LPC1788FBD208K - 120MHz Cortex-M3 MCU | NXP Semiconductors
料号： LPC1788FBD208K ✓ 量产中LPC1788FBD208K 概述
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals on one integrated circuit. The LPC1788 belongs to the Cortex-M microcontroller, embedded microcontroller, and 32-bit microcontroller hierarchies. Its Cortex-M3 architecture provides deterministic control-oriented performance while the large package exposes substantially more I/O than smaller microcontrollers, making the device suitable for systems requiring numerous communications channels, analog inputs, and external memory interfaces.
Key features include Ethernet, USB 2.0 Host, OTG, and Device support, an eight-channel DMA controller, five UARTs, two CAN channels, three SSP or SPI interfaces, three I2C interfaces, and I2S. The device also provides an eight-channel 12-bit ADC, a 10-bit DAC, a quadrature encoder interface, an LCD controller, and SD or MMC connectivity. These integrated resources reduce the need for external interface controllers in connected embedded equipment.
The 512 kB flash provides on-chip firmware storage, while 96 kB of SRAM supports working memory, protocol stacks, display buffers, and acquisition data. The eight-channel DMA controller can transfer data independently of the processor, improving responsiveness for Ethernet, USB, audio, and display workloads. The 120 MHz Cortex-M3 core provides the processing headroom required for network protocol handling, control loops, and simultaneous peripheral activity.
Typical applications include industrial gateways and factory automation controllers, USB-to-Ethernet communication equipment, medical monitoring systems, audio and communications equipment, data acquisition controllers, and HMI systems with LCD output. The Ethernet and USB interfaces are especially useful for connected products requiring firmware updates or network management, while the CAN, UART, I2C, and SPI interfaces support mixed industrial connectivity.
When designing around the LPC1788FBD208K, verify every external signal against the complete 208-pin datasheet pinout and preserve adequate decoupling around the 3.3 V supply. The broad peripheral set increases pin and routing complexity, so a multilayer board with a controlled ground plane is generally preferable to a dense single-layer implementation. Firmware should also account for USB, Ethernet, and DMA activity when allocating SRAM and validating timing.
This product record combines verified manufacturer specifications, distributor availability, package information, and application-oriented design guidance. It also distinguishes exact-device order variants from broader MCU families that are not automatically drop-in replacements, helping engineers avoid assuming that matching memory size or package alone guarantees peripheral, pin, and software compatibility.
直接替换替代料： LPC1788FBD208K ——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： LPC1788FBD208K （相同外形与封装尺寸） ——差异在于 ADC, Architecture, DAC, Data Memory, I2C Interfaces.
LPC1788FBD208
✅ 直接替换📋 参考替代料（不在目录中）
LPC1788FBD208K 最大额定值与电气特性
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Maximum CPU Frequency | 120 MHz |
| Flash Memory | 512 kB |
| Data Memory | 96 kB |
| Architecture | 32-bit ARM Cortex-M3 |
| 电源电压 | 3.3 V |
| Ethernet Support | Yes |
| USB Support | USB 2.0 Host, OTG, and Device |
| DMA Channels | 8 channels |
| UART Interfaces | 5 |
| CAN Interfaces | 2 channels |
| SSP or SPI Interfaces | 3 |
| I2C Interfaces | 3 |
| ADC | 8 channels, 12-bit |
| DAC | 10-bit |
| 封装 | 208-pin LQFP, 28 mm x 28 mm |
| 安装类型 | Surface mount |
| Automotive Qualification | AEC-Q100 |
LPC1788FBD208K 208-pin lqfp, 28 mm x 28 mm 引脚配置指南
LPC1788FBD208K（208-pin lqfp, 28 mm x 28 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： LPC1788FBD208K.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LPC1788FBD208K 适用于 6 应用s: Industrial Ethernet Gateway, Factory Automation Controller, USB Data-Acquisition Unit, Medical Monitoring System, Audio Communications Controller, LCD Human-Machine Interface.
Industrial Ethernet Gateway
The LPC1788FBD208K fits an industrial Ethernet gateway because its 120 MHz Cortex-M3 core can process network traffic while dedicated peripherals handle communications concurrently. Ethernet and USB 2.0 Host, OTG, and Device support enable wired connectivity, local service access, and firmware update paths, while the eight-channel DMA controller reduces processor involvement during packet movement. The three I2C and three SSP/SPI interfaces can connect sensors, transceivers, storage, and configuration devices. A practical design should isolate external network circuitry, provide robust 3.3 V regulation, and verify Ethernet magnetics and PHY requirements against the manufacturer reference design.
Factory Automation Controller
The LPC1788FBD208K is suitable for factory automation because it combines two CAN channels, five UARTs, three SSP/SPI interfaces, three I2C ports, and an eight-channel 12-bit ADC in one device. A controller can use CAN for distributed motion or machine communication, UART for local service consoles, and the analog inputs for sensors, while the 120 MHz Cortex-M3 core executes control logic. DMA can move sampled or buffered data with limited CPU intervention. Board design should include surge protection, isolated communication boundaries where required, careful grounding, and firmware checks that verify controller timing under concurrent bus activity.
USB Data-Acquisition Unit
The LPC1788FBD208K supports a compact USB-connected data-acquisition design by combining USB 2.0 Device support with an eight-channel 12-bit ADC and eight-channel DMA. The processor can supervise acquisition and format data for a host computer while DMA transfers samples between peripherals and SRAM. Its 512 kB flash supports substantial firmware, and 96 kB of data memory provides space for buffers, protocol stacks, and working variables. The analog section still requires careful reference, input-range, and anti-aliasing design, while the USB implementation must follow NXP's recommended routing and impedance guidance.
Medical Monitoring System
The LPC1788FBD208K can serve as the central controller in a medical monitoring system where acquisition, communications, display, and user-interface functions must coexist. The eight-channel 12-bit ADC supports multi-sensor sampling, while Ethernet and USB provide data transfer to a host or service equipment. Five UARTs, three SSP/SPI interfaces, three I2C ports, and an LCD controller support sensors, storage, front-panel displays, and accessories. These capabilities reduce peripheral count, but medical-system qualification, patient-safety isolation, electrode protection, and firmware validation remain system-level obligations that the MCU specification alone does not satisfy.
Audio Communications Controller
The LPC1788FBD208K is appropriate for an audio communications controller because it includes I2S, USB, Ethernet, and multiple serial interfaces around a 120 MHz Cortex-M3 core. I2S can connect to a digital audio codec, DMA can sustain streaming transfers, and the remaining peripherals can manage controls, indicators, configuration flash, or network management. The large 208-pin LQFP package exposes enough pins for audio and communications functions but requires careful allocation and PCB routing. Designers should verify supported audio clocks, data formats, DMA interactions, and impedance-controlled signal routing in the LPC1788 documentation.
LCD Human-Machine Interface
The LPC1788FBD208K fits an LCD-based human-machine interface because it integrates an LCD controller, Ethernet, USB, five UARTs, and a 120 MHz processor core. The LCD controller can drive a local operator display, while USB or Ethernet supports configuration, diagnostics, and remote supervisory access. Three I2C and three SSP/SPI interfaces permit use with touch controllers, memory, sensors, and expansion hardware. Firmware should allocate SRAM carefully for display buffers and network stacks, and the PCB should separate display and communication routing from sensitive analog inputs to reduce coupling and improve signal integrity.
工程参考数据： LPC1788FBD208K ——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 | LPC1788FBD208 |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Package | 208-pin LQFP, 28 mm x 28 mm | 208-pin LQFP, 28 mm x 28 mm |
| Core | Arm Cortex-M3, 32-bit | Arm Cortex-M3, 32-bit |
| Maximum CPU Frequency | 120 MHz | 120 MHz |
| Flash Memory | 512 kB | 512 kB |
| Data Memory | 96 kB | 96 kB |
| Ethernet and USB | Ethernet and USB 2.0 Host/OTG/Device | Ethernet and USB 2.0 Host/OTG/Device |
| UART and CAN Interfaces | 5 UARTs and 2 CAN channels | 5 UARTs and 2 CAN channels |
| Analog Conversion | 8-channel 12-bit ADC and 10-bit DAC | 8-channel 12-bit ADC and 10-bit DAC |
| Supply Voltage | 3.3 V | 3.3 V |
关键差异点
- High peripheral integration in one MCU （对比 LPC1788FBD208)
- Dedicated mixed-signal conversion resources （对比 LPC1788FBD208)
- Broad serial and display connectivity （对比 LPC1788FBD208)
设计说明
The LPC1788FBD208K uses a 208-pin LQFP footprint on a 28 mm by 28 mm package, so escape routing and fanout require careful planning. Place decoupling capacitors at the supply pins with short ground returns, preserve a continuous ground plane where possible, and route high-speed clocks and communications lines away from analog inputs. Verify every pin against the manufacturer package drawing because the verified excerpts do not provide a complete numbered pin list.
The device operates from a 3.3 V supply and includes USB, Ethernet, analog, and high-speed digital peripherals, so power planning must cover both average demand and transient activity. Use a low-noise 3.3 V regulator with suitable startup behavior, isolate sensitive analog rails where the architecture permits, and validate the regulator against the load current and thermal requirements stated in the full datasheet. Do not derive those unverified limits from the distributor summary.
Ethernet, USB, I2S, and clock signals have different routing and return-path requirements. Follow the NXP recommended layouts for each interface, including controlled-impedance routing where specified, continuous reference planes, short return paths, and protection devices selected for the actual data rates. Place ESD protection close to external connectors and keep its capacitance within the interface budget.
A similar flash size, package name, or Cortex-M core does not prove that another MCU is a drop-in replacement. The verified NXP community result states that LPC546xx is not pin-to-pin compatible with the target, and the LPC408x discussion concerns LPC1778x. Check pin-by-pin multiplexing, voltage, clock, memory, peripheral, package, and firmware differences before approving any substitute.
合规信息
AEC-Q100 automotive qualification is explicitly identified by the verified Arrow and Datasheets.com listings. The supplied excerpts do not directly substantiate RoHS, REACH, lead-free, halogen-free, or conflict-minerals status.
