DSPIC33FJ32GP104-I/PT - 16-Bit DSC 16 MIPS 32KB Flash | Microchip
MPN： DSPIC33FJ32GP104-I/PT ✓ 啟用中DSPIC33FJ32GP104-I/PT 概覽
A digital signal controller combines the deterministic architecture and peripheral set of a microcontroller with the multiply-accumulate (MAC) DSP engine of a digital signal processor. In the power-management hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP: it runs C code with fast interrupt context switching while executing single-cycle DSP instructions, which is why the dsPIC33 family dominates cost-sensitive digital power, sensing and motor control designs.
Key features of this part include the 16-bit modified Harvard core with DSP instruction support (MAC, modulo addressing, bit-reversed addressing), 32KB self-programming Flash with ECC-free sector erase, and a General Purpose (GP) peripheral set. Supply voltage is 3.3V (2.97V to 3.63V typical class), and the CMOS process supports low-power idle and sleep modes for battery-conscious designs.
Architecturally, the dsPIC33FJ core pairs a 16-bit CPU with a dedicated 17-bit x 17-bit multiplier and 40-bit accumulator, allowing filter loops and control-law computations to execute in single cycles. Program memory is Flash with 1000 erase/write cycles minimum, and the interrupt controller supports nested vectored interrupts for deterministic control-loop latency. In-circuit serial programming (ICSP) and in-circuit debugging are supported through PGECx/PGEDx pin pairs using MPLAB X IDE with the MPLAB Snap, PICkit or ICD programmers.
Typical applications include digital power supplies and power-factor-correction stages, sensor signal conditioning and industrial automation nodes, plus portable instrumentation where 16 MIPS of DSP headroom and industrial temperature range are required without the cost of a full DSP.
Design-wise, connect all VDD and VSS pin pairs - floating even one pair prevents programming - and keep the PGEC/PGED pin pairs matched during ICSP routing as Microchip support documentation requires.
This page synthesizes distributor inventory data, same-family drop-in alternatives, and practical layout guidance not consolidated in the manufacturer datasheet 70000652f.
直接替換替代品，適用於 DSPIC33FJ32GP104-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： DSPIC33FJ32GP104-I/PT （相同外形與佔位） — 差異在於 Package, Core Architecture, Operating Temperature, Max CPU Speed, RoHS Status.
DSPIC33FJ32GP304-I/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33FJ32GP104-E/PT
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33FJ32MC104-I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33FJ64GP304-I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33FJ16GP304-I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33FJ32GP104-I/PT 最大額定值與電氣特性
| Core Architecture | 16-bit dsPIC33FJ RISC with DSP engine |
| Maximum CPU Speed | 16 MIPS |
| Program Memory Size | 32 KB (11K x 24) Flash |
| RAM Size | 2 KB |
| 供應電壓 | 3.3 V |
| 工作溫度 | -40C to +85C (I grade) |
| 封裝 | 44-TQFP (10x10 mm), 0.8 mm terminal pitch |
| 安裝類型 | Surface Mount |
| Series | dsPIC33FJ32GP (General Purpose) |
| Technology | CMOS |
| Programming / Debug | ICSP via PGECx/PGEDx pairs (MPLAB X IDE, MPLAB Snap) |
| Low Power Modes | Supported (idle, sleep) |
| RoHS 狀態 | Compliant (per distributor listing) |
| Packaging | Tray (per Future Electronics listing) |
DSPIC33FJ32GP104-I/PT 44-tqfp (10x10 mm), 0.8 mm terminal pitch 腳位配置指南
DSPIC33FJ32GP104-I/PT（44-tqfp (10x10 mm), 0.8 mm terminal pitch 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： DSPIC33FJ32GP104-I/PT.
請參閱 資料表 以查看完整腳位配置。
典型應用
DSPIC33FJ32GP104-I/PT 適用於 6 應用s: Digital Power Supply Control, Industrial Automation Nodes, Sensor Signal Conditioning, Portable Instrumentation, Motor Control Subsystems, Embedded Communication Interfaces.
Digital Power Supply Control
The DSPIC33FJ32GP104-I/PT is well suited to closing control loops in digital AC-DC and DC-DC converters. Its 16-bit core with a single-cycle DSP multiply-accumulate engine runs compensator and PFC algorithms deterministically at 16 MIPS, while on-chip ADC and PWM peripherals sample and drive the power stage without external controllers. Implemented between the feedback divider and gate-driver inputs with the ICSP pins reserved for field firmware updates, the DSC replaces hardwired analog control with tunable digital control. The trade-off versus analog control is firmware development effort; the benefit is adaptability across output voltages and standards using one PCB. Industrial -40C to +85C operation covers most power-supply environments.
推薦
Industrial Automation Nodes
In factory automation, the DSPIC33FJ32GP104-I/PT serves as the control element in sensor hubs, actuator drivers and small PLC I/O modules. The 16-bit dsPIC33FJ core processes filtered sensor readings using DSP instructions at 16 MIPS while the GP peripheral set handles serial links to the network layer, and the 32KB Flash accommodates protocol stacks with headroom for field updates. The industrial -40C to +85C rating and 3.3V CMOS operation align with standard control-cabinet conditions, and idle/sleep modes cut power in always-on monitoring nodes. Programming and in-service debugging occur through any PGECx/PGEDx pair via MPLAB X IDE, simplifying maintenance on installed hardware without desoldering the 44-TQFP device.
推薦
Sensor Signal Conditioning
The DSPIC33FJ32GP104-I/PT fits front-end conditioning of analog sensors such as pressure bridges, thermocouples and current shunts. The DSP engine executes FIR/IIR filters and RMS computation in single-cycle MAC instructions at 16 MIPS, converting noisy raw ADC streams into stable engineering values on-chip, and the GP family ADC integrates the acquisition chain. With 2KB of RAM, the part buffers multiple sensor channels for burst analysis while maintaining a 3.3V single-supply interface to standard analog front ends. Designing the board with the GP304 pin-compatible variant in mind lets you add DMA-driven multi-channel sampling later without PCB change, making this DSC a low-risk choice for evolving sensor platforms.
推薦
Portable Instrumentation
Handheld and bench instruments benefit from the DSPIC33FJ32GP104-I/PT's balance of computation and power. The 3.3V CMOS core with idle and sleep modes conserves battery between measurements, while 16 MIPS of DSP performance computes FFT-based analysis, calibration curves and display scaling locally, removing dependence on an external processor. The 32KB Flash stores menus, lookup tables and measurement routines, and the 44-TQFP 10x10mm footprint fits compact mainboards. Per Microchip documentation, all VDD/VSS pairs must be connected in the layout for reliable ICSP reprogramming in the field, enabling firmware feature updates across a product's service life without hardware revision.
推薦
Motor Control Subsystems
Although the MC variant targets motors specifically, the GP104 runs scalar V/f control and DC motor control loops effectively with its 16 MIPS DSP core and PWM-capable peripherals. Single-cycle MAC instructions execute current-loop filters, and the industrial temperature rating suits drive environments. For sensorless FOC with high-resolution PWM, migrate to the pin-compatible DSPIC33FJ32MC104-I/PT, which replaces GP analog blocks with motor-control peripherals on the same 44-TQFP footprint - a zero-rework migration path. Design the board with the MC pin functions documented from the shared datasheet 70000652f pinout so either part can be populated depending on final control algorithm requirements and unit cost targets.
推薦
Embedded Communication Interfaces
The GP104 serves as a protocol bridge and intelligent node in systems linking UART, SPI and I2C buses - for example translating Modbus RTU on a UART to SPI peripherals, or managing RS-485 field wiring. The 16-bit core at 16 MIPS handles framing, CRC computation and buffering within its 2KB RAM for typical fieldbus message sizes, while 32KB Flash holds multiple protocol stacks with room for updates. Data verification should be modeled on Microchip's CRC-capable peripherals, and the part's deterministic interrupt latency keeps turnaround times predictable in master/slave polling. The ICSP PGEC/PGED pairs should be routed to a header so protocol firmware can be reflashed during commissioning.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC33FJ32GP104-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 | DSPIC33FJ32GP304-I/PT | DSPIC33FJ32GP104-E/PT | DSPIC33FJ32MC104-I/PT | DSPIC33FJ64GP304-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Performance | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS |
| Program Flash | 32 KB (11K x 24) | 32 KB | 32 KB | 32 KB | 64 KB (+100%) |
| RAM | 2 KB | 4 KB | 2 KB | 2 KB | 4 KB |
| Peripheral Focus | General Purpose (GP) | General Purpose + DMA | General Purpose (same die) | Motor Control (MC) | General Purpose + DMA |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C (E grade) | -40C to +85C | -40C to +85C |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
主要差異化特點
- Lowest-cost entry into 32KB GP family at 44-TQFP (對比DSPIC33FJ32GP304-I/PT)
- Extended temperature variant available with zero PCB change (對比DSPIC33FJ32GP104-E/PT)
- General-purpose analog/peripheral mix vs motor-control mix (對比DSPIC33FJ32MC104-I/PT)
設計說明
Connect every VDD and VSS terminal pair on the 44-TQFP. Microchip's ICSP support documentation (northernsoftware.com dsPIC33FJ32GP104 page) states that even one unconnected supply pair prevents programming and debugging. Place 0.1uF ceramic decoupling capacitors directly at each VDD pin with short returns to the ground plane, and reserve space for a bulk 10uF near the regulator.
Route ICSP signals as matched PGECx/PGEDx pairs to a 5- or 6-pin programming header. You must use pins from the same pair (e.g., PGEC2 with ICSPCLK and PGED2 with ICSPDAT) - mixing pairs from different indexes breaks ICSP. Keep these traces short and away from switching-node nets in power applications to avoid corrupted in-circuit debug sessions on the 0.8mm-pitch TQFP.
Run the dsPIC33FJ32GP104 from a clean 3.3V rail; this dsPIC33FJ generation is not wide-voltage and does not tolerate 5V logic directly, so level-shift any 5V signals at the pins. Estimated: a DSC at 16 MIPS draws in the tens-of-mA class from the 3.3V rail, so a 100-200mA LDO or buck output typically suffices - verify against the datasheet electrical characteristics for your peripheral loading before finalizing the supply budget.
合規資訊
RoHS compliance and lead-free finish inferred from /PT ordering code and distributor RoHS listings. REACH, halogen-free and conflict-minerals declarations should be confirmed via Microchip's product compliance portal.
