LPC1751FBD80K - 100MHz Cortex-M3 32KB MCU | NXP
料号： LPC1751FBD80K ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $14.2397 | $14.24 |
| 10 | $14.2397 | $142.40 |
| 100 | $14.2397 | $1,423.97 |
| 500 | $14.2397 | $7,119.85 |
| 1,000 | $14.2397 | $14,239.70 |
LPC1751FBD80K 概述
A microcontroller is a programmable system-on-chip that combines a processor core, nonvolatile program memory, data memory, and peripherals in one package. The LPC1751 belongs to the ARM Cortex-M3 microcontroller -> embedded processor -> semiconductor hierarchy. Its combination of deterministic peripheral access, USB connectivity, serial interfaces, and motor-control resources makes it suitable for compact embedded control systems.
Key features include 100 MHz operation, 32 KB flash, 8 KB SRAM, a 12-bit ADC, USB Device connectivity, and extensive serial communications. The NXP product listing identifies four general-purpose timer blocks, motor-control PWM, and a quadrature encoder interface. These resources allow one controller to coordinate analog measurements, communications, motion functions, and general-purpose timing.
The ARM Cortex-M3 architecture provides a 32-bit processing environment while retaining low-power embedded operation. The integrated peripherals reduce the number of external devices required for USB, CAN, UART, SPI, I2C, ADC, DMA, and PWM functions. Designers must still validate clock, voltage, pin-multiplexing, and peripheral-configuration requirements against the manufacturer datasheet before finalizing a PCB or firmware design.
Typical applications include industrial control equipment, USB-connected data acquisition, motor and encoder control, serial gateways, instrumentation, and embedded communications systems. The ADC supports analog sensing, while CAN and multiple serial interfaces support communication with sensors, actuators, and external controllers.
A key design consideration is firmware and peripheral migration: changing the MCU, bootloader, pin mux, clock tree, or USB implementation may require software changes even when the replacement offers similar features. Validate the 80-LQFP footprint, exposed electrical requirements, and toolchain support before committing to a design.
This product record combines verified manufacturer and distributor information with practical selection guidance, interface context, design notes, and procurement-oriented references. It distinguishes LPC1751FBD80K from a generic 32-bit MCU by focusing on its 100 MHz Cortex-M3 core, 32 KB flash, 8 KB SRAM, USB, CAN, serial interfaces, ADC, DMA, motor-control PWM, and quadrature encoder capabilities.
LPC1751FBD80K 最大额定值与电气特性
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Maximum Core Frequency | 100 MHz |
| Flash Memory | 32 KB |
| Data Memory | 8 KB |
| Architecture | ARM Cortex-M3 |
| 工作电源电压 | 2.5 V / 3.3 V |
| USB | USB Device |
| DMA | 8-channel DMA controller |
| UART | 4 UARTs |
| CAN | 1 CAN channel |
| SSP | 2 SSP channels |
| SPI | 1 SPI interface |
| I2C | 2 I2C interfaces |
| ADC | 8-channel 12-bit ADC |
| Motor-Control PWM | Motor-control PWM |
| Quadrature Encoder Interface | 1 quadrature encoder interface |
| General-Purpose Timers | 4 general-purpose timer blocks |
| 封装 | 80-pin LQFP, 12 x 12 mm |
| 工作温度 | -40°C to +85°C |
| 安装类型 | Surface mount |
LPC1751FBD80K 80-pin lqfp, 12 x 12 mm 引脚配置指南
LPC1751FBD80K（80-pin lqfp, 12 x 12 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： LPC1751FBD80K.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LPC1751FBD80K 适用于 6 应用s: USB Data-Acquisition Controller, Industrial Serial Gateway, Motor and Encoder Control, CAN-Based Embedded Control, USB-to-Serial Embedded Interface, Instrumentation and Analog Monitoring.
USB Data-Acquisition Controller
The LPC1751FBD80K fits a USB-connected acquisition system because it combines an ARM Cortex-M3 core running at up to 100 MHz with a USB Device interface and an 8-channel 12-bit ADC. The MCU can sample analog channels, format data, and transfer results over USB while the DMA controller supports efficient peripheral movement. A practical design uses the ADC for sensor conditioning, USB for host connectivity, and firmware buffering for deterministic data transfer. Verify the ADC input range, sampling requirements, USB electrical implementation, and operating-temperature limits in the datasheet.
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Industrial Serial Gateway
The LPC1751FBD80K is suitable for an industrial serial gateway because the NXP product information identifies four UARTs, two I2C interfaces, one SPI interface, two SSP channels, and one CAN channel. These resources allow a single embedded controller to bridge local sensors, actuators, and service communications. The 100 MHz Cortex-M3 core supports protocol processing, while 32 KB flash and 8 KB SRAM provide the stated memory resources for gateway firmware. Confirm protocol timing, electrical levels, isolation, ESD protection, and pin multiplexing for the final industrial system.
推荐
Motor and Encoder Control
The LPC1751FBD80K can serve in a compact motor-control or position-feedback design because the verified NXP information lists motor-control PWM, four general-purpose timer blocks, a quadrature encoder interface, and an 8-channel 12-bit ADC. PWM outputs can generate actuator commands, while encoder inputs can provide motion feedback and ADC channels can monitor analog sensing signals. Firmware must coordinate timer resources and protection timing, and the hardware design must include appropriate driver, isolation, current sensing, and fault-handling circuitry beyond the MCU.
推荐
CAN-Based Embedded Control
The LPC1751FBD80K fits CAN-based embedded control because the verified NXP product information specifies one CAN channel alongside four UARTs, two I2C interfaces, SPI, SSP, DMA, and a 12-bit ADC. This combination supports a controller that receives commands, reads sensors, manages actuator outputs, and reports status through a network. The MCU itself does not replace the external CAN transceiver or protection network, so those components and termination must be selected separately. Review bit timing, transceiver compatibility, fault behavior, and firmware driver requirements before release.
推荐
USB-to-Serial Embedded Interface
The LPC1751FBD80K can implement a USB-to-serial bridge or embedded communications gateway using its USB Device interface and four UARTs. Firmware can maintain protocol translation between a USB host and one or more external serial devices, while DMA and timer resources support predictable data movement. The design should account for USB enumeration, buffer sizing, baud-rate accuracy, electrical standards, and connector protection. The listed USB bridge companion is only an option when the MCU is not being used as the USB interface itself.
推荐
Instrumentation and Analog Monitoring
The LPC1751FBD80K is applicable to instrumentation that combines analog measurement with serial reporting or local control. Its 8-channel 12-bit ADC can acquire multiple sensor channels, while the 100 MHz Cortex-M3 core supports filtering, calibration, and control calculations. The four UARTs and two I2C interfaces can connect displays, sensors, or service ports, and the 8-channel DMA controller can support efficient data movement. Analog front-end design, reference-voltage accuracy, sampling strategy, calibration storage, and noise performance require separate engineering analysis.
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推荐产品汇总
工程参考数据： LPC1751FBD80K ——对比、设计指导和合规信息。
选型指南
关键差异点
- Integrated communications and control peripherals （对比 Generic 32-bit MCU with fewer integrated interfaces)
- Motor-control and position feedback support （对比 General-purpose Cortex-M3 MCU without verified motor-control resources)
- 100 MHz embedded processing with integrated USB （对比 Lower-speed MCU requiring a separate USB interface)
设计说明
Do not treat an ARM Cortex-M3 core match as proof of replacement compatibility. LPC1751FBD80K uses an 80-LQFP package and includes specific NXP peripherals, pin multiplexing, memory organization, and clock requirements. Before substituting another MCU, compare every pin, voltage domain, peripheral function, startup behavior, and software driver requirement against the LPC1751FBD80 datasheet.
Use the manufacturer pin table as the authority for PCB layout and verify the package drawing against the selected 80-LQFP footprint. Place decoupling and signal-routing decisions according to the datasheet and application requirements, with particular care around USB, CAN, ADC inputs, timers, and high-speed clocks. Prototype the layout before production because alternate-function assignments can change which peripheral can use a physical pin.
The verified distributor data identifies the LPC1751FBD80K as a 2.5 V / 3.3 V microcontroller, but it does not provide every regulator tolerance or frequency-versus-voltage limit. Design the supply with margins required by the exact datasheet, validate startup and current behavior, and account for USB, ADC, communications, and motor-control peripherals rather than sizing the rail from the core frequency alone.
Analog, digital, USB, serial, and timing-sensitive signals should be planned together. Keep sensitive analog routing away from switching and high-current paths, follow the datasheet guidance for external components, and check connector protection requirements for exposed USB, CAN, UART, and motor interfaces. Layout validation should include signal integrity, grounding, impedance, and thermal conditions across the -40°C to +85°C stated range.
合规信息
The supplied verified web data does not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields therefore remain unknown.