DSPIC33FJ32GP304T-I/PT - 16-Bit 40 MIPS DSC 32KB Flash | Microchip
料号： DSPIC33FJ32GP304T-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.12 | $6.12 |
| 10 | $5.51 | $55.10 |
| 25 | $5.14 | $128.50 |
| 100 | $4.59 | $459.00 |
| 1,000 | $4.06 | $4,060.00 |
DSPIC33FJ32GP304T-I/PT 概述
A digital signal controller combines the computational engine of a microcontroller with DSP-grade multiply-accumulate hardware on one chip. In the system hierarchy, the dsPIC33F family sits between general-purpose microcontrollers (such as the PIC18) and dedicated DSPs, giving designers a single-chip solution that executes control loops and real-time signal processing without a separate DSP device.
Key features include a 16-bit modified Harvard RISC core with DSP instructions, 8-channel DMA, 7 timers, and 3 serial I/O ports (UART, SPI, I2C). The family integrates high-speed PWM, an ADC, and up to four high-speed comparators with direct connections, enabling motor control and power-conversion topologies without external analog front-end components. The T suffix denotes tape-and-reel packaging for automated assembly.
Architecturally, the core pairs the 16-bit MCU pipeline with two 40-bit accumulators, 17-bit x 17-bit single-cycle multiplication and division support, so FIR filters, PID loops, and transforms execute deterministically at 40 MIPS. DMA offloads peripheral data movement from the CPU, reducing jitter in control applications.
Typical applications include digital power supplies and LED drivers, sensorless BLDC and PMSM motor control, audio signal processing, and industrial sensing nodes that need integrated analog plus fast math.
Design consideration: decouple the 3.3V rail with 0.1uF ceramics at every VDD/VSS pair and keep the analog supply clean to preserve ADC accuracy; Flash-based self-programming lets field updates over UART or CAN without a separate bootloader chip.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with prices as of 2026-09-27.
直接替换替代料： DSPIC33FJ32GP304T-I/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DSPIC33FJ32GP304T-I/PT （相同外形与封装尺寸） ——差异在于 Core Architecture, Supply Voltage, Package, Operating Temperature, I/O Ports.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ32GP304-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.29 / 个
查看数据手册 →DSPIC33FJ32GP304T-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ32GP204-I/PT
✅ 直接替换✓ 有现货
$3.78 / 个
查看数据手册 →DSPIC33FJ32GP204-E/PT
✅ 直接替换✓ 有现货
$3.15 / 个
查看数据手册 →DSPIC33FJ32MC304-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.78 / 个
查看数据手册 →DSPIC33FJ16GP304-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ32GP304T-I/PT 最大额定值与电气特性
| Core Architecture | 16-bit dsPIC33F RISC with DSP engine |
| Maximum Clock Speed | 40 MHz |
| Performance | 40 MIPS |
| Program Memory | 32 KB (32K x 8) Flash |
| RAM Size | 4 KB SRAM |
| 电源电压 | 3 V to 3.6 V |
| I/O Ports | 35 I/O |
| DMA Channels | 8 |
| Timers | 7 |
| Serial Interfaces | 3 serial I/O ports (UART, SPI, I2C) |
| Analog Peripherals | ADC, high-speed PWM, comparators |
| Package Type | 44-TQFP, 10 x 10 mm, 1 mm height, plastic |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to +85C (I grade) |
| Packaging | Tape and Reel (T suffix) |
| Lead Free | Yes |
| 生命周期状态 | Active |
DSPIC33FJ32GP304T-I/PT 44-tqfp, 10 x 10 mm, 1 mm height, plastic 引脚配置指南
DSPIC33FJ32GP304T-I/PT（44-tqfp, 10 x 10 mm, 1 mm height, plastic 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： DSPIC33FJ32GP304T-I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33FJ32GP304T-I/PT 适用于 6 应用s: Digital Power Supplies, BLDC/PMSM Motor Control, Audio Signal Processing, Industrial Sensing Nodes, Embedded Control and HMI, Power Monitoring and Metering.
Digital Power Supplies
The DSPIC33FJ32GP304T-I/PT fits digital power conversion because its high-speed PWM, integrated ADC, and up to four high-speed comparators with direct connections close control loops on a single chip. Running at 40 MIPS with single-cycle MAC instructions, the core executes voltage-mode or current-mode compensators in the tens-of-kHz range with deterministic latency, and the 8 DMA channels stream ADC samples into 4KB SRAM without CPU loading. It is typically placed in the feedback path between output sensing dividers and the power stage gate drivers, replacing analog error amplifiers with firmware. Unlike an analog controller, firmware gains and nonlinearities adapt at runtime; the trade-off is a mandatory firmware development effort and careful PWM dead-time verification.
推荐
BLDC/PMSM Motor Control
Sensorless BLDC and PMSM drives benefit directly from this DSC's combination of 40 MIPS DSP math, high-speed PWM, and comparators. Field-oriented control demands a fast current loop: the integrated ADC samples phase currents, the DMA moves samples without CPU intervention, and the DSP engine computes Park/Clarke transforms and PID stages within the PWM period. The 44-TQFP package exposes 35 I/O, enough for a three-phase inverter, encoder or hall inputs, and UART/CAN communication. According to the Microchip family description, comparators connect directly to PWM for cycle-by-cycle overcurrent protection without software delay. Choose the DSPIC33FJ32MC304 drop-in variant if you need motor-control-specific PWM complements.
推荐
Audio Signal Processing
The GP (general purpose) tier of the dsPIC33FJ family targets audio and sensing signal chains where integrated analog and fast math matter. The 40-bit accumulators and single-cycle multiply-accumulate support FIR and IIR filters, automatic gain control, and tone generation at 40 MIPS, which is sufficient for audio preprocessing below 48 kHz sample rates. The 3 serial I/O ports implement I2S-style data links via SPI or talk to audio codecs over I2C, and 8 DMA channels keep sample streams continuous without interrupt storms. The 3.0V to 3.6V supply keeps the analog front end quiet when decoupled properly. For full-fidelity audio DSP workloads, a dedicated codec plus this DSC remains a common low-cost architecture.
推荐
Industrial Sensing Nodes
Factory and process sensing nodes use the DSPIC33FJ32GP304T-I/PT to combine acquisition, filtering, and communication on one chip. The integrated ADC plus comparators digitize sensor front ends directly, while DSP filtering rejects line-frequency noise in firmware instead of with expensive analog stages. Three serial ports cover RS-485-style UART links, SPI sensor buses, and I2C to calibration EEPROMs simultaneously, and the industrial -40C to +85C rating matches harsh cabinet environments. The 8-channel DMA keeps ADC streaming deterministic at high sample rates, and 4KB SRAM holds filter history and small protocol buffers. The 44-TQFP 10x10 mm footprint suits dense DIN-rail and cable-mounted module PCBs.
推荐
Embedded Control and HMI
General embedded controllers and human-machine interfaces leverage the 35 I/O, 7 timers, and Flash self-programming of this DSC. The 40 MIPS core runs state machines, display refresh, and keypad scanning with ample headroom, while the 32KB Flash stores application code plus a bootloader for field updates over UART. High-speed PWM can drive backlight dimming or buzzer outputs without extra peripherals. Compared with an 8-bit PIC18 controller, the 16-bit core handles 16-bit arithmetic and table lookups natively, cutting loop times roughly by half or better per MHz. The industrial temperature range and lead-free 44-TQFP package support standard reflow assembly for control panels, meters, and small appliances.
推荐
Power Monitoring and Metering
Energy metering and power-quality monitoring designs fit this part's analog-plus-DSP profile well. The ADC samples voltage and current channels simultaneously, and the DSP engine computes RMS, active/reactive power, and harmonic content with single-cycle MAC operations at 40 MIPS, sufficient for fundamental-frequency extraction in 50/60 Hz systems with margin for higher harmonics. DMA channels maintain gapless sample streams into the 4KB SRAM ring buffers so no cycles are missed between ADC conversions and computation. Comparators provide fast threshold alarms independent of software. The 3.0V to 3.6V single-rail operation simplifies isolation design, and UART links report data to a gateway while keeping the MCU dedicated to measurement.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ32GP304T-I/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DSPIC33FJ32GP304-I/PT | DSPIC33FJ32GP304T-E/PT | DSPIC33FJ32GP204-I/PT | DSPIC33FJ16GP304-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 |
| Core / Performance | 16-bit dsPIC33F, 40 MIPS | 16-bit, 40 MIPS | 16-bit, 40 MIPS | 16-bit, 40 MIPS | 16-bit, 40 MIPS |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB |
| Operating Temperature | -40C to +85C (I) | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| Peripheral Tier | GP (general purpose) analog set | GP | GP | GP (reduced analog set) | GP |
| Packaging | Tape & Reel (T) | Tray | Tape & Reel | Tray | Tape & Reel |
关键差异点
- Full 32KB Flash at GP-tier cost （对比 DSPIC33FJ16GP304-I/PT)
- Industrial temperature at lower cost than extended grade （对比 DSPIC33FJ32GP304T-E/PT)
- Larger analog/peripheral complement than 20x tier （对比 DSPIC33FJ32GP204-I/PT)
设计说明
The 44-TQFP provides multiple VDD/VSS pairs; connect all of them and place a 0.1uF ceramic capacitor at every supply pin pair, plus one bulk 4.7uF to 10uF per rail. Keep the analog supply region isolated from PWM and switching-node routing to preserve ADC and comparator accuracy. Route the crystal or external clock traces short and guard them with ground. Estimated: at 40 MIPS with typical I/O loading, core current stays in the tens-of-mA range, so IR drop on a 2-layer board is minor, but decoupling placement dominates noise performance.
The dsPIC33FJ core is a 3.0V to 3.6V device and is not 5V tolerant; level-shift any 5V signal interfaces (RS-232, legacy sensors). Confirm the compiler-configured clock source and PLL settings before first programming - a mismatched oscillator configuration is the most common bring-up failure on this family. When using DMA with the ADC, ensure buffer sizes fit within the 4KB SRAM alongside the stack and heap; overflow manifests as intermittent corruption rather than a clean fault.
The 44-TQFP (10x10 mm) plastic package in a 3.3V, sub-100mA design dissipates well under 0.5W (Estimated: P = 3.3V x ~60mA typical core-plus-I/O current, roughly 0.2W), so no heatsink is needed within the -40C to +85C industrial rating. For the -E extended-grade variant used above 85C ambient, verify total dissipation against the datasheet junction limits; reducing I/O drive currents and PWM loading are the first levers. Solid ground pour under the package further lowers the effective thermal resistance.
合规信息
Package described as lead-free plastic per digchip specification data ('LEAD FREE, PLASTIC' 44-TQFP). REACH, halogen-free, and conflict minerals status not stated in provided data.
