LPC1857JBD208E - 180MHz Cortex-M3 1MB MCU | NXP
N.º de pieza: LPC1857JBD208E ✓ ActivoLPC1857JBD208E Descripción general
An ARM Cortex-M3 microcontroller is a 32-bit embedded processor within the ARM Cortex-M family of real-time microcontroller products. Its three-stage pipeline and integrated system features support deterministic embedded control, while dedicated communication peripherals reduce the need for external controllers. The LPC1857 therefore belongs to the hierarchy microcontroller, embedded processor, semiconductor, and electronic component.
Principal features include a 1 MB flash code-storage capacity, 136 kB of SRAM, operation up to 180 MHz, two HS USB interfaces, Ethernet connectivity, and LCD support. The combination of substantial on-chip memory and integrated connectivity allows firmware, graphical interfaces, protocol stacks, and data-processing functions to be consolidated into one device. The 208-pin LQFP package also provides a large pin count for systems requiring numerous I/O, communications, analog, and debug connections.
The LPC1857 family uses the ARM Cortex-M3 architecture, which provides a 32-bit processing environment with deterministic interrupt-oriented execution and enhanced debugging support. Its integration of USB, Ethernet, LCD, and extensive GPIO resources makes it more suitable for complex embedded platforms than a basic general-purpose microcontroller. Detailed flash organization, SRAM banking, peripheral pin assignments, electrical limits, and clock-tree values should be confirmed in the manufacturer datasheet for the exact ordering code.
Typical applications include industrial Ethernet controllers, USB-connected data acquisition equipment, medical monitoring systems, HMI display controllers, building automation equipment, and network-connected embedded control products. Two USB interfaces permit simultaneous device-role and host/device connectivity, while Ethernet supports networked monitoring and control. The LCD interface is useful in operator panels and local graphical displays.
Designers should preserve the exact 208-pin LQFP land pattern, provide the required decoupling and clock circuitry, and validate every signal connected to the numerous peripheral pins. Firmware, peripheral configuration, and board-level timing should be checked against the NXP documentation, especially when using the Ethernet, USB, LCD, or high-speed memory interfaces. This page combines verified source facts with package-aware alternatives and practical engineering guidance.
Alternativas directas para LPC1857JBD208E — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con LPC1857JBD208E (mismo factor de forma y huella) — difiere en Package, Architecture, Flash Memory, LCD Support, Product Type.
LPC4357JBD208E
✅ Sustitución directaConsulte el precio
Ver hoja de datos →LPC1853JBD208E
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
LPC1855JBD208E
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
LPC1857JBD208
✅ Sustitución directaConsulte el precio
Ver hoja de datos →LPC1860JBD208E
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
LPC1857JBD208E Valores máximos y características eléctricas
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Maximum CPU Frequency | 180 MHz |
| Flash Memory | 1 MB (1M x 8) |
| SRAM | 136 kB |
| CPU Architecture | ARM Cortex-M3 |
| Pipeline | 3-stage |
| USB Interfaces | 2 HS USB |
| Ethernet Support | Yes |
| LCD Support | Yes |
| Encapsulado | 208-LQFP (28 mm x 28 mm) |
| Número de pines | 208 pins |
| Tipo de montaje | Surface mount |
| Ancho del bus de datos | 32-bit |
Guía de configuración de pines de LPC1857JBD208E 208-lqfp (28 mm x 28 mm)
Configuración de pines para LPC1857JBD208E (encapsulado 208-lqfp (28 mm x 28 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para LPC1857JBD208E.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
LPC1857JBD208E es adecuado para 6 aplicacións: Industrial Ethernet Control, USB Data Acquisition, Medical Monitoring Console, Industrial HMI Display, Building Automation Gateway, Networked Test and Control.
Industrial Ethernet Control
The LPC1857JBD208E fits industrial Ethernet controllers because it combines a 180 MHz ARM Cortex-M3 core, 136 kB of SRAM, and integrated Ethernet connectivity in one 208-LQFP device. The 1 MB flash capacity can hold networking stacks, control firmware, diagnostics, and configuration data without requiring a separate external memory interface. Its large pin count also supports isolated communication signals, sensors, actuators, and local status indicators. The main engineering consideration is verifying the exact Ethernet PHY, connector isolation, magnetics, and board-level signal requirements in the manufacturer documentation. Because the device also includes two HS USB interfaces, a product can expose local service connections alongside wired network control, reducing component count and simplifying a shared firmware architecture.
Recomendado
USB Data Acquisition
The LPC1857JBD208E is suitable for USB-connected data-acquisition equipment because it integrates two HS USB interfaces and provides 1 MB of flash plus 136 kB of SRAM for sampling, buffering, and protocol handling. One USB interface can serve as a direct host or device connection while another supports auxiliary connectivity. At 180 MHz, the Cortex-M3 core can coordinate sensor acquisition, filtering, and data transfer while the LQFP package exposes a broad selection of general-purpose I/O. System designers should confirm the exact USB host or device roles, transceiver requirements, power states, and supported USB classes from the NXP documentation. Board layout must also isolate high-speed USB routing from sensitive analog inputs and provide compliant decoupling.
Recomendado
Medical Monitoring Console
The LPC1857JBD208E can support medical monitoring and diagnostic consoles that combine local data processing with USB, Ethernet, and display connectivity. Its 180 MHz Cortex-M3 core is suitable for handling sensor data, control logic, and communication tasks, while 136 kB of SRAM provides room for working buffers. The two HS USB interfaces allow a device to retain a direct service connection while using Ethernet for clinical or facility networking. The LCD interface makes the part relevant to compact operator interfaces where local status or trend information is required. Designers must segregate analog sensor pathways from digital processing, validate appropriate isolation where required, and confirm all medical-system requirements independently; compliance is not implied merely by the presence of Ethernet and USB.
Recomendado
Industrial HMI Display
The LPC1857JBD208E is appropriate for an industrial human-machine interface because it integrates an LCD interface, Ethernet, two HS USB interfaces, and a large GPIO complement. The 1 MB flash provides room for display assets, fonts, control firmware, and network services, while 136 kB of SRAM supports page composition and input handling. At 180 MHz, the Cortex-M3 processor can drive an operator display and execute supervisory-control logic concurrently. The 208-pin LQFP package is useful when the design requires parallel display signals, keys, alarm outputs, and communication peripherals in parallel. The primary design task is assigning every LCD and peripheral signal from the authoritative pin table, then validating display timing and signal integrity at the selected panel interface.
Recomendado
Building Automation Gateway
The LPC1857JBD208E suits building-automation gateways that must connect sensors and field equipment to a network while also supporting local USB service functions. Its Cortex-M3 processor runs at up to 180 MHz, while 1 MB flash and 136 kB SRAM accommodate protocol gateways, configuration data, and short-term buffering. Integrated Ethernet and LCD support enable connected controllers with local diagnostic displays, and the 208-pin package provides access to numerous I/O for relays, digital inputs, and bus peripherals. A robust design should use the available pins for sensor conditioning or isolated interfaces rather than routing noisy loads directly through the MCU. Firmware should include startup validation and recovery behavior because this gateway role often involves intermittent links and field-maintenance operations.
Recomendado
Networked Test and Control
The LPC1857JBD208E can be used in networked test and control equipment that combines stimulus generation, data capture, USB service connectivity, and Ethernet reporting. The 180 MHz Cortex-M3 core supports deterministic interrupt-driven sequencing, the 1 MB flash holds test programs and configuration data, and 136 kB of SRAM accommodates capture buffers. Two HS USB interfaces offer flexibility for a host connection, peripheral device, or maintenance port, while LCD support can provide a local diagnostic screen. The 208-pin package exposes enough connections for multiple instrument channels and control signals. Engineers should use the exact datasheet to map communications and general-purpose I/O, ensure that high-current outputs are isolated from the MCU, and include watchdog, brownout, and recovery mechanisms appropriate to unattended test equipment.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para LPC1857JBD208E — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | LPC4357JBD208E | LPC1853JBD208E | LPC1855JBD208E | LPC1857JBD208 | LPC1860JBD208E |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 208-LQFP (28 mm x 28 mm) | 208-LQFP - same | 208-LQFP - same | 208-LQFP - same | 208-LQFP - same | 208-LQFP - same |
| CPU Core | ARM Cortex-M3 | ARM Cortex-M4/M0 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
Diferenciadores clave
- Known Cortex-M3 implementation with full 1 MB flash (frente a LPC1853JBD208E)
- Established peripheral integration (frente a LPC4357JBD208E)
- High-speed CPU with integrated connectivity (frente a LPC1855JBD208E)
Notas de diseño
Treat the 208-pin LQFP land pattern as a fixed mechanical and electrical interface. Before schematic capture, compare every target alternative against the LPC1857 pin list from the manufacturer datasheet, especially Ethernet, USB, LCD, debug, clock, and power pins. Maintain the manufacturer's recommended power and ground distribution because this device exposes many high-current and high-speed connections. Place decoupling physically close to its associated supply pins and keep analog inputs away from Ethernet clocks, USB routing, and switching-node wiring.
Do not select a replacement solely from the 180 MHz frequency and 1 MB flash figures. The LPC1857 includes two HS USB interfaces, Ethernet, and LCD support, and the alternate LPC4300 candidate changes the CPU architecture. Compare the complete peripheral list, memory organization, clock tree, boot options, and electrical limits. For PCB reuse, confirm pin continuity and all power rails before approving a drop-in transition; a common package alone does not guarantee compatibility.
Route high-speed USB and Ethernet interfaces as controlled-impedance signals with short returns, continuous reference planes, and minimal stubs. Separate these interfaces from sensitive sensor inputs and keep clocks away from analog and display inputs. Because the exact LPC1857JBD208E pin list and board-layout guidance were not supplied in the verified excerpts, use the official NXP datasheet and reference documentation for exact routing, impedance, via, and bypass requirements.
Avoid assuming that the LPC1853JBD208E is interchangeable merely because it retains Cortex-M3 and the 208-LQFP package: its verified flash capacity is 512 kB versus 1 MB for the target. Likewise, LPC4357JBD208E changes the core to Cortex-M4/M0. Firmware binary size, driver changes, peripheral differences, and pin-level electrical equivalence must all be reviewed before approving either substitution.
Información de cumplimiento
The verified excerpts do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. No compliance status has been inferred from the manufacturer or distributor pages.
