DSPIC33FJ64GP804T-I/PT - 16-bit DSC 40 MIPS 64KB Flash | Microchip
MPN： DSPIC33FJ64GP804T-I/PT ✓ 啟用中DSPIC33FJ64GP804T-I/PT 概覽
A Digital Signal Controller combines the peripheral set and ease of use of a microcontroller with the computational throughput of a digital signal processor. In the power-management IC hierarchy, the DSC sits above a plain MCU because it adds DSP-class multiply-accumulate instructions, hardware fractional arithmetic, and high-speed ADC sampling, while retaining Flash self-programming, interrupts, and familiar development tools such as MPLAB X and the Explorer 16/32 Development Board.
Key features of this device include the 40 MIPS dsPIC33F core executing an enhanced 16-bit instruction set with DSP extensions, 64 KB of self-programmable Flash, integrated DMA for data movement without CPU intervention, and multiple serial communications engines suited to motor control, digital power, and audio signal chains. The 21 I/O ports provide flexible peripheral mapping across the 44-pin footprint.
From an architecture standpoint, the dsPIC33FJ64GP804 belongs to Microchip's GP (general purpose) family of dsPIC33FJ devices, which pairs the 16-bit CPU with advanced analog peripherals and supports the PIC24F, dsPIC, and PIC32 tool ecosystem. Software libraries, code examples, and Plug-In Modules (PIMs) are shared across the family, reducing development risk when scaling Flash density within the same pinout.
Typical applications include digital power supplies and power factor correction, sensorless motor control drives, industrial automation nodes, and embedded audio or communications processing where 40 MIPS of DSP throughput at 3.3V is sufficient.
When designing with this DSC, budget the 3.0V-3.6V rail carefully and place 0.1uF decoupling capacitors at every VDD/VSS pair; the tape-and-reel (1200 units) packing suits automated SMT assembly lines.
This page synthesizes distributor pricing, same-brand drop-in alternatives within the dsPIC33FJ 44-pin TQFP family, and practical design notes not consolidated in the manufacturer datasheet.
直接替換替代品，適用於 DSPIC33FJ64GP804T-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： DSPIC33FJ64GP804T-I/PT （相同外形與佔位） — 差異在於 Core Architecture, Operating Temperature, Package, RoHS Status, Supply Voltage.
DSPIC33FJ64GP204T-I/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33FJ128GP804T-I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33FJ32GP204-I/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33FJ32MC304-E/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33FJ64GP804T-E/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33FJ64GP804T-I/PT 最大額定值與電氣特性
| Core Architecture | 16-bit dsPIC33F DSC |
| Maximum Clock / Performance | 40 MIPS |
| Program Memory Type | Flash |
| Flash Program Memory | 64 KB |
| Supply Voltage Range | 3 V to 3.6 V |
| DMA Controller | Yes |
| I/O Ports | 21 |
| 腳位數 | 44 |
| 封裝 | 44-pin TQFP (PT), 10 x 10 mm |
| 工作溫度範圍 | -40C to +85C |
| 安裝類型 | Surface Mount |
| Packing Media | Tape and Reel (1200 units) |
| Life Cycle Stage | Active |
| Lead Finish | Lead free |
| Country of Origin | Philippines, Thailand |
DSPIC33FJ64GP804T-I/PT 44-pin tqfp (pt), 10 x 10 mm 腳位配置指南
DSPIC33FJ64GP804T-I/PT（44-pin tqfp (pt), 10 x 10 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： DSPIC33FJ64GP804T-I/PT.
請參閱 資料表 以查看完整腳位配置。
典型應用
DSPIC33FJ64GP804T-I/PT 適用於 6 應用s: Digital Power Supplies, Motor Control Drives, Industrial Automation Nodes, Embedded Audio Processing, Test and Measurement Instruments, Consumer and IoT Edge Devices.
Digital Power Supplies
Digital power supplies and power factor correction stages benefit directly from the DSPIC33FJ64GP804T-I/PT's 40 MIPS DSP core and on-chip DMA. The controller can execute current-loop compensation at hundreds of kilohertz while DMA streams ADC samples into RAM without CPU intervention, keeping loop latency deterministic. In a typical topology the DSC reads output voltage and inductor current through its analog front end, computes the control law with fractional DSP instructions, and drives PWM outputs; unlike analog-only controllers, compensation coefficients can be updated in firmware. Flash self-programming allows field updates of control firmware in the same 3.0-3.6 V rail as the gate-driver logic.
推薦
Motor Control Drives
Sensorless BLDC and PMSM motor drives are a core use case for the DSPIC33FJ64GP804T-I/PT. The 40 MIPS core executes field-oriented control math with single-cycle multiply-accumulate instructions, while the DMA offloads ADC sampling of phase currents and the DC bus. The 21 I/O ports give enough pins for a three-phase inverter gate interface, encoder or hall inputs, and a communications link, all within the 44-pin TQFP footprint. Running from a 3.3 V rail at -40C to +85C suits industrial drive environments; the same PCB can host the pin-compatible DSPIC33FJ32MC304-E/PT if a motor-control-peripheral-optimized variant becomes preferable.
推薦
Industrial Automation Nodes
Industrial automation nodes - sensors, actuators, and fieldbus endpoints - use the DSPIC33FJ64GP804T-I/PT where 64 KB of Flash is sufficient for protocol stacks plus application logic. The industrial -40C to +85C rating matches cabinet and machine-mounted electronics, and the 3.0-3.6 V supply integrates cleanly with 3.3 V logic rails. The DMA controller keeps UART/SPI data transfers running during control loops, and the 44-pin TQFP's 21 I/O lines accommodate digital I/O expansion. The tape-and-reel packing (1200 units) supports volume SMT production, and the active lifecycle status protects long-term availability for factory equipment service lives.
推薦
Embedded Audio Processing
Embedded audio products use the DSPIC33FJ64GP804T-I/PT for codec control, audio effect processing, and signal routing where a full DSP is oversized. The 40 MIPS DSP core handles FIR/IIR filtering and mixing at audio sample rates with margin, while DMA moves sample buffers between the serial audio interface and RAM. The GP family's serial peripherals connect to external audio codecs over I2C/SPI for volume, EQ, and route control. Because the family is pin-compatible across 32/64/128 KB Flash variants in the same 44-pin TQFP, product tiers can share one PCB, upgrading to DSPIC33FJ128GP804T-I/PT only for feature-rich SKUs.
推薦
Test and Measurement Instruments
Bench and portable test instruments use the DSPIC33FJ64GP804T-I/PT as a control and signal-processing engine. The 40 MIPS core and DSP instruction set implement waveform averaging, triggering logic, and calibration math, while DMA services the ADC sampling stream to keep measurement timing jitter low. The 44-pin TQFP with 21 I/O ports drives front-panel buttons, displays, and relay attenuators, and the -40C to +85C industrial rating covers unconditioned environments. Its 3.0-3.6 V supply simplifies power-tree design alongside 3.3 V display and interface ICs, and the active lifecycle and Microchip tool ecosystem (MPLAB X, Explorer 16/32) speed firmware development.
推薦
Consumer and IoT Edge Devices
Consumer appliances and IoT edge nodes adopt the DSPIC33FJ64GP804T-I/PT when sensor signal processing exceeds plain-MCU capability but unit cost must stay low. At roughly $5.78 per unit (as of 2026-09-27, LCSC), the device delivers 40 MIPS DSP throughput, DMA, and 64 KB Flash in a compact 10 x 10 mm TQFP. Typical roles include power-metering front ends, appliance motor feedback, and acoustic sensor processing. The 3.0-3.6 V rail and low pin-count footprint suit dense consumer PCBs; volume production benefits from the 1200-unit tape-and-reel, and the pin-compatible family allows Flash-tiering across product variants without layout changes.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC33FJ64GP804T-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 | DSPIC33FJ64GP204T-I/PT | DSPIC33FJ128GP804T-I/PT | DSPIC33FJ32GP204-I/PT | DSPIC33FJ32MC304-E/PT | DSPIC33FJ64GP804T-E/PT |
|---|---|---|---|---|---|---|
| Package | 44-TQFP (PT), 10x10 mm | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 64 KB | 64 KB | 128 KB | 32 KB | 32 KB | 64 KB |
| Core Performance | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Supply 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 | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | Extended (E) range | Extended (E) range |
| Peripheral Family | GP (general purpose) | GP | GP | GP | MC (motor control) | GP |
主要差異化特點
- Flash upgrade path without redesign (對比DSPIC33FJ128GP804T-I/PT)
- Full GP peripheral richness at 44 pins (對比DSPIC33FJ64GP204T-I/PT)
- Broader application coverage than MC-family parts (對比DSPIC33FJ32MC304-E/PT)
設計說明
The DSPIC33FJ64GP804T-I/PT requires a tightly regulated 3.0 V to 3.6 V rail. Place a low-ESR 0.1uF ceramic capacitor at every VDD/VSS pair of the 44-pin TQFP, plus a bulk 10uF capacitor near the device. If the board is powered from 5 V or 24 V, use an LDO or buck converter with adequate transient response - DSC core current steps occur during Flash programming and DMA bursts. Verify the regulator stays within 3.6 V under all load transients, since exceeding the absolute maximum on VDD can permanently damage the device.
For the 10 x 10 mm TQFP-44, keep the analog and digital grounds as a single plane but partition component placement: route the analog front-end traces (ADC inputs) away from PWM and switching-node traces to prevent noise coupling into measurements. Use short, direct traces for the programming/debug connector (MCLR, PGD, PGC) and add a series resistor on MCLR for ICSP robustness. Decouple the VDD core pins before routing anything else - this ordering saves rework during EMC testing of digital power or motor-drive applications.
Do not assume pin-for-pin identity when substituting across the dsPIC33FJ 44-pin family: while the TQFP-44 footprint is shared, peripheral mapping (ADC channel assignments, remappable pin functions) differs between the GP204, GP804, and MC304 groups. Recompile firmware with the correct device header and re-verify the pinout against the family datasheet before layout reuse. Also note the T suffix denotes tape-and-reel packing (1200 units) - ordering the non-T MPN for prototypes avoids excess reel inventory.
合規資訊
Microchipdirect lists the package as lead free; the digchip listing confirms a lead-free plastic TQFP-44. Full RoHS/REACH certificates are available via Microchip's Material Compliance portal referenced on the product page.
