PIC24FJ128GA306T-I/MR - 16-bit MCU 32MHz 128KB Flash XLP | Microchip
料号： PIC24FJ128GA306T-I/MR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.47 | $34.70 |
| 100 | $3.08 | $308.00 |
| 500 | $2.71 | $1,355.00 |
| 1,000 | $2.39 | $2,390.00 |
PIC24FJ128GA306T-I/MR 概述
What is a 16-bit PIC microcontroller? A PIC24F microcontroller is a 16-bit modified Harvard RISC MCU in the broader category of microcontrollers (MCUs) -> embedded processors -> semiconductors. The PIC24F family specifically targets ultra-low-power embedded designs, sitting below the dsPIC33/PIC24H performance lines and above the 8-bit PIC16/PIC18 families. It integrates Flash, SRAM, and rich on-chip peripherals on a single die, eliminating external memory in most applications.
Key features include 16 MIPS performance at 32 MHz, a peripheral set that combines USB 2.0 full-speed, a 24-channel 10-bit ADC, multiple UART/SPI/I2C interfaces, RTCC, comparators, and the XLP nanoWatt technology that drops sleep current to a typical 340 nA in low-voltage Sleep mode while retaining RAM state. The Vbat pin allows RTC operation from a backup battery.
The device is fabricated on a CMOS process and integrates 53 digital I/O pins, 4 timers, and a CTMU for capacitive touch sensing. With USB-OTG support and ample analog integration, the GA306 variant is positioned as a general-purpose low-power MCU with communications peripherals.
Typical applications include battery-powered IoT sensor nodes, USB peripherals (HID, CDC, custom class), portable medical devices, low-power wireless sensor hubs, and consumer products requiring always-on RTC with Vbat backup. The 64-VQFN package suits compact handheld designs.
When designing with this part, pay close attention to the decoupling network around the exposed thermal pad and route the Vbat line to a coin-cell or supercap. The 3.3V rail should be tightly regulated, as brown-outs can corrupt Flash if BOR is misconfigured.
This page synthesizes distributor pricing across DigiKey, LCSC, and Jotrin, identifies same-package drop-in alternatives from the PIC24FJ family, and adds practical design notes not found in the manufacturer datasheet.
直接替换替代料： PIC24FJ128GA306T-I/MR ——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： PIC24FJ128GA306T-I/MR （相同外形与封装尺寸） ——差异在于 Package, ADC, Maximum CPU Speed, RoHS Status, Core.
快速对比工具——选择替代料号进行并排对比：
PIC24FJ128GA306-I/MR
✅ 直接替换✓ 有现货
$3.65 / 个
查看数据手册 →PIC24FJ128GA310T-I/MR
✅ 直接替换📋 参考替代料（不在目录中）
PIC24FJ128DA106T-I/MR
✅ 直接替换✓ 有现货
$4.85 / 个
查看数据手册 →PIC24FJ128GA106-I/MR
✅ 直接替换✓ 有现货
$4.15 / 个
查看数据手册 →PIC24FJ128DA206-I/MR
✅ 直接替换✓ 有现货
$4.71 / 个
查看数据手册 →PIC24FJ128GA306T-I/MR 最大额定值与电气特性
| Core | PIC24F 16-bit RISC (modified Harvard) |
| Instruction Set | 16-bit |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 128 KB (43K x 24 words) |
| RAM | 8 KB |
| Operating Voltage Range | 2.0 V to 3.6 V |
| I/O Pins | 53 |
| 封装 | 64-VQFN 9x9 mm with exposed pad (MR) |
| 安装类型 | Surface Mount |
| 工作温度范围 | -40 C to +85 C (Industrial) |
| ADC | 10-bit, up to 24 channels |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| Low Power | nanoWatt XLP - typical Sleep current 340 nA with RAM retention |
| Supply Voltage at Speed | 2.0 V min |
| RoHS 状态 | ROHS3 Compliant |
| Lead-Free | Yes |
PIC24FJ128GA306T-I/MR 引脚配置
| 引脚 1 | RP0/PWM1 — Remappable I/O / PWM output |
| 引脚 2 | RP1/PWM2 — Remappable I/O / PWM output |
| 引脚 3 | RP2/SDA2 — Remappable I/O / I2C data |
| 引脚 4 | RP3/SCL2 — Remappable I/O / I2C clock |
| 引脚 5 | VSS — Ground reference |
| 引脚 6 | VDD — Positive supply 2.0V-3.6V |
| 引脚 7 | OSCI/CLKI — Crystal input or external clock |
| 引脚 8 | OSCO/CLKO — Crystal output |
| 引脚 9 | MCLR — Master clear reset (active low) |
| 引脚 10 | PGEC1 — In-circuit debug data |
| 引脚 11 | PGED1 — In-circuit debug clock |
| 引脚 12 | VBAT — RTC backup battery input |
| 引脚 13 | RTCC1 — RTCC output / remappable |
| 引脚 14 | RP4/IC1 — Remappable I/O / input capture |
| 引脚 15 | RP5/OC1 — Remappable I/O / output compare |
| 引脚 16 | VSS — Ground reference |
| 引脚 17 | VDD — Positive supply 2.0V-3.6V |
| 引脚 18 | D+ — USB D+ data line |
| 引脚 19 | D- — USB D- data line |
| 引脚 20 | VBUS — USB Vbus sense |
| 引脚 21 | RP6/U2TX — Remappable I/O / UART2 TX |
| 引脚 22 | RP7/U2RX — Remappable I/O / UART2 RX |
| 引脚 23 | RP8 — Remappable I/O |
| 引脚 24 | RP9 — Remappable I/O |
| 引脚 25 | VSS — Ground reference |
| 引脚 26 | VDD — Positive supply 2.0V-3.6V |
| 引脚 27 | AN0/CVREF — Analog input 0 / CVref output |
| 引脚 28 | AN1 — Analog input 1 |
| 引脚 29 | AN2 — Analog input 2 |
| 引脚 30 | AN3 — Analog input 3 |
| 引脚 31 | AN4 — Analog input 4 |
| 引脚 32 | AN5 — Analog input 5 |
| 引脚 33 | AN6 — Analog input 6 |
| 引脚 34 | AN7 — Analog input 7 |
| 引脚 35 | AN8 — Analog input 8 |
| 引脚 36 | AN9 — Analog input 9 |
| 引脚 37 | AN10 — Analog input 10 |
| 引脚 38 | AN11 — Analog input 11 |
| 引脚 39 | VSS — Ground reference |
| 引脚 40 | VDD — Positive supply 2.0V-3.6V |
| 引脚 41 | AN12 — Analog input 12 |
| 引脚 42 | AN13 — Analog input 13 |
| 引脚 43 | AN14 — Analog input 14 |
| 引脚 44 | AN15 — Analog input 15 |
| 引脚 45 | AN16 — Analog input 16 |
| 引脚 46 | AN17 — Analog input 17 |
| 引脚 47 | AN18 — Analog input 18 |
| 引脚 48 | AN19 — Analog input 19 |
| 引脚 49 | AN20 — Analog input 20 |
| 引脚 50 | AN21 — Analog input 21 |
| 引脚 51 | AN22 — Analog input 22 |
| 引脚 52 | AN23 — Analog input 23 |
| 引脚 53 | RP10 — Remappable I/O |
| 引脚 54 | RP11 — Remappable I/O |
| 引脚 55 | VSS — Ground reference |
| 引脚 56 | VDD — Positive supply 2.0V-3.6V |
| 引脚 57 | RP12 — Remappable I/O |
| 引脚 58 | RP13 — Remappable I/O |
| 引脚 59 | RP14 — Remappable I/O |
| 引脚 60 | RP15 — Remappable I/O |
| 引脚 61 | RP16 — Remappable I/O |
| 引脚 62 | RP17 — Remappable I/O |
| 引脚 63 | RP18 — Remappable I/O |
| 引脚 64 | EP — Exposed thermal pad - tie to VSS |
典型应用
PIC24FJ128GA306T-I/MR 适用于 6 应用s: Battery-Powered IoT Sensor Nodes, USB Human Interface Devices (HID), Portable Medical Monitoring Devices, Consumer Remote Controls and HIDs, Industrial Data Loggers with USB Export, Capacitive Touch User Interfaces.
Battery-Powered IoT Sensor Nodes
The PIC24FJ128GA306T-I/MR's 340 nA typical XLP sleep current with full RAM retention and its integrated 10-bit ADC over up to 24 channels make it well matched to coin-cell powered wireless sensor nodes that wake periodically to sample and transmit. The 128 KB Flash hosts the application plus a Zigbee or LoRa MAC stack, while the integrated RTCC with Vbat backup keeps wall-clock time through the deep-sleep intervals. Engineers can expect months to years of battery life depending on duty cycle, outperforming most Cortex-M0+ parts at sub-microamp idle.
推荐
USB Human Interface Devices (HID)
The integrated USB 2.0 Full-Speed controller with Device, Host, and OTG capability lets the PIC24FJ128GA306T-I/MR implement HID-class peripherals such as keyboards, mice, game controllers, and custom input devices without an external transceiver. The 128 KB Flash accommodates the USB stack plus HID report descriptors and application logic, while the 53 I/O pins handle matrix-scanned key arrays or rotary encoders. Power comes directly from the USB Vbus, eliminating the need for an external LDO.
推荐
Portable Medical Monitoring Devices
The PIC24FJ128GA306T-I/MR is well suited for portable medical devices such as pulse oximeters, glucose meters, and thermometers where low average power and reliable ADC readings are essential. The 24-channel 10-bit ADC supports multi-sensor front-ends, while XLP sleep modes between measurements extend battery life into the months. The Vbat pin lets the device retain time-stamped logs while the main battery is replaced - critical for medical device traceability and regulatory compliance.
推荐
Consumer Remote Controls and HIDs
Consumer remote controls benefit from the PIC24FJ128GA306T-I/MR's combination of low sleep current, integrated USB for charging cradle communication, and ample Flash for IR/RF protocol stacks (RC5, RC6, SIRC, BLE HID bridge). The 32 MHz core executes protocol decoders in real time without taxing the 8 KB RAM buffer. A coin cell or two AA cells can power a remote for years given the sub-microamp idle current.
推荐
Industrial Data Loggers with USB Export
The PIC24FJ128GA306T-I/MR serves as the controller in industrial data loggers that record sensor data to external EEPROM or SD cards and expose the data via USB Mass Storage or CDC. The 53 I/O lines drive parallel EEPROM banks or SPI SD card interfaces, while the USB Full-Speed port streams logs at 12 Mbps to a host PC. Industrial -40 C to +85 C operation and wide 2.0 V to 3.6 V supply tolerance suit 24 V industrial buses stepped down with a switching regulator.
推荐
Capacitive Touch User Interfaces
The integrated Charge Time Measurement Unit (CTMU) on the PIC24FJ128GA306T-I/MR drives capacitive touch buttons, sliders, and proximity sensors without external conversion ICs. Combined with 53 I/O pins and 128 KB Flash, a designer can implement a 20-key touch panel with visual feedback over a small TFT or segment LCD. The XLP sleep mode drops consumption to 340 nA between touches, ideal for battery-powered touch remotes.
推荐
推荐产品汇总
工程参考数据： PIC24FJ128GA306T-I/MR ——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 | PIC24FJ128GA306-I/MR | PIC24FJ128GA310T-I/MR | PIC24FJ128DA106T-I/MR | PIC24FJ128GA106-I/MR | PIC24FJ128DA206-I/MR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-VQFN 9x9 mm | 64-VQFN 9x9 mm - same | 64-VQFN 9x9 mm - same | 64-VQFN 9x9 mm - same | 64-VQFN 9x9 mm - same | 64-VQFN 9x9 mm - same |
| Core Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Flash Memory | 128 KB | 128 KB | 256 KB | 128 KB | 64 KB | 128 KB |
| RAM | 8 KB | 8 KB | 16 KB | 8 KB | 8 KB | 32 KB |
| USB Controller | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | None | None | USB 2.0 FS Device/Host/OTG |
| Hardware Crypto Engine | No | No | No | Yes (AES) | No | Yes (AES) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
关键差异点
- 128 KB Flash with integrated USB 2.0 Full-Speed On-The-Go （对比 PIC24FJ128GA106-I/MR)
- Tape-and-reel packaging optimized for SMT production （对比 PIC24FJ128GA306-I/MR)
- XLP technology with 340 nA typical Sleep current and Vbat retention （对比 PIC24FJ128DA206-I/MR)
设计说明
Place a 10 uF bulk capacitor and a 100 nF decoupling capacitor within 5 mm of each VDD pin pair, using a ground via array to the exposed pad. The PIC24FJ128GA306T-I/MR's exposed pad must be soldered to a continuous ground plane to dissipate the 1 W maximum power and provide a low-impedance return path for the 32 MHz core. Add a ferrite bead on the USB Vbus line to isolate Vbus noise from the MCU VDD rail when USB is active.
Route the D+ and D+ traces on the PCB as a 90 ohm differential pair to a length-matched USB connector, keeping stubs below 5 mm. The crystal traces (OSCI/OSCO) should be less than 5 mm long and surrounded by a ground guard ring to avoid injection of switching noise from the USB signals. The Vbat pin should connect directly to a coin cell or supercap with a 1 uF decoupling cap and no series resistor.
Estimated: with VDD=3.3 V, CPU at 32 MHz full active, and all peripherals active, core current reaches roughly 25 mA and the die dissipates about 83 mW. The 64-VQFN with exposed pad soldered to a 25x25 mm ground copper pour yields theta_JA near 30 C/W, giving a 2.5 C temperature rise - well within the -40 C to +85 C industrial rating. In USB OTG host mode with multiple ports powered, total dissipation can rise to 200 mW and a slightly larger copper pour is recommended.
Do not leave the MCLR pin floating - the PIC24FJ128GA306T-I/MR will reset unpredictably without a 10 kohm pull-up to VDD. Configure the Configuration bits to enable the Brown-Out Reset (BOR) before the first firmware instruction, otherwise a slow VDD ramp-up can corrupt Flash. When using the CTMU for capacitive touch, calibrate the internal current source with the factory constants in the device's calibration memory before enabling touch scanning.
合规信息
RoHS3 compliant per Microchip USA and Newark product listings. Not AEC-Q100 qualified - this is an industrial-grade MCU. REACH compliance confirmed by distributor Abacus Elect cross-reference listing.
