NXP Semiconductors LPC4333JET256,551

Overview

LPC4333JET256 from NXP Semiconductors is a dual-core ARM Cortex-M4F/M0 microcontroller with 512 kB flash (256 kB per bank), 136 kB SRAM, Ethernet MAC, two high-speed USB interfaces (one OTG-capable), C_CAN 2.0B controller, and quad SPI Flash Interface (SPIFI), designed for industrial automation and motor control systems requiring deterministic real-time processing and peripheral offload.

For engineers reviewing the LPC4333JET256 datasheet, LPC4333JET256 pinout, LPC4333JET256 application, or LPC4333JET256 equivalent, key selection criteria include dual-core asymmetric processing capability, LBGA256 package compatibility, -40 °C to +105 °C industrial temperature grade, Ethernet + USB coexistence, and on-chip EEPROM for configuration storage.

Technical Context

The LPC4333JET256 integrates an ARM Cortex-M4F core (up to 204 MHz) with hardware FPU and MPU, paired with an independent ARM Cortex-M0 coprocessor (also up to 204 MHz) for peripheral management and real-time task partitioning. Its AHB multilayer matrix enables concurrent access to memory and peripherals without bus contention.

It features dedicated hardware blocks including a State Configurable Timer (SCTimer/PWM) for flexible waveform generation, Global Input Multiplexer Array (GIMA) for dynamic signal routing, and dual 10-bit ADCs (400 kSamples/s) with shared channel mapping. The external memory controller supports SDRAM, NOR flash, and SRAM expansion.

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 LPC4333JET256, LPC4353JET256 offers double flash capacity without altering pinout or thermal profile, while LPC4337JET256 adds LCD support - both maintain identical dual-core timing behavior and peripheral register maps, enabling scalable firmware reuse.

Availability

LPC4333JET256 is available at Aetrix Electronics and suitable for industrial automation, motor control, and e-metering applications requiring stable component supply, long-term lifecycle assurance, and extended temperature operation.

Supply support for LPC4333JET256 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 product line was engineered for deterministic real-time control in resource-constrained industrial environments, emphasizing dual-core asymmetry, hardware-accelerated peripherals, and robust communication stacks (Ethernet, USB, CAN, SPIFI).

FAQ

What is the maximum operating frequency of the LPC4333JET256?

The LPC4333JET256 supports a maximum CPU frequency of 204 MHz for both its ARM Cortex-M4F and ARM Cortex-M0 cores. This frequency is achieved using internal PLLs fed from either an external crystal (1–25 MHz) or the 12 MHz internal RC oscillator, with the system clock routed through the Clock Generation Unit (CGU) to ensure stability across temperature and voltage variations.

Does the LPC4333JET256 include an LCD controller?

No, the LPC4333JET256 does not include an LCD controller. According to Table 2 in the datasheet, LCD functionality is explicitly excluded from the LPC433x series variants. Only LPC435x and LPC432x parts (e.g., LPC4357) feature the LCD controller with support for STN/TFT panels and programmable resolution up to 1024×768.

How many USB interfaces does the LPC4333JET256 support, and what are their capabilities?

The LPC4333JET256 supports two high-speed USB 2.0 interfaces: USB0 (Host/Device/OTG with on-chip high-speed PHY) and USB1 (Host/Device with on-chip full-speed PHY and ULPI interface for external high-speed PHY). Both include DMA support and integrated USB stack firmware in ROM, enabling simultaneous USB device enumeration and host enumeration without CPU intervention.

What is the purpose of the State Configurable Timer (SCTimer/PWM) in the LPC4333JET256?

The SCTimer/PWM in the LPC4333JET256 is a programmable state machine-based peripheral that generates complex PWM waveforms, captures input events, and sequences outputs based on configurable states and transitions. It operates independently of the CPU, enabling precise, jitter-free motor control (e.g., three-phase BLDC commutation) and synchronized I/O without consuming Cortex-M4F cycles.

Is the LPC4333JET256 pin-compatible with other members of the LPC43xx family in LBGA256 packaging?

Yes, all LPC43xx variants in LBGA256 packaging - including LPC4333JET256, LPC4337JET256, LPC4353JET256, and LPC4357JET256 - share identical pinouts and mechanical footprints (SOT740-2). Functional differences (e.g., LCD presence, flash size) are implemented internally and do not affect PCB layout, enabling hardware scalability within the same board design.