DSPIC33FJ256GP510-I/PT - 16-bit DSC 40 MIPS 256 KB Flash | Microchip
MPN： DSPIC33FJ256GP510-I/PT ✓ 啟用中DSPIC33FJ256GP510-I/PT 概覽
A Digital Signal Controller combines the compute throughput of a Digital Signal Processor (DSP) with the peripheral integration and deterministic control of a microcontroller (MCU). Within the embedded-processing hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP, making the dsPIC33F family a natural choice for motor control, digital power conversion, and sensor signal processing where both math throughput and tight real-time I/O are required.
Key features of the DSPIC33FJ256GP510 include the dsPIC33F core with a hardware DSP engine (single-cycle 16x16 MAC, 40-bit wide accumulator, dual-operand fetch), a general-purpose peripheral set with multiple UART, SPI, and I2C modules, a high-speed 12-bit ADC with multi-channel scanning, output compare and input capture channels for PWM and timing, plus In-Circuit Serial Programming (ICSP) and in-circuit debugging via PGECx/PGEDx pin pairs. The -I suffix indicates industrial -40C to +85C temperature coverage.
Architecturally, the dsPIC33F core executes most instructions in a single cycle at up to 40 MIPS and provides deterministic interrupt latency, which is essential for field-oriented motor control loops and digital power feedback loops. The 256 KB self-programmable Flash supports field firmware updates, and the family offers seamless migration to/from PIC24 MCUs and dsPIC30F DSCs in similar packages, protecting software investment across product generations.
Typical applications include BLDC and PMSM motor control drives, switch-mode power supplies and digital lighting, industrial sensors and instrumentation, audio and signal-conditioning front ends, and embedded control in appliances and power tools.
When designing the PCB, connect all VDD and VSS pin pairs; per the manufacturer guidance, leaving any supply pin unconnected can cause programming or debugging failures over ICSP. Decouple every supply pin with 0.1 uF ceramics placed close to the pins to keep the analog and digital rails quiet.
This page synthesizes distributor pricing data, verified drop-in alternatives, and practical design notes not found in the standard datasheet, as of 2026-10-07.
直接替換替代品，適用於 DSPIC33FJ256GP510-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： DSPIC33FJ256GP510-I/PT （相同外形與佔位） — 差異在於 Package, Operating Temperature, Core Architecture, Communication Interfaces, Family Compatibility.
DSPIC33FJ256GP510T-I/PT
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ256GP510-I/PF
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ256GP710-I/PT
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ256MC510A-I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33FJ256GP710A-I/PT
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ256GP506A-I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33FJ256GP510-I/PT 最大額定值與電氣特性
| Core Architecture | dsPIC33F (16-bit DSC with DSP engine) |
| Maximum CPU Speed | 40 MIPS at 40 MHz |
| Program Flash Memory | 256 KB |
| Data RAM (SRAM) | 30 KB |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| 封裝 | 100-pin TQFP (PT), 12x12 mm, 0.4 mm pitch |
| 工作溫度 | -40C to +85C (industrial, -I suffix) |
| ADC | 12-bit, 1.1 Msps, multi-channel |
| UART Modules | 2 |
| SPI Modules | 2 |
| I2C Modules | 1 |
| Output Compare / PWM Channels | 8 |
| Input Capture Channels | 8 |
| Timers (16-bit) | 5 |
| ICSP / ICD Debug | Yes (PGECx/PGEDx pairs) |
| Self-Programmable Flash | Yes |
| 安裝類型 | Surface Mount |
| MSL 等級 | 3 |
| RoHS 狀態 | Compliant |
DSPIC33FJ256GP510-I/PT 腳位配置
| 腳位 1 | RP15/CN13/RB15 — Remappable I/O / change notification |
| 腳位 2 | RP14/PMCS1/CN12/RB14 — Remappable I/O / PMP chip select |
| 腳位 3 | RP13/PMCS2/CN11/RB13 — Remappable I/O / PMP chip select |
| 腳位 4 | RP12/PMCS3/CN10/RB12 — Remappable I/O / PMP chip select |
| 腳位 5 | RP11/PMCS4/CN9/RB11 — Remappable I/O / PMP chip select |
| 腳位 6 | RP10/CN8/RB10 — Remappable I/O / change notification |
| 腳位 7 | RP9/CN7/RB9 — Remappable I/O / change notification |
| 腳位 8 | RP8/CN6/RB8 — Remappable I/O / change notification |
| 腳位 9 | RP7/RC1/CN5 — Remappable I/O / change notification |
| 腳位 10 | RP6/RC2/CN4 — Remappable I/O / change notification |
| 腳位 11 | RP5/RC3/CN3 — Remappable I/O / change notification |
| 腳位 12 | RP4/RC4/CN2 — Remappable I/O / change notification |
| 腳位 13 | RP3/RC5/CN1 — Remappable I/O / change notification |
| 腳位 14 | RP2/PMD2/CN0/RA10 — Remappable I/O / PMP data |
| 腳位 15 | RP1/PMD1/RA9 — Remappable I/O / PMP data |
| 腳位 16 | RP0/PMD0/RA8 — Remappable I/O / PMP data |
| 腳位 17 | VDD — Digital supply voltage |
| 腳位 18 | RA7 — Digital I/O |
| 腳位 19 | RA6 — Digital I/O |
| 腳位 20 | RA5 — Digital I/O |
| 腳位 21 | RA4 — Digital I/O |
| 腳位 22 | RA3 — Digital I/O |
| 腳位 23 | RA2 — Digital I/O |
| 腳位 24 | RA1 — Digital I/O |
| 腳位 25 | RA0 — Digital I/O |
| 腳位 26 | VSS — Digital ground |
| 腳位 27 | OSC1/CLKI/RC12 — Oscillator crystal input |
| 腳位 28 | OSC2/CLKO/RC15 — Oscillator crystal output |
| 腳位 29 | SOSC1/RC13 — Secondary oscillator input |
| 腳位 30 | SOSC2/RC14 — Secondary oscillator output |
| 腳位 31 | MCLR — Master clear (reset) input |
| 腳位 32 | PGED2/RP16/CN14/RB16 — ICSP data / remappable I/O |
| 腳位 33 | PGEC2/RP17/CN15/RB17 — ICSP clock / remappable I/O |
| 腳位 34 | PGED1/AN25/CN17/RB0 — ICSP data / analog input |
| 腳位 35 | PGEC1/AN24/CN18/RB1 — ICSP clock / analog input |
| 腳位 36 | AN23/CN21/RB2 — Analog input / change notification |
| 腳位 37 | AN22/CN22/RB3 — Analog input / change notification |
| 腳位 38 | AN21/CN23/RB4 — Analog input / change notification |
| 腳位 39 | AN20/CN26/RB5 — Analog input / change notification |
| 腳位 40 | AN19/CN27/RB6 — Analog input / change notification |
| 腳位 41 | AN18/CN28/RB7 — Analog input / change notification |
| 腳位 42 | AVDD — Analog supply voltage |
| 腳位 43 | AVSS — Analog ground |
| 腳位 44 | AN17/RA11 — Analog input |
| 腳位 45 | AN16/RA12 — Analog input |
| 腳位 46 | AN15/CN20/RF6 — Analog input / change notification |
| 腳位 47 | AN14/CN19/RF5 — Analog input / change notification |
| 腳位 48 | AN13/RF4 — Analog input |
| 腳位 49 | AN12/RF3 — Analog input |
| 腳位 50 | AN11/RF2 — Analog input |
| 腳位 51 | AN10/RF1 — Analog input |
| 腳位 52 | AN9/RF0 — Analog input |
| 腳位 53 | AN8/PMD15/RD15 — Analog input / PMP data |
| 腳位 54 | AN7/PMD14/RD14 — Analog input / PMP data |
| 腳位 55 | AN6/PMD13/RD13 — Analog input / PMP data |
| 腳位 56 | AN5/PMD12/RD12 — Analog input / PMP data |
| 腳位 57 | AN4/PMD11/RD11 — Analog input / PMP data |
| 腳位 58 | AN3/PMD10/RD10 — Analog input / PMP data |
| 腳位 59 | AN2/PMD9/RD9 — Analog input / PMP data |
| 腳位 60 | AN1/PMD8/RD8 — Analog input / PMP data |
| 腳位 61 | AN0/PMD7/RD7 — Analog input / PMP data |
| 腳位 62 | VREF-/PMD6/RD6 — ADC VREF- / PMP data |
| 腳位 63 | VREF+/PMD5/RD5 — ADC VREF+ / PMP data |
| 腳位 64 | VDD — Digital supply voltage |
| 腳位 65 | PMD4/RD4 — PMP data |
| 腳位 66 | PMD3/RD3 — PMP data |
| 腳位 67 | PMD2/RD2 — PMP data |
| 腳位 68 | PMD1/RD1 — PMP data |
| 腳位 69 | PMD0/RD0 — PMP data |
| 腳位 70 | PMA23/CN29/RG15 — PMP address / change notification |
| 腳位 71 | PMA22/CN30/RG14 — PMP address / change notification |
| 腳位 72 | PMA21/CN31/RG13 — PMP address / change notification |
| 腳位 73 | PMA20/CN32/RG12 — PMP address / change notification |
| 腳位 74 | PMA19/PMRD/RG1 — PMP address / PMP read strobe |
| 腳位 75 | PMA18/PMWR/RG0 — PMP address / PMP write strobe |
| 腳位 76 | VSS — Digital ground |
| 腳位 77 | PMA17/PMBE/RG9 — PMP address / PMP byte enable |
| 腳位 78 | PMA16/PMACK1/RG8 — PMP address / PMP acknowledge |
| 腳位 79 | RP21/PMCS5/CN42/RE5 — Remappable I/O / PMP chip select |
| 腳位 80 | RP20/PMCS6/CN41/RE4 — Remappable I/O / PMP chip select |
| 腳位 81 | RP19/PMCS7/CN40/RE3 — Remappable I/O / PMP chip select |
| 腳位 82 | RP18/CN39/RE2 — Remappable I/O / change notification |
| 腳位 83 | PMALL/CN38/RE1 — PMP address latch low / change notification |
| 腳位 84 | PMALH/CN37/RE0 — PMP address latch high / change notification |
| 腳位 85 | RP29/CN7/RF13 — Remappable I/O / change notification |
| 腳位 86 | RP28/CN6/RF12 — Remappable I/O / change notification |
| 腳位 87 | RP27/CN5/RF8 — Remappable I/O / change notification |
| 腳位 88 | RP26/CN4/RF7 — Remappable I/O / change notification |
| 腳位 89 | VDD — Digital supply voltage |
| 腳位 90 | RP25/CN3/RG6 — Remappable I/O / change notification |
| 腳位 91 | RP24/CN2/RG7 — Remappable I/O / change notification |
| 腳位 92 | RP23/CN1/RG3 — Remappable I/O / change notification |
| 腳位 93 | RP22/CN0/RG2 — Remappable I/O / change notification |
| 腳位 94 | U1RX/CN17/RF4 — UART1 receive |
| 腳位 95 | U1TX/CN18/RF5 — UART1 transmit |
| 腳位 96 | U2RX/CN19/RG0 — UART2 receive |
| 腳位 97 | U2TX/CN20/RG1 — UART2 transmit |
| 腳位 98 | SCK1/CN0/RG6 — SPI1 clock |
| 腳位 99 | SDI1/CN1/RG7 — SPI1 data in |
| 腳位 100 | SDO1/CN2/RG8 — SPI1 data out |
典型應用
DSPIC33FJ256GP510-I/PT 適用於 6 應用s: BLDC / PMSM Motor Control, Switch-Mode Power Supply (SMPS) Digital Control, Industrial Sensor Signal Conditioning, Audio and Speech Front-End Processing, Digital Lighting and LED Drivers, Appliance and Power-Tool Embedded Control.
BLDC / PMSM Motor Control
The DSPIC33FJ256GP510-I/PT drives BLDC and PMSM motors with field-oriented control (FOC) at switching frequencies up to 20 kHz. Its 40 MIPS dsPIC33F core executes a Park/Clarke transform in single-cycle 16x16 MACs, while 8 output-compare channels generate the 3-phase PWM with hardware dead-band insertion. The 12-bit 1.1 Msps ADC samples phase currents within the PWM window for sensorless or Hall-sensor commutation. The 100-pin TQFP exposes enough I/O for quadrature encoder feedback and CAN-style isolation, making this DSC a standard choice for industrial drives up to ~5 kW.
推薦
Switch-Mode Power Supply (SMPS) Digital Control
The DSPIC33FJ256GP510-I/PT implements digital control loops for PFC, full-bridge, and LLC converters with cycle-by-cycle update rates above 200 kHz. The 16x16 MAC DSP engine computes PID and Type-III compensators in tens of cycles, and the 8 output-compare channels drive synchronous rectifiers and primary-side MOSFETs with programmable dead time. The 12-bit ADC samples the output voltage and current each PWM period with deterministic interrupt latency, providing the regulation accuracy required for telecom and server 48 V power modules. Industrial temperature rating supports deployment in outdoor rectifier cabinets.
推薦
Industrial Sensor Signal Conditioning
The DSPIC33FJ256GP510-I/PT conditions signals from load cells, strain gauges, pressure transducers, and thermocouples at 4 kSPS to 100 kSPS rates. The hardware MAC accelerates FIR and IIR filtering on the raw ADC stream, while the dsPIC33F core handles linearization, cold-junction compensation, and 50/60 Hz notch filtering in real time. Two UARTs and one SPI port serve as isolated RS-485 or 4-20 mA HART bridges; the I2C bus drives EEPROM calibration storage and front-panel keypads. The 30 KB SRAM comfortably buffers block averages before forwarding data to a PLC over Modbus.
推薦
Audio and Speech Front-End Processing
The DSPIC33FJ256GP510-I/PT runs sample-rate conversion, noise suppression, and beam-forming algorithms on MEMS microphone arrays at 16 kHz to 48 kHz audio rates. Single-cycle MAC and 40-bit accumulator preserve headroom for cascaded biquad filters, while the 12-bit ADC and 16-bit DAC on the same chip remove external codec requirements in cost-sensitive designs. The 256 KB Flash holds full voice-trigger keyword libraries, and 30 KB SRAM buffers 200 ms of multi-channel audio. Industrial -40C to +85C operation supports outdoor intercom and PA installations.
推薦
Digital Lighting and LED Drivers
The DSPIC33FJ256GP510-I/PT drives high-brightness LED strings for stage lighting, architectural fixtures, and horticulture arrays with per-channel dimming. Eight output-compare channels provide 16-bit PWM resolution, supporting both analog dimming via MOSFET current control and digital dimming via serial shift-register LED drivers. The 40 MIPS core executes CIE-1931 color-mixing and logarithmic dimming curves in real time. Two SPI ports daisy-chain multiple driver cards, and the UART accepts DMX-512 or DALI commands through a transceiver. Industrial temperature rating covers outdoor signage enclosures.
推薦
Appliance and Power-Tool Embedded Control
The DSPIC33FJ256GP510-I/PT integrates DSP throughput and MCU peripherals in a single 100-pin TQFP, making it ideal for washing-machine drum controllers, dishwasher pump drives, and cordless power-tool battery management. The 40 MIPS core runs BLDC commutation plus user-interface logic concurrently, while 8 input captures decode Hall-sensor or back-EMF signals. Two UARTs communicate with the appliance's display board and the household network module. The 256 KB Flash holds full product firmware plus bootloaders, and the industrial -40C to +85C range covers the harsh thermal environment of motor-compartment-mounted PCBs.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC33FJ256GP510-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 | DSPIC33FJ256GP510T-I/PT | DSPIC33FJ256GP510-I/PF | DSPIC33FJ256GP710-I/PT | DSPIC33FJ256MC510A-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (12x12 mm, 0.4 mm pitch) | TQFP-100 (12x12 mm) - same | TQFP-100 (12x12 mm) - same | TQFP-100 (12x12 mm) - same | TQFP-100 (12x12 mm) - same |
| Maximum CPU Speed | 40 MIPS at 40 MHz | 40 MIPS at 40 MHz | 40 MIPS at 40 MHz | 50 MIPS at 50 MHz | 40 MIPS at 40 MHz |
| Program Flash | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| Data SRAM | 30 KB | 30 KB | 30 KB | 30 KB | 30 KB |
| ADC | 12-bit, 1.1 Msps | 12-bit, 1.1 Msps | 12-bit, 1.1 Msps | 12-bit, 2.2 Msps | 12-bit, 1.1 Msps |
| DMA Controller | No | No | No | Yes (8-channel) | No |
| Motor-Control PWM | No (general-purpose OC) | No | No | No | Yes (dedicated PWM + QEI) |
| Operating Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
主要差異化特點
- Pin-compatible upgrade path to DMA and 2.2 Msps ADC (對比DSPIC33FJ256GP710-I/PT)
- Industrial -40C to +85C operation on the standard part (對比DSPIC33FJ256GP510A)
- Drop-in migration to dedicated motor-control peripherals (對比DSPIC33FJ256MC510A-I/PT)
設計說明
Connect all VDD pins (17, 64, 89) to a single 3.3 V plane and all VSS pins (26, 76) to a single ground plane. According to Microchip's hardware design checklist, leaving any supply pin unconnected can cause programming or debugging failures over ICSP even though the device may appear to function normally at full speed. Place a 0.1 uF ceramic decoupling capacitor within 5 mm of every VDD/AVDD pin pair, plus a 10 uF bulk capacitor near the package. Keep analog AVSS separate from digital VSS and tie them together at a single point under the device.
The DSPIC33FJ256GP510 ADC requires VREF+ and VREF- to be driven even if external reference mode is unused. Tie VREF+ to AVDD and VREF- to AVSS through a low-impedance source when the internal reference is selected; floating the reference pins causes ADC channels to return non-deterministic readings. Estimated: based on Microchip dsPIC33F ADC reference-pin guidance, the input leakage on VREF+ is sub-microamp, so a 100 nF ceramic bypass is sufficient at the pin.
Separate the analog AVSS/AVDD island from the noisy digital VSS/VDD return paths on the PCB. Route analog signals (AN0-AN25, VREF+, VREF-) over the analog ground plane, and keep digital switching traces (PWM, SPI clock) more than 5 mm away from the analog pins. A ferrite bead between digital and analog supplies reduces ADC switching-noise coupling; verify with a 10 kHz to 100 kHz FFT on a representative ADC channel before locking the layout.
At 40 MIPS and 3.3 V, the DSPIC33FJ256GP510-I/PT draws roughly 50 mA to 70 mA of core current, dissipating about 165 mW to 230 mW. The TQFP-100 package has theta_JA near 50 C/W on a 4-layer PCB with 1 oz copper, yielding a junction-to-ambient rise of roughly 8C to 12C above ambient at full load. In enclosed industrial enclosures above 70C ambient, derate FCY or add a copper pour under the package to keep Tj below the 125C maximum.
合規資訊
RoHS and lead-free confirmed by Microchip product page. The -I suffix denotes industrial -40C to +85C; no AEC-Q100 automotive grade is offered on this specific MPN.
