DSPIC33EP128MU506T-I/MR - 16-bit 70 MIPS DSC 128KB USB | Microchip
料号： DSPIC33EP128MU506T-I/MR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.95 | $6.95 |
| 10 | $6.32 | $63.20 |
| 100 | $5.64 | $564.00 |
| 500 | $5.18 | $2,590.00 |
| 1,000 | $4.72 | $4,720.00 |
DSPIC33EP128MU506T-I/MR 概述
A digital signal controller combines the computational architecture of a microcontroller with the math acceleration of a DSP, sitting in the system hierarchy between general-purpose MCUs and dedicated DSPs. The dsPIC33EP family pairs a 16-bit pipelined core with DSP instructions, an on-chip regulator, and rich analog and communication peripherals, making it a power-management-oriented single-chip solution.
Key features include the 70 MIPS dsPIC33E core, 128 KB Flash and up to 32 KB of on-chip RAM for USB buffering and control, full-speed USB 2.0 OTG, multiple UART/SPI/I2C ports with PPS (Peripheral Pin Select) remapping, high-speed PWM, and an internal oscillator. The industrial temperature grade (-40C to +85C) suits harsh environments.
Architecturally, the MU-series emphasizes connectivity: USB OTG operates in host, device, or dual-role modes, while the DMA controller and 16-channel PPS enable flexible pin assignment without external glue logic. The 3.0V to 3.6V supply is handled by an integrated regulator, simplifying power-tree design.
Typical applications include USB-connected industrial instruments, motor control panels with USB commissioning ports, and audio or data-logging peripherals.
Design consideration: budget Flash endurance and USB compliance testing early; the VQFN-64 thermal pad requires a solid ground pour.
This page synthesizes distributor stock data, same-family drop-in alternatives, and design notes beyond the manufacturer datasheet.
直接替换替代料： DSPIC33EP128MU506T-I/MR ——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： DSPIC33EP128MU506T-I/MR （相同外形与封装尺寸） ——差异在于 Package, Core Architecture, Maximum CPU Speed.
快速对比工具——选择替代料号进行并排对比：
DSPIC33EP256MU506T-I/MR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP64MU506-I/MR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP128MU505T-I/MR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP128MC506T-I/MR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.9 / 个
查看数据手册 →DSPIC33EP128GP506T-I/MR
✅ 直接替换✓ 有现货
$2.98 / 个
查看数据手册 →DSPIC33EP128MU506T-I/MR 最大额定值与电气特性
| Core | dsPIC33E, 16-bit DSC |
| Maximum CPU Speed | 70 MIPS |
| Program Memory Size | 128 KB (43K x 24) Flash |
| USB | USB 2.0 full-speed OTG (host/device/dual role) |
| 工作温度 | -40C to +85C (industrial, I-grade) |
| 封装 | 64-VQFN (9x9 mm), MR suffix |
| 安装类型 | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Series | dsPIC33EP128MU506 |
| Communication Interfaces | USB OTG, UART, SPI, I2C |
| Pin Remapping | PPS (Peripheral Pin Select) |
| Timers / PWM | High-speed PWM, core timers |
| Oscillator | Internal FRC + external crystal options |
DSPIC33EP128MU506T-I/MR 引脚配置
| 引脚 1 | MCLR — Master clear reset input |
| 引脚 2 | AN0/VREF+/RB0 — Analog input 0 / positive voltage reference / port B bit 0 |
| 引脚 3 | AN1/VREF-/RB1 — Analog input 1 / negative voltage reference / port B bit 1 |
| 引脚 4 | AN2/RB2 — Analog input 2 / port B bit 2 (remappable RPx) |
| 引脚 5 | AN3/RB3 — Analog input 3 / port B bit 3 (remappable RPx) |
| 引脚 6 | AN4/RB4 — Analog input 4 / port B bit 4 (remappable RPx) |
| 引脚 7 | AN5/RB5 — Analog input 5 / port B bit 5 (remappable RPx) |
| 引脚 8 | AVDD — Analog supply voltage |
| 引脚 9 | AVSS — Analog ground |
| 引脚 10 | AN6/RB6 — Analog input 6 / port B bit 6 (remappable RPx) |
| 引脚 11 | AN7/RB7 — Analog input 7 / port B bit 7 (remappable RPx) |
| 引脚 12 | AN8/RB8 — Analog input 8 / port B bit 8 (remappable RPx) |
| 引脚 13 | AN9/RB9 — Analog input 9 / port B bit 9 (remappable RPx) |
| 引脚 14 | AN10/RB10 — Analog input 10 / port B bit 10 (remappable RPx) |
| 引脚 15 | AN11/RB11 — Analog input 11 / port B bit 11 (remappable RPx) |
| 引脚 16 | AN12/RB12 — Analog input 12 / port B bit 12 (remappable RPx) |
| 引脚 17 | AN13/RB13 — Analog input 13 / port B bit 13 (remappable RPx) |
| 引脚 18 | AN14/RB14 — Analog input 14 / port B bit 14 (remappable RPx) |
| 引脚 19 | AN15/RB15 — Analog input 15 / port B bit 15 (remappable RPx) |
| 引脚 20 | VDD — Digital supply voltage |
| 引脚 21 | VSS — Digital ground |
| 引脚 22 | RC1 — Port C bit 1 (remappable RPx) |
| 引脚 23 | RC2 — Port C bit 2 (remappable RPx) |
| 引脚 24 | RC3 — Port C bit 3 (remappable RPx) |
| 引脚 25 | RC4 — Port C bit 4 (remappable RPx) |
| 引脚 26 | RC5 — Port C bit 5 (remappable RPx) |
| 引脚 27 | RC6 — Port C bit 6 (remappable RPx) |
| 引脚 28 | RC7 — Port C bit 7 (remappable RPx) |
| 引脚 29 | RC8 — Port C bit 8 (remappable RPx) |
| 引脚 30 | RC9 — Port C bit 9 (remappable RPx) |
| 引脚 31 | RC10 — Port C bit 10 (remappable RPx) |
| 引脚 32 | RC11 — Port C bit 11 (remappable RPx) |
| 引脚 33 | RC12 — Port C bit 12 (remappable RPx) |
| 引脚 34 | RC13 — Port C bit 13 (remappable RPx) |
| 引脚 35 | RC14 — Port C bit 14 (remappable RPx) |
| 引脚 36 | OSC1/CLKI — Crystal oscillator input / external clock input |
| 引脚 37 | OSC2/CLKO/RC15 — Crystal oscillator output / clock output / port C bit 15 |
| 引脚 38 | VDD — Digital supply voltage |
| 引脚 39 | VSS — Digital ground |
| 引脚 40 | RD0 — Port D bit 0 (remappable RPx) |
| 引脚 41 | RD1 — Port D bit 1 (remappable RPx) |
| 引脚 42 | RD2 — Port D bit 2 (remappable RPx) |
| 引脚 43 | RD3 — Port D bit 3 (remappable RPx) |
| 引脚 44 | RD4 — Port D bit 4 (remappable RPx) |
| 引脚 45 | RD5 — Port D bit 5 (remappable RPx) |
| 引脚 46 | RD6 — Port D bit 6 (remappable RPx) |
| 引脚 47 | RD7 — Port D bit 7 (remappable RPx) |
| 引脚 48 | RD8 — Port D bit 8 (remappable RPx) |
| 引脚 49 | RD9 — Port D bit 9 (remappable RPx) |
| 引脚 50 | RD10 — Port D bit 10 (remappable RPx) |
| 引脚 51 | RD11 — Port D bit 11 (remappable RPx) |
| 引脚 52 | RD12 — Port D bit 12 (remappable RPx) |
| 引脚 53 | RD13 — Port D bit 13 (remappable RPx) |
| 引脚 54 | RD14 — Port D bit 14 (remappable RPx) |
| 引脚 55 | RD15 — Port D bit 15 (remappable RPx) |
| 引脚 56 | RE0 — Port E bit 0 (remappable RPx) |
| 引脚 57 | RE1 — Port E bit 1 (remappable RPx) |
| 引脚 58 | RE2 — Port E bit 2 (remappable RPx) |
| 引脚 59 | VDD — Digital supply voltage |
| 引脚 60 | VSS — Digital ground |
| 引脚 61 | VCAP/VDDCORE — Internal regulator capacitor connection |
| 引脚 62 | VUSB3V3 — USB 3.3V supply for USB transceiver |
| 引脚 63 | D+ — USB differential data positive |
| 引脚 64 | D- — USB differential data negative |
典型应用
DSPIC33EP128MU506T-I/MR 适用于 6 应用s: USB-Connected Industrial Instruments, Motor Control with USB Commissioning, Data Logging Peripherals, Audio and USB Audio Class Devices, Building Automation Controllers, Portable Measurement Devices.
USB-Connected Industrial Instruments
The DSPIC33EP128MU506T-I/MR fits industrial instruments that require a USB commissioning or data port because its full-speed USB 2.0 OTG block removes the need for an external USB interface chip, saving board area and BOM cost. The 70 MIPS core and 128 KB Flash execute measurement, calibration, and protocol tasks concurrently, while Peripheral Pin Select lets designers route UART/SPI traffic without PCB respins. Typically used as a single-chip data-acquisition front end: sensors attach to remappable analog and digital pins, DMA streams samples to USB buffers, and the industrial -40C to +85C rating covers factory-floor temperature extremes. The main trade-off versus a non-USB controller is USB compliance testing, which is a one-time engineering cost.
推荐
Motor Control with USB Commissioning
Motor-drive boards benefit from the DSPIC33EP128MU506T-I/MR because the dsPIC33EP core provides DSP math for field-oriented control at 70 MIPS while the high-speed PWM module drives three-phase inverters. The added USB OTG port gives manufacturing and service teams a single-connector channel for firmware updates, parameter tuning, and fault logging. Quadrature encoder or hall inputs attach through remappable pins, and DMA keeps control-loop sampling deterministic. Compared with the MC-series sibling DSPIC33EP128MC506, the MU part trades some motor-specific peripheral emphasis for the on-chip USB PHY; for products that need both control and connectivity in one chip at 128 KB Flash, it is an efficient choice.
推荐
Data Logging Peripherals
For data loggers that offload to USB flash drives, the DSPIC33EP128MU506T-I/MR operates USB OTG in host mode, reading and writing mass-storage devices without a host PC. The 128 KB Flash holds the FAT file-system stack alongside application logic, and the RAM budget supports multi-buffer USB transfers with DMA. Remappable SPI and I2C ports connect flash, EEPROM, and sensor banks, while the internal oscillator allows crystal-free designs when timing tolerance permits. The 64-pin VQFN (9x9 mm) keeps the board compact for enclosures. Designers should budget the 3.x V supply and ensure VCAP and VUSB3V3 decoupling per the datasheet for reliable USB eye compliance across the -40C to +85C range.
推荐
Audio and USB Audio Class Devices
The DSPIC33EP128MU506T-I/MR serves USB audio accessories by combining the full-speed USB 2.0 OTG peripheral with a DSP core capable of executing filtering and gain math on streaming samples. The 70 MIPS throughput supports stereo processing with headroom, while DMA-fed USB endpoints keep isochronous transfers jitter-free. Remappable SPI/I2S-style interfaces connect audio codecs, and the 128 KB Flash stores descriptors, DSP routines, and control firmware in one image. The industrial temperature grade suits professional and installed-audio equipment. The main design consideration is managing the shared RAM between USB buffering and DSP scratch memory, which usually requires careful buffer sizing and ping-pong schemes in firmware.
推荐
Building Automation Controllers
Building automation nodes use the DSPIC33EP128MU506T-I/MR as the main controller when a USB service port simplifies installation and diagnostics. The 16-bit core at 70 MIPS runs control logic, communication stacks, and scheduling in parallel, and multiple UART, SPI, and I2C ports - each routable to nearly any pin through Peripheral Pin Select - connect sensors, displays, and sub-GHz or RS-485 links. The industrial -40C to +85C rating covers rooftop and mechanical-room environments, and the single-supply design with an internal regulator simplifies panel power. The 64-pin VQFN provides enough I/O for relay banks and sensor arrays without port expanders in typical zone-controller designs.
推荐
Portable Measurement Devices
Battery-powered handheld instruments choose the DSPIC33EP128MU506T-I/MR for its single-chip integration of USB device connectivity, analog-capable remappable I/O, and a 3.x V supply rail that matches common lithium cell regulators. The 70 MIPS core executes digital filtering on ADC streams in real time, and the 64-pin VQFN (9x9 mm) footprint keeps the PCB small enough for pen-style form factors. USB OTG lets the instrument recharge data offload sessions by plugging directly into PCs or phones with OTG adapters. Design attention should go to power-budget profiling, since USB operation raises average current; sleep and idle modes plus peripheral gating recover battery life during measurement gaps.
推荐
推荐产品汇总
工程参考数据： DSPIC33EP128MU506T-I/MR ——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 | DSPIC33EP256MU506T-I/MR | DSPIC33EP64MU506-I/MR | DSPIC33EP128MU505T-I/MR | DSPIC33EP128MC506T-I/MR | DSPIC33EP128GP506T-I/MR |
|---|---|---|---|---|---|---|
| Package | 64-VQFN (9x9 mm, MR) | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 128 KB (43K x 24) | 256 KB | 64 KB | 128 KB | 128 KB | 128 KB |
| Operating Temperature | -40C to +85C (I-grade) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Packaging | Tape & Reel | Tape & Reel | Tube/Tray | Tape & Reel | Tape & Reel | Tape & Reel |
| Peripheral Emphasis | USB connectivity | USB connectivity, more Flash | USB connectivity, cost-optimized | USB connectivity, fewer channels | Motor control | General purpose |
关键差异点
- On-chip USB 2.0 full-speed OTG （对比 DSPIC33EP128GP506T-I/MR)
- Flash headroom upgrade path without respin （对比 DSPIC33EP256MU506T-I/MR)
- Cost-optimized variant for memory-light firmware （对比 DSPIC33EP64MU506-I/MR)
设计说明
The dsPIC33EP integrates an on-chip regulator: connect the VCAP/VDDCORE pin to a low-ESR ceramic capacitor (per the datasheet-recommended value, typically around 10 uF) to ground, placed as close to the pin as possible. VUSB3V3 needs its own 3.3 V rail with decoupling when USB is used; do not back-drive it from the main 3.x V rail without a filter. Estimate: with the internal regulator handling core current, keep VDD within the datasheet 3.x V range to guarantee 70 MIPS operation across -40C to +85C.
The 64-VQFN (9x9 mm) package has a central exposed pad (thermal/electrical) that must be soldered to a ground pour with an array of vias - skipping this pad is the most common assembly defect for MR-suffix parts and causes both thermal and ground-integrity issues. For USB, keep the D+/D- pair as a 90-ohm matched differential route, short and away from the high-speed PWM traces. Follow the Microchip layout guidance in the family datasheet pin-diagram section for crystal placement.
Because this reel SKU is marked discontinued at some franchise distributors, new production should qualify DSPIC33EP256MU506T-I/MR (pin-compatible, more Flash) as a second source. Also: the MU-series uses Peripheral Pin Select for UART/SPI/PWM routing - always cross-check final RPx assignments against the family datasheet mapping tables before locking the PCB, since incorrect default pin assumptions are the top firmware bring-up failure on dsPIC33EP designs.
合规信息
Compliance data not stated in retrieved distributor listings for this exact reel SKU; verify against the Microchip product page or shipment certificate of conformance.
