DSPIC33FJ128GP310AT-I/PF - 16-bit 40 MIPS DSC 128KB Flash | Microchip
料号： DSPIC33FJ128GP310AT-I/PF ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.58 | $75.80 |
| 100 | $6.74 | $674.00 |
| 500 | $6.32 | $3,160.00 |
| 1,000 | $5.89 | $5,890.00 |
DSPIC33FJ128GP310AT-I/PF 概述
A digital signal controller combines the compute power of a DSP with the simplicity and peripheral set of a microcontroller. In the system hierarchy, the DSC sits above general-purpose MCUs and below standalone DSPs, making it the natural choice when a control loop needs both fast math (MAC, DSP instructions) and rich communication peripherals. The dsPIC33F family was designed by Microchip specifically for high-speed precision digital control loops, digital filtering, and digital audio and speech processing.
Key features include the 40 MIPS dsPIC33F core executing DSP-class instructions in a single cycle, 128KB of self-programmable FLASH supporting field firmware updates, and 16KB of on-chip RAM for data buffers. Connectivity covers I2C, SPI, UART/USART, IrDA, and LINbus, while integrated peripherals include AC97 audio, I2S, DMA controller, PWM outputs, brown-out detect/reset, power-on reset, and a watchdog timer, plus an analog-to-digital converter subsystem for sensor interfacing.
Architecturally, the CMOS-based core pairs a 16-bit modified Harvard pipeline with DSP engine features such as a 17-bit x 17-bit multiplier and 40-bit accumulator, letting firmware implement FIR/IIR filters and PID loops with deterministic cycle counts. DMA offloads the CPU for high-throughput ADC, UART, and audio streams, which is essential in motor control and audio applications.
Typical applications include digital power supplies and LED lighting, brushless motor control, industrial sensing and automation, and audio/speech processing where the AC97 and I2S peripherals remove external codecs.
Design consideration: the -I suffix denotes the industrial temperature grade; derate maximum clock with the supply-voltage operating graph in the manufacturer datasheet, and place 0.1uF decoupling capacitors on every VDD/VSS pair.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： DSPIC33FJ128GP310AT-I/PF ——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： DSPIC33FJ128GP310AT-I/PF （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Core, Packaging, Peripherals.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ128GP310A-I/PF
✅ 直接替换✓ 有现货
$5.7 / 个
查看数据手册 →DSPIC33FJ128GP310ATE/PF
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ256GP310AT-I/PF
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ64GP310AT-I/PF
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.06 / 个
查看数据手册 →DSPIC33FJ128GP306AT-I/PF
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ128GP310AT-I/PF 最大额定值与电气特性
| Core | dsPIC 33F, 16-bit RISC with DSP engine |
| Maximum CPU Speed | 40 MIPS |
| Program Memory Size | 128KB (128K x 8) FLASH |
| RAM Size | 16KB |
| 电源电压 | 3.3 V |
| Connectivity | I2C, SPI, UART/USART, IrDA, LINbus |
| Peripherals | AC97, Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT |
| 数据总线宽度 | 16 bit |
| Technology | CMOS |
| 封装 | 100-TQFP, 14x14 mm |
| Terminal Pitch | 0.5 mm |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to +85C (industrial, -I suffix) |
| Packaging | Tape & Reel (T/R) |
| Watchdog Timer | Yes (WDT) |
| DMA Channels | Yes (DMA controller) |
DSPIC33FJ128GP310AT-I/PF 100-tqfp, 14x14 mm 引脚配置指南
DSPIC33FJ128GP310AT-I/PF（100-tqfp, 14x14 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： DSPIC33FJ128GP310AT-I/PF.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33FJ128GP310AT-I/PF 适用于 6 应用s: Digital Power Supplies, Brushless Motor Control, Digital Audio and Speech Processing, Industrial Automation and Sensing, Medical and Portable Instrumentation, Lighting Control (LED/HID).
Digital Power Supplies
The 40 MIPS dsPIC33F core executes voltage- and current-loop PID or predictive control at tens of kHz switching frequencies with deterministic single-cycle MAC operations, which is why Microchip designed this family for high-speed precision digital control loops. The DSPIC33FJ128GP310AT-I/PF pairs its high-speed ADC sampling with PWM peripherals and DMA so that control-loop data moves without CPU intervention, preserving loop latency. Typical use: place the DSC as the sole supervisory controller of an LLC or buck converter, using the 3.3V industrial-grade part over -40C to +85C. The trade-off versus a dedicated digital power controller is a larger firmware effort but far greater flexibility in topology and feature set.
推荐
Brushless Motor Control
Sensorless and sensored BLDC/PMSM drives need fast current-loop math plus six PWM outputs with dead-time control, exactly the combination the DSPIC33FJ128GP310AT-I/PF provides at 40 MIPS. The PWM module supports complementary outputs and the ADC can synchronize sampling to PWM boundaries, minimizing switching-noise corruption of current readings, while DMA streams samples to RAM. The 100-pin TQFP exposes enough pins for gate-drive interfaces, encoder or hall inputs, and communication (UART/CAN via UART/SPI peripherals) to a host controller. Firmware effort is the main cost relative to a dedicated motor-control ASIC, but the dsPIC33F supports FOC, trapezoidal, and custom schemes in one silicon.
推荐
Digital Audio and Speech Processing
With integrated AC97 and I2S interfaces, the DSPIC33FJ128GP310AT-I/PF connects directly to audio codecs while the DSP engine runs echo cancellation, filtering, and sample-rate conversion at 40 MIPS. Microchip explicitly targets digital audio and speech processing with the dsPIC33F core, whose single-cycle 17x17 multiplier and 40-bit accumulator keep FIR/IIR filter routines within real-time budgets. DMA moves audio frames between the serial audio port and the 16KB RAM without CPU intervention, and UART/I2C manage host communication and codec configuration. For voice-band products (intercoms, PA systems, speech devices) this removes both a dedicated DSP and an external protocol bridge from the BOM.
推荐
Industrial Automation and Sensing
Factory nodes need rugged controllers that speak multiple field protocols; this part offers I2C, SPI, UART/USART, IrDA, and LINbus on one chip, letting a single DSPIC33FJ128GP310AT-I/PF interface sensors, EEPROMs, displays, and a LIN or UART backbone simultaneously. The -40C to +85C industrial grade, brown-out reset, power-on reset, and watchdog timer provide the reliability framework required in unattended equipment, while the 128KB FLASH supports self-programming for field firmware updates. Its 40 MIPS headroom handles filtering, scaling, and protocol parsing concurrently. Compared with a basic MCU, the DSP math lets vibration or current-signature analytics run locally at the node.
推荐
Medical and Portable Instrumentation
Battery-powered diagnostic and monitoring instruments benefit from the part's single-chip integration: the ADC subsystem digitizes physiological signals, DSP instructions implement 50/60 Hz notch and passband filters, and I2S/AC97 support audio cues or telemedicine voice channels. At 3.3V single supply with CMOS technology, power budgets are manageable for portable designs, and the industrial temperature range covers sterilization-adjacent environments. The 128KB FLASH accommodates calibration tables, UI code, and communication stacks (UART-to-Bluetooth or USB-bridge modules), while DMA keeps sampling continuous during transmission. Verify medical-specific reliability and regulatory requirements independently, since this is a standard industrial-grade device rather than a medical-certified part.
推荐
Lighting Control (LED/HID)
Dimming, color mixing, and ballast control require precise PWM generation plus closed-loop current regulation; the DSPIC33FJ128GP310AT-I/PF delivers both with its PWM peripherals and fast control-loop capability at 40 MIPS. Digital lighting designs use the DSC to implement DALI-like or DMX protocols on UART/SPI peripherals while modulating multiple PWM channels for multi-channel luminaires. The industrial temperature rating suits outdoor and enclosed fixtures, and the 100-pin package provides I/O headroom for sensors, user interfaces, and communication transceivers on a single controller. The trade-off versus a fixed-function lighting controller is firmware complexity, repaid by full flexibility in dimming curves and communication standards.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ128GP310AT-I/PF ——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 | DSPIC33FJ128GP310A-I/PF | DSPIC33FJ128GP310ATE/PF | DSPIC33FJ256GP310AT-I/PF | DSPIC33FJ64GP310AT-I/PF |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TQFP (14x14 mm) | 100-TQFP (14x14 mm) - same | PQFP100 (14x14 mm) - same footprint | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| FLASH Program Memory | 128KB | 128KB | 128KB | 256KB | 64KB |
| RAM | 16KB | 16KB | 16KB | 16KB | 16KB |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (industrial) | Extended (E suffix) grade | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Connectivity | I2C, SPI, UART, IrDA, LINbus | Same | Same | Same | Same |
| Silicon Revision | Base GP310 (AT) | A-revision (errata fixes) | Extended temp build | 256KB variant | 64KB variant |
关键差异点
- 128KB FLASH gives ~2x code headroom over 64KB family members （对比 DSPIC33FJ64GP310AT-I/PF)
- A-revision drop-in available with errata fixes （对比 DSPIC33FJ128GP310A-I/PF)
- Extended-temperature sibling exists in the same footprint （对比 DSPIC33FJ128GP310ATE/PF)
设计说明
Supply the dsPIC33F core and I/O from a regulated 3.3V rail (the family operating point per verified data). Decouple every VDD/VSS pair with 0.1uF ceramic capacitors placed within a few millimeters of the pins, and add a bulk 10uF capacitor near the device. Because multiple power/ground pin pairs exist on the 100-pin TQFP, distribute decoupling around all four sides of the package rather than clustering it. Use a separate ferrite bead or RC filter for the analog AVDD supply to keep ADC noise low.
The 14x14 mm TQFP with 0.5 mm pitch requires careful footprint generation: follow the IPC-calculated land pattern rather than the package outline drawing alone to avoid solder bridging. Use an OSP or ENIG finish for fine-pitch assembly, and route the programming/debug pins (PGD/PGC, MCLR with 10k pull-up) to a standard 5-pin header even in production so firmware field updates remain possible. Reserve silkscreen markers for pin-1 orientation to prevent assembly rotation errors.
Do not treat the AT and A-revision parts as perfectly identical: the A-revision incorporates errata corrections, so review the Microchip errata document for the GP310 family before dropping a DSPIC33FJ128GP310A-I/PF into an existing board, especially if your firmware exercises peripherals listed in errata. Also confirm the configuration-fuse settings (clock source, watchdog, brown-out) match between revisions at programming time, and re-run any timing-critical control loops after migration.
合规信息
The PF package suffix on Microchip parts conventionally denotes lead-free/RoHS-compliant plating; formal RoHS/REACH certificates were not captured in the verified data for this exact MPN - confirm on the Microchip product page.
