DSPIC33FJ128GP310AT-I/PF - 16-bit 40 MIPS DSC 128KB Flash | Microchip
MPN： DSPIC33FJ128GP310AT-I/PF ✓ 啟用中DSPIC33FJ128GP310AT-I/PF 概覽
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.
直接替換替代品，適用於 DSPIC33FJ128GP310AT-I/PF — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： DSPIC33FJ128GP310AT-I/PF （相同外形與佔位） — 差異在於 Package, Operating Temperature, Core, Packaging, Peripherals.
DSPIC33FJ128GP310A-I/PF
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ128GP310ATE/PF
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33FJ256GP310AT-I/PF
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33FJ64GP310AT-I/PF
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33FJ128GP306AT-I/PF
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33FJ128GP310AT-I/PF 最大額定值與電氣特性
| 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 |
| 供應電壓 | 3.3 V |
| Connectivity | I2C, SPI, UART/USART, IrDA, LINbus |
| Peripherals | AC97, Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT |
| 資料匯流排寬度 | 16 bit |
| Technology | CMOS |
| 封裝 | 100-TQFP, 14x14 mm |
| Terminal Pitch | 0.5 mm |
| 安裝類型 | Surface Mount |
| 工作溫度 | -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 腳位配置指南
DSPIC33FJ128GP310AT-I/PF（100-tqfp, 14x14 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： DSPIC33FJ128GP310AT-I/PF.
請參閱 資料表 以查看完整腳位配置。
典型應用
DSPIC33FJ128GP310AT-I/PF 適用於 6 應用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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC33FJ128GP310AT-I/PF — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- 128KB FLASH gives ~2x code headroom over 64KB family members (對比DSPIC33FJ64GP310AT-I/PF)
- A-revision drop-in available with errata fixes (對比DSPIC33FJ128GP310A-I/PF)
- Extended-temperature sibling exists in the same footprint (對比DSPIC33FJ128GP310ATE/PF)
設計說明
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.
合規資訊
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.
