LPC1754FBD80K - 100MHz Cortex-M3 128KB MCU | NXP
料号： LPC1754FBD80K ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
LPC1754FBD80K 概述
A microcontroller is a programmable integrated circuit containing a processor core, memory, and peripherals on one package. The LPC1754 belongs to the MCU and embedded-controller hierarchy, where a 32-bit ARM Cortex-M3 executes compact real-time firmware while serial interfaces connect sensors, communications equipment, human-interface modules, and actuators. Unlike a general-purpose desktop processor, this device targets embedded control with deterministic peripheral access and a compact LQFP footprint.
Principal features include a 100 MHz Cortex-M3 core, 128 KB flash, 32 KB SRAM, and 12-bit analog conversion across eight channels. The integrated USB supports device, host, and OTG operating roles, while dual SSP, SPI, dual I2C, four UART, and CAN connectivity reduce external protocol-controller requirements. Motor-control PWM and a quadrature encoder interface suit motion-control designs without requiring a separate encoder-processing device.
The architecture is organized around the ARM Cortex-M3 instruction set, on-chip SRAM, flash, direct-memory-access channels, and numerous serial peripherals. Eight-channel DMA can move data between memory and peripherals while the CPU executes other tasks, which is useful for USB, serial, and mixed-rate acquisition systems. The 12-bit ADC provides higher nominal resolution than an 8-bit converter, although actual signal-chain accuracy still depends on reference, analog-layout, and noise conditions.
Typical uses include industrial data acquisition, USB-connected embedded controls, CAN-equipped field equipment, motor or encoder monitoring, multi-serial sensor hubs, and low-power industrial controllers. The 100 MHz core provides useful processing headroom for protocol handling and control logic, while low power consumption remains important in embedded systems.
A key design consideration is confirming firmware, bootloader, USB routing, and all assigned peripherals against the 80-pin pinout before PCB release. Keep analog inputs and USB routing away from noisy switching nodes, provide the specified decoupling, and validate every unused pin according to the manufacturer datasheet. The verified sources also contain conflicting frequency references, so use 100 MHz—the value repeated by NXP and the distributor listing—for this ordering variant.
This page consolidates verified NXP and distributor information, explicitly flags unavailable parameters, avoids unsupported replacement claims, and adds practical selection and design guidance beyond the basic distributor listing. Pricing and live stock status should be confirmed directly because the supplied results did not contain numeric prices or explicit inventory quantities.
直接替换替代料： LPC1754FBD80K ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
LPC1754FBD80
✅ 直接替换📋 参考替代料（不在目录中）
LPC1754FBD80K 最大额定值与电气特性
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Core | ARM Cortex-M3 |
| Maximum Stated Operating Frequency | 100 MHz |
| Flash Memory | 128 KB |
| Data Memory | 32 KB |
| USB | Device, Host, and OTG |
| DMA Controller | 8 channels |
| UART | 4 channels |
| CAN | 1 channel |
| SSP | 2 channels |
| SPI | 1 channel |
| I2C | 2 channels |
| ADC | 8-channel, 12-bit |
| DAC | Available; channel and resolution not provided |
| Motor-Control PWM | Available; channel count not provided |
| Quadrature Encoder Interface | Available; channel count not provided |
| 封装 | 80-pin LQFP, 12 x 12 mm |
| 电源电压 | 2.5 V or 3.3 V |
| 安装类型 | Surface mount |
LPC1754FBD80K 80-pin lqfp, 12 x 12 mm 引脚配置指南
LPC1754FBD80K（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： LPC1754FBD80K.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LPC1754FBD80K 适用于 6 应用s: Industrial Data-Acquisition Controller, USB-Connected Embedded Control, CAN-Connected Field Equipment, Motor and Encoder Monitoring, Multi-Sensor Communication Hub, Protocol Gateway and Serial Concentrator.
Industrial Data-Acquisition Controller
The LPC1754FBD80K fits industrial acquisition equipment that must combine analog measurements with several communication paths. Its eight-channel, 12-bit ADC supplies a higher nominal resolution than an 8-bit interface, while 128 KB of flash and 32 KB of data memory hold firmware, acquisition control, and buffering. Four UARTs, two SSP channels, SPI, two I2C buses, and CAN provide multiple paths to sensors, converters, service ports, and field networks. The 100 MHz Cortex-M3 core leaves processing capacity for calibration and local control. Eight DMA channels can transfer peripheral data more efficiently, although the complete electrical, timing, and pin-multiplexing details must be confirmed from NXP documentation.
推荐
USB-Connected Embedded Control
The LPC1754FBD80K is appropriate for a USB-connected embedded controller because it integrates USB Device, Host, and OTG modes at a 100 MHz Cortex-M3 operating frequency. A design can place configuration, logging, control, and peripheral firmware in 128 KB of flash while using its 32 KB of data memory for runtime state. Four UARTs and the SSP, SPI, I2C, and CAN interfaces allow the USB-facing controller to bridge several external devices. Eight DMA channels may reduce CPU involvement during USB or serial transfers. The USB electrical layout still requires exact pin, routing, termination, and decoupling information from the manufacturer datasheet.
推荐
CAN-Connected Field Equipment
The LPC1754FBD80K can serve as the local controller in CAN-equipped field equipment because NXP identifies one integrated CAN channel alongside a 100 MHz Cortex-M3 core. Its remaining four UARTs, two SSP controllers, SPI, and dual I2C channels allow local sensors and human-interface circuits to coexist with the CAN network without relying on a separate protocol controller in every design. The 128 KB flash supports embedded control firmware, while 32 KB of data memory and eight DMA channels assist protocol and data movement. Exact transceiver requirements, I/O levels, termination, timing, and pin assignments must be selected from verified NXP documentation rather than inferred.
推荐
Motor and Encoder Monitoring
The LPC1754FBD80K supports motor-oriented embedded functions through its listed motor-control PWM and quadrature encoder interface. Those features suit position monitoring, actuator diagnostics, or supervisory motor-control designs where the MCU must combine encoder input with other real-time tasks. At 100 MHz, the Cortex-M3 core provides useful control headroom, while eight DMA channels can move data among timers, serial interfaces, and memory. The design should still budget interrupt latency, timer synchronization, input filtering, and protection independently of the nominal CPU frequency. Exact PWM channels, encoder channels, timer modes, and electrical limits are not stated in the supplied snippets.
推荐
Multi-Sensor Communication Hub
The LPC1754FBD80K is well matched to a multi-sensor hub because it combines four UARTs, two SSP controllers, one SPI controller, and two I2C controllers in one 80-pin LQFP device. Those interfaces can connect sensors with different bus requirements while the Cortex-M3 core performs normalization, filtering, logging, and application control. The 128 KB flash stores firmware for multiple protocol paths, and the eight-channel 12-bit ADC can handle suitable directly connected analog inputs. Eight DMA channels support efficient movement of bus and sampled data. Engineers must verify pin multiplexing, voltage domains, bus speed, address conflicts, and any level translation in the exact datasheet.
推荐
Protocol Gateway and Serial Concentrator
The LPC1754FBD80K can act as a protocol gateway between USB, CAN, UART, SPI, and I2C endpoints because all of these interfaces are listed by NXP. A practical design could expose configuration through USB, bridge CAN messages to a local serial device, and use I2C or SPI for sensor or storage access. The 100 MHz Cortex-M3 core provides computational capacity for framing and routing, while eight DMA channels can support concurrent peripheral transfers. Firmware design must define buffering, timeout behavior, flow control, and fault isolation because no single peripheral should be assumed to handle arbitrary concurrent traffic. Package pin assignments and peripheral limitations require direct datasheet validation.
推荐
推荐产品汇总
工程参考数据： LPC1754FBD80K ——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 | LPC1754FBD80 |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Package | 80-pin LQFP (12 x 12 mm) | 80-pin LQFP |
| Core | ARM Cortex-M3 | ARM Cortex-M3 |
| Operating Frequency | 100 MHz | 100 MHz |
| Flash Memory | 128 KB | 128 KB |
| Data Memory | 32 KB | 32 KB |
| USB Support | Device, Host, and OTG | Device, Host, and OTG |
| Serial and Control Peripherals | 4 UART, 1 CAN, 2 SSP, 1 SPI, 2 I2C, 8-channel 12-bit ADC, DAC, motor-control PWM, quadrature encoder interface | 4 UART, 1 CAN, 2 SSP, 1 SPI, 2 I2C, 8-channel 12-bit ADC, DAC, motor-control PWM, quadrature encoder interface |
| Supply Voltage | 2.5 V or 3.3 V | 2.5 V or 3.3 V |
关键差异点
- Single-device integration across USB, CAN, serial, and analog functions （对比 STM32F103)
- DMA resources for concurrent embedded data movement （对比 ATSAM3X)
- 100 MHz processing with 128 KB flash and 32 KB data memory （对比 Tiva C series)
设计说明
Do not release the PCB until all 80 LQFP assignments are checked against the exact NXP pin table, including alternate functions, debug pins, clock inputs, USB pins, analog inputs, and supply pins. The verified snippets establish the package and major functions but do not provide pin numbers. Route USB differential pairs as a controlled impedance pair with the shortest practical path and keep return-path continuity, while isolating USB routing from ADC inputs and switching-converter nodes. Program unused pins only in accordance with NXP's termination recommendations.
Plan separate, well-decoupled supply paths for the digital core and any analog reference or ADC-related circuitry. The verified comparison data identifies 2.5 V or 3.3 V operation, but exact regulator requirements, voltage tolerances, internal core voltage, and capacitor values are absent. Follow the current NXP datasheet and errata for regulator selection and capacitor placement. Place bulk and high-frequency decoupling close to the relevant package pins, keep analog ground-return planning deliberate, and measure ripple and startup behavior on the first article rather than relying only on simulation.
Assign the eight ADC channels according to the actual signal bandwidth and required isolation rather than simply filling the converter. NXP verifies an eight-channel, 12-bit ADC, but the supplied sources do not state sample rate, input impedance, acquisition time, reference limits, or channel-to-channel coupling. These missing values directly determine source impedance, sampling time, and drive strength. Keep sensitive analog traces short, keep digital clocks and switching nodes away, provide a clean reference strategy, and verify acquisition timing using the exact datasheet and reference design guidance.
Do not treat the LPC1754FBD80 and LPC1754FBD80K suffix difference as harmless without confirmation. The retrieved NXP Community threads ask whether they are drop-in replacements, but do not provide an authoritative equivalence conclusion in the supplied snippet. Procurement or engineering teams should compare ordering codes, temperature grade, marking, and any configuration suffix before substitution. Likewise, do not use STM32F103, ATSAM3X, or Tiva C merely because they are Cortex-M products; no verified same-package pin compatibility was supplied for those families.
合规信息
The supplied verified snippets do not provide authoritative compliance statements for the exact LPC1754FBD80K ordering code. AEC-Q100 status must not be inferred merely because the product family has industrial applications.