NXP Semiconductors LPC1815JBD144E

Overview

LPC1815JBD144E from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller operating at up to 180 MHz, featuring 768 kB flash (384 kB per bank), 136 kB SRAM, and no Ethernet or LCD controller. It integrates dual 10-bit ADCs (8 channels total), one 10-bit DAC, motor control PWM, QEI, and supports industrial embedded control in temperature range −40 °C to +105 °C.

For engineers reviewing the LPC1815JBD144E datasheet, LPC1815JBD144E pinout, LPC1815JBD144E application, or LPC1815JBD144E equivalent, key selection criteria include its LQFP144 package with 83 GPIOs, absence of Ethernet/USB0/USB1/LCD, presence of motor control PWM and QEI, and support for external memory via EMC - critical for real-time motion control and metering designs.

Technical Context

The LPC1815JBD144E implements an ARM Cortex-M3 r2p1 core with Harvard architecture, 3-stage pipeline, and integrated MPU/NVIC. It uses separate AHB buses for peripherals including SCTimer/PWM, GIMA crossbar, and DMA-capable SSP/I2C/UART interfaces.

Its clock system includes three PLLs: one for CPU up to 180 MHz, one for audio, and one reserved; it supports crystal (1–25 MHz), 12 MHz IRC (±3 %), and RTC oscillator. Power management includes four low-power modes and brownout detection with four thresholds.

Key Specifications

Pinout & Package

Package: LQFP144 (20 × 20 × 1.4 mm, SOT486-1), 144-pin plastic low-profile quad flat package with exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC1815JBD144E, LPC1823JBD144 reduces memory and removes motor control features for cost-sensitive non-motion applications, while LPC1833JBD144 adds Ethernet and USB connectivity at the expense of increased board area and power - making LPC1815JBD144E optimal for standalone, high-precision motor or metering systems.

Availability

LPC1815JBD144E is available at Aetrix Electronics and suitable for industrial motor control, e-metering, RFID reader systems, and white goods requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LPC1815JBD144E 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 LPC18xx family was designed for high-performance embedded control applications demanding real-time responsiveness, rich analog/digital peripheral integration, and industrial-grade reliability - with LPC1815JBD144E targeting cost-optimized motor and metering systems.

FAQ

What is the maximum operating frequency of the LPC1815JBD144E?

The LPC1815JBD144E operates at a maximum CPU frequency of 180 MHz using its ARM Cortex-M3 core. This performance level is achieved via internal PLLs that multiply the input clock source - such as a 1–25 MHz crystal or the 12 MHz internal RC oscillator - without requiring an external high-frequency crystal. The LPC1815JBD144E sustains this speed across its full industrial temperature range of −40 °C to +105 °C.

Does the LPC1815JBD144E include Ethernet or USB interfaces?

No, the LPC1815JBD144E does not include Ethernet MAC or USB controllers. Unlike higher variants in the LPC18xx family, this specific part omits USB0, USB1, and Ethernet peripherals - as confirmed in Table 2 of the official datasheet. Its serial connectivity relies on four 550 UARTs (one with IrDA), two SSPs, two I2C interfaces, and two I2S ports. The LPC1815JBD144E is intended for applications where those high-speed interfaces are unnecessary.

How much flash and SRAM memory does the LPC1815JBD144E have?

The LPC1815JBD144E integrates 768 kB of on-chip flash memory (split into two 384 kB banks) and 136 kB of SRAM. It also includes 16 kB of EEPROM for non-volatile data storage and 64 kB of ROM containing boot code and USB/flash drivers - though USB drivers remain unused due to the absence of USB hardware. This memory configuration supports robust firmware partitioning, secure OTA updates, and real-time data buffering in industrial applications.

What analog peripherals are available on the LPC1815JBD144E?

The LPC1815JBD144E includes two 10-bit ADCs (ADC0 and ADC1) with a combined total of eight analog input channels, each shared between both converters, and one 10-bit DAC. Both ADCs support up to 400 kSamples/s with DMA acceleration, and the DAC operates at the same rate. These peripherals are directly accessible via dedicated pins and multiplexed GPIOs, enabling simultaneous voltage/current sensing and analog output generation - essential for motor current control and metering reference calibration in the LPC1815JBD144E.

Is the LPC1815JBD144E pin-compatible with other LPC18xx LQFP144 variants?

The LPC1815JBD144E shares the same LQFP144 package (SOT486-1) and pinout with other LPC18xx parts in that footprint, including LPC1833JBD144, LPC1837JBD144, and LPC1823JBD144. However, functional pin assignments differ across variants - for example, Ethernet and USB signals present on LPC1833JBD144 are No Connect (NC) on the LPC1815JBD144E. PCB layout reuse is possible only if unused pins are left unconnected and firmware accounts for missing peripherals.