NXP Semiconductors LPC4078FBD80,551

Overview

LPC4078FBD80,551 from NXP Semiconductors is a 32-bit ARM Cortex-M4 microcontroller designed for embedded control applications requiring high integration, low power, and real-time responsiveness. It operates at up to 120 MHz, integrates 512 kB flash, 96 kB SRAM, and 4032 B EEPROM, and supports USB Device/Host/OTG, Ethernet, dual CAN, five UARTs, and a 12-bit ADC - deployed in industrial motor drives and networked appliance controllers.

For engineers reviewing the LPC4078FBD80,551 datasheet, LPC4078FBD80,551 pinout, LPC4078FBD80,551 application, or LPC4078FBD80,551 equivalent, key selection criteria include its LQFP80 package with 80 pins, absence of LCD controller, presence of FPU (hardware floating-point unit), dual CAN channels, and compatibility with LPC178x/7x peripheral register mapping for migration paths.

Technical Context

The LPC4078FBD80,551 implements an ARM Cortex-M4 core with Harvard architecture, 3-stage pipeline, hardware FPU, Memory Protection Unit (MPU), and Nested Vectored Interrupt Controller (NVIC). Its multilayer AHB matrix enables concurrent CPU and DMA access without arbitration delay, while split APB buses reduce stalls during peripheral access.

Peripheral subsystems include a General Purpose DMA controller supporting SSP, UART, ADC, DAC, and timers; a dedicated CRC engine usable with DMA; and a Real-Time Clock with battery-backed registers and event recorder in its own power domain. The device lacks LCD controller and EMC interface in this LQFP80 variant, per ordering table specifications.

Key Specifications

Pinout & Package

LQFP80 package: plastic low-profile quad flat package with 80 leads, body size 12 × 12 × 1.4 mm (SOT315-1). All I/O pins are 5 V tolerant except crystal, power, and reference voltage pins; ADC inputs lose 5 V tolerance when enabled.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with LPC1788FBD208,551 and LPC4357JBD208,551, the LPC4078FBD80,551 delivers hardware FPU acceleration and dual CAN in a compact LQFP80 package - making it optimal for space-constrained industrial and automotive control where floating-point computation and fieldbus interoperability are essential.

Availability

LPC4078FBD80,551 is available at Aetrix Electronics and suitable for industrial motor drives, automotive telematics, and medical diagnostic instruments requiring stable component supply and long-term lifecycle support.

Supply support for LPC4078FBD80,551 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The LPC4000 series targets high-integration embedded control with ARM Cortex-M4 performance, rich analog/motor peripherals, and industrial-grade reliability - designed for real-time deterministic applications in harsh environments.

FAQ

Does the LPC4078FBD80,551 include a hardware floating-point unit?

Yes, the LPC4078FBD80,551 integrates a hardware floating-point unit (FPU) compliant with IEEE-754 single-precision format. This FPU accelerates trigonometric, exponential, and matrix operations essential for motor control algorithms and sensor fusion - confirmed in the official NXP LPC408x/7x datasheet Rev. 3 section 2.1. The LPC4078FBD80,551 leverages this FPU to execute complex real-time computations without software emulation overhead.

What is the maximum operating frequency of the LPC4078FBD80,551?

The LPC4078FBD80,551 operates at a maximum CPU frequency of 120 MHz, achieved via its on-chip PLL driven by either the main oscillator (1–25 MHz crystal) or the internal 12 MHz RC oscillator. This frequency is sustained across the full industrial temperature range (−40 °C to +85 °C) and supply voltage (2.4–3.6 V), as specified in Table 2 of the NXP datasheet. The LPC4078FBD80,551 maintains timing compliance under these conditions without derating.

Does the LPC4078FBD80,551 support Ethernet MAC functionality?

No, the LPC4078FBD80,551 does not include an Ethernet MAC. While higher-pin-count variants (e.g., LQFP208/LQFP144) in the LPC4078 family retain Ethernet capability, the LQFP80 package variant explicitly omits the Ethernet MAC block, as confirmed in Table 2 of the NXP datasheet under "Ethernet" column entry "yes" for larger packages and blank (implying "no") for LPC4078FBD80. The LPC4078FBD80,551 retains USB, CAN, and UART interfaces for alternative connectivity.

How many CAN controllers are integrated into the LPC4078FBD80,551?

The LPC4078FBD80,551 integrates two independent CAN 2.0B controllers, supporting bit rates up to 1 Mbit/s and message filtering with acceptance masks. Both controllers are fully functional in the LQFP80 package, with CAN1 signals routed to P0[0]/P0[1] and CAN2 to P0[4]/P0[5], as documented in Table 3 of the NXP datasheet. This dual-CAN capability enables robust fieldbus communication in industrial automation and automotive diagnostics - a key differentiator of the LPC4078FBD80,551.

Is the LCD controller present in the LPC4078FBD80,551?

No, the LCD controller is not present in the LPC4078FBD80,551. Table 2 of the NXP datasheet explicitly lists "LCD" as "no" for all LQFP80 and LQFP100 variants of the LPC4078, confirming its omission in this package. The LCD controller is only available in LQFP144, LQFP208, and TFBGA variants. The LPC4078FBD80,551 instead emphasizes compact control with dual CAN, USB OTG, and motor-control PWM - making it suitable for non-display applications.