DSPIC33EP128MU504T-I/PT - 16-bit 70 MIPS USB DSC | Microchip
料号： DSPIC33EP128MU504T-I/PT ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.58 | $55.80 |
| 100 | $4.9 | $490.00 |
| 500 | $4.41 | $2,205.00 |
| 1,000 | $3.97 | $3,970.00 |
DSPIC33EP128MU504T-I/PT 概述
A digital signal controller combines the compute architecture of a microcontroller with the numeric acceleration of a DSP. Within the power management and embedded control hierarchy, the dsPIC33E family sits above general-purpose 8-bit MCUs and alongside 32-bit MCUs, offering single-cycle MAC, DSP engine, and rich peripherals for real-time control loops. The dsPIC33EP family is Microchip's enhanced 16-bit core generation, fabricated to run at up to 70 MIPS from a 3.0V to 3.6V supply.
Key features of the MU variant include an integrated full-speed USB 2.0 device/OTG peripheral, an 11-channel 10-bit ADC capable of 1.1 Msps, multiple UART, SPI, and I2C communication modules, output-compare and input-capture channels, and hardware support for the DSP instruction set. The 'T' suffix denotes tape-and-reel delivery for automated assembly, while the '-I' grade covers -40C to +85C industrial temperature operation.
The architecture pairs the 16-bit dsPIC core with a hardware DSP engine supporting multiply-accumulate operations, enabling deterministic execution of filtering, transformation, and control algorithms. Flash program memory of 128KB accommodates complex firmware stacks including USB class drivers, communication protocols, and control loops.
Typical applications include USB-enabled industrial instruments, power-supply and digital power control, motor control systems, and embedded consumer devices requiring USB connectivity combined with real-time signal processing.
A key design consideration is clocking: full USB speed requires the internal PLL configuration for 48 MHz USB operation, so oscillator selection and PLL register settings must be validated early in the design.
This page consolidates distributor availability, drop-in alternatives within the dsPIC33EP 44-TQFP family, and engineering design notes beyond what the manufacturer datasheet provides. Pricing and stock data referenced as of 2026-09-24.
直接替换替代料： DSPIC33EP128MU504T-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： DSPIC33EP128MU504T-I/PT （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Connectivity, Packaging, Core Processor.
快速对比工具——选择替代料号进行并排对比：
DSPIC33EP128MU504-H/PT
✅ 直接替换✓ 有现货
$4.48 / 个
查看数据手册 →DSPIC33EP128MU504-E/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP128GP504-I/PT
✅ 直接替换✓ 有现货
$4.28 / 个
查看数据手册 →DSPIC33EP128MC504-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP128MU204T-I/PT
✅ 直接替换✓ 有现货
$3.32 / 个
查看数据手册 →DSPIC33EP256MU504-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP128MU504T-I/PT 最大额定值与电气特性
| Core | dsPIC33E 16-bit |
| Program Memory Size | 128KB (43K x 24) Flash |
| Core Speed | 70 MIPS |
| 封装 | 44-TQFP (10x10 mm) |
| Connectivity | USB 2.0, UART, SPI, I2C |
| USB Peripheral | Full-Speed Device/OTG (MU variant) |
| 工作温度 | -40C to +85C (-I grade) |
| 安装类型 | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| DSP Engine | Single-cycle MAC, 16-bit DSP instructions |
| 生命周期状态 | Discontinued at DigiKey (per distributor data) |
| Description Code | IC DSC 16BIT 128KB FLASH |
DSPIC33EP128MU504T-I/PT 44-tqfp (10x10 mm) 引脚配置指南
DSPIC33EP128MU504T-I/PT（44-tqfp (10x10 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： DSPIC33EP128MU504T-I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33EP128MU504T-I/PT 适用于 6 应用s: USB-Connected Industrial Instruments, Digital Power Control, Brushed and BLDC Motor Control, Battery-Powered Portable Devices, Building Automation and HVAC Controllers, Audio Signal Processing Peripherals.
USB-Connected Industrial Instruments
The DSPIC33EP128MU504T-I/PT fits USB-enabled test and measurement instruments because it combines a 70 MIPS DSP-capable core with an integrated USB 2.0 full-speed device/OTG controller in one 44-TQFP chip, removing the need for a separate USB interface IC. In a typical instrument, the ADC samples sensor or signal-chain data while the core runs filtering and calibration algorithms, and the USB module streams results to a host PC using CDC or HID class firmware. The 128KB Flash accommodates the USB stack plus application logic without external memory. Because the USB clock needs 48 MHz from the PLL, an external crystal is required for host-compliance accuracy; the industrial -40C to +85C grade covers bench and factory-floor environments.
推荐
Digital Power Control
In switch-mode power supplies and digital power stages, control loops must update PWM duty cycles deterministically every switching cycle. The dsPIC33E core at 70 MIPS with single-cycle multiply-accumulate executes compensator math (PID or 2p2z) well within 100 kHz-class loop deadlines, while output-compare/PWM modules drive the power stage. The 10-bit ADC on the MU family provides feedback sampling, and the 44-TQFP footprint gives enough I/O for gate drive, protection, and telemetry. The USB peripheral is a bonus for configuration and firmware updates from a host. For highest ADC sampling rates in fast loops, Microchip's MC variant DSPIC33EP128MC504-I/PT in the same footprint is the motor/power-optimized alternative.
推荐
Brushed and BLDC Motor Control
The DSPIC33EP128MU504T-I/PT runs commutation and speed loops for brushed DC, BLDC, and PMSM motors using its 70 MIPS core and hardware DSP engine for field-oriented control arithmetic. Output-compare channels generate complementary PWM, and the 10-bit ADC samples phase currents and the DC bus; input-capture modules decode hall or encoder feedback. The 44-TQFP (10x10 mm) package provides sufficient PWM, communication, and protection I/O while remaining hand-layout friendly. The USB module allows in-field parameter tuning and diagnostics from a PC tool, which is a differentiator over the GP/MC variants. The industrial -40C to +85C temperature grade suits factory automation cabinets, and 128KB Flash holds an FOC library plus communication stack.
推荐
Battery-Powered Portable Devices
Portable instruments, data loggers, and handheld devices benefit from the MU504's integration: one 3.0V-3.6V-class 16-bit DSC provides computing, 10-bit ADC acquisition, multiple serial ports, and USB for charging/docking communication, reducing board area in the 10x10 mm TQFP. The DSP engine processes sensor data (acceleration, audio, bio-signals) with single-cycle MAC efficiency, extending battery life versus software-emulated math on slower cores. Firmware can gate clocks and use idle/sleep modes between samples; USB OTG allows the device to act as host or peripheral during docking. Designs must budget the external crystal needed for USB accuracy and use the tape-and-reel (-T) ordering for production assembly lines.
推荐
Building Automation and HVAC Controllers
Building automation nodes use the DSPIC33EP128MU504T-I/PT as the main controller where its multiple UART, SPI, and I2C modules interface with sensors, displays, and field buses, while the 70 MIPS core runs control algorithms for dampers, valves, and fan speed. The USB peripheral provides a service port for commissioning and firmware updates, a common requirement in HVAC controllers. The 128KB Flash supports a protocol stack plus scheduling logic, and the industrial -40C to +85C rating tolerates rooftop and mechanical-room environments. The 44-TQFP package balances I/O count against a compact 10x10 mm footprint suitable for mid-density controller PCBs, and the tape-and-reel format supports contract-manufactured volumes.
推荐
Audio Signal Processing Peripherals
The dsPIC33E DSP engine with single-cycle MAC executes audio filters, AGC, and tone-control algorithms at 70 MIPS, making the MU504 suitable for embedded audio accessories, intercoms, and effect processing at modest sample rates. SPI or I2C connects to audio codecs, and the 10-bit ADC handles microphone or control inputs. The USB 2.0 full-speed module implements USB Audio-class-style streaming to a PC host, which is why the MU variant is preferred over GP/MC same-footprint parts. The 128KB Flash holds the DSP routines plus a USB stack; the -40C to +85C industrial grade covers commercial and light-industrial deployments. Verify USB clock accuracy with an external crystal for host compliance.
推荐
推荐产品汇总
工程参考数据： DSPIC33EP128MU504T-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 | DSPIC33EP128MU504-H/PT | DSPIC33EP128MU504-E/PT | DSPIC33EP128GP504-I/PT | DSPIC33EP128MC504-I/PT | DSPIC33EP128MU204T-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 | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128KB (43K x 24) | 128KB (43K x 24) | 128KB (43K x 24) | 128KB (43K x 24) | 128KB (43K x 24) | 128KB (43K x 24) |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| USB Peripheral | Yes (full-speed device/OTG) | Yes | Yes | No | No | Yes |
| Temperature Grade | -40C to +85C (Industrial, -I) | H-grade designation | -40C to +125C (Extended, -E) | -40C to +85C (Industrial, -I) | -40C to +85C (Industrial, -I) | -40C to +85C (Industrial, -I) |
| Packaging | Tape & Reel (T) | Tray or Tape & Reel (/PT) | Tape & Reel (/PT) | Tray or Tape & Reel (/PT) | Tray or Tape & Reel (/PT) | Tape & Reel (T) |
关键差异点
- Integrated USB 2.0 full-speed device/OTG （对比 DSPIC33EP128GP504-I/PT)
- Industrial temperature range with production packaging （对比 DSPIC33EP128MU504-E/PT)
- Trade-off: no motor-control-optimized ADC （对比 DSPIC33EP128MC504-I/PT)
设计说明
Power the DSPIC33EP128MU504T-I/PT from a clean 3.3V rail within the dsPIC33E family supply range, with 0.1 uF ceramic decoupling at each VDD/VSS pair plus bulk capacitance near the chip. All VDD and AVDD pins must be connected; AVDD should be filtered (ferrite bead plus 0.1 uF and 1 uF) to preserve ADC accuracy. USB VBUS sensing requires a resistor divider on the VBUS pin when operating as a device.
USB compliance demands clock accuracy that the internal FRC oscillator cannot sustain over temperature and lifetime. Use an external crystal with the on-chip PLL configured for the 70 MIPS core clock and the 48 MHz USB clock simultaneously. Validate PLL divider settings against the Family Reference Manual equations, and confirm brown-out and configuration-bit settings (POSCMD, FNOSC) match your hardware before first flash - incorrect oscillator config bits are the most common bring-up failure on dsPIC33EP designs.
For the 44-TQFP (10x10 mm) layout, place the crystal within a few millimeters of the OSCO/OSCI pins with short traces and guard with ground. Route the USB D+/D- pair as a 90-ohm differential pair with length matching and avoid routing under the crystal or switching regulator. Expose solid ground plane beneath the part; TQFP thermal pad is not present but good ground stitching around VSS pins reduces EMI. Program the ICSP (MCLR/PGD/PGC) header on every design for in-circuit debugging with PICkit or ICD tools.
Because this part is discontinued at DigiKey as of 2026-09-24, plan end-of-life strategy now: qualify DSPIC33EP128MU504-H/PT (same footprint) as the primary alternate and lifetime-buy remaining stock if the program runs beyond 2027. Do not substitute the GP504/MC504 variants in designs that use the USB peripheral - the silicon lacks the USB module and firmware will fail.
合规信息
Compliance certificates were not included in the retrieved web data; request RoHS/REACH documentation from Microchip or the distributor with each order. -I suffix indicates industrial temperature grade lead-free-assembly TQFP per Microchip part numbering conventions.
