DSPIC33EP128MU504-H/PT - 16-bit DSC, 128KB Flash, USB, CAN | Microchip
料号： DSPIC33EP128MU504-H/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.9 | $6.90 |
| 10 | $6.21 | $62.10 |
| 100 | $5.52 | $552.00 |
| 500 | $4.97 | $2,485.00 |
| 1,000 | $4.48 | $4,480.00 |
DSPIC33EP128MU504-H/PT 概述
A digital signal controller is a hybrid device that merges the computational throughput and math acceleration of a digital signal processor with the peripherals, interrupt structure and ease of use of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC sits between general-purpose MCUs and application-specific DSPs, providing deterministic real-time control plus signal-processing capability in a single chip.
Key features include USB 2.0 full-speed device and On-The-Go (OTG) support, a CAN 2.0B module, a 12-bit ADC with up to 500 ksps throughput, three integrated operational amplifiers, and multiple Motor Control and Captured Compare PWM (MCCP/SCCP) modules. Quadrature Encoder Interface (QEI) and Programmable Timing Generator (PTG) blocks offload timing-critical tasks from the CPU.
The dsPIC33EP architecture executes most instructions in a single cycle, with a 16-bit modified Harvard bus, DSP multiply-accumulate (MAC) instructions, and hardware division support, making closed-loop control algorithms efficient and deterministic.
Typical applications include digital power supplies and power factor correction, brushless DC and PMSM motor control with sensorless FOC, USB-connected instrumentation and industrial sensors, and CAN-based automotive or industrial networking nodes. The extended -40C to +150C temperature rating suits underhood and high-heat industrial environments.
Design consideration: the maximum core supply is 3.6V; ensure the 3.3V rail is well regulated and decouple VDD/VDDCORE with low-ESR ceramics per the manufacturer datasheet.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： DSPIC33EP128MU504-H/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： DSPIC33EP128MU504-H/PT （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Packaging, Core Architecture, Flash Program Memory.
快速对比工具——选择替代料号进行并排对比：
DSPIC33EP128MU504-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33EP128MU504-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP256MU504-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP64MU504-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 ⚠️ 规格未核验✓ 有现货
$3.32 / 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）
DSPIC33EP128MU504-H/PT 最大额定值与电气特性
| Core Processor | dsPIC33E 16-bit DSC |
| Core Size | 16-bit |
| Maximum Speed | 70 MIPS |
| Flash Program Memory | 128 KB |
| RAM | 16 KB |
| EEPROM / Data Flash | 1 KB |
| Connectivity | USB OTG, CAN 2.0B, UART, SPI, I2C |
| ADC Resolution | 12-bit |
| Integrated Op-Amps | 3 |
| PWM Modules | MCCP / SCCP (Motor Control PWM) |
| QEI (Quadrature Encoder Interface) | Yes |
| PTG (Programmable Timing Generator) | Yes |
| 电源电压 | 3.0 V to 3.6 V |
| 工作温度 | -40C to +150C |
| 封装 | 44-pin TQFP (PT) |
| 安装类型 | Surface Mount |
| Packaging | Tray |
DSPIC33EP128MU504-H/PT 44-pin tqfp (pt) 引脚配置指南
DSPIC33EP128MU504-H/PT（44-pin tqfp (pt) 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： DSPIC33EP128MU504-H/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33EP128MU504-H/PT 适用于 6 应用s: Digital Power Supplies and PFC, Brushless DC / PMSM Motor Control, USB-Connected Instrumentation and Data Loggers, CAN Networking Nodes for Industrial and Automotive Systems, Embedded Industrial Sensing and IoT Gateways, High-Temperature (150C) Embedded Control.
Digital Power Supplies and PFC
The DSPIC33EP128MU504-H/PT is well suited to digitally controlled AC-DC and DC-DC converters because its 70 MIPS core closes current loops at 100-500 kHz switching frequencies with single-cycle MAC instructions for PID and compensator math. The 12-bit ADC samples voltages and currents with sub-microsecond latency, while MCCP/SCCP PWM modules generate complementary outputs with dead-time insertion in hardware, offloading the CPU. The three integrated op-amps buffer current-shunt signals without an external analog front end, reducing BOM cost. Its +150C rating allows placement near hot power stages. Trade-off: unlike dedicated digital-power ICs, firmware development effort is higher, but the dsPIC33EP offers full control-loop flexibility and Microchip's Digital Compensator libraries accelerate the work.
推荐
Brushless DC / PMSM Motor Control
Sensorless FOC for BLDC and PMSM motors is a flagship use of the dsPIC33EP 'MU' family. The 70 MIPS core executes Clarke/Park transforms and PI current loops at 10-20 kHz PWM frequencies, while hardware QEI interfaces encoders for servo-class positioning. The 12-bit ADC is synchronized to the PWM period for low-noise phase-current sampling, and the three on-chip op-amps amplify shunt signals directly. MCCP modules produce three-phase complementary drive with hardware dead time, eliminating CPU jitter. With USB and CAN on-chip, the same controller doubles as a fieldbus node for industrial drives. For pure motor-control designs without USB, DSPIC33EP128MC504-I/PT offers the same capability set minus USB at lower cost.
推荐
USB-Connected Instrumentation and Data Loggers
The integrated USB 2.0 full-speed device/OTG module makes this DSC a compact front end for bench instruments, sensors and loggers that plug into a PC without a separate USB interface chip. Analog signals route through the three op-amps and the 12-bit ADC at up to 500 ksps; the 70 MIPS core applies DSP filtering (IIR/FIR) before streaming data over USB CDC/HID classes supported by Microchip's Harmony stack. The 1KB data flash stores calibration constants across power cycles. With the -H grade rated to +150C, the same design works in high-temperature enclosures. Trade-off: 12 Mbps full-speed caps streaming bandwidth, so for high-rate acquisition, buffer on-chip in the 16KB RAM and batch-transfer blocks.
推荐
CAN Networking Nodes for Industrial and Automotive Systems
The on-chip CAN 2.0B controller with hardware message buffers lets the DSPIC33EP128MU504-H/PT serve as a smart node on industrial fieldbus or vehicle networks. Combined with the 70 MIPS core, nodes can run local control loops (using MCCP PWM and the 12-bit ADC) while handling J1939- or CANopen-style communication stacks stored in 128KB flash. The -H temperature rating of -40C to +150C covers underhood and engine-compartment zones that defeat consumer-grade MCUs. QEI supports encoder-based local sensing such as throttle-position or actuator feedback. For designs needing dual CAN buses, the dsPIC33EP128GM304T-I/PT is the recommended same-family upgrade.
推荐
Embedded Industrial Sensing and IoT Gateways
Systems that aggregate multiple sensors and report over wired networks fit this part well: UART, SPI, I2C, USB and CAN run concurrently, driven by Peripheral Pin Select (PPS) routing for flexible board layout. The PTG (Programmable Timing Generator) sequences ADC sampling and I/O events autonomously, keeping timing deterministic while the CPU handles protocol stacks. The 1KB data flash stores calibration and device-identity data without an external EEPROM. The 3.0V to 3.6V single-supply operation simplifies 3.3V power trees. Against a generic 32-bit MCU, this part wins where hard real-time control and analog integration matter; where heavy RTOS and graphics are needed, a Cortex-M class device is the better fit.
推荐
High-Temperature (150C) Embedded Control
The -H suffix qualifies operation from -40C to +150C, placing this part among a limited set of commodity-price controllers usable in underhood electronics, down-hole tools, industrial ovens and aerospace ground equipment. At these temperatures, external electrolytic capacitors and discrete op-amps are reliability bottlenecks, so integrating the three op-amps, the 12-bit ADC and the PWM engine on-die meaningfully improves system mean time between failures. Design caution: flash write endurance and data retention derate near +150C, so minimize in-application flash and data-flash writes and consult the manufacturer datasheet derating tables; prefer external serial EEPROM rated for high temperature when frequent parameter logging is required.
推荐
推荐产品汇总
工程参考数据： DSPIC33EP128MU504-H/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-E/PT | DSPIC33EP256MU504-I/PT | DSPIC33EP128MC504-I/PT |
|---|---|---|---|---|
| Package | 44-pin TQFP (PT) | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Speed | dsPIC33E 16-bit, 70 MIPS | dsPIC33E 16-bit, 70 MIPS | dsPIC33E 16-bit, 70 MIPS | dsPIC33E 16-bit, 70 MIPS |
| Flash | 128 KB | 128 KB | 256 KB | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB |
| USB | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | No USB |
| CAN 2.0B | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +150C (-H) | -40C to +125C | -40C to +85C | -40C to +85C |
关键差异点
- Extended +150C temperature rating （对比 DSPIC33EP128MU504-E/PT)
- USB OTG plus CAN on one 44-pin chip （对比 DSPIC33EP128MC504-I/PT)
- Migration headroom in the same footprint （对比 DSPIC33EP256MU504-I/PT)
设计说明
The dsPIC33EP128MU504-H/PT runs from a single 3.0V to 3.6V supply with an internal 1.8V core regulator on VDDCORE. Decouple VDD, VDDCORE and AVDD each with 0.1uF ceramic capacitors placed within 2 mm of the pins, plus one 4.7uF-10uF bulk capacitor per supply domain. Estimated: at 70 MIPS the core current is typically in the tens of mA range, so a 3.3V/100mA rail headroom is sufficient, but size the regulator for I/O transient current if driving LEDs or MOSFET drivers from GPIOs.
For USB full-speed compliance, the USB D+/D- pair must be routed as a 90-ohm matched-length differential pair with series resistors per the manufacturer datasheet reference design, and the 48 MHz USB clock derived from a crystal-driven PLL - do not substitute the internal FRC oscillator for USB applications. For CAN, place the transceiver within 2 cm of the CANx pins and keep the TXD/RXD traces short to limit ringing. Separate the analog ground region under AVDD/AVSS from PWM switch-node noise using a solid ground plane.
Three frequent mistakes with this family: (1) forgetting to enable the internal regulator configuration bit, causing brown-out at high MIPS; (2) attempting USB clocking from the internal FRC instead of a crystal with PLL, which fails USB enumeration jitter requirements; (3) ignoring Peripheral Pin Select (PPS) mapping - UART/SPI/I2C pins must be assigned in software at boot or the peripherals stay disconnected. Also note flash/data-flash write endurance derates near the +150C maximum, so minimize in-application writes in high-temperature designs.
The 44-pin TQFP (PT) dissipates little power in typical DSC operation, but at +150C ambient the junction margin is tight. Estimated: with typical core plus I/O dissipation under 250 mW and theta_JA on the order of 50 C/W for TQFP-44 on a standard 4-layer board, junction rise is roughly 12 C, leaving adequate margin at +150C ambient. Avoid routing high-current traces directly under the die and add thermal vias to ground plane if GPIO loads exceed datasheet sink/source recommendations.
合规信息
RoHS/REACH status not stated in the provided distributor snippets; verify on the Microchip product page before procurement. -H temperature grade applies to device qualification, not AEC-Q100 automotive certification.
