LPC1769FBD100K - 120MHz Cortex-M3 MCU with Ethernet | NXP
料号： LPC1769FBD100K ✓ 量产中LPC1769FBD100K 概述
An ARM Cortex-M3 microcontroller is a 32-bit reduced-instruction-set processor designed for embedded systems. The Cortex-M3 core belongs to the ARM processor hierarchy and is used in microcontrollers, or MCUs, that combine processor performance, flash memory, static RAM, and programmable peripherals in one device. The LPC1769 places this processing capability within NXP's LPC17xx microcontroller family, combining communications, data conversion, and motor-control functions on one integrated circuit.
The principal features include 120 MHz operation, 512 KB of program flash, 64 KB of data RAM, and an eight-channel 12-bit ADC. The device also provides a 10-bit DAC, eight-channel DMA controller, four UART interfaces, two CAN channels, three SSP or SPI interfaces, three I2C interfaces, and motor-control PWM. These resources reduce external peripheral count in Ethernet, industrial-control, data-acquisition, and USB-connected products.
The LPC1769 architecture supports connected embedded applications without requiring separate Ethernet or USB controllers. Its eight-channel DMA controller can transfer data between memory and peripherals while the CPU performs other tasks, which is useful for high-throughput communication systems. The integrated 12-bit ADC supports analog measurements, while the 10-bit DAC supports basic analog output. Its 2.4 V to 3.6 V operating supply range accommodates common 3.3 V embedded platforms.
Typical uses include industrial Ethernet controllers, USB data loggers, CAN-connected equipment, motor-control systems, audio interfaces, and compact embedded gateways. The Ethernet MAC and USB interfaces are especially useful for network-connected monitoring and control, while the CAN channels support industrial vehicle and machine communication. The 100-pin LQFP package also exposes enough I/O and peripheral connections for designs that require more integration than a small-package MCU provides.
PCB implementation should preserve clean separation between analog and digital return paths, place decoupling capacitors close to the supply pins, and route Ethernet and USB signals according to their impedance and isolation requirements. Firmware must also be validated against the selected board, crystal configuration, memory map, bootloader, and peripheral assignments; changing order codes does not eliminate the need for system-level review.
This product page combines manufacturer specifications, interface details, application guidance, package information, and engineering-focused replacement considerations. It also highlights where an LPC17xx family member can preserve the 100-pin footprint and where differences in memory or peripheral sets require explicit hardware and firmware validation.
直接替换替代料： LPC1769FBD100K ——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： LPC1769FBD100K （相同外形与封装尺寸） ——差异在于 Package, ADC, DAC, Maximum CPU Frequency, DMA Channels.
LPC1768FBD100K
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →LPC1767FBD100K
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →LPC1766FBD100K
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →LPC1765FBD100K
✅ 直接替换联系询价
查看数据手册 →LPC1769FBD100
✅ 直接替换📋 参考替代料（不在目录中）
LPC1769FBD100K 最大额定值与电气特性
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Maximum CPU Frequency | 120 MHz |
| Program Memory | 512 KB flash (512K x 8) |
| Data Memory | 64 KB |
| Supply Voltage Range | 2.4 V to 3.6 V |
| 封装 | 100-pin LQFP, 14 x 14 mm |
| Ethernet Interface | 1 Ethernet MAC |
| USB Interface | 1 device, host, and OTG controller |
| DMA Channels | 8 channels |
| UART Interfaces | 4 channels |
| CAN Interfaces | 2 channels |
| SSP or SPI Interfaces | 3 channels |
| I2C Interfaces | 3 channels |
| ADC | 8 channels, 12-bit resolution |
| DAC | 1 channel, 10-bit resolution |
| 工作温度 | -40 °C to 85 °C |
| 安装类型 | Surface mount |
| RoHS 状态 | Unknown |
| REACH Status | Unknown |
| AEC-Q100 Qualification | Not applicable |
LPC1769FBD100K 100-pin lqfp, 14 x 14 mm 引脚配置指南
LPC1769FBD100K（100-pin lqfp, 14 x 14 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： LPC1769FBD100K.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LPC1769FBD100K 适用于 6 应用s: Industrial Ethernet Controllers, USB Data Loggers, CAN-Connected Machine Control, Industrial Sensor Acquisition, Motor Control and Automation, Connected Audio and Interface Products.
Industrial Ethernet Controllers
The LPC1769FBD100K fits industrial Ethernet controllers because its 120 MHz ARM Cortex-M3 core and 512 KB flash support protocol processing, while the integrated Ethernet MAC reduces the controller's external component count. Its eight-channel DMA controller can move network and peripheral data efficiently, and the 100-pin LQFP provides access to Ethernet, UART, timer, and control signals. The implementation still requires a suitable Ethernet PHY, isolation or magnetic coupling where required, controlled clock routing, and a carefully designed differential signal layout.
推荐
USB Data Loggers
The LPC1769FBD100K is well suited to USB data loggers because it combines USB Device, Host and OTG support with 512 KB of flash, 64 KB of RAM, and an eight-channel 12-bit ADC. Firmware can sample analog inputs and transfer records over USB while DMA reduces processor involvement in buffer movement. A practical design should place USB routing away from sensitive analog paths, use controlled impedance routing, provide stable decoupling near the MCU, and confirm host or device compliance through appropriate system testing.
推荐
CAN-Connected Machine Control
The two CAN channels, four UARTs, motor-control PWM, and 120 MHz processing core of the LPC1769FBD100K support machine controllers, gateway nodes, and industrial condition-monitoring equipment. The microcontroller can coordinate motor functions while exchanging diagnostic data over CAN, and its 512 KB flash accommodates networking, control, and diagnostic software. Each CAN interface still requires a suitable transceiver, protection strategy, termination arrangement, and timing configuration based on the network architecture.
推荐
Industrial Sensor Acquisition
The LPC1769FBD100K can serve as the central controller in industrial sensor-acquisition equipment because it combines an eight-channel 12-bit ADC, three I2C channels, three SSP or SPI channels, four UARTs, and 512 KB of program memory. These interfaces allow it to collect measurements from mixed sensor families and perform local filtering or control. Keep sensor excitation and analog inputs away from Ethernet, USB, and high-current switching paths, and follow the datasheet's analog supply and reference recommendations.
推荐
Motor Control and Automation
The LPC1769FBD100K fits embedded motor-control and automation designs that require both real-time control and multiple communications links. Its 120 MHz Cortex-M3 core, timer resources, motor-control PWM, eight-channel DMA, and 512 KB of flash allow control tasks to coexist with Ethernet, USB, CAN, and serial protocols. The design should allocate timers and DMA channels carefully, keep power stages away from sensitive signal routing, and validate timing behavior under the worst-case interrupt and communication load.
推荐
Connected Audio and Interface Products
The LPC1769FBD100K supports connected audio and interface products that need flexible serial links, moderate real-time processing, and USB connectivity. Its three SSP or SPI channels, three I2C channels, I2S, four UARTs, and USB interface can connect codecs, control interfaces, and configuration peripherals. The 100-pin LQFP also supports a broader pin budget than compact MCUs. Audio designs should separate analog and digital grounds appropriately, control clock jitter, and use impedance-aware routing for USB.
推荐
推荐产品汇总
工程参考数据： LPC1769FBD100K ——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 | LPC1768FBD100K | LPC1767FBD100K | LPC1766FBD100K | LPC1765FBD100K | LPC1769FBD100 |
|---|---|---|---|---|---|---|
| Package | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) | 100-pin LQFP (14 x 14 mm) |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Processor Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Maximum CPU Frequency | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB | 512 KB |
| Data Memory | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| USB Support | Device, Host, and OTG | Device, Host, and OTG | Device, Host, and OTG | Device, Host, and OTG | Device, Host, and OTG | Device, Host, and OTG |
| ADC | 8 channels, 12-bit | 8 channels, 12-bit | 8 channels, 12-bit | 8 channels, 12-bit | 8 channels, 12-bit | 8 channels, 12-bit |
| Supply Voltage Range | 2.4 V to 3.6 V | 2.4 V to 3.6 V | 2.4 V to 3.6 V | 2.4 V to 3.6 V | 2.4 V to 3.6 V | 2.4 V to 3.6 V |
关键差异点
- Retains the full 512 KB flash configuration （对比 LPC1765FBD100K)
- Uses the same 100-pin LQFP footprint （对比 LPC1768FBD100K)
- Matches the LPC1769 core and memory architecture （对比 LPC1769FBD100)
- Provides broad integrated connectivity （对比 LPC1766FBD100K)
设计说明
Place the required supply and bulk-decoupling capacitors close to the corresponding VDD and VSS pins, and follow the manufacturer datasheet's recommended network and ESR requirements. Keep the 3.3 V distribution path away from Ethernet magnetics, USB protection components, and motor-driver return currents. Use a continuous ground reference beneath the LQFP where the board stack-up permits, while maintaining the thermal and copper requirements needed for reliable assembly.
Treat Ethernet and USB as controlled-impedance interfaces. Route Ethernet differential pairs as a short, continuous pair over a stable reference plane, and keep USB differential traces closely coupled with minimal layer changes. Separate these routes from switching-power nodes and analog inputs. External magnetics, protection, and PHY components must be placed according to the Ethernet and USB reference design guidance used for the selected board.
Do not assume that two LPC176x members are interchangeable solely because they use a 100-pin LQFP. Compare the exact clock limits, flash and RAM capacity, Ethernet and USB availability, CAN channel count, timer resources, pin multiplexing, boot options, and package connections. After any substitution, rebuild the firmware with the replacement device configuration and retest startup, interrupts, communications, analog conversion, and motor timing.
Partition analog and digital circuitry around the MCU's dedicated supplies and ground references. Route sensor inputs away from Ethernet, USB, and switching-power paths, and use compact return connections for analog signals. The 8-channel 12-bit ADC can serve basic acquisition, but its practical accuracy still depends on reference quality, source impedance, filtering, grounding, and PCB leakage control. Validate channel accuracy in the completed assembly.
合规信息
The device is an industrial microcontroller rather than an AEC-Q100-qualified automotive part. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status require confirmation from the current manufacturer or distributor documentation.