NXP Semiconductors LPC4337JET256,551

Overview

LPC4337JET256 from NXP Semiconductors is a dual-core ARM Cortex-M4F/M0 microcontroller designed for high-performance embedded control with real-time processing demands. It operates at up to 204 MHz, integrates 1 MB flash (dual-bank), 136 kB SRAM, Ethernet MAC, two high-speed USB 2.0 interfaces, and supports industrial motor control and power management systems.

For engineers reviewing the LPC4337JET256 datasheet, LPC4337JET256 pinout, LPC4337JET256 application, or LPC4337JET256 equivalent, this page delivers verified core architecture details, package-specific pin mapping, functional peripheral allocation, and validated alternative options for design continuity and supply resilience.

Technical Context

The LPC4337JET256 implements a tightly coupled dual-core architecture: the Cortex-M4F handles signal-intensive tasks (e.g., motor FOC, audio processing) with hardware FPU and DSP instructions, while the Cortex-M0 co-processor manages peripheral offload and deterministic I/O handling at up to 204 MHz. Both cores share access to AHB multilayer matrix interconnect and multiple SRAM banks.

Its peripheral subsystem includes an Ethernet MAC with IEEE 1588 v2 timestamping support, dual high-speed USB 2.0 controllers (one with on-chip HS PHY, one with ULPI interface), quad SPI Flash Interface (SPIFI) enabling execute-in-place, and a State Configurable Timer (SCTimer/PWM) for flexible waveform generation - all accessible via GIMA crossbar routing for event-driven synchronization.

Key Specifications

Pinout & Package

Package: LBGA256 (Plastic low-profile ball grid array; 256 balls; body 17 × 17 × 1 mm; SOT740-2). Pin functions are defined per ball position in the official NXP pinout diagram for LBGA256 - only pins assigned to LPC4337JET256 in Table 3 of the datasheet are valid.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC4357JET256, the LPC4337JET256 removes LCD support to reduce cost while retaining full Ethernet, dual USB, and dual-core performance; versus LPC4330JET256, it adds essential networking features without altering PCB layout or software porting effort.

Availability

LPC4337JET256 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, and Ethernet gateway applications requiring stable component supply, long-term lifecycle assurance, and qualified sourcing for production ramp.

Supply support for LPC4337JET256 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 engineered for high-integration industrial control applications demanding real-time responsiveness, deterministic peripherals, and robust networking - targeting motor drives, energy infrastructure, and protocol gateways.

FAQ

What is the maximum operating frequency of the LPC4337JET256?

The LPC4337JET256 supports a maximum CPU frequency of 204 MHz for both its ARM Cortex-M4F and Cortex-M0 cores. This is achieved using internal PLLs fed from either an external crystal (1–25 MHz) or the 12 MHz internal RC oscillator, with voltage and temperature compensation ensuring stable operation across the -40 °C to +105 °C industrial range.

Does the LPC4337JET256 include an Ethernet MAC with IEEE 1588 support?

Yes, the LPC4337JET256 integrates a full 10/100T Ethernet MAC with both RMII and MII interfaces, DMA acceleration, and hardware-level IEEE 1588-2008 v2 timestamping. This enables precise time synchronization for industrial protocols like Precision Time Protocol (PTP) without external PHY timestamping logic.

How many USB interfaces does the LPC4337JET256 provide, and what are their capabilities?

The LPC4337JET256 provides two independent high-speed USB 2.0 interfaces: USB0 supports Host/Device/OTG modes with integrated high-speed PHY; USB1 supports Host/Device modes with on-chip full-speed PHY and ULPI interface for external high-speed PHY attachment - enabling dual-role connectivity and redundancy.

What is the flash and SRAM memory configuration of the LPC4337JET256?

The LPC4337JET256 contains 1 MB of on-chip flash memory organized in dual banks (512 kB each) for safe firmware updates, plus 136 kB of SRAM distributed across multiple AHB-accessible blocks (including 32 kB local SRAM for Cortex-M0). It also includes 16 kB EEPROM and 64 kB ROM with boot code and USB stack.

Is the LPC4337JET256 pin-compatible with other members of the LPC43xx family?

Yes, the LPC4337JET256 in LBGA256 package shares identical pinout and ball assignment with LPC4357JET256, LPC4333JET256, and LPC4330JET256 - enabling drop-in replacement within the same package variant, provided peripheral usage aligns with the specific part's feature set (e.g., Ethernet presence, flash size).