NXP Semiconductors LPC4325JBD144E

Overview

LPC4325JBD144E from NXP Semiconductors is a dual-core ARM Cortex-M4F/M0 microcontroller in LQFP144 package, operating up to 204 MHz with 768 kB flash (384 kB per bank), 136 kB SRAM, and integrated USB 2.0 Host/Device interface - used in industrial motor control systems requiring real-time processing and peripheral offload.

For engineers reviewing the LPC4325JBD144E datasheet, LPC4325JBD144E pinout, LPC4325JBD144E application, or LPC4325JBD144E equivalent, key selection criteria include dual-core partitioning capability, absence of Ethernet/LCD peripherals, USB-only connectivity, and 83 GPIO count in 144-pin LQFP.

Technical Context

The LPC4325JBD144E implements a tightly coupled dual-core architecture: the Cortex-M4F handles real-time signal processing and floating-point computation, while the Cortex-M0 co-processor manages peripheral control and system housekeeping at up to 204 MHz. Both cores share access to AHB bus matrix and memory subsystems but operate independently with separate NVICs and debug interfaces.

It integrates a Quad SPI Flash Interface (SPIFI) supporting execute-in-place at up to 52 MB/s, two 10-bit ADCs (400 kSamples/s, 8 channels total), one 10-bit DAC, and a State Configurable Timer (SCTimer/PWM) for flexible waveform generation - all accessible via GIMA crossbar routing without CPU intervention.

Key Specifications

Pinout & Package

Package: Plastic low-profile quad flat package, 144 leads, body size 20 mm × 20 mm × 1.4 mm (SOT486-1), exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC4333JBD144 and LPC4322JBD144, the LPC4325JBD144E provides optimal balance of flash capacity (768 kB), full 8-channel ADC support, and motor control PWM - making it the preferred choice for real-time embedded control with firmware update resilience.

Availability

LPC4325JBD144E is available at Aetrix Electronics and suitable for industrial motor control, embedded audio gateways, smart energy metering, and RFID reader designs requiring stable component supply and long-term manufacturing continuity.

Supply support for LPC4325JBD144E 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 over 50 years of embedded systems expertise.

The LPC43xx product line was designed for high-performance, dual-core real-time control in resource-constrained industrial environments - emphasizing peripheral flexibility, safety-critical firmware update capability, and mixed-signal integration.

FAQ

What is the maximum operating frequency of the LPC4325JBD144E?

The LPC4325JBD144E supports a maximum CPU frequency of 204 MHz for both the ARM Cortex-M4F and Cortex-M0 cores. This is achieved using internal PLLs fed from the 1–25 MHz crystal oscillator or the 12 MHz internal RC oscillator, with voltage regulation ensuring stable operation across the full -40 °C to +105 °C industrial temperature range specified for the LPC4325JBD144E.

Does the LPC4325JBD144E include an Ethernet MAC?

No, the LPC4325JBD144E does not include an Ethernet MAC. Per Table 2 in the datasheet, Ethernet is explicitly marked "no" for this part number. The LPC4325JBD144E retains USB 2.0 Host/Device/OTG, SPIFI, dual ADCs, DAC, and motor control PWM - but omits Ethernet, LCD, and second USB controller found in higher-tier variants like LPC4357.

How many ADC channels does the LPC4325JBD144E support?

The LPC4325JBD144E integrates two independent 10-bit ADCs (ADC0 and ADC1), each supporting up to eight input channels. Inputs are shared between the two ADCs (e.g., ADC0_0 and ADC1_0 connect to the same pin), resulting in eight distinct analog input channels total - confirmed in Table 2 and Section 6.2 of the LPC4325JBD144E datasheet.

What is the purpose of the dual-bank flash architecture in the LPC4325JBD144E?

The dual-bank flash (384 kB per bank) in the LPC4325JBD144E enables safe over-the-air (OTA) firmware updates. While one bank executes active code, the other can be erased and reprogrammed - preventing system failure during update. This architecture is essential for industrial deployments where downtime must be avoided, and is directly supported by the ROM bootloader in the LPC4325JBD144E.

Is the LPC4325JBD144E pin-compatible with other LPC43xx LQFP144 variants?

Yes, the LPC4325JBD144E shares identical pinout and package (LQFP144, SOT486-1) with other LPC43xx devices in the same package, including LPC4333JBD144 and LPC4322JBD144. Pin functions are consistent across the family per Table 3 of the datasheet, allowing hardware reuse when migrating between variants - though peripheral enablement (e.g., Ethernet, LCD) depends on silicon configuration.