DSPIC33EP128GM304T-I/PT - 70 MIPS 16-bit DSC 128KB | Microchip
料号： DSPIC33EP128GM304T-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.58 | $55.80 |
| 100 | $4.96 | $496.00 |
| 500 | $4.47 | $2,235.00 |
| 1,000 | $3.95 | $3,950.00 |
DSPIC33EP128GM304T-I/PT 概述
A digital signal controller combines the computational architecture of a microcontroller with the numeric acceleration of a digital signal processor. Within the power-management hierarchy of embedded systems, a DSC sits between general-purpose MCUs and dedicated DSPs, making it the preferred choice for control loops that need both deterministic real-time behavior and fast multiply-accumulate arithmetic.
Key features include the dsPIC33E core running at up to 70 MIPS, 5V-tolerant I/O pins with selectable open-drain and internal pull-ups/pull-downs, sink/source capability of 15 mA or 10 mA per pin (pin-specific), and Peripheral Pin Select (PPS) that allows peripheral functions to be remapped across I/O pins for maximum board layout flexibility. The GM-series variant integrates high-speed PWM and on-chip operational amplifiers targeted at precision motor control.
Architecturally, the device is built on CMOS technology with a barrel shifter, DSP multiply-accumulate engine, and boundary-scan (JTAG) support for testability. It operates from a 3.0V to 3.6V supply across the industrial temperature range of -40C to +85C. Class B safety support and change-notice interrupts on all I/O pins further strengthen its suitability for safety-conscious industrial designs.
Typical applications include precision motor control (BLDC, PMSM, stepper), digital power conversion (PFC, LLC), and sensor signal processing in industrial automation, where the integrated op amps and high-speed PWM reduce external component count.
Design consideration: keep the supply within 3.0V to 3.6V and decouple all VDD/VDDCORE pins with 0.1uF ceramics placed close to the package; the T suffix indicates tape-and-reel packaging for automated assembly.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
直接替换替代料： DSPIC33EP128GM304T-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： DSPIC33EP128GM304T-I/PT （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Core Architecture, Core, Quadrature Encoder Interfaces.
快速对比工具——选择替代料号进行并排对比：
DSPIC33EP128GP304-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP64GM304-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP256GM304-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.76 / 个
查看数据手册 →DSPIC33EP32GM304-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP128MC204-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.67 / 个
查看数据手册 →DSPIC33EP128GM304T-I/PT 最大额定值与电气特性
| Core Architecture | 16-bit dsPIC33E DSC core |
| Maximum CPU Speed | 70 MIPS |
| Clock Frequency | 60 MHz |
| Program Memory | 128KB (43K x 24) Flash |
| Data RAM | 16 KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| 工作温度 | -40C to +85C (industrial) |
| 封装 | 44-TQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| I/O Sink/Source Current | 15 mA or 10 mA, pin-specific |
| I/O Voltage Tolerance | 5V tolerant pins |
| Peripheral Remapping | PPS (Peripheral Pin Select) |
| Technology | CMOS |
| Testability | Boundary scan (JTAG) |
| Interrupts | Change Notice interrupts on all I/O pins |
| Class B Safety Support | Yes |
| RoHS 状态 | ROHS3 Compliant |
| Packaging | Tape and Reel (T suffix) |
DSPIC33EP128GM304T-I/PT 44-tqfp (10x10 mm) 引脚配置指南
DSPIC33EP128GM304T-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： DSPIC33EP128GM304T-I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33EP128GM304T-I/PT 适用于 6 应用s: Precision Motor Control (BLDC/PMSM FOC), Digital Power Conversion (PFC/LLC), Industrial Automation and PLC I/O, Sensor Signal Processing, Battery-Powered Portable Instrumentation, Embedded Security and Class B Safety Systems.
Precision Motor Control (BLDC/PMSM FOC)
The DSPIC33EP128GM304T-I/PT is engineered for field-oriented control of brushless DC and permanent-magnet synchronous motors. Its 70 MIPS dsPIC33E core executes current, speed, and position loops with deterministic latency, while the high-speed PWM peripheral generates complementary dead-time-controlled drive signals. The GM-series integrated operational amplifiers amplify shunt-resistor current-sense signals directly, reducing external component count and board area in the analog front end. Typical designs place the DSC between gate drivers and position sensors, running FOC loops at 10-20 kHz with PWM carriers well above audible range. With 5V-tolerant I/O, it interfaces cleanly with legacy 5V hall sensors and encoders. Microchip provides motor-control libraries and reference designs for this exact family, shortening time to a certified drive.
推荐
Digital Power Conversion (PFC/LLC)
In switch-mode power supplies, the DSPIC33EP128GM304T-I/PT closes voltage and current loops digitally for PFC, LLC, and buck-boost stages. The 70 MIPS core and DSP multiply-accumulate support execute 3p3z and PI compensators at switching frequencies of hundreds of kHz, while high-speed PWM outputs provide phase-shifted and complementary drive with fine resolution. The integrated op amps condition current-shunt feedback without external amplifiers, and change-notice interrupts on all I/O pins support fast fault handling. Operating from a 3.0V to 3.6V rail, the controller communicates with host systems over remapped UART or SPI via Peripheral Pin Select. Class B safety support assists with functional-safety assessments common in industrial and telecom power products where a single fault must not create a hazard.
推荐
Industrial Automation and PLC I/O
The DSPIC33EP128GM304T-I/PT serves as an intelligent I/O and sensor-interface processor in industrial automation systems. Its 5V-tolerant, 15 mA/10 mA sink-source I/O connects directly to legacy 24V-conditioned inputs via dividers, and Peripheral Pin Select lets designers route UART, SPI, and PWM functions to whichever pins the backplane connector demands - a major advantage for pin-constrained 44-TQFP layouts. The industrial -40C to +85C rating covers cabinet and field installations, while boundary-scan JTAG supports board-level production test required in IPC-class industrial products. With 128KB Flash, the part hosts protocol stacks and a small real-time operating system simultaneously. Change-notice interrupts on every I/O pin allow immediate reaction to limit-switch or interlock events without polling overhead.
推荐
Sensor Signal Processing
For sensor-heavy applications such as load cells, pressure transducers, and ultrasonic sensing, the DSPIC33EP128GM304T-I/PT combines acquisition with on-chip arithmetic. The GM-series operational amplifiers provide the first gain stage for small differential signals, and the DSP engine applies filtering (IIR/FIR) at up to 70 MIPS without host assistance. Peripheral Pin Select allows the ADC trigger, PWM excitation, and communication ports to be mapped to optimal physical pins, simplifying mixed-signal layout and ground-return planning. The 3.0V to 3.6V supply matches modern analog front ends, and 5V-tolerant digital pins bridge to legacy logic. Data can be streamed over remapped UART/SPI to a host controller, making this DSC a compact smart-sensor core in a single 44-TQFP package.
推荐
Battery-Powered Portable Instrumentation
Handheld meters, portable analyzers, and battery-operated test tools benefit from the DSPIC33EP128GM304T-I/PT's balance of performance and integration. The single 3.0V to 3.6V rail matches a 3.6V lithium cell directly, and CMOS technology keeps static consumption low during sleep modes. The 70 MIPS core completes measurement bursts quickly so the system can return to low-power states sooner, extending battery life. The 128KB Flash holds calibration tables, multiple measurement profiles, and display-driving code, while 16KB RAM buffers waveform captures for on-device analysis. The 44-TQFP 10x10 mm footprint fits compact instrument boards, and industrial temperature rating covers outdoor field use. 5V-tolerant pins simplify interfacing with external probes and charging circuits.
推荐
Embedded Security and Class B Safety Systems
Applications requiring supervised operation - elevator controllers, access panels, and monitored actuators - leverage the DSPIC33EP128GM304T-I/PT's Class B safety support and boundary-scan JTAG. Microchip's Class B library validates RAM, Flash, clock, and stack integrity at runtime, forming the software backbone for safety assessments without external supervisors in lower-SIL contexts. The 70 MIPS core runs both application logic and diagnostic routines with margin, and change-notice interrupts on all I/O pins capture safety-critical input transitions immediately. Boundary scan supports production test of net continuity on dense boards. With 128KB Flash, self-test code and application coexist comfortably, and the industrial -40C to +85C range plus ROHS3 compliance fit both indoor and harsh-environment deployments.
推荐
推荐产品汇总
工程参考数据： DSPIC33EP128GM304T-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 | DSPIC33EP128GP304-I/PT | DSPIC33EP64GM304-I/PT | DSPIC33EP256GM304-I/PT | DSPIC33EP128MC204-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 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128KB (43K x 24) | 128KB (43K x 24) | 64KB | 256KB | 128KB (43K x 24) |
| Data RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Integrated Op Amps (GM series) | Yes | No (GP peripheral set) | Yes | Yes | No (MC motor-control set) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
关键差异点
- Integrated operational amplifiers reduce external BOM （对比 DSPIC33EP128GP304-I/PT)
- Memory upgrade path on identical footprint （对比 DSPIC33EP64GM304-I/PT)
- Balanced general DSC vs specialized MC variant （对比 DSPIC33EP128MC204-I/PT)
设计说明
The DSPIC33EP128GM304T-I/PT requires a tightly regulated 3.0V to 3.6V supply. Decouple every VDD and VDDCORE pin with 0.1uF ceramic capacitors placed within 2 mm of the pin, plus one bulk 4.7uF to 10uF capacitor near the package. The internal core regulator needs its recommended capacitor per the family datasheet - do not omit it, or core-rail ripple can cause spurious resets at 70 MIPS operation. Route the VDDCORE network away from switching-node traces in motor-drive layouts.
Use Peripheral Pin Select (PPS) early in layout planning: because most digital functions are remappable, you can place decoupling and analog components on their ideal pads first, then assign UART/SPI/PWM pins to whichever 44-TQFP pins remain physically convenient. Keep the integrated op-amp input pins short and guard them with ground if shunt signals are in the millivolt range. The 10x10 mm TQFP thermal pad area is adequate for the low-power core; no heatsink is required.
Two common mistakes when migrating within the dsPIC33EP 44-TQFP family: (1) assuming pin-for-pin peripheral identity - while the footprint is identical across GM/GP/MC variants, the analog peripheral set differs, so verify op-amp and ADC channel mapping in the family datasheet before swapping; (2) exceeding 3.6V on VDD - although I/O pins tolerate 5V as inputs, the supply rail must never exceed 3.6V. Also confirm PPS lock settings after configuration to prevent run-time peripheral remapping faults.
合规信息
ROHS3 Compliant per distributor (full-electronic.com) records. REACH, halogen-free, and conflict-minerals status require official Microchip compliance certificates.