NXP Semiconductors LPC1822JBD144E

Overview

LPC1822JBD144E from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller designed for industrial embedded control applications. It operates at up to 180 MHz, integrates 512 kB flash (single-bank), 104 kB SRAM, and supports USB 2.0 Host/Device operation via USB1 with ULPI interface - no Ethernet or LCD controller. It features an SCTimer/PWM subsystem, dual 10-bit ADCs (8 channels total), and motor control PWM.

For engineers reviewing the LPC1822JBD144E datasheet, LPC1822JBD144E pinout, LPC1822JBD144E application, or LPC1822JBD144E equivalent, key selection considerations include its LQFP144 package, -40 °C to +105 °C temperature grade, absence of Ethernet/LCD, and dedicated USB1 ULPI support for high-speed peripheral connectivity.

Technical Context

The LPC1822JBD144E implements the 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 dual SSP controllers with DMA.

Its clock system includes three PLLs: one for CPU (up to 180 MHz), one for USB1 (via ULPI), and one configurable as audio PLL. The device lacks Ethernet MAC and LCD controller hardware, confirmed by Table 2 in the datasheet, and omits QEI and second USB PHY (USB0) functionality.

Key Specifications

Pinout & Package

Package: LQFP144 (20 × 20 × 1.4 mm, SOT486-1). 144-pin quad flat package with exposed thermal pad; compatible with standard reflow profiles and manual inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC1822JBD144E, LPC1823JBD144 adds dual-bank flash for safe firmware updates, while LPC1833JBD144 introduces Ethernet and USB0 PHY - increasing BOM cost and PCB complexity but enabling networked operation.

Availability

LPC1822JBD144E is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, RFID reader systems, and white goods control units requiring stable component supply across extended temperature ranges.

Supply support for LPC1822JBD144E 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 applications.

The LPC18xx family was engineered for high-performance, mixed-signal industrial control - emphasizing real-time determinism, peripheral flexibility (SCT/GIMA), and robust operation from -40 °C to +105 °C.

FAQ

What is the maximum operating frequency of the LPC1822JBD144E?

The LPC1822JBD144E operates at a maximum CPU frequency of 180 MHz, achieved via its on-chip PLL system. This frequency is sustained across the full -40 °C to +105 °C industrial temperature range, with voltage regulation maintained between 2.4 V and 3.6 V. The ARM Cortex-M3 core's 3-stage pipeline and Harvard bus architecture ensure consistent instruction throughput at this rate.

Does the LPC1822JBD144E include an Ethernet MAC?

No, the LPC1822JBD144E does not include an Ethernet MAC. Per Table 2 in the official NXP datasheet (Rev. 5.3), Ethernet is explicitly marked "no" for this variant. This distinguishes it from higher-tier LPC18xx parts like LPC1833JBD144. Designers requiring Ethernet must select an alternative part or add an external MAC+PHY solution.

What USB capabilities does the LPC1822JBD144E support?

The LPC1822JBD144E supports USB 2.0 Host/Device functionality exclusively through USB1, implemented via a ULPI interface requiring an external high-speed PHY. It lacks the on-chip USB0 PHY and OTG capability found in other LPC18xx variants. USB0-related pins (e.g., USB0_PPWR, USB0_INDx) are repurposed for USB1 control or general I/O.

How much SRAM and flash memory does the LPC1822JBD144E have?

The LPC1822JBD144E integrates 104 kB of on-chip SRAM and 512 kB of flash memory configured as a single bank. Unlike dual-bank variants (e.g., LPC1823JBD144), this configuration does not support atomic firmware updates. The SRAM is distributed across multiple AHB-accessible blocks, enabling concurrent DMA transfers and CPU access without contention.

Is the LPC1822JBD144E pin-compatible with other LQFP144 LPC18xx microcontrollers?

Yes, the LPC1822JBD144E shares the same LQFP144 (SOT486-1) package and pinout with other JBD144 variants including LPC1823JBD144 and LPC1833JBD144. However, unused pins (e.g., Ethernet signals) are reserved or repurposed - functional compatibility requires verifying peripheral enablement and register mapping in software, especially for USB and memory controller configurations.