配置指南
DSPIC33EP128MU202-I/MM（qfn-28 (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： DSPIC33EP128MU202-I/MM.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33EP128MU202-I/MM 适用于 6 应用s: USB-Connected Industrial Sensing, Digital Power Conversion, BLDC / PMSM Motor Control, Audio and Biometric Signal Processing, Embedded Control with Flexible I/O, Portable and Battery-Powered USB Devices.
USB-Connected Industrial Sensing
The DSPIC33EP128MU202-I/MM fits USB-connected industrial sensor nodes because it combines a 12-bit ADC with a full-speed USB 2.0 device peripheral on one chip, eliminating an external USB interface IC. The ADC digitizes analog transducer signals directly, while the DSP multiply-accumulate engine applies digital filtering (IIR/FIR) before data is streamed over USB at up to 12 Mbps. The industrial -40C to +85C rating suits factory-floor enclosures. Design consideration: USB adds firmware complexity (enumeration stack); budget roughly 8-16 KB of the 128 KB Flash for the USB stack, leaving ample room for the application and any bootloader.
推荐
Digital Power Conversion
In digital power supplies (LLC converters, PFC stages, and DC-DC modules), the DSPIC33EP128MU202-I/MM closes fast feedback loops using its 12-bit ADC sampling analog error signals and its PWM peripherals generating switching waveforms. The 16-bit DSP core with single-cycle MAC executes control-law computations such as 2p2z compensators within one switching period at hundreds of kHz. The industrial temperature range covers power-supply internal ambient conditions. Trade-off: the MU variant's USB is usually unused in pure power designs; the pin-compatible DSPIC33EP128MC202-I/MM with motor PWM may suit the loop topology better, on the same QFN-28 footprint.
推荐
BLDC / PMSM Motor Control
The DSPIC33EP128MU202-I/MM supports field-oriented control (FOC) of brushless DC and permanent-magnet synchronous motors: the 12-bit ADC samples phase currents and bus voltage, the DSP core runs Clarke/Park transforms and PI current loops at up to 70 MIPS, and PWM modules drive the inverter gate signals with dead-time control. For motor-specific hardware (complementary PWM with dead-band, quadrature encoder interface), the pin-compatible DSPIC33EP128MC202-I/MM variant is preferable, sharing the identical QFN-28 footprint so one PCB supports both USB (MU) and motor (MC) builds. Always verify current-sense amplifier bandwidth against ADC sampling instants.
推荐
Audio and Biometric Signal Processing
The dsPIC33E core's 40-bit accumulator and single-cycle MAC make the DSPIC33EP128MU202-I/MM well suited to embedded audio filtering, biomedical signal conditioning (ECG/EMG front-end post-processing), and acoustic analysis. The 12-bit ADC captures conditioned sensor signals at high sampling rate, and DSP library routines provide FFT, FIR, and IIR primitives optimized for this architecture. The 16 KB RAM accommodates moderate-size buffer chains, while 128 KB Flash stores algorithm tables and calibration data. For higher-resolution audio conversion, pair the internal processing with an external 16/24-bit codec over SPI or I2C rather than relying on the 12-bit internal ADC.
推荐
Embedded Control with Flexible I/O
As a general-purpose 16-bit controller, the DSPIC33EP128MU202-I/MM handles automation sub-systems, lighting control, battery management, and instrumentation front-ends. Peripheral Pin Select (PPS) lets firmware remap UART, SPI, I2C, and capture/compare functions across available I/O pins, which shortens PCB routing and enables one board design to serve multiple product variants. The 128 KB Flash with self-programming supports field firmware updates via USB or UART bootloader. Design tip: reserve MCLR, PGD, and PGC pads for ICSP access (MPLAB SNAP or PICkit 4) so production programming and in-circuit debugging never require unplugging connectors.
推荐
Portable and Battery-Powered USB Devices
Handheld instruments, data loggers, and USB accessory devices benefit from the DSPIC33EP128MU202-I/MM's integration: one QFN-28 chip provides computation, 12-bit analog acquisition, and USB device connectivity, cutting BOM count and board area. At 3.3 V single-supply operation, it interfaces directly with USB VBUS through proper regulation. Power-management features such as doze, idle, and sleep modes reduce average current in battery designs, with wake sources on peripheral activity. Trade-off: the dsPIC33E family is not the lowest-quiescent-current choice for coin-cell designs; verify sleep-mode current against your battery budget before committing to the architecture.
推荐
推荐产品汇总
工程参考数据： DSPIC33EP128MU202-I/MM ——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 | DSPIC33EP128MU202-E/MM | DSPIC33EP128MC202-I/MM | DSPIC33EP256MU202-I/MM | DSPIC33EP64MU202-I/MM |
|---|---|---|---|---|---|
| Package | QFN-28 (MM) | QFN-28 (MM) - same | QFN-28 (MM) - same | QFN-28 (MM) - same | QFN-28 (MM) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB | 128 KB | 256 KB | 64 KB |
| USB Device Peripheral | Yes (full-speed) | Yes (full-speed) | No (motor PWM instead) | Yes (full-speed) | Yes (full-speed) |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
| Temperature Range | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| RoHS / Lead-Free | RoHS compliant, lead free | RoHS compliant, lead free | RoHS compliant, lead free | RoHS compliant, lead free | RoHS compliant, lead free |
关键差异点
- Integrated full-speed USB 2.0 device peripheral （对比 DSPIC33EP128MC202-I/MM)
- Extended temperature option in identical footprint （对比 DSPIC33EP128MU202-E/MM)
- Flash density scalability without redesign （对比 DSPIC33EP64MU202-I/MM / DSPIC33EP256MU202-I/MM)
设计说明
The QFN-28 (MM) package has a thermal pad on the underside that must be soldered to a grounded copper pour. Use a 3x3 via array under the pad to tie the pour to internal ground planes; this improves both thermal dissipation and signal-integrity grounding for the ADC references. Per IPC-QFN assembly practice, print stencil apertures at approximately 50-70% pad coverage to avoid voiding and solder bridging between the 0.5 mm pitch perimeter pads.
Reserve MCLR, PGD, and PGC routing to a programming header (or test pads) for ICSP with MPLAB SNAP or PICkit 4. Designs that load MCLR with a pull-down or drive it with external circuitry can lock out programming. Also note the moisture sensitivity: MSL 3 (168 hours) means floor-life after dew buildup is limited - reflow or bake parts per J-STD-033 if the dry-pack bag has been open longer than one week.
Decouple each VDD pin with a 0.1 uF ceramic capacitor placed within 2 mm of the pin, plus one bulk 4.7-10 uF capacitor near the device. Keep the analog supply path clean: if ADC accuracy is critical, isolate AVDD with an RC filter or ferrite bead from digital VDD. Estimated: at 70 MIPS the core current is on the order of tens of mA - size your 3.3 V regulator (for example an MCP1700-class LDO for battery designs) accordingly, and verify with the family datasheet current-versus-MIPS table.
合规信息
Distributor listings (Kynix and others) report Lead free / RoHS Compliant for the DSPIC33EP128MU202-I/MM. REACH, halogen-free, and conflict-minerals status were not stated in the provided data.
