NXP Semiconductors LPC4353FET256,551

Overview

LPC4353FET256 from NXP Semiconductors is a dual-core ARM Cortex-M4F/M0 microcontroller in LBGA256 package, operating up to 204 MHz with 512 kB flash (256 kB per bank), 136 kB SRAM, 16 kB EEPROM, dual high-speed USB (Host/Device/OTG + Host/Device), 10/100T Ethernet MAC with IEEE 1588 support, and LCD controller - deployed in industrial motor control and embedded audio systems.

For engineers reviewing the LPC4353FET256 datasheet, LPC4353FET256 pinout, LPC4353FET256 application, or LPC4353FET256 equivalent, key selection criteria include dual-core real-time partitioning, EMC interface for SDRAM/NOR, SPIFI for XIP, SCTimer/PWM for deterministic timing, and temperature grade (–40 °C to +85 °C).

Technical Context

The LPC4353FET256 integrates an ARM Cortex-M4F core with hardware FPU and MPU, paired with a fully independent ARM Cortex-M0 coprocessor running at up to 204 MHz - enabling asymmetric multiprocessing where the M0 handles peripheral offload (e.g., USB protocol stack, GPIO event routing) while the M4F executes real-time control algorithms. Both cores share access to AHB peripherals but maintain separate local SRAM blocks (32 kB for M0, 40 kB for M4F) and dedicated interrupt controllers (NVIC).

Its clock system includes three PLLs: one for CPU/M4F, one for USB0 (480 MHz), and one configurable as audio PLL; the crystal oscillator supports 1–25 MHz input, and the internal 12 MHz RC oscillator is trimmed to ±3 % accuracy. The device implements GIMA for flexible cross-triggering between timers, ADCs, and SCTimer, enabling tightly synchronized analog-digital control loops.

Key Specifications

Pinout & Package

Package: Plastic low-profile ball grid array (LBGA256), 256-ball layout, body size 17 mm × 17 mm × 1 mm (SOT740-2), lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC4357FET256, the LPC4353FET256 trades 512 kB flash and LCD support for identical dual-core performance, Ethernet, USB, and analog capabilities - making it optimal for non-display industrial gateways. Against LPC4333FET256, it adds critical Ethernet and dual USB PHYs without sacrificing flash or SRAM, justifying its use in connected automation nodes.

Availability

LPC4353FET256 is available at Aetrix Electronics and suitable for industrial motor control, embedded audio gateways, smart energy metering, and PLC communication modules requiring stable component supply and long-term manufacturability.

Supply support for LPC4353FET256 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 markets, with deep expertise in ARM-based microcontrollers and edge processing.

The LPC43xx family was designed for high-performance, real-time embedded applications demanding dual-core determinism, industrial connectivity (Ethernet/CAN/USB), and analog integration - targeting motor drives, audio infrastructure, and smart grid equipment.

FAQ

What is the maximum operating frequency of the LPC4353FET256?

The LPC4353FET256 supports a maximum CPU frequency of 204 MHz for both the ARM Cortex-M4F and Cortex-M0 cores. This is achieved using the on-chip PLLs, with the main PLL configured from a 1–25 MHz crystal input. The device maintains full peripheral functionality at this speed, including Ethernet MAC, USB controllers, and ADC sampling at 400 kS/s.

Does the LPC4353FET256 include an Ethernet MAC?

Yes, the LPC4353FET256 includes a full-featured 10/100T Ethernet MAC with RMII and MII interfaces, DMA support, and IEEE 1588-2008 v2 time stamping capability. It supports high-throughput packet handling at low CPU load and is functionally identical to the Ethernet MAC in the LPC4357FET256 - confirming its suitability for industrial Ethernet protocols like EtherCAT and PROFINET.

What is the flash memory configuration of the LPC4353FET256?

The LPC4353FET256 contains 512 kB of on-chip flash memory, organized into two independent banks of 256 kB each (Bank A and Bank B). This dual-bank architecture enables secure over-the-air (OTA) firmware updates with zero downtime - one bank executes while the other is reprogrammed - and is confirmed in Table 2 of the official NXP datasheet Rev. 5.4.

Is the LCD controller present in the LPC4353FET256?

No, the LCD controller is not present in the LPC4353FET256. According to Table 2 in the NXP datasheet Rev. 5.4, LCD support is explicitly marked "yes" only for LPC4357/53 variants - but the LPC4353FET256 is excluded from this feature. This omission is intentional to differentiate the part within the family and reduce die cost where display interface is unnecessary.

What temperature grade does the LPC4353FET256 support?

The LPC4353FET256 is rated for industrial temperature operation from –40 °C to +85 °C, as indicated by the "F" suffix in its ordering code (per Table 1 and Table 2 of the NXP datasheet Rev. 5.4). This grade ensures reliable operation in harsh environments such as factory floors, outdoor energy meters, and motor drive enclosures without derating.