NXP Semiconductors LPC1833JET256,551

Overview

LPC1833JET256 from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller operating at up to 180 MHz, featuring 512 kB flash (dual-bank), 136 kB SRAM, and integrated Ethernet MAC with IEEE 1588 support. It includes two high-speed USB interfaces (one OTG-capable), quad SPI Flash Interface (SPIFI), and a State-configurable Timer/PWM subsystem. This MCU targets industrial control systems requiring deterministic real-time response, networked connectivity, and peripheral flexibility.

For engineers reviewing the LPC1833JET256 datasheet, LPC1833JET256 pinout, LPC1833JET256 application, or LPC1833JET256 equivalent, key selection criteria include its LBGA256 package, -40 °C to +105 °C temperature grade, absence of LCD controller, presence of motor control PWM and QEI, and dual USB PHY configuration with ULPI support on USB1.

Technical Context

The LPC1833JET256 implements an ARM Cortex-M3 r2p1 core with Harvard architecture, 3-stage pipeline, and integrated MPU supporting eight memory regions. Its clock system uses three PLLs: one for CPU operation up to 180 MHz, one dedicated to USB high-speed timing, and a third configurable as audio PLL.

Digital peripherals include an AHB-connected SCTimer/PWM subsystem with event-driven state transitions, Global Input Multiplexer Array (GIMA) for flexible signal routing, and an External Memory Controller supporting SDRAM, NOR flash, and SRAM. Analog resources comprise two 10-bit ADCs (400 kSamples/s, 8 total channels) and one 10-bit DAC (400 kSamples/s).

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 microcontroller applications.

Compared with LPC1853JET256 and LPC4357JET256, the LPC1833JET256 delivers optimal balance of Ethernet capability, real-time determinism, and cost for industrial gateways and motor control-without unnecessary LCD or floating-point overhead.

Availability

LPC1833JET256 is available at Aetrix Electronics and suitable for industrial automation, smart energy metering, and RFID reader systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LPC1833JET256 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 LPC18xx product line was designed specifically for high-performance industrial applications demanding real-time responsiveness, deterministic Ethernet, and rich peripheral integration-targeting PLCs, gateways, and motor drives.

FAQ

What is the maximum operating frequency of the LPC1833JET256?

The LPC1833JET256 operates at a maximum CPU frequency of 180 MHz, achieved using its internal PLL with a crystal oscillator input ranging from 1 MHz to 25 MHz. This frequency is sustained across the full -40 °C to +105 °C industrial temperature range, as validated in the official NXP datasheet Rev. 5.3.

Does the LPC1833JET256 include an LCD controller?

No, the LPC1833JET256 does not include an LCD controller. This feature is present in higher-tier variants such as the LPC185x series but omitted in the LPC183x family to reduce cost and silicon area. The LPC1833JET256 retains all other major peripherals including Ethernet, dual USB, SPIFI, and SCTimer/PWM.

What is the flash memory configuration of the LPC1833JET256?

The LPC1833JET256 contains 512 kB of on-chip flash memory organized in dual banks (256 kB each), enabling background programming and atomic firmware updates without halting application execution. This configuration is confirmed in Table 2 of the NXP LPC185X_3X_2X_1X datasheet.

Which USB interfaces does the LPC1833JET256 support?

The LPC1833JET256 supports two USB 2.0 interfaces: USB0 (Host/Device/OTG with integrated high-speed PHY) and USB1 (Host/Device with ULPI interface to external high-speed PHY). Both include DMA support and are fully functional across the industrial temperature range.

Is the LPC1833JET256 pin-compatible with other LPC18xx variants in LBGA256?

Yes, the LPC1833JET256 shares identical LBGA256 pinout and footprint with other JET256-suffixed LPC18xx parts (e.g., LPC1853JET256, LPC1837JET256), as confirmed by NXP's ordering information tables and package drawings. Signal mapping and power/ball assignments are consistent across this package variant.