NXP Semiconductors LPC4353JET256,551

Overview

LPC4353JET256 from NXP Semiconductors is a dual-core ARM Cortex-M4F/M0 microcontroller with 512 kB flash (256 kB per bank), 136 kB SRAM, integrated Ethernet MAC, dual high-speed USB 2.0 interfaces (one with on-chip HS PHY, one with ULPI), LCD controller, and quad SPI Flash Interface (SPIFI) - deployed in industrial motor control, e-metering, and embedded audio systems.

For engineers reviewing the LPC4353JET256 datasheet, LPC4353JET256 pinout, LPC4353JET256 application, or LPC4353JET256 equivalent, key selection considerations include dual-core real-time partitioning, 204 MHz M4F + 204 MHz M0 co-processor performance, LBGA256 package compatibility, IEEE 1588 time stamping support, and hardware floating-point acceleration for DSP workloads.

Technical Context

The LPC4353JET256 integrates two independent 32-bit ARM cores: a Cortex-M4F with hardware FPU, MPU, NVIC, and ETM/ETB trace, operating up to 204 MHz; and a Cortex-M0 coprocessor (r0p0) running at up to 204 MHz, optimized for peripheral offload and deterministic control tasks. Both cores share memory-mapped peripherals via an AHB multilayer matrix.

Its system architecture includes dual-bank flash for secure firmware updates, 16 kB EEPROM, 64 kB ROM with boot code and USB stack, GIMA for flexible event routing, SCTimer/PWM for advanced waveform generation, and SGPIO for configurable logic sequencing - all accessible over dedicated AHB buses with DMA support.

Key Specifications

Pinout & Package

Package: LBGA256 (Plastic low-profile ball grid array; 256 balls; body 17 × 17 × 1 mm; SOT740-2).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC4357JET256, LPC4353JET256 reduces flash by 50 % and removes LCD support while retaining full Ethernet, dual USB, and dual ADC capability; versus LPC4333JET256, it adds Ethernet MAC and USB0 HS PHY - making it the optimal balance for connected industrial edge nodes requiring robust wired connectivity without display.

Availability

LPC4353JET256 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, and embedded audio processing requiring stable component supply across long-lifecycle production programs.

Supply support for LPC4353JET256 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 LPC4300 series was designed specifically for high-performance, real-time industrial edge applications demanding dual-core determinism, rich connectivity (Ethernet/USB/CAN), and hardware-accelerated signal processing - targeting motor drives, energy infrastructure, and protocol gateways.

FAQ

What is the maximum operating frequency of the LPC4353JET256's Cortex-M4F core?

The LPC4353JET256's ARM Cortex-M4F core operates at up to 204 MHz, delivering high computational throughput for real-time control and signal processing. This frequency is supported by the on-chip PLLs and validated across the full industrial temperature range (−40 °C to +105 °C). The LPC4353JET256 achieves this performance while maintaining low power consumption through its multi-power-domain architecture and dynamic clock gating.

Does the LPC4353JET256 support IEEE 1588 Precision Time Protocol (PTP)?

Yes, the LPC4353JET256 includes hardware timestamping support for IEEE 1588-2008 v2 within its Ethernet MAC, enabling sub-microsecond time synchronization for industrial automation and smart grid applications. This feature is implemented in the 10/100T Ethernet controller and requires no software overhead for timestamp insertion or extraction. The LPC4353JET256 uses this capability to meet strict timing requirements in e-metering and distributed control systems.

How does the dual-core architecture of the LPC4353JET256 improve real-time performance?

The LPC4353JET256 uses asymmetric dual-core partitioning: the Cortex-M4F handles computationally intensive tasks (e.g., FOC, FFT, encryption), while the Cortex-M0 manages time-critical peripherals (PWM, CAN, USB endpoints) with deterministic latency. This separation prevents interrupt jitter and ensures consistent response times - critical for motor control and industrial networking. The LPC4353JET256 leverages shared memory and event router (GIMA) for efficient inter-core communication without bus contention.

What package type and pin count does the LPC4353JET256 use?

The LPC4353JET256 is housed in an LBGA256 package (SOT740-2): a 17 mm × 17 mm × 1 mm low-profile ball grid array with 256 solder balls. This package supports high I/O density and thermal performance for industrial applications. Pin assignments are defined in the official NXP datasheet, with multiplexed functions including Ethernet, USB, SPIFI, and GPIO - all accessible via the System Configuration Unit (SCU) register set. The LPC4353JET256 shares this package with other members of the LPC435x family for design reuse.

Can the LPC4353JET256 execute code directly from external quad-SPI flash?

Yes, the LPC4353JET256 features a Quad SPI Flash Interface (SPIFI) that supports execute-in-place (XIP), allowing direct instruction fetch from external SPI flash without copying to internal RAM. This reduces boot time and conserves SRAM for data buffers and real-time tasks. The SPIFI achieves up to 52 MB/s throughput and is fully integrated into the AHB bus matrix. The LPC4353JET256 uses this capability in audio and metering applications where firmware size exceeds on-chip flash capacity.