DSPIC33FJ128GP708A-I/PT - 16-bit 40MIPS 128KB Flash DSC | Microchip
部品番号: DSPIC33FJ128GP708A-I/PT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $15.18 | $15.18 |
| 10 | $13.9 | $139.00 |
| 100 | $13.1 | $1,310.00 |
| 500 | $12.4 | $6,200.00 |
| 1,000 | $11.8 | $11,800.00 |
DSPIC33FJ128GP708A-I/PT 概要
A Digital Signal Controller combines the deterministic control of a microcontroller with the mathematical throughput of a DSP core. In the embedded systems hierarchy, the dsPIC33F sits between general-purpose MCUs (such as the PIC24) and dedicated DSPs, executing digital filter algorithms and high-speed precision digital control loops in a single-chip solution. This makes DSCs the preferred choice for motion control, power conversion, and audio processing systems that must perform under pressure.
Key features of the DSPIC33FJ128GP708A include the 16-bit CPU core executing up to 40 million instructions per second, 128 KB of self-programmable Flash with an ECC-free A-revision silicon, integrated high-speed analog peripherals, and a codec interface (DCI) suited for speech and audio processing. Per the Microchip dsPIC33FJXXXGPX06A/X08A/X10A family datasheet, the GP708A variant targets the 80-pin footprint with seamless migration across memory sizes.
Architecturally, the device pairs a 16-bit modified Harvard core with DSP-engine multiply-accumulate (MAC) instructions, enabling single-cycle MAC operations for FIR/IIR filtering. Multiple PGECx/PGEDx pin pairs support In-Circuit Serial Programming (ICSP) via MPLAB ICD and PICkit tools, and the MPLAB XC-DSC C/C++ compiler provides full ANSI C support with DSC-specific language extensions.
Typical applications include digital power supplies and motor control (SMPS, PFC, FOC), speech and audio processing exploiting the Data Converter Interface, industrial automation sensors, and general-purpose embedded control where 40 MIPS and integrated analog remove the need for a separate DSP.
Design consideration: all VDD and VSS pins must be connected for correct operation and programming - even one unconnected pin can cause ICSP failure. Choose PGEC/PGED pairs consistently during debugger and programmer hookup.
This page synthesizes distributor pricing (as of 2026-09-26), same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers and buyers a single citable reference for the DSPIC33FJ128GP708A-I/PT.
ドロップイン代替品: DSPIC33FJ128GP708A-I/PT — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: DSPIC33FJ128GP708A-I/PT （同一形状・フットプリント） — 相違点: Operating Temperature, Package, ADC, Core Architecture, Program Memory Size.
クイック比較ツール — 並列比較する代替部品を選択:
DSPIC33FJ128GP310A-I/PF
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$5.7 / 個
データシートを見る →DSPIC33FJ128GP708A-E/PT
✅ ドロップイン✓ 在庫あり
$5.8 / 個
データシートを見る →DSPIC33FJ256GP708A-I/PT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
DSPIC33FJ64GP708A-I/PT
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$4.18 / 個
データシートを見る →DSPIC33FJ128GP708-I/PT
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$5.64 / 個
データシートを見る →DSPIC33FJ128GP708A-I/PT 最大定格＆電気的特性
| Core | dsPIC33F, 16-bit |
| Program Memory Size | 128 KB (128K x 8) Flash |
| Maximum Performance | 40 MIPS |
| Product Family | dsPIC33FJ General Purpose (dsPIC33FJXXXGPX06A/X08A/X10A) |
| パッケージ | 80-TQFP (12x12 mm) |
| ピン数 | 80 |
| 実装タイプ | Surface Mount |
| 動作温度 | -40C to +85C (Industrial, I suffix) |
| Programming Interface | ICSP via PGECx/PGEDx pairs |
| Audio Interface | Data Converter Interface (DCI) for speech/audio codec |
| Compiler Support | MPLAB XC-DSC C/C++ Compiler |
| Development Board | Explorer 16/32 Development Board (PIM-based) |
| Device Classification | Digital Signal Controller (DSC) |
DSPIC33FJ128GP708A-I/PT 80-tqfp (12x12 mm) ピン配置ガイド
DSPIC33FJ128GP708A-I/PT (80-tqfp (12x12 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: DSPIC33FJ128GP708A-I/PT.
詳細は データシート をご参照ください。
主な用途
DSPIC33FJ128GP708A-I/PT の用途: 6 件s: Digital Power Conversion, Speech and Audio Processing, Motor Control (BLDC, PMSM, ACIM), Industrial Automation and Sensing, General-Purpose Embedded Control, Portable Test and Measurement Instruments.
Digital Power Conversion
The DSPIC33FJ128GP708A-I/PT executes high-speed precision digital control loops for SMPS, PFC, and inverter stages. Its 16-bit core running at 40 MIPS with single-cycle DSP multiply-accumulate instructions sustains current-loop bandwidths that 8-bit MCUs cannot reach, while integrated advanced analog reduces external signal-conditioning components. In a typical digital power supply, the DSC samples voltage and current through the on-chip ADC, executes a compensator filter in the DSP engine, and drives PWM outputs at switching frequencies of tens to hundreds of kilohertz. The deterministic interrupt latency keeps control-loop jitter low, protecting efficiency and transient response. Firmware-based control also enables adaptive algorithms such as nonlinear or predictive control that fixed-function controllers cannot implement.
おすすめ
Speech and Audio Processing
Microchip explicitly designed the GP family's Data Converter Interface (DCI) for speech and audio applications, and the DSPIC33FJ128GP708A-I/PT applies it directly. The DCI connects to external audio codecs in a multi-channel serial frame format, while the 40 MIPS DSP engine executes FIR/IIR filters, echo cancellation, AGC, and compression algorithms with single-cycle MAC throughput. With 128 KB of Flash, voice-prompt tables and codec firmware fit on-chip, and the 80-pin TQFP provides enough GPIO for keypad, display, and system glue. Typical end products include intercoms, PA controllers, voice-dialing hands-free units, and industrial speech terminals. The key design trade-off is that the DCI requires an external codec, since no audio DAC is integrated.
おすすめ
Motor Control (BLDC, PMSM, ACIM)
Field-oriented control of brushless DC and permanent-magnet synchronous motors demands fast, deterministic current loops - exactly the workload Microchip cites for dsPIC33F devices executing high-speed precision digital control loops. The DSPIC33FJ128GP708A-I/PT samples phase currents via its advanced analog peripherals, runs Clarke/Park transforms and PI compensators in the DSP engine at 40 MIPS, and generates center-aligned PWM for the inverter bridge. The 80-pin package supplies ample PWM channels, encoder or hall inputs, and communication peripherals (UART/SPI/CAN-class links) for drive integration. Compared with an 8-bit MCU solution, the single-cycle MAC shortens loop execution several-fold, enabling higher switching frequencies, lower torque ripple, and sensorless observer algorithms such as sliding-mode or extended Kalman filters.
おすすめ
Industrial Automation and Sensing
Factory nodes - flow meters, load cells, vibration monitors - benefit from the DSPIC33FJ128GP708A-I/PT's combination of 16-bit control, DSP filtering, and integrated analog. Sensor front ends produce noisy microvolt signals; the on-chip ADC plus DSP-implemented notch and averaging filters extract measurement data without external filter ICs. The industrial temperature rating of -40C to +85C suits cabinet and floor installations, and the 80-pin TQFP exposes enough peripherals for RS-485-style UART links, SPI sensor buses, and local HMI I/O. ICSP programming through PGEC/PGED pairs permits field firmware updates on installed hardware. Designs scale within the pin-compatible family - swapping to DSPIC33FJ256GP708A adds Flash for datalogging without a PCB change.
おすすめ
General-Purpose Embedded Control
For products that need more math headroom than a PIC24 but not a full DSP, the DSPIC33FJ128GP708A-I/PT is a pragmatic single-chip answer. The 40 MIPS 16-bit core comfortably runs RTOS-based application code, communication stacks, and control logic concurrently, while 128 KB of self-programmable Flash supports in-field bootloaders. The Explorer 16/32 Development Board with a PIM supports rapid prototyping, and the MPLAB XC-DSC compiler gives full ANSI C with DSC extensions, shortening the learning curve from PIC24 projects. Common wins include instrumentation front ends, barcode and ID readers, and battery-powered test devices where an occasional FFT or filter pass justifies the DSC core without a second processor on the board.
おすすめ
Portable Test and Measurement Instruments
Handheld and bench instruments use the DSPIC33FJ128GP708A-I/PT for acquisition, DSP post-processing, and user interface in one device. The 40 MIPS core timestamps and buffers ADC samples, applies windowing and FFT or RMS computation through the DSP engine, and drives the display and front-panel controls from the 80-pin GPIO budget. Industrial temperature qualification supports workshop environments, and the 12x12 mm TQFP fits compact enclosure layouts. Because the Flash is self-programmable, instruments can ship with calibration routines and receive feature updates in the field via UART or USB-bridge bootloaders. The main trade-off versus a dedicated DSP+MCU pair is peak throughput; for sample rates and filter orders within 40 MIPS, the single-chip approach wins on BOM cost and power.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: DSPIC33FJ128GP708A-I/PT — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | DSPIC33FJ128GP310A-I/PF | DSPIC33FJ128GP708A-E/PT | DSPIC33FJ256GP708A-I/PT | DSPIC33FJ64GP708A-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-TQFP (12x12 mm) | 80-TQFP - same | 80-TQFP - same | 80-TQFP - same | 80-TQFP - same |
| Core / Bits | dsPIC33F, 16-bit | dsPIC33F, 16-bit | dsPIC33F, 16-bit | dsPIC33F, 16-bit | dsPIC33F, 16-bit |
| Performance | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Flash Memory | 128 KB | 128 KB | 128 KB | 256 KB | 64 KB |
| Silicon Revision | A-revision | A-revision | A-revision | A-revision | A-revision |
| Audio Codec Interface (DCI) | Yes | Yes (GP family) | Yes | Yes | Yes |
主な差別化要因
- Balanced 128 KB Flash at lowest family cost tier （vs DSPIC33FJ256GP708A-I/PT)
- Full code headroom versus reduced-memory variant （vs DSPIC33FJ64GP708A-I/PT)
- Standard industrial rating for cost-sensitive builds （vs DSPIC33FJ128GP708A-E/PT)
設計ノート
Per Microchip family documentation, the dsPIC33FJ128GP708A has multiple PGECx/PGEDx pin pairs for ICSP; you may use any pair, but you must use them as a matched pair - PGEC2 with PGED2, for example. All VDD and VSS pins must be connected; even one unconnected power pin can cause programming to fail. Route programming header traces short and away from switching nodes.
Estimated: provide a clean 3.3 V rail with local 0.1 uF ceramic decoupling at every VDD/VSS pair plus one bulk capacitor per power domain; verify the exact operating voltage range in the manufacturer datasheet before layout sign-off, since the value is not stated in the distributor data on this page. Place the regulator output close to the TQFP power pins to minimize transient droop during 40 MIPS core activity.
The 80-TQFP 12x12 mm leadframe supports 0.5 mm pitch traces; fan out with via-in-pad avoidance on the fine-pitch rows and use a solid ground plane under the device. Keep the DCI codec serial lines and crystal traces short and guarded. The Explorer 16/32 Development Board PIM footprint is a good reference layout for first prototypes.
コンプライアンス情報
Compliance status not stated in the provided web data; verify against the official Microchip product page before procurement.