NXP Semiconductors LPC4078FBD100E

Overview

LPC4078FBD100E from NXP Semiconductors is a high-performance ARM Cortex-M4 microcontroller operating up to 120 MHz with integrated FPU, 512 kB Flash, 96 kB SRAM, and dual CAN 2.0B interfaces. It supports Ethernet MAC, USB 2.0 FS, and real-time clock with battery backup for industrial control and motor drive applications.

For engineers reviewing the LPC4078FBD100E datasheet, LPC4078FBD100E pinout, LPC4078FBD100E application, or LPC4078FBD100E equivalent, key selection criteria include dual-CAN timing synchronization, 12-bit ADC resolution with 8 channels, 10-bit DAC, and multilayer bus matrix support for concurrent peripheral access.

Technical Context

The LPC4078FBD100E implements an ARM Cortex-M4 core with hardware floating-point unit (FPU) and Memory Protection Unit (MPU), enabling deterministic real-time execution in safety-critical embedded systems. It integrates a multilayer AHB bus matrix that decouples CPU, DMA, and peripheral access paths to sustain full bandwidth across concurrent operations.

Clock generation includes a 12 MHz ±1% internal RC oscillator, system PLL supporting up to 120 MHz CPU frequency, and separate USB PLL. Power management features BOD, POR, and multiple low-power modes managed by the PMU under single Vdd supply operation.

Key Specifications

Pinout & Package

LPC4078FBD100E is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad for enhanced thermal dissipation in industrial environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC4078FBD100E, LPC4357FET100 offers asymmetric core flexibility but lacks Ethernet and dual CAN; STM32F407VGT6 provides greater memory headroom but requires external PHY and sacrifices CAN redundancy-making LPC4078FBD100E optimal for deterministic dual-network industrial gateways.

Availability

LPC4078FBD100E is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, and automotive diagnostic tools requiring stable component supply and long-term lifecycle support.

Supply support for LPC4078FBD100E 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 company specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The LPC4000 series targets high-integration industrial control applications requiring real-time performance, mixed-signal capability, and robust communication interfaces including Ethernet and dual CAN.

FAQ

What is the maximum operating frequency of the LPC4078FBD100E?

The LPC4078FBD100E operates at a maximum CPU frequency of 120 MHz, achieved via its on-chip system PLL. This frequency is fully supported across all voltage and temperature ranges specified in the official NXP datasheet, enabling deterministic real-time execution for motor control and protocol stack processing. The LPC4078FBD100E maintains this speed with full peripheral functionality enabled, including Ethernet MAC and dual CAN controllers.

Does the LPC4078FBD100E include a hardware floating-point unit?

Yes, the LPC4078FBD100E integrates a single-precision IEEE 754-compliant Floating Point Unit (FPU) as part of its ARM Cortex-M4 core. This hardware accelerator significantly reduces computation time for trigonometric, exponential, and filtering operations used in motor control and sensor fusion. The LPC4078FBD100E's FPU eliminates the need for software-emulated floating-point math, improving both code efficiency and real-time predictability.

How many CAN interfaces does the LPC4078FBD100E support, and are they fully independent?

The LPC4078FBD100E supports two fully independent CAN 2.0B controllers, each with dedicated message RAM, acceptance filters, and transmit/receive FIFOs. They operate without shared resources or CPU arbitration overhead, allowing simultaneous transmission and reception on separate buses. This independence makes the LPC4078FBD100E suitable for applications requiring redundant communication paths or synchronized multi-node control, such as industrial PLC backplanes.

What type of package is used for the LPC4078FBD100E, and what are its thermal characteristics?

The LPC4078FBD100E uses a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with an exposed thermal pad. Its thermal resistance θ_JA is 39°C/W under standard JEDEC conditions, enabling reliable operation up to 85°C ambient when properly heatsinked. The LPC4078FBD100E's package supports reflow soldering per IPC/JEDEC J-STD-020 and is compatible with automated PCB assembly processes.

Does the LPC4078FBD100E include on-chip ROM-based drivers, and what functions do they cover?

Yes, the LPC4078FBD100E includes factory-programmed ROM containing certified drivers for USB device stack, In-Application Programming (IAP), and flash erase/write operations. These ROM routines reduce firmware size, improve security through validated code, and accelerate development of field-upgradable applications. The LPC4078FBD100E's ROM drivers are accessible via defined API vectors and require no additional licensing or royalties.