NXP Semiconductors LPC4325JET100E

Overview

LPC4325JET100E from NXP Semiconductors is a dual-core ARM Cortex-M4F/M0 microcontroller designed for real-time embedded control with integrated USB 2.0 Host/Device, Ethernet MAC (RMII), 768 kB flash (384 kB per bank), 136 kB SRAM, and 4-channel 10-bit ADCs - deployed in industrial motor drives and power management systems.

For engineers reviewing the LPC4325JET100E datasheet, LPC4325JET100E pinout, LPC4325JET100E application, or LPC4325JET100E equivalent, key selection criteria include its TFBGA100 package, -40 °C to +105 °C temperature grade, absence of Ethernet PHY and LCD controller, and dedicated USB0-only interface without ULPI support.

Technical Context

The LPC4325JET100E implements a tightly coupled dual-core architecture: the Cortex-M4F core runs at up to 204 MHz with hardware FPU and MPU, while the Cortex-M0 co-processor operates at up to 204 MHz for peripheral offload and deterministic real-time tasks. Both cores share access to AHB peripherals via a multilayer matrix interconnect.

It integrates two independent 10-bit ADCs (ADC0/ADC1) with 4 input channels each, a quad-SPI Flash Interface (SPIFI) supporting execute-in-place, and an External Memory Controller (EMC) for NOR/SRAM expansion - but omits Ethernet PHY, LCD controller, and USB1/ULPI functionality per its variant specification.

Key Specifications

Pinout & Package

Package: TFBGA100 (SOT926-1), plastic thin fine-pitch ball grid array, 100 balls, 0.8 mm pitch, body size 9 mm × 9 mm × 0.7 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC4337JET100 and LPC4322JET100, the LPC4325JET100 provides optimal balance of flash safety (dual-bank), analog acquisition capability (4-channel ADC pair), and minimal peripheral overhead - ideal for certified industrial firmware updates and precision sensor fusion.

Availability

LPC4325JET100E is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, and PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LPC4325JET100E 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in ARM-based microcontrollers and edge processing.

The LPC43xx family was engineered for deterministic real-time control in safety-critical industrial systems - combining dual-core flexibility, robust peripheral sets, and long-term availability for factory automation and energy infrastructure.

FAQ

What is the maximum operating frequency of the LPC4325JET100E?

The LPC4325JET100E supports a maximum CPU frequency of 204 MHz for both its ARM Cortex-M4F and Cortex-M0 cores. This performance level is sustained across the full industrial temperature range (-40 °C to +105 °C) with appropriate power supply regulation and thermal design. The LPC4325JET100E achieves this using three internal PLLs - one for the CPU, one for USB, and one for audio - eliminating need for external high-frequency crystals.

Does the LPC4325JET100E include an integrated Ethernet PHY?

No, the LPC4325JET100E includes only the Ethernet MAC layer (10/100T with RMII/MII interfaces and IEEE 1588 timestamping) and requires an external PHY for physical layer connectivity. This design allows system-level optimization of EMI, isolation, and cable drive strength. The LPC4325JET100E does not integrate an Ethernet PHY, unlike some higher-variant parts such as the LPC4337JET100.

How many ADC channels does the LPC4325JET100E support?

The LPC4325JET100E integrates two independent 10-bit ADCs (ADC0 and ADC1), each with four dedicated input channels - totaling eight unique analog inputs. Channels are multiplexed such that ADC0_0 and ADC1_0 share the same physical pin, enabling synchronized sampling across both converters. The maximum conversion rate is 400 kSamples/s per ADC.

Is the LPC4325JET100E pin-compatible with other TFBGA100 variants in the LPC43xx family?

Yes, the LPC4325JET100E shares identical TFBGA100 pinout and ball assignment with other J-grade TFBGA100 variants including LPC4333JET100, LPC4327JET100, and LPC4323JET100. Pin functions are consistent across these parts per Table 3 in the datasheet, enabling hardware reuse across different flash/SRAM configurations - though peripheral availability (e.g., Ethernet MAC, USB1) varies by variant.

What debug interfaces are supported by the LPC4325JET100E?

The LPC4325JET100E supports JTAG and Serial Wire Debug (SWD) interfaces for full-chip debugging, plus Serial Wire Trace (SWO) for real-time instruction and data trace. It includes eight hardware breakpoints, four watchpoints, an Enhanced Trace Module (ETM), and an Enhanced Trace Buffer (ETB). These capabilities apply to both Cortex-M4F and Cortex-M0 cores, enabling synchronized multi-core debug sessions.