LPC1765FET100K - 100MHz Cortex-M3 MCU with USB | NXP
MPN： LPC1765FET100K ✓ 啟用中LPC1765FET100K 概覽
A microcontroller is a semiconductor that executes firmware, reads sensor data, controls actuators, and manages communication links within a larger electronic system. The LPC1765 belongs to the Arm Cortex-M3 microcontroller hierarchy, combining a 32-bit processor core, embedded nonvolatile memory, RAM, and configurable peripherals. Its integration reduces external component count while supporting embedded control, industrial communication, data acquisition, and USB-connected equipment.
The device provides 256 kB of flash for program storage and 64 kB of SRAM for working memory. Its USB Device, Host, and OTG capability supports peripheral connectivity, removable storage, and USB-to-serial equipment. Additional communication resources include four UARTs, two CAN channels, three SSP/SPI interfaces, three I2C interfaces, and I2S. An eight-channel 12-bit ADC, 10-bit DAC, motor-control PWM, and quadrature encoder interface support mixed analog and digital designs.
The 100 MHz Cortex-M3 core combines deterministic 32-bit instruction execution with integrated peripherals, allowing the LPC1765 to service communication traffic and control loops without requiring a separate processor. An eight-channel DMA controller can transfer data between memory and peripherals, reducing interrupt overhead and helping preserve processor time. The manufacturer product information also identifies four general-purpose timers, six-output general-purpose PWM, and an ultra-low-power real-time clock with a separate 32 kHz oscillator.
Typical applications include USB-connected industrial control equipment, CAN network nodes, data-acquisition systems, motor controllers, serial gateways, and compact embedded platforms. The combination of USB, multiple CAN channels, and substantial memory is particularly useful when a design must connect to a host system while also participating in an embedded network. Its 100-pin TFBGA package also offers a high pin count for parallel I/O, analog channels, and communications.
PCB implementation requires careful power, grounding, and signal-integrity work. Place decoupling capacitors near the supply pins, route high-current and sensitive analog paths away from fast digital edges, and follow the package-specific land pattern and pin-assignment guidance in the NXP datasheet. Confirm the exposed-pad connection and thermal strategy during layout so that power dissipation and temperature rise remain within the intended operating limits.
This page combines the exact LPC1765FET100K configuration with interface details, application guidance, package constraints, and same-footprint migration candidates. It is intended to help engineers confirm memory, peripheral, and package requirements before committing an LPC17xx design to PCB layout, firmware configuration, or production sourcing.
直接替換替代品，適用於 LPC1765FET100K — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
LPC1762FET100
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LPC1764FET100
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LPC1766FET100
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LPC1768FET100
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LPC1788FET100
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LPC1765FET100K 最大額定值與電氣特性
| Product Type | 32-bit microcontroller |
| Processor Core | Arm Cortex-M3 |
| Maximum CPU Frequency | 100 MHz |
| Flash Memory | 256 kB |
| SRAM | 64 kB |
| Architecture | 32-bit |
| 工作電源電壓 | 3.3 V |
| USB Interface | USB Device, Host, and OTG |
| DMA Channels | 8 channels |
| UART Count | 4 |
| CAN Channels | 2 |
| SSP/SPI Interfaces | 3 |
| I2C Interfaces | 3 |
| ADC | 8-channel, 12-bit |
| DAC | 10-bit |
| General-Purpose PWM Outputs | 6 outputs |
| Quadrature Encoder Interface | Supported |
| Real-Time Clock | Ultra-low-power RTC with separate 32 kHz oscillator |
| 封裝 | 100-pin TFBGA, 9 x 9 mm |
| 安裝類型 | Surface mount |
LPC1765FET100K 100-pin tfbga, 9 x 9 mm 腳位配置指南
LPC1765FET100K（100-pin tfbga, 9 x 9 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： LPC1765FET100K.
請參閱 資料表 以查看完整腳位配置。
典型應用
LPC1765FET100K 適用於 6 應用s: USB-to-Industrial Serial Gateway, CAN Network Control Node, Industrial Data-Acquisition System, Brushless Motor Control Platform, USB Data-Logging Controller, Networked Embedded Control System.
USB-to-Industrial Serial Gateway
The LPC1765FET100K fits a USB-to-industrial gateway because it combines a 100 MHz Cortex-M3 core, USB Device/Host/OTG, four UARTs, and 64 kB SRAM in one device. Its four UARTs can connect RS-232, RS-422, RS-485, or custom serial equipment while USB provides the connection to a host computer. The eight-channel DMA controller can move serial data with less processor intervention, and the 256 kB flash provides space for protocol conversion and configuration firmware. A practical implementation should isolate external serial lines from the digital core, provide the required transceiver and protection circuitry, and verify USB enumeration and industrial electrical characteristics.
推薦
CAN Network Control Node
The LPC1765FET100K is appropriate for a CAN-connected industrial node because it provides two CAN channels alongside four UARTs, three I2C interfaces, and three SSP/SPI interfaces. The dual CAN arrangement can support separate network segments or redundant monitoring, while 100 MHz execution is useful for protocol handling and local control. Its 256 kB flash and 64 kB SRAM are suitable for firmware, diagnostics, and message buffering, and the eight-channel DMA controller can improve data-movement efficiency. The PCB should include a CAN transceiver for each network, correct termination, protected differential routing, and a common reference strategy compatible with the selected transceiver.
推薦
Industrial Data-Acquisition System
The LPC1765FET100K supports compact data-acquisition equipment that must sample analog inputs and move the results through several communication interfaces. Its eight-channel 12-bit ADC provides simultaneous sampling resources for sensors, while the 10-bit DAC supports analog output or test-signal generation. Three I2C buses are useful for sensors and configuration devices, three SSP/SPI interfaces support higher-speed peripherals, and the eight-channel DMA controller reduces CPU involvement during transfers. With 64 kB SRAM and 256 kB flash, the device can hold acquisition buffers and run local filtering or calibration code. Analog inputs still require conditioning, reference design, grounding, and appropriate input-amplitude protection.
推薦
Brushless Motor Control Platform
The LPC1765FET100K fits motor-control platforms that require fast control calculations, multiple sensor inputs, and flexible communications. Its motor-control PWM, six general-purpose PWM outputs, four general-purpose timers, and quadrature encoder interface support rotor-position feedback and actuator control. The 100 MHz Cortex-M3 core can execute control algorithms while the 12-bit ADC monitors current, position, or temperature signals. CAN and USB provide commissioning and network connectivity, while the three I2C and three SSP/SPI interfaces connect sensors and power stages. Power-stage layout remains separate from the MCU domain: use appropriate gate drivers, isolation where required, current sensing, and robust thermal design.
推薦
USB Data-Logging Controller
The LPC1765FET100K can serve as the central controller in a USB-connected data logger because it combines USB Device, Host, or OTG operation with substantial memory and multiple serial buses. The 256 kB flash can store configuration, firmware, and local records, while 64 kB SRAM supports active acquisition and protocol buffers. Four UARTs allow simultaneous connection to GPS, sensors, local displays, or service equipment. USB Device mode is appropriate for direct computer connection, USB Host mode supports peripherals such as mass storage, and OTG can simplify roles where appropriate. Firmware should implement enumeration, timeout recovery, storage integrity, and safe handling of cable removal or bus faults.
推薦
Networked Embedded Control System
The LPC1765FET100K is useful for compact networked controllers that need Ethernet management, USB service connectivity, and local real-time control. The LPC1765's four UARTs, two CAN channels, and serial controller set allow it to bridge several device types, while USB Device mode provides an easy configuration and diagnostics interface. The 100 MHz core and eight-channel DMA controller help service communication traffic and control tasks, and the ultra-low-power real-time clock supports time-based records or wake schedules. An Ethernet design can add a dedicated Ethernet controller and PHY, while USB may be used for local configuration. Firmware and security requirements should be reviewed before exposing either interface to an untrusted network.
推薦
推薦產品摘要
工程參考資料，適用於 LPC1765FET100K — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | LPC1762FET100 | LPC1764FET100 | LPC1766FET100 | LPC1768FET100 | LPC1788FET100 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | TFBGA-100 (9 x 9 mm) | TFBGA-100 (9 x 9 mm) | TFBGA-100 (9 x 9 mm) | TFBGA-100 (9 x 9 mm) | TFBGA-100 (9 x 9 mm) | TFBGA-100 (9 x 9 mm) |
| Processor Core | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 |
主要差異化特點
- Balanced USB and dual-CAN connectivity (對比LPC1768FET100)
- Substantial SRAM for communications and acquisition (對比LPC1762FET100)
- High integration in a 9 x 9 mm TFBGA (對比LPC1764FET100)
- Eight-channel DMA support for data movement (對比LPC1766FET100)
設計說明
Place the required bypass capacitors immediately beside the LPC1765FET100K power and ground pins, and keep the return path short and continuous. The device operates at 3.3 V according to distributor product information, but the complete allowable voltage range and all core, I/O, and peripheral limits must be taken from the manufacturer datasheet. Confirm startup current, sleep behavior, and brownout requirements during power-supply sizing. Keep noisy switching regulators and their inductors physically separated from the MCU supply network.
Use the exact 100-pin TFBGA land pattern from the NXP package drawing and follow its ball-pitch, solder-mask, paste, and exposed-pad guidance. The package is only 9 x 9 mm, so fanout routing and BGA assembly capability materially affect the PCB stack-up. Verify pad and mask definitions with the assembler because alternative BGA-library rules can create solder-ball defects. Maintain thermal-via access beneath any exposed thermal pad if the manufacturer package drawing specifies one.
Group USB, CAN, UART, I2C, and SSP/SPI routing by their respective interface constraints rather than by software function. Keep USB differential traces closely coupled with a continuous reference plane and avoid stubs; route CAN differential pairs with consistent impedance and controlled spacing to their transceivers. Separate analog inputs associated with the 12-bit ADC from digital and switching paths, use a quiet ground strategy around sensitive nets, and place analog filtering close to the relevant pins.
Do not treat a same-package LPC17xx device as an automatic firmware-compatible replacement. Although the listed candidates share the TFBGA-100 footprint, boot pins, peripheral population, pin multiplexing, memory capacity, Ethernet resources, and firmware startup code can differ. Before substitution, compare the complete pin-description tables, power pins, analog channels, communication assignments, bootloader behavior, and peripheral electrical limits. A successful PCB fit alone is not sufficient to establish functional equivalence.
合規資訊
No specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was identified for the exact LPC1765FET100K ordering code. Check the current NXP product page and material-compliance documentation before production release.
