DSPIC33EP128MC504T-I/PT - 16-bit 70 MIPS DSC 128KB Flash | Microchip
料号： DSPIC33EP128MC504T-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.62 | $5.62 |
| 10 | $5.08 | $50.80 |
| 100 | $4.51 | $451.00 |
| 500 | $4.12 | $2,060.00 |
| 1,000 | $3.78 | $3,780.00 |
DSPIC33EP128MC504T-I/PT 概述
A digital signal controller combines the compute throughput of a DSP with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy, the DSC sits above a basic MCU: it executes single-cycle MAC and DSP instructions while retaining deterministic interrupt handling, making it the preferred controller class for closed-loop motor control and digitally controlled power conversion where a generic MCU lacks the multiply-accumulate throughput.
Key features of this device include the 70 MIPS dsPIC33E core with integrated DSP engine, high-speed PWM modules tailored for motor control, and advanced analog integration from the dsPIC33E family platform. Program memory is Flash-based (43K x 24 instructions), enabling field reprogramming, and the extended on-chip peripheral set supports CAN, UART, SPI, and I2C communication typical of industrial nodes.
Architecturally, the dsPIC33E core uses a modified Harvard pipeline with a 24-bit instruction word and dual operand fetch, allowing single-cycle DSP multiply-accumulate operations. The high-speed PWM hardware supports complementary outputs, dead-time insertion, and fault protection - the critical building blocks of field-oriented control (FOC) and sensorless brushless DC drives.
Typical applications include precision BLDC/PMSM motor control for industrial drives and pumps, digitally controlled switched-mode power supplies and solar micro-inverters, and embedded control systems requiring DSP-level filtering. The 44-pin TQFP with up to 35 general-purpose I/O provides sufficient pins for gate drives, current-sense feedback, and communication in compact layouts.
Design consideration: this device runs at 3.3V only; level-shift any 5V peripheral interfaces, and budget decoupling (0.1 uF per VDD pin plus bulk capacitance) close to the package. The /T suffix denotes Tape-and-Reel delivery; the /I suffix denotes the industrial temperature grade.
This page synthesizes distributor availability data, same-family drop-in alternatives, and practical design notes not found in the standard Microchip product page.
直接替换替代料： DSPIC33EP128MC504T-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： DSPIC33EP128MC504T-I/PT （相同外形与封装尺寸） ——差异在于 Operating Temperature, Packaging, Maximum CPU Speed, Package, RoHS Status.
快速对比工具——选择替代料号进行并排对比：
DSPIC33EP128MC504T-E/PT
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →DSPIC33EP64MC504T-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.5 / 个
查看数据手册 →DSPIC33EP256MC504T-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP128MC504T-I/TL
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33EP128GM304T-I/PT
✅ 直接替换✓ 有现货
$3.95 / 个
查看数据手册 →DSPIC33EP128GP504T-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP128MC504T-I/PT 最大额定值与电气特性
| Core Architecture | 16-bit dsPIC33E DSC core |
| Maximum CPU Speed | 70 MIPS |
| Program Memory (Flash) | 128 KB (43K x 24) |
| RAM | 8 KB |
| 电源电压 | 3.3 V |
| 封装 | 44-TQFP (10x10 mm) |
| 工作温度 | -40C to +85C (I grade) |
| 安装类型 | Surface Mount |
| Packaging | Tape & Reel (/T suffix) |
| Series | dsPIC33EP 128MC (Motor Control) |
| Peripherals | High-Speed PWM, advanced analog (per family datasheet) |
| Target Application | Precision motor control |
| AEC-Q100 Qualification | Not qualified (-E/PT variant is AEC-Q100 qualified) |
| Communication Interfaces | CAN, UART, SPI, I2C (dsPIC33EP family peripherals) |
DSPIC33EP128MC504T-I/PT 44-tqfp (10x10 mm) 引脚配置指南
DSPIC33EP128MC504T-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： DSPIC33EP128MC504T-I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33EP128MC504T-I/PT 适用于 6 应用s: Brushless DC (BLDC) and PMSM Motor Control, Digitally Controlled Power Supplies and Inverters, Industrial Automation and PLC I/O Nodes, Sensorless Motor Drives with Advanced Estimation, Automotive Auxiliary Motor Control (E-variant path), Audio Signal Processing and Embedded DSP Applications.
Brushless DC (BLDC) and PMSM Motor Control
The DSPIC33EP128MC504T-I/PT is architected specifically for precision motor control: its 70 MIPS DSP core executes single-cycle MAC instructions that sustain field-oriented control (FOC) current loops at 10-20 kHz bandwidth, while the high-speed motor-control PWM module generates complementary gate-drive signals with programmable dead-time and cycle-by-cycle current limiting. Sensor inputs from Hall sensors or quadrature encoders feed the QEI peripheral directly, and the integrated analog supports shunt-based current sensing. Typical uses include industrial drives, HVAC blowers, pumps, and e-bike controllers. Placed at the heart of the inverter board in the 44-TQFP footprint, it consolidates control, PWM generation, and feedback processing in one 3.3V device, replacing separate MCU-plus-DSP two-chip solutions and reducing loop latency between current sampling and PWM update.
推荐
Digitally Controlled Power Supplies and Inverters
In digitally controlled SMPS, LLC converters, and solar micro-inverters, the DSPIC33EP128MC504T-I/PT closes the voltage/current feedback loop in firmware. The 70 MIPS core with DSP instructions computes compensator equations (2P2Z or 3P3Z filters) fast enough for switching frequencies up to several hundred kHz, and the high-speed PWM supports phase-shifted, complementary, and push-pull topologies with sub-nanosecond-resolution dead-time control. The 128 KB Flash accommodates soft-start, fault handling, and communication protocol stacks alongside the control law. Compared to analog control ICs, this DSC enables adaptive inrush management, firmware-updatable efficiency optimization, and telemetry over UART/CAN. Designers should budget CPU load carefully: at 70 MIPS with interrupts per PWM cycle, the digital power loop typically consumes 30-50% of total throughput, leaving headroom for housekeeping tasks and housekeeping communication.
推荐
Industrial Automation and PLC I/O Nodes
The DSPIC33EP128MC504T-I/PT serves as a smart industrial node combining local control with fieldbus connectivity. Its peripheral set supports CAN for CANopen/DeviceNet-style networks, multiple UARTs for Modbus RTU, and SPI/I2C for local sensor expansion. The -40C to +85C industrial temperature rating and 3.3V operation fit standard PLC backplane environments, while the 128 KB Flash stores protocol stacks plus application logic. The DSP capability adds value where nodes perform onboard signal conditioning - RMS current computation, FFT-based vibration analysis, or filter-based analog scaling - which a standard 16-bit MCU cannot execute in real time. In a 44-TQFP 10x10 mm footprint with 35 GPIO, one device typically replaces separate communication and measurement microcontrollers, simplifying BOM and firmware maintenance across a product family.
推荐
Sensorless Motor Drives with Advanced Estimation
Sensorless FOC requires heavy real-time computation - back-EMF observers, sliding-mode estimators, or MRAS observers run as additional code blocks on top of the basic current loop. The DSPIC33EP128MC504T-I/PT's 70 MIPS DSP engine and 24-bit instruction word give enough throughput to run the observer plus two PI loops plus a speed ramp scheduler within one PWM period at 10 kHz. Its high-speed PWM hardware supports single-shunt current reconstruction timing patterns, eliminating Hall or encoder sensors and their cabling. This suits cost-sensitive high-volume drives such as fans, compressors, and power tools. The 8 KB RAM is sufficient for observer state variables and look-up tables, though developers should verify stack headroom when adding complex estimators. Microchip application notes provide sensorless reference code tuned for this exact family.
推荐
Automotive Auxiliary Motor Control (E-variant path)
For automotive auxiliary drives - radiator fans, fuel pumps, wiper systems, seat adjusters - Microchip offers the AEC-Q100 qualified DSPIC33EP128MC504T-E/PT in the identical 44-TQFP footprint. A board designed around the /I/PT industrial part can be migrated to the automotive-qualified variant with no PCB changes, only a BOM swap, which is a major advantage during platform derivatives. The E-variant runs at 60 MIPS (versus 70 MIPS) and tolerates up to +125C ambient, matching under-hood and near-engine zones. Designers should implement the standard automotive software disciplines - watchdog supervision, PWM fault-closure on lockout, and brown-out handling using the device's integrated supervisory features - and validate flash retention across the automotive temperature profile per the qualification test plan.
推荐
Audio Signal Processing and Embedded DSP Applications
With a DSP engine executing single-cycle MACs and 40-bit accumulators, the DSPIC33EP128MC504T-I/PT handles lightweight embedded audio and sensor-signal DSP: active noise cancellation for small appliances, FIR/IIR filtering of acoustic or vibration signals, and tone generation. While it is not a replacement for dedicated audio DSPs, its 70 MIPS throughput processes 16-bit audio sample streams at 48 kHz with several hundred DSP cycles available per sample for filtering and effects. The 128 KB Flash stores code plus coefficient tables, and the 12-bit ADC/DAC-grade analog path (family advanced analog) supports direct microphone and speaker-driver interfacing in cost-sensitive products. For voice-band codecs, pair the device with an external I2S codec via SPI/I2C bridging; keep the ISR cycle budget under 500 cycles per sample to maintain real-time margins.
推荐
推荐产品汇总
工程参考数据： DSPIC33EP128MC504T-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 | DSPIC33EP128MC504T-E/PT | DSPIC33EP64MC504T-I/PT | DSPIC33EP256MC504T-I/PT | DSPIC33EP128GM304T-I/PT | DSPIC33EP128GP504T-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 |
| CPU Speed | 70 MIPS | 60 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Program Memory | 128 KB (43K x 24) | 128 KB (43K x 24) | 64 KB (21K x 24) | 256 KB (87K x 24) | 128 KB (43K x 24) | 128 KB (43K x 24) |
| Temperature Range | -40C to +85C (I grade) | -40C to +125C (E grade, AEC-Q100) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| AEC-Q100 Qualification | No | Yes | No | No | No | No |
| Peripheral Focus | Motor-control PWM + advanced analog | Motor-control PWM + advanced analog | Motor-control PWM + advanced analog | Motor-control PWM + advanced analog | General-purpose peripherals (GM series) | General-purpose peripherals (GP series) |
关键差异点
- Highest speed grade in its 44-TQFP drop-in group （对比 DSPIC33EP128MC504T-E/PT)
- Firmware headroom without respin （对比 DSPIC33EP64MC504T-I/PT)
- Purpose-built motor-control analog （对比 DSPIC33EP128GP504T-I/PT)
设计说明
The dsPIC33EP128MC504 operates from a single 3.3V rail. Place a 0.1 uF ceramic capacitor at each VDD/VSS pin pair plus one 4.7-10 uF bulk capacitor near the device; the 70 MIPS core draws supply-current transients on every clock edge, and long trace inductance causes rail droop that manifests as sporadic traps. When motor gate drivers share the 3.3V domain, isolate MCU supply with an LC filter or ferrite bead to block PWM switching noise from coupling into the ADC reference. Estimated: at typical 70 MIPS operation the family datasheet lists core current in the tens-of-mA range - verify exact ICC against the datasheet current-vs-MIPS curve for your thermal budget.
For motor-control layouts, route PWM outputs (complementary pairs) away from analog feedback lines (current-shunt and voltage-sense traces). Keep the shunt amplifier feedback loop as short as possible and use Kelvin connections to the shunt resistor. The 44-TQFP (10x10 mm) has a thermal pad-free footprint, so heat extraction relies on copper pour - estimate junction temperature as TJ = TA + PD x theta_JA using the datasheet theta_JA for a standard 4-layer board. Locate the crystal/oscillator within 10 mm of OSC1/OSC2 with guard ground, and reserve access to PGC/PGD programming pins on a header for in-circuit debugging with PICkit or ICD tools.
Three recurring mistakes with this family: (1) assuming 5V tolerance on all I/O - the dsPIC33EP operates at 3.3V and most pins are not 5V-tolerant, so level-shift any 5V logic interfaces. (2) Confusing variant suffixes at procurement: /I/PT (industrial, 70 MIPS) vs /E/PT (AEC-Q100, 60 MIPS) are NOT identical devices - the E part derates maximum MIPS, which can break timing-critical control loops if swapped without firmware review. (3) Ignoring the /T Tape-and-Reel quantity when planning reflow lots; partial reels incur cut-tape handling fees. Verify all suffix codes against the Microchip ordering-information table before releasing the BOM.
合规信息
The /I industrial variant is not AEC-Q100 qualified; the /E variant (DSPIC33EP128MC504T-E/PT) is explicitly AEC-Q100 qualified per Microchip USA. RoHS/REACH/lead-free declarations were not present in the retrieved web data - request formal compliance certificates from Microchip.