PIC24FJ128GB412T-I/BG - 16-Bit 32MHz 128KB Flash MCU | Microchip
料号： PIC24FJ128GB412T-I/BG ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.86 | $48.60 |
| 100 | $4.21 | $421.00 |
| 500 | $3.74 | $1,870.00 |
| 1,000 | $3.31 | $3,310.00 |
PIC24FJ128GB412T-I/BG 概述
An MCU (microcontroller) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals into one IC. The PIC24F family targets low-power embedded applications; PIC24FJ128GB412 specifically belongs to the GB412 sub-family distinguished by its hardware crypto engine (AES/SHA/RNG), USB 2.0 On-The-Go controller with integrated PHY, segment-LCD driver, and 128 KB Flash with dual-partition safety features for fail-safe firmware updates.
Key features include an integrated hardware cryptographic module supporting AES, DES, 3DES, SHA-1, SHA-256 and true random number generation; 16 channels of 10-bit ADC; four UART, three SPI, three I2C, and a parallel port; CTMU for capacitive touch sensing; and eXtreme Low Power modes drawing under 1 uA in deep sleep. The device operates from 2.0V to 3.6V and includes a peripheral pin select (PPS) system that allows flexible remapping of digital peripherals to physical pins.
The PIC24FJ128GB412 uses a Harvard-architecture 16-bit CPU with modified RISC instruction set supporting atomic bit operations, 16x16 hardware multiply in a single cycle, and DSP-friendly instructions. The dual-partition Flash allows live firmware updates without bricking the device - critical for IoT and medical devices requiring field updates.
Typical applications include secure IoT endpoints with TLS/DTLS firmware, USB peripherals such as barcode scanners and POS terminals, segment-LCD human-machine interfaces (HMIs), battery-powered medical devices needing eXtreme Low Power sleep, secure token authenticators, industrial sensor nodes, and USB-C chargers with authentication. The hardware crypto engine accelerates TLS handshakes and secure boot.
When designing with this device, allocate careful attention to USB OTG routing, place the 121-ball TFBGA decoupling capacitors immediately under the package, and review the dual-partition bootloader flow for fail-safe OTA updates. JTAG/ICSP programming pins (PGECx/PGEDx) require a dedicated pair - all VDD/VSS balls must be connected for correct operation.
This page synthesizes distributor pricing, verified drop-in alternatives, and engineering design notes not found in the standalone Microchip datasheet, giving buyers and design engineers a complete decision-ready view of the PIC24FJ128GB412T-I/BG.
直接替换替代料： PIC24FJ128GB412T-I/BG ——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： PIC24FJ128GB412T-I/BG （相同外形与封装尺寸） ——差异在于 Package, Core Architecture, ADC, Program Memory (Flash), USB.
快速对比工具——选择替代料号进行并排对比：
PIC24FJ128GB412-I/BG
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC24FJ128GA412T-I/BG
✅ 直接替换✓ 有现货
$3.18 / 个
查看数据手册 →PIC24FJ128GA610-I/BG
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC24FJ1024GB610-I/BG
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$7.44 / 个
查看数据手册 →PIC24FJ128GB412T-I/BG 最大额定值与电气特性
| Core | PIC24F 16-bit MCU |
| Family | PIC24FJ128GB412 |
| Architecture | Modified Harvard, 16-bit data/24-bit instructions |
| Program Memory (Flash) | 128 KB (43K x 24 instruction words) dual-partition |
| SRAM | 16 KB |
| EEPROM Emulation | Yes (in Flash) |
| CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage | 2.0 V to 3.6 V |
| 封装 | 121-ball TFBGA (BG), 10x10 mm |
| Temperature Range | -40 C to +85 C (Industrial) |
| USB | USB 2.0 OTG with integrated PHY |
| Hardware Crypto | AES, DES/3DES, SHA-1, SHA-256, RNG |
| LCD Driver | Segment LCD, up to 320 segments |
| ADC | 10-bit, up to 16 channels |
| Timers | 5 x 16-bit, 5 x 32-bit |
| UART / SPI / I2C | 4 / 3 / 3 |
| Peripheral Pin Select (PPS) | Yes |
| CTMU (Capacitive Touch) | Yes |
| DMA | 8 channels |
| 安装类型 | Surface Mount (BGA) |
| RoHS 状态 | Compliant |
| MSL 等级 | 3 (168 hours) |
| eXtreme Low Power Sleep Current | <1 uA (typical, deep sleep) |
PIC24FJ128GB412T-I/BG 121-ball tfbga (bg), 10x10 mm 引脚配置指南
PIC24FJ128GB412T-I/BG（121-ball tfbga (bg), 10x10 mm 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： PIC24FJ128GB412T-I/BG.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PIC24FJ128GB412T-I/BG 适用于 7 应用s: Secure IoT Sensor Endpoints, USB OTG Peripherals and POS Terminals, Segment-LCD Human-Machine Interfaces, Battery-Powered Medical Devices, Secure Token Authenticators and Hardware Security Modules, Industrial Sensor Nodes and Field Transmitters, USB-C Chargers with Authentication.
Secure IoT Sensor Endpoints
The PIC24FJ128GB412T-I/BG is purpose-built for secure IoT sensor endpoints running TLS/DTLS over Wi-Fi co-processor or Bluetooth modules. Its hardware cryptographic engine accelerates AES-128/256 and SHA-256 hashing, offloading TLS handshake operations from the 16 MIPS CPU - reducing both handshake latency and current consumption. With 128 KB dual-partition Flash, the device supports fail-safe OTA firmware updates over USB or serial, ensuring deployed sensors can be patched without bricking. eXtreme Low Power deep-sleep under 1 uA extends battery life to multi-year operation on a coin cell, making it ideal for environmental monitoring, smart agriculture, and asset-tracking endpoints.
推荐
USB OTG Peripherals and POS Terminals
The PIC24FJ128GB412T-I/BG integrates a USB 2.0 On-The-Go controller with on-chip PHY, eliminating the need for an external USB transceiver in barcode scanners, POS terminals, USB printers, and HID peripherals. The 32 MHz / 16 MIPS PIC24F core handles USB stack processing and application logic concurrently, while 16 KB SRAM buffers high-throughput endpoint transfers. The hardware crypto engine accelerates EMV chip-card authentication in payment terminals. Designers benefit from peripheral pin select (PPS), which lets them route USB D+/D-, UART, SPI, and I2C to available TFBGA balls without rigid pin-function assignment, accelerating PCB layout.
推荐
Segment-LCD Human-Machine Interfaces
The PIC24FJ128GB412T-I/BG drives up to 320 LCD segments directly without an external LCD driver, integrating bias generation and charge pump on-chip. This makes it a strong fit for appliance control panels, medical device HMIs, industrial gauges, and consumer electronics requiring 7-segment or custom-segment displays. The CTMU peripheral enables capacitive touch buttons alongside the LCD, allowing unified touch-and-display UI in a single chip. Operating from 2.0V to 3.6V and drawing under 1 uA in deep sleep, it is well-suited to battery-powered segment-LCD devices like wireless thermostats, blood pressure monitors, and IoT sensor readouts.
推荐
Battery-Powered Medical Devices
The PIC24FJ128GB412T-I/BG is suitable for battery-powered medical devices such as portable glucose meters, pulse oximeters, and wearable health monitors. eXtreme Low Power technology delivers deep-sleep currents below 1 uA, allowing weeks-to-years of operation on small lithium coin cells. The 10-bit ADC with 16 channels supports multi-sensor signal acquisition (SpO2, temperature, motion), while CTMU provides touch-based user input without mechanical buttons. The hardware cryptographic engine secures patient data transmitted over BLE or USB, addressing HIPAA-style encryption requirements. The 121-ball TFBGA enables compact PCB designs in wearable form factors.
推荐
Secure Token Authenticators and Hardware Security Modules
The PIC24FJ128GB412T-I/BG serves as the core of USB security tokens, smart-card authenticators, and FIDO2-style hardware authenticators. Its hardware cryptographic engine - supporting AES-128/192/256, DES/3DES, SHA-1, SHA-256, and true random number generation - accelerates authentication handshakes while the USB OTG controller handles host communication. The 128 KB dual-partition Flash allows secure firmware updates while maintaining a recovery partition. eXtreme Low Power idle ensures the token draws negligible current when not in use. The compact 121-ball TFBGA 10x10 mm footprint supports dongle-style USB-A form factors.
推荐
Industrial Sensor Nodes and Field Transmitters
The PIC24FJ128GB412T-I/BG powers industrial sensor nodes measuring temperature, pressure, flow, or vibration in 4-20 mA loop-powered or battery-backed field transmitters. The -40 C to +85 C industrial temperature range covers harsh factory environments, while eXtreme Low Power sleep modes let battery-powered nodes operate for years on primary cells. The hardware crypto engine secures Modbus-TCP, PROFINET, or wireless sensor telemetry against tampering. With 16 ADC channels, multiple sensor inputs are multiplexed into a single chip, and peripheral pin select allows flexible PCB layout. The dual-partition architecture enables secure remote firmware updates in deployed industrial systems.
推荐
USB-C Chargers with Authentication
The PIC24FJ128GB412T-I/BG integrates USB OTG and hardware cryptography, making it ideal for USB-C charger controllers that authenticate attached devices and negotiate power profiles. Its AES/SHA engine validates USB-PD authentication certificates, while USB OTG handles data-line communication with chargers and devices. The 32 MHz CPU runs USB-PD state machines, display updates on small segment LCDs, and authentication handshakes simultaneously. Operating at 2.0V to 3.6V, the device pairs with high-voltage USB-PD PHY front-ends. The compact 10x10 mm TFBGA supports small-form-factor wall-charger designs.
推荐
推荐产品汇总
工程参考数据： PIC24FJ128GB412T-I/BG ——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 | PIC24FJ128GB412-I/BG | PIC24FJ128GA412T-I/BG | PIC24FJ128GA610-I/BG | PIC24FJ1024GB610-I/BG |
|---|---|---|---|---|---|
| Package | 121-ball TFBGA (BG) 10x10 mm | 121-ball TFBGA (BG) 10x10 mm - same | 121-ball TFBGA (BG) 10x10 mm - same | 121-ball TFBGA (BG) 10x10 mm - same | 121-ball TFBGA (BG) 10x10 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB dual-partition | 128 KB dual-partition | 128 KB dual-partition | 256 KB | 1 MB |
| SRAM | 16 KB | 16 KB | 16 KB | 32 KB | 32 KB |
| Hardware Crypto Engine | AES, DES/3DES, SHA-1/256, RNG | AES, DES/3DES, SHA-1/256, RNG | No hardware crypto | No hardware crypto | AES, DES/3DES, SHA-1/256, RNG |
| USB | USB 2.0 OTG with integrated PHY | USB 2.0 OTG with integrated PHY | USB 2.0 OTG with integrated PHY | No USB | USB 2.0 OTG with integrated PHY |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| LCD Driver | Segment LCD up to 320 segments | Segment LCD up to 320 segments | Segment LCD up to 320 segments | Segment LCD up to 480 segments | Segment LCD up to 480 segments |
关键差异点
- Integrated hardware cryptographic engine on a 32 MHz PIC24F MCU （对比 PIC24FJ128GA412T-I/BG)
- Dual-partition Flash architecture for fail-safe OTA updates （对比 PIC24FJ128GA610-I/BG)
- eXtreme Low Power technology with sub-1 uA deep sleep （对比 PIC24FJ1024GB610-I/BG)
设计说明
The 121-ball TFBGA 10x10 mm package requires careful PCB layout. All VDD/VSS balls must be connected for proper operation - per Microchip datasheet, leaving any power ball floating can cause latch-up or reset failures. Place 100 nF decoupling capacitors immediately adjacent to each VDD ball, and a single 4.7 uF bulk capacitor near the package. Use micro-vias (0.2-0.3 mm) on inner escape layers to route out the 0.65 mm pitch ball grid; avoid dog-bone fanouts that exceed the escape density. The exposed center balls (if any) should be soldered to a continuous ground pad for thermal dissipation and electrical reference.
The PIC24FJ128GB412T-I/BG operates from 2.0V to 3.6V. For USB OTG applications, provide a dedicated 3.3V LDO for VUSB with adequate bulk capacitance (4.7-10 uF) per the USB 2.0 specification. For battery applications, the eXtreme Low Power modes (Sleep, Deep Sleep, VBAT) draw under 1 uA but require careful sequencing - the RTCC and/or WDT can wake the device from deep sleep on a programmed interval. Estimated battery life with CR2032 (220 mAh) at 1 uA sleep with 1 wake per minute is approximately 5-7 years, depending on active-mode duty cycle.
Several pitfalls are documented in Microchip application notes: (1) All VDD/VSS balls must be soldered - any open power ball causes erratic operation; (2) ICSP programming requires a dedicated PGECx/PGEDx pair - if PGEC2 is used for ICSPCLK, ICSPDAT must connect to PGED2 (not PGED1); (3) The dual-partition Flash requires bootloader coordination between Boot and App partitions during OTA updates - incorrect partition switching can brick the device; (4) Hardware crypto engine requires initialization per the crypto library - it does not auto-accelerate user crypto calls; (5) PPS must be unlocked before peripheral remapping and locked afterward to prevent runaway writes.
USB OTG signal integrity on the PIC24FJ128GB412T-I/BG requires 90 ohm differential impedance on D+/D- traces, with matched length (within 150 mil) per USB 2.0 spec. Place the ESD protection array within 5 mm of the USB connector. For applications using the segment-LCD driver, route LCD segment and common lines with adequate spacing to prevent cross-talk, and place the LCD bias capacitors (typically 1 uF on each VLCD pin) close to the package. The analog ADC inputs (AN0-AN15) benefit from dedicated ground isolation and a low-pass RC filter at each input for high-impedance sensor sources.
合规信息
RoHS and REACH compliant per Microchip product page. Industrial -40 C to +85 C temperature grade; not AEC-Q100 qualified for automotive (use PIC24FJxxx-Q1 variants for automotive). Halogen-free per Microchip packaging specifications.
