LPC1778FBD208K - 120MHz Cortex-M3 MCU with 512KB Flash | NXP
부품 번호: LPC1778FBD208K ✓ 활성LPC1778FBD208K 개요
A microcontroller is a programmable semiconductor that combines a processor core, memory, and peripheral interfaces on one integrated circuit. The LPC1778 belongs to the Arm Cortex-M3 microcontroller, 32-bit embedded-controller, and integrated-circuit hierarchy. Its Cortex-M3 core operates at up to 120 MHz, allowing real-time control and network-oriented embedded workloads to share one controller while reducing the number of discrete components required on the board.
Key features include 512 kB of flash for firmware, 96 kB of SRAM for working memory, and the extensive communication peripheral set listed by NXP. The integrated Ethernet and USB 2.0 interfaces support connected equipment without requiring separate controllers. Five UARTs, two CAN channels, three SSP/SPI interfaces, three I2C interfaces, and I2S provide options for sensors, displays, industrial buses, storage, audio, and communications links. The 8-channel 12-bit ADC and 10-bit DAC support mixed-signal measurement and control.
The 208-pin LQFP package exposes the device’s broad I/O and interface resources, including Ethernet, USB, CAN, serial buses, analog channels, motor-control signals, and external-memory interfaces. This high pin count is valuable when a system needs many independently connected peripherals without multiplexing several functions through a smaller package. Its 32-bit architecture and 120 MHz operating frequency provide ample compute performance for protocol handling, data acquisition, motor control, and supervisory tasks.
Typical uses include industrial automation and factory equipment, networked embedded controllers, USB-to-Ethernet gateways, motor-control systems, data-acquisition equipment, and communications infrastructure. Ethernet and USB make it appropriate for supervisory controllers or gateways, while the CAN, serial, and analog interfaces can connect sensors and actuators. The integrated ADC, DAC, QEI, and motor-control features also suit position and closed-loop control applications.
A critical design consideration is the 208-pin package’s routing and decoupling requirements. Place the required power and bypass capacitors close to their associated supply pins, provide a clean 3.3 V rail as identified by the verified distributor information, and route high-speed Ethernet and USB signals with controlled impedance and continuous reference planes. Firmware should also validate startup, clock configuration, memory mapping, and peripheral initialization before enabling external actuators.
This page consolidates verified NXP and distributor information, interface details, application fit, and design guidance into one engineering-focused product record. It also distinguishes exact drop-in alternatives from broader functional equivalents, helping procurement and engineering teams avoid treating pin-compatible replacements and redesign-level substitutions as interchangeable.
드롭인 대체품: LPC1778FBD208K — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
LPC1778FBD208
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LPC1778FBD208K 최대 정격 & 전기적 특성
| Product Type | 32-bit microcontroller (MCU) |
| Processor Core | Arm Cortex-M3 |
| Maximum CPU Frequency | 120 MHz |
| Flash Memory | 512 kB |
| Data Memory | 96 kB |
| Architecture | 32-bit |
| Ethernet Support | Yes |
| USB Support | USB 2.0 device, host, and OTG |
| DMA Controller | 8 channels |
| UART Count | 5 |
| CAN Channel Count | 2 |
| SSP/SPI Interface Count | 3 |
| I2C Interface Count | 3 |
| I2S Support | Yes |
| ADC Resolution | 12-bit |
| ADC Channel Count | 8 |
| DAC Resolution | 10-bit |
| Quadrature Encoder Interface | Yes |
| SD/MMC Support | Yes |
| Motor Control Support | Yes |
| 공급 전압 | 3.3 V |
| Package Type | 208-pin LQFP |
| Package Dimensions | 28 mm x 28 mm |
| 실장 유형 | Surface mount |
| Automotive Qualification | AEC-Q100 |
LPC1778FBD208K 28 mm x 28 mm 핀 구성 가이드
LPC1778FBD208K(28 mm x 28 mm 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: LPC1778FBD208K.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
LPC1778FBD208K 적합 용도: 6 애플리케이션s: Industrial Ethernet Gateway, USB-to-Ethernet Control Hub, Factory Automation Controller, Motor Control and Positioning System, Data Acquisition and Monitoring Unit, USB Communications Adapter.
Industrial Ethernet Gateway
The LPC1778FBD208K fits an industrial Ethernet gateway because it combines a 120 MHz Arm Cortex-M3 core with integrated Ethernet, USB 2.0 device and OTG support, 512 kB of flash, and 96 kB of data memory. The 8-channel DMA controller can transfer network and serial data while the Cortex-M3 handles protocol processing, local control, and diagnostics. Five UARTs and three I2C interfaces allow the gateway to connect sensors, local displays, and service controllers without excessive discrete interfacing. Ethernet magnetics, proper termination, controlled-impedance routing, and careful separation between analog and high-speed digital sections remain essential.
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USB-to-Ethernet Control Hub
The LPC1778FBD208K can serve as the central controller in a USB-to-Ethernet hub because USB 2.0 device, host, and OTG functions coexist with Ethernet and an 8-channel DMA controller. Its 120 MHz processing rate supports protocol handling and supervisory tasks, while 512 kB of flash accommodates firmware and 96 kB of data memory supports active buffers. The design should validate USB impedance, connector protection, Ethernet magnetics, ground continuity, and enumeration behavior. DMA allocation and buffer ownership must also be tested under sustained traffic to avoid overrun conditions.
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Factory Automation Controller
The LPC1778FBD208K is suitable for factory automation because it combines 120 MHz Cortex-M3 processing with 5 UARTs, 2 CAN channels, 3 SSP/SPI interfaces, 3 I2C interfaces, an 8-channel 12-bit ADC, and a 10-bit DAC. This resource mix can supervise sensors, actuators, remote I/O, and service interfaces within one controller. The 208-pin LQFP exposes the large peripheral set without requiring an external interface multiplexer. Practical deployments should include isolated power and communication interfaces where required, surge protection for exposed wiring, watchdogs, and firmware checks that prevent unsafe outputs after a fault.
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Motor Control and Positioning System
The LPC1778FBD208K supports motor-control and positioning systems through its 120 MHz control capability, QEI support, dedicated motor-control features, 8-channel 12-bit ADC, and 10-bit DAC. The ADC channels can monitor motor and system feedback, while the QEI interface assists with rotary position measurement. The 208-pin LQFP provides access to the required control and feedback signals. Designers must still account for gate-drive isolation, current sensing, protection timing, and analog conditioning; firmware should include defined shutdown states and verify safe outputs after reset or communication failure.
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Data Acquisition and Monitoring Unit
The LPC1778FBD208K can act as a data-acquisition unit because its 8-channel 12-bit ADC operates alongside 96 kB of data memory, 512 kB of flash, 3 I2C channels, 3 SSP/SPI channels, and 5 UARTs. Analog measurements can be collected while serial and bus-connected sensors feed data into the 120 MHz Cortex-M3 core. The 10-bit DAC can support stimulus or control outputs where appropriate. Practical implementations should condition analog inputs, account for sampling and conversion time, isolate noisy power domains, and provide buffering so acquisition activity does not disrupt communication or control tasks.
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USB Communications Adapter
The LPC1778FBD208K fits a USB communications adapter because it provides USB 2.0 device, host and OTG support alongside 5 UARTs, 3 SSP/SPI interfaces, 3 I2C interfaces, and 2 CAN channels. A single MCU can manage USB enumeration, protocol conversion, configuration, and diagnostic reporting at up to 120 MHz. The 8-channel DMA controller assists with moving data between USB and external interfaces, while 96 kB of data memory provides working space. Production validation should cover enumeration across host versions, hot-plug behavior, ESD protection, connector layout, and sustained data-transfer throughput.
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추천 제품 요약
엔지니어링 참조 데이터: LPC1778FBD208K — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | LPC1778FBD208 |
|---|---|---|
| Package | 208-pin LQFP (28 mm x 28 mm) | 208-pin LQFP (28 mm x 28 mm) |
| Brand | NXP Semiconductors | NXP Semiconductors |
| Processor Core | Arm Cortex-M3 | Arm Cortex-M3 |
| Maximum CPU Frequency | 120 MHz | 120 MHz |
| Flash Memory | 512 kB | 512 kB |
| Data Memory | 96 kB | 96 kB |
| Connectivity | Ethernet, USB 2.0 device/host/OTG, 2 CAN, 5 UART | Ethernet, USB 2.0 device/host/OTG, 2 CAN, 5 UART |
| 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 |
주요 차별점
- Exact same-package manufacturer ordering option (vs LPC1778FBD208)
- High peripheral integration in a single MCU (vs STM32F429NIH6TR)
- Dedicated DMA support for connected embedded workloads (vs LPC1759FBD80K)
설계 노트
The verified distributor listing identifies a 3.3 V supply for LPC1778FBD208K. Provide each supply domain with the decoupling and bulk capacitance required by the manufacturer datasheet, place high-frequency bypass capacitors adjacent to the relevant pins, and verify the complete 208-pin footprint against the official NXP package drawing before fabrication. Ethernet and USB interfaces should receive filtered, low-impedance supply paths where required. Do not infer capacitor values from generic MCU designs because the selected regulator, clocking scheme, and transceiver implementation determine the required energy and filtering.
The 208-pin LQFP footprint has a dense lead pitch and requires careful escape routing between the MCU and Ethernet, USB, CAN, ADC, DAC, and motor-control functions. Follow the official NXP land pattern and paste stencil rather than relying on a generic LQFP footprint. Sequence the layout to keep high-speed Ethernet and USB routes short and continuous, provide an uninterrupted ground reference, separate analog inputs from switching nodes, and reserve unobstructed access for inspection and rework.
Ethernet and USB are the most sensitive digital interfaces on this device because they combine many perimeter pins with high-speed routing requirements. Use controlled-impedance routing based on the actual board stack-up, maintain continuous reference planes, avoid stubs and unnecessary vias, and apply manufacturer-recommended termination. Place the Ethernet PHY and magnetics close to the relevant MCU pins where the reference design specifies it. Validate signal integrity and protocol compliance with eye diagrams or equivalent measurements rather than relying only on functional enumeration.
Do not substitute a broadly similar Cortex-M3 or Cortex-M4 device without checking every multiplexed peripheral and pin. The LPC1778FBD208K has 208 exposed pins and combines Ethernet, USB, two CAN channels, five UARTs, three SSP/SPI ports, three I2C ports, I2S, ADC, DAC, QEI, SD/MMC, and motor-control resources. Boot pins, power pins, debug functions, and peripheral multiplexing can differ even when CPU frequency and memory capacity are similar. Require a complete pin table, memory map comparison, and firmware porting plan before approving any substitution.
규정 준수 정보
The Arrow distributor result identifies LPC1778FBD208K as automotive AEC-Q100. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status were not explicitly provided in the verified data. The automotive statement applies to the ordering code shown by that distributor listing.
