NXP Semiconductors LPC18S30FET256E

Overview

LPC18S30FET256E from NXP Semiconductors is a 32-bit ARM Cortex-M3 flashless microcontroller with integrated security features, operating at up to 180 MHz, featuring 200 kB on-chip SRAM, dual high-speed USB (Host/Device/OTG + Host/Device), 10/100T Ethernet MAC with IEEE 1588 support, and AES encryption engine for secure boot. It targets industrial control and communication hubs requiring robust peripheral integration and cryptographic integrity.

For engineers reviewing the LPC18S30FET256E datasheet, LPC18S30FET256E pinout, LPC18S30FET256E application, or LPC18S30FET256E equivalent, key selection considerations include its LBGA256 package, absence of LCD controller (vs. LPC18S50), retained EMC and dual ADCs, and full USB0+USB1 + Ethernet capability in this variant - critical for secure networked edge devices.

Technical Context

The LPC18S30FET256E implements an ARM Cortex-M3 core with Harvard architecture, 3-stage pipeline, and built-in MPU supporting eight memory regions plus NVIC for deterministic interrupt handling. Its clock system uses three PLLs: one for CPU (up to 180 MHz), one dedicated to USB0, and a third configurable as audio PLL.

Peripherals are organized across AHB and APB buses with DMA-capable access; the Global Input Multiplexer Array (GIMA) enables flexible event routing between timers, SCTimer/PWM, and ADCs, while the External Memory Controller supports SDRAM, NOR flash, and SRAM expansion - essential for real-time industrial firmware with external code/data storage.

Key Specifications

Pinout & Package

Package: Plastic low-profile ball grid array (LBGA256), 17 mm × 17 mm × 1 mm body, 256-ball layout per SOT740-2 standard. Designed for automated assembly and thermal reliability in industrial environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC18S50FET256, LPC18S30FET256E removes LCD controller to reduce cost and power while retaining full networking and security capabilities; versus LPC4357FET256, it trades dual-core flexibility for certified AES acceleration and IEEE 1588 precision - making it optimal for standards-compliant industrial gateways.

Availability

LPC18S30FET256E is available at Aetrix Electronics and suitable for industrial automation, secure communication hubs, and embedded audio applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for LPC18S30FET256E 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 trusted execution environments.

The LPC18S series is designed specifically for secure, high-performance embedded applications demanding integrated cryptography, deterministic real-time response, and rich peripheral sets - targeting industrial control, networked sensors, and automotive aftermarket systems.

FAQ

What is the maximum operating frequency of the LPC18S30FET256E?

The LPC18S30FET256E operates at a maximum CPU frequency of 180 MHz, achieved via its ARM Cortex-M3 core and triple PLL clock generation unit. This frequency is sustained under industrial temperature ranges (-40°C to +85°C) with proper power supply regulation and thermal management, enabling high-throughput data processing in real-time industrial applications.

Does the LPC18S30FET256E include an LCD controller?

No, the LPC18S30FET256E does not include an LCD controller. Unlike the LPC18S50 variant, this part omits the LCD subsystem while retaining all other major peripherals including Ethernet, dual USB, EMC, and AES engine. This differentiation is confirmed in Table 2 of the official datasheet (Rev. 1.3, p.5).

How many USB interfaces does the LPC18S30FET256E support?

The LPC18S30FET256E supports two independent USB interfaces: USB0 (High-Speed Host/Device/OTG with integrated PHY) and USB1 (High-Speed Host/Device with ULPI interface for external PHY). Both include DMA support and are fully functional in the LBGA256 package, enabling simultaneous USB device enumeration and host-side peripheral control.

What security features are implemented in the LPC18S30FET256E?

The LPC18S30FET256E integrates a hardware AES engine supporting 128/256-bit encryption/decryption with DMA acceleration, two banks (256-bit total) of OTP memory for secure AES key storage, and ROM-based APIs for secure boot validation. These features enable certified secure boot flows compliant with IEC 62443-3-3 SL2 requirements without external security ICs.

Is the LPC18S30FET256E pin-compatible with other LPC18S family members in LBGA256?

Yes, the LPC18S30FET256E shares the same LBGA256 package (SOT740-2) and pinout with LPC18S50FET256 and LPC18S10FET256 variants. However, functional differences exist - e.g., LCD controller is absent in LPC18S30FET256E, and certain pins default to reserved states where unused peripherals are disabled. Full compatibility requires verifying peripheral enablement in software.