NXP Semiconductors LPC1823JBD144E

Overview

LPC1823JBD144E from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller operating at up to 180 MHz, featuring 512 kB flash (256 kB per bank), 104 kB on-chip SRAM, no Ethernet or LCD controller, and a motor control PWM. It targets industrial embedded systems requiring deterministic real-time control with external memory expansion via EMC.

For engineers reviewing the LPC1823JBD144E datasheet, LPC1823JBD144E pinout, LPC1823JBD144E application, or LPC1823JBD144E equivalent, key selection criteria include its LQFP144 package, -40 °C to +105 °C temperature grade, USB0 host/device capability, dual 10-bit ADCs (8 channels), and absence of Ethernet/LCD-making it suitable for cost-optimized, non-networked motor-control and sensor-aggregation applications.

Technical Context

The LPC1823JBD144E implements the ARM Cortex-M3 r2p1 core with Harvard architecture, 3-stage pipeline, and integrated MPU/NVIC for deterministic interrupt handling. Its clock system includes three PLLs-one dedicated to USB0, enabling high-speed USB 2.0 operation without external high-frequency crystals.

Digital peripherals are routed via the AHB multilayer matrix and GIMA crossbar, supporting concurrent access to SCTimer/PWM, SSP, I2C, UARTs, and DMA-capable GPIO. The External Memory Controller (EMC) supports SRAM, NOR flash, and SDRAM, while the motor control PWM provides three-phase timing with dead-time insertion.

Key Specifications

Pinout & Package

Package: LQFP144 (SOT486-1), plastic low-profile quad flat package with 144 leads, body size 20 × 20 × 1.4 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC1823JBD144E, LPC1833JBD144 adds Ethernet/LCD but increases complexity and cost, while LPC1822JBD144 removes motor PWM-making LPC1823JBD144E the optimal balance of real-time motor control capability, memory, and industrial temperature range in LQFP144.

Availability

LPC1823JBD144E is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, RFID reader terminals, and white goods appliance control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LPC1823JBD144E 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, with deep expertise in ARM-based microcontrollers and edge processing.

The LPC18xx family was designed for high-performance embedded control in resource-constrained industrial environments-prioritizing real-time determinism, peripheral integration, and robustness over consumer-grade features like graphics acceleration.

FAQ

What is the maximum operating frequency of the LPC1823JBD144E?

The LPC1823JBD144E operates at a maximum CPU frequency of 180 MHz using the ARM Cortex-M3 core. This speed is achieved via internal PLLs that allow full performance without requiring an external high-frequency crystal oscillator-critical for reducing BOM count and improving EMI resilience in industrial settings. The LPC1823JBD144E sustains this rate across its full -40 °C to +105 °C operating range.

Does the LPC1823JBD144E support Ethernet or LCD interfaces?

No, the LPC1823JBD144E does not include Ethernet MAC or LCD controller hardware. These peripherals are present in higher-tier variants like LPC183x and LPC185x but intentionally omitted in the LPC1823JBD144E to reduce cost and power consumption. The LPC1823JBD144E retains USB0, EMC, dual ADCs, and motor control PWM-making it ideal for standalone motor or sensor systems without networked displays.

How much SRAM and flash memory does the LPC1823JBD144E have?

The LPC1823JBD144E integrates 104 kB of on-chip SRAM and 512 kB of flash memory split into two 256 kB banks. This dual-bank flash architecture enables seamless firmware updates-executing from Bank A while programming Bank B-without halting real-time operations. The 104 kB SRAM is distributed across multiple AHB-accessible blocks for concurrent DMA and CPU access.

What USB capabilities does the LPC1823JBD144E provide?

The LPC1823JBD144E features one High-speed USB 2.0 interface (USB0) with integrated PHY supporting Host, Device, and OTG modes-including DMA acceleration and USB electrical test software in ROM. It lacks USB1 (which requires external PHY), making USB0 the sole high-speed interface. This configuration supports direct PC connectivity, peripheral emulation, or host control of USB devices without external transceivers.

Is the LPC1823JBD144E pin-compatible with other LPC18xx LQFP144 variants?

Yes, the LPC1823JBD144E shares the same LQFP144 pinout (SOT486-1) and footprint with other LPC18xx family members in that package, including LPC1833JBD144 and LPC1822JBD144. However, peripheral availability differs-e.g., Ethernet pins are no-connect on LPC1823JBD144E-so software and schematic validation is required before substitution. Pin compatibility enables migration within the same package family.