NXP Semiconductors LPC43S30FET100E

Overview

LPC43S30FET100E from NXP Semiconductors is a dual-core ARM Cortex-M4/M0 microcontroller targeting secure, high-performance embedded control applications. It operates at up to 204 MHz, integrates 264 kB SRAM (no flash), features an AES encryption engine, dual USB 2.0 interfaces (USB0 with on-chip HS PHY, USB1 without HS PHY), and supports Ethernet MAC with IEEE 1588 timestamping - deployed in industrial gateways requiring real-time co-processing and secure boot.

For engineers reviewing the LPC43S30FET100E datasheet, LPC43S30FET100E pinout, LPC43S30FET100E application, or LPC43S30FET100E equivalent, key selection considerations include its TFBGA100 package (100-ball, 9 × 9 mm), absence of LCD controller and motor control PWM, reduced GPIO count (49 pins), and USB1 limited to full-speed PHY + ULPI interface - critical for compact, cost-optimized designs with Ethernet/USB host-device connectivity and cryptographic integrity.

Technical Context

The LPC43S30FET100E implements a tightly coupled dual-core architecture: the Cortex-M4 core handles main application processing and DSP-intensive tasks with hardware FPU and MPU, while the Cortex-M0 coprocessor offloads real-time I/O management and peripheral control. Both cores share access to the AHB multilayer matrix and 264 kB SRAM distributed across multiple banks - two of which support independent power-down.

Its clock system uses three PLLs: one for CPU operation up to 204 MHz, a dedicated USB PLL for USB0, and a third configurable as audio PLL. The device includes a ROM-based boot loader with AES decryption API, 64-bit OTP for general use, and two 256-bit OTP banks - one reserved for encrypted boot key storage - enabling secure firmware authentication without external crypto elements.

Key Specifications

Pinout & Package

Package: TFBGA100 (plastic thin fine-pitch ball grid array; 100 balls; body 9 × 9 × 0.7 mm; SOT926-1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC43S30FET100E, the LPC43S30FBD144 offers greater I/O and display capability at the expense of size and cost, while the LPC43S20FET180 sacrifices Ethernet, memory, and USB functionality for lower entry price - making LPC43S30FET100E the optimal balance of security, connectivity, and compactness in TFBGA form factor.

Availability

LPC43S30FET100E is available at Aetrix Electronics and suitable for industrial gateways, secure audio endpoints, automotive diagnostic tools, and energy monitoring hubs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for LPC43S30FET100E 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 LPC43S series is designed for high-integrity embedded applications demanding dual-core processing, hardware-accelerated security, and rich peripheral integration - particularly where Ethernet, USB, and deterministic real-time control converge.

FAQ

What is the maximum operating frequency of the LPC43S30FET100E?

The LPC43S30FET100E supports a maximum CPU frequency of 204 MHz for both the ARM Cortex-M4 and Cortex-M0 cores. This is achieved using the internal CPU PLL fed by the 12 MHz IRC oscillator or an external crystal (1–25 MHz). The frequency is confirmed in Section 2.2 of the official NXP datasheet Rev. 1.3.

Does the LPC43S30FET100E include on-chip flash memory?

No, the LPC43S30FET100E is a flashless microcontroller. It contains 264 kB of SRAM for code and data execution and 64 kB of ROM holding the boot loader, USB stack, and AES API. Firmware must be loaded from external memory such as SPIFI flash or executed in place (XIP) from it - a defining characteristic of the LPC43Sx0 family.

How many USB interfaces does the LPC43S30FET100E support, and what are their capabilities?

The LPC43S30FET100E supports two USB 2.0 interfaces: USB0 is a High-Speed Host/Device/OTG interface with an integrated on-chip high-speed PHY; USB1 is a Full-Speed Host/Device interface with ULPI support for connection to an external high-speed PHY - but no on-chip HS PHY. This configuration is explicitly documented in Table 2 of the datasheet.

What security features are implemented in the LPC43S30FET100E?

The LPC43S30FET100E integrates a dedicated AES-128/256 encryption/decryption engine with DMA support, 64-bit general-purpose OTP memory, and two 256-bit OTP banks - one reserved for storing an encrypted boot key. Secure boot is enabled via the ROM-based AES API, allowing decryption and authentication of images stored in external SPIFI flash before execution.

Is the LPC43S30FET100E pin-compatible with other members of the LPC43S family?

No, the LPC43S30FET100E is not pin-compatible with other LPC43S variants. It uses the TFBGA100 package (SOT926-1), whereas LPC43S30FBD144 uses LQFP144 and LPC43S30FET256 uses LBGA256. Pin functions and counts differ significantly across packages - for example, TFBGA100 provides only 49 GPIO versus 164 in LBGA256 - requiring unique PCB layout per variant.