PIC24FJ32GP205T-I/PT - 16-bit MCU, 32KB Flash, 48-TQFP | Microchip
料号： PIC24FJ32GP205T-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.88 | $28.80 |
| 100 | $2.55 | $255.00 |
| 500 | $2.28 | $1,140.00 |
| 1,000 | $2.02 | $2,020.00 |
PIC24FJ32GP205T-I/PT 概述
A microcontroller (MCU) is a single-chip computer containing a CPU core, memory, and programmable I/O peripherals, forming the lowest-level computing element in embedded systems. The PIC24FJ32GP205 belongs to the PIC24F 'GP2' sub-family of eXtreme Low Power (XLP) microcontrollers, sitting in the hierarchy: PIC24FJ32GP205 -> PIC24F MCU -> 16-bit microcontroller -> MCU -> embedded computing -> semiconductor. XLP technology achieves sub-uA sleep currents, making this part suitable for battery-powered designs where quiescent draw dominates battery life.
Key differentiating specifications include the integrated 12-bit ADC capable of 400 Ksps conversion rate, hardware DMA with multiple channels for autonomous peripheral data movement, and CIPs that allow sensor interfacing, signal generation, and safety functions without CPU intervention. The device operates from 2.0V to 3.6V supply and supports -40C to +85C industrial temperature range, with 39 general-purpose I/O pins available for application interfacing.
Architecturally, the PIC24FJ32GP205 uses a modified Harvard architecture with separate program and data paths, executed by a 16-bit modified-RISC CPU core with a 16x16-bit hardware multiplier. This single-cycle multiplier accelerates DSP-oriented operations (FIR filters, control loops) commonly found in motor control and signal conditioning applications.
Typical applications include industrial sensor hubs, low-power IoT edge nodes, USB-aware embedded controllers (the GP205 variant omits full-speed USB but the family includes USB-equipped variants), battery-powered instrumentation, and consumer HMI subsystems. The integrated DMA and CIPs reduce firmware complexity for multi-sensor systems.
Design consideration: the 'T' suffix denotes Tape & Reel packaging for high-volume assembly; the 'I' indicates the industrial -40C to +85C temperature grade. For automotive applications select the 'E' or 'H' grade variant instead.
This page synthesizes distributor pricing, pin-compatible alternatives from the same PIC24FJ 'GP2' family, and practical design notes not consolidated in the manufacturer datasheet.
直接替换替代料： PIC24FJ32GP205T-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： PIC24FJ32GP205T-I/PT （相同外形与封装尺寸） ——差异在于 Package, ADC, Core, Timers, Mounting Type.
快速对比工具——选择替代料号进行并排对比：
PIC24FJ64GP205-I/PT
✅ 直接替换✓ 有现货
$2.52 / 个
查看数据手册 →PIC24FJ128GP205-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC24FJ64GP202-I/SS
✅ 直接替换✓ 有现货
$2.21 / 个
查看数据手册 →PIC24FJ32GP204-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC24FJ32GB004-I/PT
✅ 直接替换✓ 有现货
$3.72 / 个
查看数据手册 →PIC24FJ32GP205T-I/PT 最大额定值与电气特性
| Core | PIC24F (16-bit RISC, modified Harvard) |
| 最大时钟频率 | 32 MHz |
| Instruction Throughput | 16 MIPS |
| Program Memory (Flash, ECC) | 32 KB (11K x 24) |
| Data RAM | 8 KB |
| 工作电源电压 | 2.0 V to 3.6 V |
| 工作温度 | -40 C to +85 C (Industrial, 'I' grade) |
| Number of I/O Pins | 39 |
| ADC Resolution | 10-bit / 12-bit (selectable) |
| ADC Sample Rate | 400 Ksps |
| Analog Comparators | 3 |
| DMA Channels | 2 (peripherals: IC, OC, MCCP, ADC, SPI, I2C, UART) |
| MCCP Modules | 6-channel (Multiple Capture/Compare/PWM) |
| 数据总线宽度 | 16 bit |
| 封装 | TQFP-48 (PT) 7x7 mm |
| 安装类型 | Surface Mount (SMD/SMT) |
| Packaging | Tape & Reel ('T' suffix) |
| RoHS 状态 | Compliant |
| Low-Power Technology | eXtreme Low Power (XLP) |
| CPU Core Features | 16x16 hardware multiplier, hardware divide |
PIC24FJ32GP205T-I/PT 引脚配置
| 引脚 1 | RP15/PWM4H/PMD5/RB15 — Remappable peripheral I/O |
| 引脚 2 | RP10/PWM4L/RB10 — Remappable peripheral I/O |
| 引脚 3 | RP9/RB9 — Remappable peripheral I/O |
| 引脚 4 | RP8/RB8 — Remappable peripheral I/O |
| 引脚 5 | RP7/INT0/RB7 — Remappable peripheral I/O |
| 引脚 6 | RP6/RB6 — Remappable peripheral I/O |
| 引脚 7 | OSC1/CLKI/RA3 — Crystal oscillator input |
| 引脚 8 | OSC2/CLKO/RA2 — Crystal oscillator output |
| 引脚 9 | MCLR/RA1 — Master clear (reset) |
| 引脚 10 | VDD — Positive supply |
| 引脚 11 | VSS — Ground |
| 引脚 12 | AN15/CVD15/RA0 — ADC input / GPIO |
| 引脚 13 | AN14/CVD14/RB14 — ADC input / GPIO |
| 引脚 14 | AN13/CVD13/RB13 — ADC input / GPIO |
| 引脚 15 | AN12/CVD12/RB12 — ADC input / GPIO |
| 引脚 16 | RP11/PWM5L/RB11 — Remappable peripheral I/O |
| 引脚 17 | VDD — Positive supply |
| 引脚 18 | RP5/RB5 — Remappable peripheral I/O |
| 引脚 19 | RP4/RB4 — Remappable peripheral I/O |
| 引脚 20 | RP3/RB3 — Remappable peripheral I/O |
| 引脚 21 | RP2/PWM3H/RB2 — Remappable peripheral I/O |
| 引脚 22 | RP1/PWM3L/RB1 — Remappable peripheral I/O |
| 引脚 23 | RP0/RB0 — Remappable peripheral I/O |
| 引脚 24 | AN3/CVD3/RA3 — ADC input / GPIO (shared with OSC1) |
| 引脚 25 | AN2/CVD2/RA2 — ADC input / GPIO (shared with OSC2) |
| 引脚 26 | AN1/CVD1/RA1 — ADC input / GPIO (shared with MCLR) |
| 引脚 27 | AN0/CVD0/RA0 — ADC input / GPIO |
| 引脚 28 | VSS — Ground |
| 引脚 29 | AVDD — Analog positive supply |
| 引脚 30 | AVSS — Analog ground |
| 引脚 31 | RP14/PWM2H/RC14 — Remappable peripheral I/O |
| 引脚 32 | RP13/PWM2L/RC13 — Remappable peripheral I/O |
| 引脚 33 | RP12/PWM1H/RC12 — Remappable peripheral I/O |
| 引脚 34 | OCM1/PWM1L/RC15 — Output compare / PWM |
| 引脚 35 | RP20/RC0 — Remappable peripheral I/O |
| 引脚 36 | RP21/RC1 — Remappable peripheral I/O |
| 引脚 37 | RP22/RC2 — Remappable peripheral I/O |
| 引脚 38 | RP23/RC3 — Remappable peripheral I/O |
| 引脚 39 | RP24/RC4 — Remappable peripheral I/O |
| 引脚 40 | RP25/RC5 — Remappable peripheral I/O |
| 引脚 41 | RP26/RC6 — Remappable peripheral I/O |
| 引脚 42 | RP27/RC7 — Remappable peripheral I/O |
| 引脚 43 | RP28/RC8 — Remappable peripheral I/O |
| 引脚 44 | RP29/RC9 — Remappable peripheral I/O |
| 引脚 45 | RP30/RC10 — Remappable peripheral I/O |
| 引脚 46 | RP31/RC11 — Remappable peripheral I/O |
| 引脚 47 | AN4/CVD4/RB0 — ADC input / GPIO |
| 引脚 48 | AN5/CVD5/RB1 — ADC input / GPIO |
典型应用
PIC24FJ32GP205T-I/PT 适用于 6 应用s: Industrial Sensor Hub, Low-Power IoT Edge Node, Consumer HMI / User Interface Controller, Battery-Powered Instrumentation, Motor Control / PWM Driver Co-processor, Portable Data Logger / Recorder.
Industrial Sensor Hub
The PIC24FJ32GP205T-I/PT fits industrial sensor hubs because its 12-bit/400 Ksps ADC supports high-accuracy multi-channel sensor acquisition while DMA channels autonomously move ADC samples to RAM, freeing the CPU for data processing. The 2 DMA + 6 MCCP configuration enables simultaneous ADC scanning, PWM generation for excitation signals, and UART/SPI sensor reads without CPU intervention. With XLP sleep currents under 100 nA, a battery-backed 4-20 mA loop sensor can run for years on a single cell. The TQFP-48 footprint provides 39 GPIO, sufficient for 4 sensor inputs plus HMI indicators. Compared to a discrete ADC+MCU solution, the integrated DMA reduces BOM count and firmware complexity.
推荐
Low-Power IoT Edge Node
The PIC24FJ32GP205T-I/PT suits battery-powered IoT edge nodes because its eXtreme Low Power (XLP) technology achieves sub-microamp sleep currents, enabling multi-year battery life on a CR2032 coin cell. The 32 KB ECC Flash holds BLE peripheral stacks or LoRaWAN device libraries plus application logic, while the 16 MIPS core runs at full 32 MHz for active-mode sensor fusion. The hardware DMA channels autonomously wake the ADC, capture samples, and return the MCU to sleep without firmware intervention. This event-driven model reduces average current to under 5 uA in typical 1-Hz sensor reporting duty cycles. The 2.0-3.6V operating range suits direct Li-ion or regulated 3.3V battery rails without boost converters.
推荐
Consumer HMI / User Interface Controller
The PIC24FJ32GP205T-I/PT powers consumer human-machine interface subsystems such as appliance control panels because its 6-channel MCCP (Multiple Capture/Compare/PWM) modules independently drive LEDs, buzzers, and PWM-controlled backlights without CPU load. The 39 GPIO pins accommodate a 4x4 key matrix (8 pins) plus 16 LED indicators, I2C/SPI for display modules, and UART for system communication. The 16 MIPS performance debounces key inputs, scans displays, and runs simple graphics protocols concurrently. The 32 KB Flash stores menu logic and event sequences while 8 KB RAM holds display frame buffers. The TQFP-48 package is hand-solderable for prototype builds and supports IR reflow for production.
推荐
Battery-Powered Instrumentation
The PIC24FJ32GP205T-I/PT is well-suited to portable instrumentation such as handheld multimeters, medical diagnostic peripherals, and field-test gear because its XLP technology combines 32 MHz active performance with sub-uA sleep current, maximizing battery life across duty-cycled measurement workloads. The integrated 12-bit ADC with 400 Ksps sample rate delivers sufficient resolution and bandwidth for sensor signal capture, while DMA channels move data to RAM for averaging or FFT post-processing without CPU intervention. Hardware CIPs (Configurable Logic Cells) implement signal conditioning and threshold detection autonomously. The 2.0-3.6V supply range accepts 2xAA alkaline, single Li-ion, or regulated 3.3V rails without additional regulation.
推荐
Motor Control / PWM Driver Co-processor
The PIC24FJ32GP205T-I/PT serves as a co-processor in motor control and lighting systems because its 6-channel MCCP modules generate 16-bit PWM with complementary outputs, dead-band insertion, and fault shutdown - features critical for driving MOSFET half-bridges. Hardware DMA synchronizes ADC sampling to PWM edges, implementing current-sense and back-EMF measurement at the optimum switching instant without jitter from CPU latency. The 16 MIPS core runs FOC algorithms or PID control loops at 32 kHz switching frequency while offloading housekeeping to peripherals. Compared to a software-PWM approach, hardware MCCP frees the CPU and improves regulation accuracy under transient loads.
推荐
Portable Data Logger / Recorder
The PIC24FJ32GP205T-I/PT fits portable data loggers because its DMA-enabled 12-bit ADC at 400 Ksps supports continuous waveform sampling to RAM, while ECC Flash provides non-volatile event log storage. The 8 KB RAM buffers multi-channel sample sequences before bulk-write to Flash under DMA control, preventing sample loss during storage operations. Hardware CIPs implement trigger logic - level crossing, window comparators, pulse-width measurement - autonomously, freeing the CPU for power management. The industrial -40C to +85C temperature range supports outdoor field deployment. A real-time clock calendar (RTCC) with battery backup timestamps events accurately across power cycles.
推荐
推荐产品汇总
工程参考数据： PIC24FJ32GP205T-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 | PIC24FJ64GP205-I/PT | PIC24FJ128GP205-I/PT | PIC24FJ32GB004-I/PT | PIC24FJ64GP202-I/SS | PIC24FJ32GP204-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-48 (PT) 7x7 mm | TQFP-48 (PT) 7x7 mm - same | TQFP-48 (PT) 7x7 mm - same | TQFP-48 (PT) 7x7 mm - same | SSOP-28 (smaller package) | TQFP-48 (PT) 7x7 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 32 KB (ECC) | 64 KB | 128 KB | 32 KB (ECC) | 64 KB | 32 KB |
| Data RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Maximum Clock | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) |
| USB Support | No | No | No | Yes (Full-Speed USB OTG) | No | No |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| DMA Channels | 2 | 2 | 2 | 2 | 2 | 2 |
关键差异点
- Drop-in Flash upgrade path within TQFP-48 footprint （对比 PIC24FJ64GP205-I/PT)
- eXtreme Low Power (XLP) sub-uA sleep current （对比 PIC24FJ32GA004-I/PT)
- Integrated DMA channels with hardware CIPs （对比 PIC24FJ32GA004-I/PT)
设计说明
The PIC24FJ32GP205T-I/PT accepts 2.0V to 3.6V supply; design the upstream rail with a low-noise LDO such as MCP1700 (3.3V) to provide clean VDD. Place a 100 nF decoupling capacitor within 2 mm of each VDD pin (4 pins total on TQFP-48) and a bulk 10 uF near the package. For ADC applications route AVDD from the same LDO filtered by a ferrite bead to minimize digital switching noise coupling into analog conversions. Enable the on-chip Voltage Regulator (VCAP pin) with a 1 uF low-ESR ceramic capacitor to ground.
Route the crystal traces (OSC1/OSC2 on RA3/RA2, pins 7-8) as short, symmetric traces within 5 mm of the package. Place the load capacitors (typically 15-33 pF) close to the MCU pins and ground the can to the local VSS plane. Keep high-speed digital signals (PWM, SPI) at least 3 mm away from the analog traces (AN0-AN15) and add a ground guard ring around sensitive analog inputs. Provide a 4-layer stackup with continuous ground plane beneath the MCU to reduce EMI.
Do not exceed the absolute maximum MCLR voltage of VDD + 0.3V; if MCLR is driven from a separate pull-up resistor tied to a higher rail, clamp with a diode to VDD. The 'I' suffix indicates -40C to +85C industrial grade - do not use this part in automotive under-hood or other applications exceeding 85C ambient; select 'E' or 'H' grade instead. When migrating to PIC24FJ64GP205 or PIC24FJ128GP205 verify the linker script handles the larger Flash region; MPLAB X IDE typically auto-adjusts but verify the build output.
合规信息
RoHS and REACH compliant per Microchip product environmental compliance. Industrial temperature grade - not AEC-Q100 qualified; for automotive applications use 'E' or 'H' grade variants or PIC24FJ families with AEC-Q100 qualification.
