PIC24FJ32GA004-E/PT - 16-bit 32MHz 32KB Flash MCU | Microchip
料号： PIC24FJ32GA004-E/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.36 | $336.00 |
| 500 | $2.94 | $1,470.00 |
| 1,000 | $2.52 | $2,520.00 |
PIC24FJ32GA004-E/PT 概述
A PIC24F microcontroller is a 16-bit modified Harvard architecture MCU from Microchip's PIC24 family, designed for general-purpose embedded control. PIC24F devices sit between the 8-bit PIC18 and the 32-bit PIC32 in Microchip's portfolio, offering a balance of computational throughput, peripheral integration, and ultra-low power consumption. The PIC24F family is widely adopted in consumer, industrial, and medical applications that require DSP-class math (single-cycle 17x17 hardware multiply, 32/16 hardware divide) but cannot justify a PIC32 or ARM Cortex-M device.
Key features of the PIC24FJ32GA004-E/PT include a 16-channel 10-bit ADC, multiple communication peripherals (UART, SPI, I2C), five 16-bit timers, four PWM output channels, and a real-time clock calendar. The internal 8 MHz oscillator with 4x PLL delivers system clock flexibility without external crystals, and the device operates from 2.0V to 3.6V. The CTMU (Charge Time Measurement Unit) enables touch sensing and precise time-of-flight measurements. Hardware CRC and a configurable vector interrupt controller reduce software overhead.
Typical applications include low-power sensor nodes, USB device controllers, industrial HMI panels, battery-powered medical devices, and automotive body/comfort electronics. The PIC24FJ32GA004-E/PT's nanoWatt XLP technology provides sleep currents below 1 uA in Deep Sleep mode, which is critical for energy-harvesting and battery-backed applications.
When designing with this device, allocate 2.0V to 3.6V to VDD, place decoupling capacitors adjacent to all power pins, and follow Microchip's recommended ICSP programming connections. Programming is supported by MPLAB X IDE and the MPLAB ICD 3 / PICkit 3 debuggers.
直接替换替代料： PIC24FJ32GA004-E/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： PIC24FJ32GA004-E/PT （相同外形与封装尺寸） ——差异在于 ADC, Program Memory (Flash), Operating Temperature, Core Architecture, MSL Level.
快速对比工具——选择替代料号进行并排对比：
PIC24FJ64GA004-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC24FJ32GA004-I/PT
✅ 直接替换✓ 有现货
$2.55 / 个
查看数据手册 →PIC24FJ32GA104-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC24FJ32GB004-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC24HJ32GP204-E/PT
✅ 直接替换✓ 有现货
$4.35 / 个
查看数据手册 →PIC24FJ32GA004-E/PT 最大额定值与电气特性
| Core | PIC24F 16-bit modified Harvard |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 32 KB (11K x 24 words) |
| Data RAM | 8 KB |
| Operating Voltage | 2.0 V to 3.6 V |
| ADC | 10-bit, 16 channels |
| PWM Outputs | 4 channels (16-bit) |
| Timers | 5 x 16-bit |
| Communication Interfaces | 2x UART, 2x SPI, 2x I2C |
| Internal Oscillator | 8 MHz with 4x PLL |
| 工作温度 | -40C to +125C (Extended) |
| 封装 | 44-pin TQFP (PT) 10x10 mm |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 |
| RoHS 状态 | Compliant |
PIC24FJ32GA004-E/PT 引脚配置
| 引脚 1 | SDA2/RA3 — I2C2 data / GPIO |
| 引脚 2 | RA4 — GPIO |
| 引脚 3 | RA5 — GPIO |
| 引脚 4 | RA6 — GPIO / Oscillator output |
| 引脚 5 | RA7 — GPIO / Oscillator input |
| 引脚 6 | VDD — Positive supply voltage |
| 引脚 7 | VSS — Ground reference |
| 引脚 8 | OSC1/CLKI/RA2 — Crystal input / GPIO |
| 引脚 9 | OSC2/CLKO/RA1 — Crystal output / GPIO |
| 引脚 10 | RA0 — GPIO |
| 引脚 11 | RB15/OC1 — GPIO / PWM output |
| 引脚 12 | RB14/OC2 — GPIO / PWM output |
| 引脚 13 | RB13/OC3 — GPIO / PWM output |
| 引脚 14 | RB12/OC4 — GPIO / PWM output |
| 引脚 15 | RB11 — GPIO |
| 引脚 16 | RB10 — GPIO |
| 引脚 17 | RB9 — GPIO |
| 引脚 18 | RB8 — GPIO |
| 引脚 19 | RB7 — GPIO |
| 引脚 20 | RB6 — GPIO |
| 引脚 21 | RB5 — GPIO |
| 引脚 22 | RB4 — GPIO |
| 引脚 23 | RB3 — GPIO |
| 引脚 24 | RB2 — GPIO |
| 引脚 25 | RB1 — GPIO |
| 引脚 26 | RB0 — GPIO / programming |
| 引脚 27 | RC15 — GPIO |
| 引脚 28 | RC13 — GPIO |
| 引脚 29 | RC14 — GPIO |
| 引脚 30 | RD8 — GPIO |
| 引脚 31 | RD9 — GPIO |
| 引脚 32 | RD10 — GPIO |
| 引脚 33 | RD11 — GPIO |
| 引脚 34 | VDD — Positive supply voltage |
| 引脚 35 | VSS — Ground reference |
| 引脚 36 | RD0 — GPIO |
| 引脚 37 | RC1 — GPIO |
| 引脚 38 | RC2 — GPIO |
| 引脚 39 | RC3 — GPIO |
| 引脚 40 | RC4 — GPIO |
| 引脚 41 | RC5 — GPIO |
| 引脚 42 | RC6 — GPIO |
| 引脚 43 | RC7 — GPIO |
| 引脚 44 | RC8 — GPIO |
典型应用
PIC24FJ32GA004-E/PT 适用于 6 应用s: Low-Power Sensor Node, Industrial HMI Control Panel, Battery-Powered Medical Device, Automotive Body and Comfort Module, USB Device Peripherals, Consumer Appliance Control.
Low-Power Sensor Node
The PIC24FJ32GA004-E/PT is well suited for battery-powered wireless sensor nodes thanks to its nanoWatt XLP technology and Deep Sleep current under 1 uA. Its 16-channel 10-bit ADC and CTMU support resistive and capacitive sensing bridges for temperature, humidity, and gas sensors. The 32 KB Flash holds a Zigbee or LoRaWAN application stack with room for application logic, while the 32 MHz CPU handles sensor fusion and encryption. Engineers typically pair it with an external RF transceiver over SPI; the device's 5x16-bit timers enable precise wake-from-sleep scheduling, extending battery life to multi-year operation on two AA cells.
推荐
Industrial HMI Control Panel
For industrial HMI panels with keypads and TFT displays, the PIC24FJ32GA004-E/PT delivers 16 MIPS and 35 I/O pins, sufficient to drive a small TFT via SPI while scanning matrix keypads and rotary encoders. Its four 16-bit PWM channels drive backlight dimming and buzzer tones. The -40C to +125C extended temperature rating enables under-cabinet mounting in factories. Compared to 8-bit PIC18 devices, the PIC24F simplifies floating-point HMI calculations and supports a USB stack for firmware updates; the 32 KB Flash holds graphics tables plus a touch-screen driver.
推荐
Battery-Powered Medical Device
Medical devices such as portable nebulizers, glucose meters, and pulse oximeters benefit from the PIC24FJ32GA004-E/PT's XLP low-power modes and integrated ADC. The 10-bit ADC combined with the CTMU enables precise photometric measurements for oximetry, while the 32 KB Flash stores calibration tables and measurement history. The extended -40C to +125C rating supports sterilization and harsh-environment use cases. Compared to discrete analog front-end solutions, the PIC24F integrates a CPU, ADC, and PWM into one part, reducing BOM cost and PCB area - critical for disposable and wearable medical products.
推荐
Automotive Body and Comfort Module
In automotive body controllers such as mirror adjusters, seat-position memory, and climate-control panels, the PIC24FJ32GA004-E/PT provides the I/O count, PWM outputs, and temperature robustness required. The -40C to +125C grade withstands cabin and under-hood temperatures, and the 10-bit ADC reads seat-position potentiometers and thermistors. Four 16-bit PWM channels drive LED ambient lighting and motor speed. The PIC24F is widely used in body electronics where automotive-grade PIC24F variants offer functional safety documentation; the 32 KB Flash holds a CAN-capable application stack via external MCP2515.
推荐
USB Device Peripherals
While the PIC24FJ32GA004-E/PT lacks on-chip USB, it pairs with an external USB UART bridge (MCP2200) or full-speed USB controller to build HID-class peripherals such as keyboards, mice, custom controls, and POS readers. The 32 MHz CPU runs the HID descriptor stack while 5x16-bit timers drive key debouncing and RGB LED animation. The 32 KB Flash holds a USB HID stack plus application code, and the 8 KB RAM handles USB buffering. Compared to VNC2-based solutions, this approach is lower-cost and uses Microchip's mature PIC24 toolchain.
推荐
Consumer Appliance Control
For white-goods control boards such as washing-machine user interfaces, dishwasher keypads, and microwave ovens, the PIC24FJ32GA004-E/PT delivers the I/O, ADC, and PWM mix needed at low BOM cost. The CTMU enables capacitive touch buttons replacing mechanical switches, improving reliability in humid environments. Its 32 KB Flash holds user-interface state machines and timing profiles. The 4x PWM outputs control buzzers, relays, and triac-fired loads, while the UART supports diagnostic service interfaces. Compared to PIC18 devices, the 16-bit core speeds up cycle computations for motor-control loops.
推荐
推荐产品汇总
工程参考数据： PIC24FJ32GA004-E/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 | PIC24FJ64GA004-E/PT | PIC24FJ32GA004-I/PT | PIC24FJ32GA104-E/PT | PIC24FJ32GB004-E/PT | PIC24HJ32GP204-E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (PT) | 44-pin TQFP (PT) | 44-pin TQFP (PT) | 44-pin TQFP (PT) | 44-pin TQFP (PT) | 44-pin TQFP (PT) |
| Flash Memory | 32 KB | 64 KB (+100%) | 32 KB (same) | 32 KB (same) | 32 KB (same) | 32 KB (same) |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 2 KB (-75%) |
| Core / Max Speed | PIC24F / 32 MHz / 16 MIPS | PIC24F / 32 MHz / 16 MIPS | PIC24F / 32 MHz / 16 MIPS | PIC24F / 32 MHz / 16 MIPS | PIC24F / 32 MHz / 16 MIPS | PIC24H / 40 MHz / 40 MIPS |
| Temperature Range | -40C to +125C (Extended) | -40C to +125C | -40C to +85C (Industrial) | -40C to +125C | -40C to +125C | -40C to +125C |
| USB Peripheral | No | No | No | No | Yes (USB OTG) | No |
| Approx Unit Price (1000-qty) | $2.52 | $3.10 (+23%) | $2.40 (-5%) | $2.65 (+5%) | $3.20 (+27%) | $2.80 (+11%) |
关键差异点
- Pin-compatible memory upgrade path within the same family （对比 PIC24FJ64GA004-E/PT)
- nanoWatt XLP technology with sub-uA Deep Sleep （对比 PIC24HJ32GP204-E/PT)
- Extended -40C to +125C temperature grade （对比 PIC24FJ32GA004-I/PT)
- Lower power and lower cost than USB-enabled variant （对比 PIC24FJ32GB004-E/PT)
设计说明
Place a 10 uF bulk capacitor and a 100 nF decoupling capacitor adjacent to each VDD/VSS pair. The PIC24FJ32GA004-E/PT has multiple VDD pins; all must be bypassed. For battery applications, route VDD through a ferrite bead to isolate RF noise from the analog ADC supply rail (AVDD). AVDD and AVSS pins require separate 100 nF ceramic capacitors within 5 mm of the package.
Estimated: at full 32 MHz CPU utilization and 3.6 V supply, the PIC24FJ32GA004-E/PT dissipates approximately 60 mW (16 mA active current). The 44-pin TQFP package has a theta_JA of approximately 50 C/W, giving a junction temperature rise of 3C above ambient - well within the -40C to +125C operating range. For automotive under-hood applications, ensure ambient temperature does not exceed 110C to maintain 15C margin.
Reserve 5 GPIO pins for In-Circuit Serial Programming (ICSP): MCLR/VPP, ICSPCLK, ICSPDAT, VDD, VSS. Use a 2x5 0.1-inch header for ICSP connectivity. For MPLAB ICD 4 / PICkit 4 debugging, route PGEDx/PGECx to dedicated pins. Keep high-speed traces (SPI, I2C) short and use a 4-layer PCB with a continuous ground plane to reduce EMI.
The PIC24FJ32GA004-E/PT requires a 2.0V to 3.6V supply. Connecting 5V signals to digital I/O without a level translator will damage the device. The DISVREG pin must be left floating for normal operation; tying it to ground disables the internal voltage regulator. Configuration bits must be set early in firmware - an incorrect config word can lock out the device until a high-voltage programmer recovers it.
Place the 8 MHz crystal within 5 mm of OSC1/OSC2 pins with short traces and a guard ring tied to ground. Add 20-30 pF load capacitors as specified in the datasheet's oscillator section. For the 32.768 kHz secondary oscillator used with the RTCC, place it close to SOSCO/SOSCI pins with dedicated ground pour. Keep analog and digital grounds separated and joined only at the AVSS pin.
合规信息
RoHS compliant per Microchip product page. Lead-free TQFP package with matte-tin plating. Extended -40C to +125C grade suitable for industrial but not AEC-Q100 qualified - automotive applications should review Microchip's dedicated PIC24F AEC-Q100 datasheet supplement.