DSPIC33FJ256GP710T-I/PT - 16-bit 40 MIPS DSC 256KB Flash | Microchip
MPN： DSPIC33FJ256GP710T-I/PT ✓ 啟用中DSPIC33FJ256GP710T-I/PT 概覽
A Digital Signal Controller combines the compute architecture of a microcontroller with the math throughput of a DSP. Within the power-management hierarchy of embedded semiconductors, the dsPIC33F family sits between general-purpose MCUs (such as PIC24) and dedicated DSPs, integrating a DSP engine with multiply-accumulate (MAC) instructions, high-speed ADC, PWM, and comparators on a single chip.
Key features include the 16-bit modified Harvard architecture with 16 W x 16-bit multiply and 32/16-bit divide support, 85 general-purpose I/O, 35 I/O ports per digchips listing data, up to four high-speed comparators with direct ADC connection, and seamless migration options to PIC24F, PIC24H MCUs and dsPIC30F DSCs in similar packages per the Microchip product page. Flash program memory is 256 KB (256K x 8), SRAM is 30 KB (30720 bytes per Mouser listing), and the device is supplied in Tape and Reel packaging (suffix T).
Technically, the dsPIC33F core runs its instruction and clock system at 40 MHz for 40 MIPS throughput, supported by an on-chip oscillator system and a rich interrupt architecture suited to deterministic real-time control loops. Peripherals typically include UART, SPI, I2C, ECAN, and a high-speed 10/12-bit ADC, enabling closed-loop control with sampling and computation in a single cycle-accurate pipeline.
Typical applications include digital power supplies, motor control inverters, sensor signal conditioning and industrial automation nodes, all of which benefit from the combination of DSP math throughput and MCU peripheral integration. The general-purpose (GP) variant is preferred where broad analog and communication peripherals are needed rather than the motor-control (MC) focused PWM sets.
A key design consideration: the device supports multiple PGECx/PGEDx pin pairs for ICSP programming, but each pair must be used as a matched pair - if PGEC2 carries ICSPCLK, ICSPDAT must connect to PGED2, as documented by Microchip development resources.
This page synthesizes distributor listings, drop-in family alternatives, and design guidance not consolidated in the manufacturer datasheet alone. Prices shown are estimated as of 2026-09-27 and should be confirmed at checkout.
直接替換替代品，適用於 DSPIC33FJ256GP710T-I/PT — 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： DSPIC33FJ256GP710T-I/PT （相同外形與佔位） — 差異在於 Operating Temperature, Package, RoHS Status, Core, Supply Voltage.
DSPIC33FJ256GP710A-I/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33FJ256GP510T-I/PT
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ256MC710T-I/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33FJ128GP710-I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33FJ128MC710T-I/PT
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ64GP710-I/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33FJ256GP710T-I/PT 最大額定值與電氣特性
| Core Architecture | 16-bit dsPIC33F Digital Signal Controller |
| Max CPU Speed | 40 MIPS (40 MHz) |
| Flash Program Memory | 256 KB (256K x 8) |
| SRAM | 30 KB (30720 bytes) |
| 供應電壓 | 3 V to 3.6 V |
| I/O Ports | 35 (per digchips listing); 85 I/O total per Mouser |
| 工作溫度 | -40C to +85C (industrial, code I) |
| 封裝 | 100-pin TQFP (PT), 12x12 mm, 1 mm height |
| 安裝類型 | Surface Mount |
| Packaging | Tape and Reel (suffix T) |
| Comparators | Up to 4 high-speed comparators with direct ADC connection |
| Programming Interface | ICSP via matched PGECx/PGEDx pin pairs |
| Migration Path | Pin-compatible options to PIC24F, PIC24H, dsPIC30F in similar packages |
| RoHS 狀態 | Lead free / RoHS Compliant |
| Lifecycle Stage | ACTIVE |
| Family Sub-type | General Purpose (GP) digital signal controller |
DSPIC33FJ256GP710T-I/PT 100-pin tqfp (pt), 12x12 mm, 1 mm height 腳位配置指南
DSPIC33FJ256GP710T-I/PT（100-pin tqfp (pt), 12x12 mm, 1 mm height 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： DSPIC33FJ256GP710T-I/PT.
請參閱 資料表 以查看完整腳位配置。
典型應用
DSPIC33FJ256GP710T-I/PT 適用於 6 應用s: Digital Power Supplies, Industrial Motor Control, Sensor Signal Conditioning, Industrial Automation and Fieldbus Nodes, Embedded Audio and Signal Processing, Test and Measurement Instruments.
Digital Power Supplies
Digital SMPS designs benefit directly from the DSPIC33FJ256GP710T-I/PT because it combines a 40 MIPS 16-bit core with high-speed PWM, a fast ADC, and up to four comparators with direct ADC connection, allowing current-mode control loops to be sampled, computed, and updated within a single switching period at 20-100 kHz. The 256 KB Flash accommodates multiple control laws, protection state machines, and PMBus-style communication stacks without external memory. Placed as the sole controller, it replaces analog compensation networks with firmware, enabling programmable output voltage, soft-start, and adaptive dead-time. The trade-off versus dedicated digital-power ICs is firmware development effort, offset by design flexibility.
推薦
Industrial Motor Control
For inverter-driven PMSM, BLDC, and induction motors, the DSPIC33FJ256GP710T-I/PT supplies the deterministic math throughput needed for field-oriented control: single-cycle 16x16 MAC operations at 40 MIPS let the FOC loop close in tens of microseconds. The integrated high-speed PWM generates complementary outputs with dead-time insertion, and the ADC triggers synchronously with the PWM for ripple-free phase-current sampling. With 256 KB of firmware space, position-sensorless observers and field-weakening algorithms fit alongside communication stacks. Where the design is purely motor-centric, the MC sub-family variant DSPIC33FJ256MC710 in the same 100-pin TQFP footprint offers motor-control-optimized peripherals with PCB layout unchanged.
推薦
Sensor Signal Conditioning
Industrial sensor nodes use the DSPIC33FJ256GP710T-I/PT to digitize, filter, and linearize analog signals close to the source. The integrated high-speed ADC samples multi-channel inputs, and the four high-speed comparators - wired directly to the ADC per Microchip documentation - provide fast threshold alarms without CPU intervention. Fixed-point FIR and IIR filtering runs efficiently using the DSP multiply-accumulate engine at 40 MIPS, allowing real-time noise rejection that would otherwise require external analog filtering stages. The 85 I/O and multiple UART/SPI/I2C interfaces fan results out to PLC backplanes or fieldbus transceivers, making a single-chip sensor-to-bus front end practical.
推薦
Industrial Automation and Fieldbus Nodes
As a fieldbus node controller, the DSPIC33FJ256GP710T-I/PT runs protocol stacks over its ECAN, UART, SPI, and I2C peripherals while simultaneously handling local I/O scanning. The 3.0-3.6 V supply and -40C to +85C industrial rating suit cabinet-mounted electronics, and the 256 KB Flash retains headroom for protocol updates, OTA-style field upgrades, and diagnostic logging in SRAM. Deterministic interrupt latency at 40 MIPS keeps bus turnaround times within PROFIBUS- and CANopen-style timing windows. Compared with a general-purpose PIC24, the integrated DSP engine accelerates CRC computation and filtering of acquired data, reducing effective bus-offload CPU loading in dense automation racks.
推薦
Embedded Audio and Signal Processing
The 16-bit DSP engine of the DSPIC33FJ256GP710T-I/PT executes single-cycle MAC operations suited to modest audio processing: equalization, limiter/compressor dynamics, and echo control at 40 MIPS handle multiple channels at 48 kHz sampling rates. The high-speed ADC captures line-level inputs, and PWM outputs can drive class-D modulation stages in low-cost audio paths. With 256 KB Flash, multiple preset curves and user interfaces coexist with the processing kernel. For demanding high-resolution audio, dedicated audio DSPs are more appropriate; this DSC excels where audio processing must be integrated with control logic, communications, and user interface in a single 3.3 V, 100-pin TQFP device.
推薦
Test and Measurement Instruments
Bench and portable instruments use the DSPIC33FJ256GP710T-I/PT as the real-time acquisition and control engine. The high-speed ADC with direct comparator connectivity enables automatic trigger generation, while the 40 MIPS core performs post-trigger windowing, fixed-point DSP analysis, and calibration math. Multiple UART/SPI ports drive front-panel displays, USB-bridge chips, and auxiliary converters concurrently. The 256 KB Flash stores calibration tables, multiple measurement firmware personalities, and bootloaders for field firmware updates. Its 3.3 V single-supply operation simplifies the internal power tree of battery-operated handheld instruments, and the industrial temperature rating keeps specifications stable across the -40C to +85C service envelope required by lab and field environments.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC33FJ256GP710T-I/PT — 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 | DSPIC33FJ256GP710A-I/PT | DSPIC33FJ256GP510T-I/PT | DSPIC33FJ256MC710T-I/PT | DSPIC33FJ128GP710-I/PT | DSPIC33FJ128MC710T-I/PT | DSPIC33FJ64GP710-I/PT |
|---|---|---|---|---|---|---|---|
| Package | 100-TQFP (PT), 12x12 mm | 100-TQFP (PT), 12x12 mm - same | 100-TQFP (PT) - same | 100-TQFP (PT) - same | 100-TQFP (PT) - same | 100-TQFP (PT) - same | 100-TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 128 KB | 128 KB | 64 KB |
| CPU Speed | 40 MIPS (40 MHz) | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Peripheral Sub-family | GP (General Purpose) | GP | GP | MC (motor control) | GP | MC (motor control) | GP |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Silicon Revision | Original | A-step (errata resolved) | Per family revision | Per family revision | Per family revision | Per family revision | Per family revision |
主要差異化特點
- Full 256 KB Flash in the 100-pin family (對比DSPIC33FJ128GP710-I/PT)
- GP peripheral variant with broad analog/communication set (對比DSPIC33FJ256MC710T-I/PT)
- A-step errata option in identical footprint (對比DSPIC33FJ256GP710A-I/PT)
設計說明
The dsPIC33FJ256GP710 provides more than one PGECx/PGEDx programming pair, and Microchip development documentation warns that each pair must be used as a matched set: if PGEC2 carries ICSPCLK, then ICSPDAT must connect to PGED2. Mismatching pairs across different pair numbers is a common bring-up failure that looks like a dead board. Decide on ONE programming pair early in layout, route it as a short matched pair to the programming header, and do not share those pins with high-current or noisy loads.
The device requires a 3.0-3.6 V supply (nominal 3.3 V). Estimate: at 40 MIPS with substantial I/O loading, core plus I/O current typically falls in the tens of mA range, so a low-noise LDO with at least 150-250 mA headroom covers the controller and decoupling margin. Place a 0.1 uF ceramic capacitor at each VDD/VSS pair as close to the pins as possible, plus bulk 4.7-10 uF near the supply entry. Check the Microchip datasheet 70286C power section for the definitive per-pin decoupling recommendation.
For the 100-pin TQFP (12x12 mm), use a land pattern per the Microchip datasheet mechanical drawing and fan out on at least a 4-layer board with a solid ground plane. Keep the analog supplies and ADC reference routing away from PWM switching nodes when the part drives power electronics; a quiet analog island near the ADC pins measurably reduces effective-noise floor. Underside pad geometry is standard TQFP - no exposed pad - so thermal relief relies on copper pours rather than thermal vias.
Verify the silicon errata for your purchased revision: the original dsPIC33FJ256GP710 revision has documented errata that the A-step (DSPIC33FJ256GP710A) resolves. Before committing a production PCB to the original part, download the current errata from Microchip and confirm your firmware does not exercise affected peripherals. If affected, order the A-variant - it is the same footprint and pinout, so no layout change is required.
合規資訊
Per Micro-Semiconductor PDF listing: Lead free / RoHS Compliant. REACH, halogen-free, and conflict-minerals status not stated in provided data.
