NXP Semiconductors LPC4322JET100E

Overview

LPC4322JET100E from NXP Semiconductors is a dual-core ARM Cortex-M4F/M0 microcontroller targeting industrial control and embedded connectivity applications. It operates at up to 204 MHz, integrates 512 kB flash (bank A only), 104 kB SRAM, two 10-bit ADCs (400 kSamples/s), one 10-bit DAC, and supports USB 2.0 Host/Device via internal full-speed PHY - all in a 100-ball TFBGA package with -40 °C to +105 °C temperature range.

For engineers reviewing the LPC4322JET100E datasheet, LPC4322JET100E pinout, LPC4322JET100E application, or LPC4322JET100E equivalent, key selection criteria include its dual-core real-time partitioning capability, absence of Ethernet and LCD controllers, limited GPIO count (49 pins), and TFBGA100 footprint constraints for space-constrained designs.

Technical Context

The LPC4322JET100E implements a tightly coupled dual-core architecture: the Cortex-M4F core handles high-performance signal processing and real-time tasks with hardware FPU and MPU, while the Cortex-M0 co-processor offloads peripheral management and deterministic I/O control. Both cores operate up to 204 MHz and share access to on-chip memory via an AHB multilayer matrix.

Its peripheral set excludes Ethernet MAC, LCD controller, and motor control PWM - confirmed by Table 2 - but retains dual high-speed USB interfaces (USB0 with on-chip full-speed PHY, USB1 with ULPI support), SPIFI, EMC, SCTimer/PWM, GIMA, and SGPIO. The device uses a dedicated 12 MHz IRC oscillator and three PLLs for flexible clock generation across CPU, USB, and audio domains.

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 microcontroller applications.

Compared with LPC4322JET100E, LPC4333JET100 offers dual-bank flash for safer firmware updates, while LPC4323JET100 reduces feature count to lower cost - both retain identical TFBGA100 packaging and thermal rating for drop-in layout reuse.

Availability

LPC4322JET100E is available at Aetrix Electronics and suitable for industrial motor control, embedded audio gateways, smart energy metering, and RFID reader controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LPC4322JET100E 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 markets, with deep expertise in ARM-based microcontrollers and edge processing.

The LPC43xx product line was designed for high-integration embedded systems requiring real-time determinism, dual-core flexibility, and rich peripheral sets - particularly where USB, audio, and analog signal processing converge.

FAQ

What is the maximum operating frequency of the LPC4322JET100E?

The LPC4322JET100E supports CPU operation up to 204 MHz on both the Cortex-M4F and Cortex-M0 cores. This frequency is achieved using the on-chip PLLs driven by the 12 MHz internal RC oscillator or an external crystal (1–25 MHz). The device maintains this performance across its full industrial temperature range (-40 °C to +105 °C), as validated in the official NXP datasheet Rev. 5.4.

Does the LPC4322JET100E include Ethernet or LCD controller peripherals?

No, the LPC4322JET100E does not include Ethernet MAC or LCD controller functionality. As confirmed in Table 2 of the NXP datasheet, these peripherals are explicitly omitted in the LPC432x family. The LPC4322JET100E retains USB, SPIFI, EMC, SCTimer, and analog peripherals but targets applications where network display interfaces are unnecessary.

How many GPIO pins are available on the LPC4322JET100E in TFBGA100 package?

The LPC4322JET100E provides 49 GPIO pins in the TFBGA100 package, as specified in Table 2 of the NXP datasheet. These pins are distributed across ports P0–P1 and PA–PF, with multiplexing controlled via the System Configuration Unit (SCU). This count is lower than LQFP144 variants (83 pins) due to ball count limitations in the 100-ball footprint.

What USB capabilities does the LPC4322JET100E support?

The LPC4322JET100E supports two USB 2.0 interfaces: USB0 operates as Host/Device/OTG with an integrated full-speed PHY, while USB1 supports Host/Device mode via ULPI interface to an external high-speed PHY. Neither interface includes an on-chip high-speed PHY - USB0 is full-speed only, and USB1 requires external PHY for high-speed operation, as documented in Section 2 features and Table 2.

Is the LPC4322JET100E pin-compatible with other LPC43xx TFBGA100 variants?

Yes, the LPC4322JET100E shares identical pinout and package (TFBGA100, SOT926-1) with other JET100-suffixed LPC43xx parts including LPC4333JET100, LPC4323JET100, and LPC4313JET100. Pin assignments, power domains, and reset behavior are consistent across this package variant, enabling hardware reuse when migrating between flash/SRAM configurations.