DSPIC33FJ128MC706A-I/PT - 16-bit 40MIPS 128KB Flash DSC | Microchip
部品番号: DSPIC33FJ128MC706A-I/PT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $8.4 | $8.40 |
| 10 | $7.72 | $77.20 |
| 100 | $6.6 | $660.00 |
| 500 | $5.85 | $2,925.00 |
| 1,000 | $5.2 | $5,200.00 |
DSPIC33FJ128MC706A-I/PT 概要
A Digital Signal Controller (DSC) is a hybrid device that combines the deterministic interrupt-driven control of a microcontroller (MCU) with the high-throughput signal-processing capabilities of a digital signal processor (DSP). Within the broader taxonomy, the dsPIC33F sits above a generic 8-bit PIC MCU and below 32-bit MCU/DSP cores such as ARM Cortex-M4F. Its single-cycle MAC and barrel shifter enable real-time PID, space-vector modulation, and digital filter loops that 8-bit MCUs cannot execute at the required loop rate.
Key feature highlights include 11 timers, 8 DMA channels for offloading core data movement, four serial communication interfaces (UART/SPI/I2C), and a 10-bit ADC capable of up to 1.1 Msps with multiple S&H channels for simultaneous current/voltage sampling. The integrated CAN 2.0B module supports industrial automation networks, while the high-resolution PWM block provides 7.5 ns edge placement - critical for field-oriented control of PMSM and BLDC motors.
The architecture pairs a 16-bit data path with a 24-bit instruction word, allowing C-compiler-friendly addressing while preserving single-cycle DSP operations. An 8-channel hardware DMA engine reduces CPU overhead when streaming ADC samples into RAM, which is essential for closed-loop current control at 20 kHz PWM without jitter.
Typical applications include BLDC and PMSM motor drives, field-oriented control (FOC) inverters, switched-mode power supplies (PFC/digital LLC), industrial PLCs with CAN connectivity, solar micro-inverters, and automotive accessory drives. The wide operating voltage (3.0 V to 3.6 V) and 40 MIPS throughput make it equally suited to 24 V industrial bus systems and low-voltage battery-powered equipment.
Designers should plan for crystal selection (7.37 MHz or 10 MHz typical with PLL to 40 MIPS), decoupling per VDD/AVDD pin, and proper PCB separation of analog and digital grounds to achieve the ADC SNR published in the datasheet. The 64-TQFP footprint gives generous I/O and analog channel headroom for three-phase motor-control boards.
This page synthesizes distributor pricing, drop-in alternatives drawn from the same dsPIC33FJ128MC706A family, and practical design notes not consolidated in the manufacturer datasheet.
ドロップイン代替品: DSPIC33FJ128MC706A-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: DSPIC33FJ128MC706A-I/PT （同一形状・フットプリント） — 相違点: Package, ADC, Core Architecture, Timers, Operating Temperature.
クイック比較ツール — 並列比較する代替部品を選択:
DSPIC33FJ128MC706A-I/MR
✅ ドロップイン✓ 在庫あり
$6.54 / 個
データシートを見る →DSPIC33FJ128MC706A-E/PT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
DSPIC33FJ128MC510A-I/PF
✅ ドロップイン✓ 在庫あり
$8.1 / 個
データシートを見る →DSPIC33FJ128MC506A-I/PT
✅ ドロップイン✓ 在庫あり
$3.2 / 個
データシートを見る →DSPIC33FJ128MC510A-E/PT
✅ ドロップイン✓ 在庫あり
$5.45 / 個
データシートを見る →DSPIC33FJ128GP706A-I/PT
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$7.86 / 個
データシートを見る →DSPIC33FJ128MC706A-I/PT 最大定格＆電気的特性
| Core Architecture | dsPIC33F 16-bit modified Harvard DSC |
| CPU Speed | 40 MIPS (MIPS) |
| Program Memory (Flash) | 128 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| 動作温度 | -40 C to +85 C (Industrial) |
| パッケージ | 64-pin TQFP (10x10 mm) |
| 実装タイプ | Surface Mount |
| Timers | 11 |
| DMA Channels | 8 |
| Serial I/O Interfaces | 4 (UART/SPI/I2C) |
| ADC | 10-bit, up to 1.1 Msps, multiple S&H |
| PWM Resolution | 7.5 ns edge placement (motor control PWM) |
| CAN | CAN 2.0B |
| Instruction Word | 24-bit |
| Data Path | 16-bit |
| RoHS ステータス | Compliant |
DSPIC33FJ128MC706A-I/PT 64-pin tqfp (10x10 mm) ピン配置ガイド
DSPIC33FJ128MC706A-I/PT (64-pin tqfp (10x10 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: DSPIC33FJ128MC706A-I/PT.
詳細は データシート をご参照ください。
主な用途
DSPIC33FJ128MC706A-I/PT の用途: 6 件s: BLDC and PMSM Motor Drives, Field-Oriented Control (FOC) Inverters, Switched-Mode Power Supplies (PFC/Digital LLC), Industrial PLCs with CAN Connectivity, Solar Micro-Inverters, Automotive Accessory Drives.
BLDC and PMSM Motor Drives
The DSPIC33FJ128MC706A-I/PT's dedicated motor-control PWM block with 7.5 ns edge placement and dedicated quadrature encoder interface make it purpose-fit for BLDC and PMSM field-oriented control (FOC). The 40 MIPS core executes the full FOC loop including Clarke/Park transforms, SVPWM modulation, and PI control within a 20 kHz PWM period with substantial margin. Dual S&H ADC channels enable simultaneous DC-bus and phase current sampling, eliminating the sequence-dependent sampling error that degrades torque ripple in three-phase systems.
おすすめ
Field-Oriented Control (FOC) Inverters
The DSPIC33FJ128MC706A-I/PT executes a complete sensorless FOC algorithm in real time using the Microchip Motor Control Library (AN1078 and AN1292). Its 128 KB Flash accommodates the full library plus user application, and the single-cycle MAC and barrel shifter keep the FOC interrupt service routine under 10 us at 40 MHz. The dedicated 10-bit ADC and dual S&H channels sample two phase currents plus the DC-bus voltage in the same PWM cycle, enabling sliding-mode observer-based sensorless startup.
おすすめ
Switched-Mode Power Supplies (PFC/Digital LLC)
The DSPIC33FJ128MC706A-I/PT suits digital control of PFC and LLC resonant converters, where the 40 MIPS core handles voltage-mode and current-mode control loops plus housekeeping tasks. Its high-resolution PWM enables digital PFC achieving near-unity power factor with adaptive dead-time insertion. The integrated CAN bus is valuable for digital power shelves in telecom rectifiers that need to report telemetry to the system controller.
おすすめ
Industrial PLCs with CAN Connectivity
The DSPIC33FJ128MC706A-I/PT integrates a CAN 2.0B peripheral that drops directly into CANopen and DeviceNet industrial networks, making it suitable for I/O modules and small PLCs. Its 128 KB Flash stores the CANopen stack plus ladder-logic interpreter, and the four serial interfaces handle RS-485, I2C sensors, and SPI peripherals concurrently. The -40 C to +85 C industrial temperature range tolerates cabinet environments, and the 64-TQFP package provides enough I/O for 16 digital inputs plus analog channels.
おすすめ
Solar Micro-Inverters
The DSPIC33FJ128MC706A-I/PT is well suited to single-panel solar micro-inverters running MPPT and grid-tie control loops. Its PWM resolution and 40 MIPS throughput allow interleaved PFC plus full-bridge LLC digital control, while the CAN interface supports panel-to-inverter communication in residential micro-inverter arrays. The industrial temperature grade and 3.3 V operation match the inverter's auxiliary supply rails derived from the PV string.
おすすめ
Automotive Accessory Drives
The DSPIC33FJ128MC706A-I/PT and its -E variant (AEC-Q100 qualified) are used in automotive accessory motors such as HVAC blowers, electric water pumps, and electric power-steering pumps. The motor-control PWM peripherals deliver smooth torque with low acoustic noise, while the CAN bus integrates with the vehicle's chassis network. The automotive-grade -E variant operates to +125 C and survives under-hood thermal stress.
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: DSPIC33FJ128MC706A-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 | DSPIC33FJ128MC706A-I/MR | DSPIC33FJ128MC706A-E/PT | DSPIC33FJ128MC510A-I/PF | DSPIC33FJ128MC506A-I/PT | DSPIC33FJ128GP706A-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (10x10 mm) | QFN-64 (9x9 mm) - different PCB land pattern | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same |
| Core Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| CAN 2.0B | Yes | Yes | Yes | Yes | No | No |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| AEC-Q100 Automotive | Not qualified (I suffix) | Not qualified (I suffix) | AEC-Q100 qualified (E suffix) | Not qualified (I suffix) | Not qualified (I suffix) | Not qualified (I suffix) |
| Motor Control PWM | Yes (dedicated, 7.5 ns edge) | Yes (dedicated, 7.5 ns edge) | Yes (dedicated, 7.5 ns edge) | Yes (dedicated) | Yes (dedicated) | No (general-purpose PWM only) |
主な差別化要因
- Integrated CAN 2.0B plus dedicated motor-control PWM in single 64-TQFP （vs DSPIC33FJ128MC506A-I/PT)
- 40 MIPS core with 128 KB Flash - largest density in the MC706 family （vs DSPIC33FJ128MC510A-I/PF)
- Industrial -40 C to +85 C temperature grade for cabinet-mounted drives （vs DSPIC33FJ128MC706A-E/PT)
設計ノート
Estimated: at maximum CPU activity of 40 MIPS and 3.3 V supply with 60 mA core current draw, internal power dissipation is approximately 200 mW. The TQFP-64 (PT) package has a typical theta_JA around 50 C/W on a 4-layer 1-oz PCB, giving a junction temperature rise near 10 C above ambient - well within the +85 C industrial limit. For closed motor-drive applications running at +85 C ambient plus MOSFET switching losses, derate by ensuring at least 1 sq inch of continuous copper under the thermal pad region.
Place a 10 uF bulk tantalum or ceramic plus a 100 nF decoupling capacitor on every VDD/AVDD pin pair, located within 3 mm of the pin per Microchip's decoupling guidelines. Use separate analog and digital ground planes joined at a single point near the device's GND pins. The on-chip voltage regulator requires an external 10 uF + 100 nF cap on VCAP to maintain 2.5 V internal core rail stability - omitting this cap is a common cause of erratic firmware behavior.
Do not leave unused I/O pins floating - configure them as outputs or enable the internal pull-ups. The JTAG TMS/TCK pins share with general-purpose I/O; if JTAG is not used, set the JTAGEN bit in the configuration word to release the pins. The MCLR pin requires a 10 kohm pull-up to VDD; if left floating, the device may randomly enter reset. For low-power sleep modes, configure all peripherals for wake-on-interrupt to avoid current spikes on resume.
Keep the external crystal or oscillator traces within 10 mm of the OSC1/OSC2 pins and surround them with a ground pour to minimize EMI. For ADC accuracy, route analog inputs (AN0-ANx on PORTB) away from PWM and switching traces - a 0.5 mm trace-to-trace spacing on adjacent layers prevents capacitive coupling. The CAN bus transceiver should sit within 25 mm of the C1RX/C1TX pins, with a 120 ohm split termination at the bus ends.
コンプライアンス情報
Industrial-grade part (I suffix), not AEC-Q100. For AEC-Q100 automotive qualification choose -E variant. RoHS and lead-free status per Microchip product page as of 2026-09-26.
