NXP Semiconductors LPC43S67JET256E

Overview

LPC43S67JET256E from NXP Semiconductors is a dual-core ARM Cortex-M4/M0 microcontroller for high-integration embedded systems, featuring 1 MB flash, 154 kB SRAM, integrated Ethernet MAC with IEEE 1588 support, dual High-speed USB 2.0 controllers (one with on-chip HS PHY), LCD controller, AES encryption engine, and quad SPI Flash Interface (SPIFI) delivering up to 52 MB/s - deployed in industrial motor control and secure connected metering.

For engineers reviewing the LPC43S67JET256E datasheet, LPC43S67JET256E pinout, LPC43S67JET256E application, or LPC43S67JET256E equivalent, key selection considerations include its LBGA256 package with 164 GPIOs, dual-core asymmetric processing architecture (M4 + M0 coprocessor + M0 subsystem), 204 MHz CPU frequency, hardware floating-point unit, and security features including OTP AES key storage and ROM-based cryptographic API.

Technical Context

The LPC43S67JET256E implements a heterogeneous dual-ARM architecture: a primary Cortex-M4 core (r0p1) running at up to 204 MHz with FPU, MPU, and ETM/ETB trace support, plus an application Cortex-M0 coprocessor (r0p0) and a dedicated Cortex-M0 subsystem managing SGPIO/SPI peripherals via a core-to-core bridge. All three cores operate at up to 204 MHz and share access to the AHB multilayer matrix.

Its memory subsystem includes dual-bank 1 MB flash (512 kB per bank), 154 kB SRAM distributed across multiple blocks (including 32 kB AHB SRAM, 40 kB local SRAM), 16 kB EEPROM, and two banks of OTP memory (256-bit total) - one reserved for encrypted boot image keys. The AES engine supports DMA-accelerated encryption/decryption via ROM API.

Key Specifications

Pinout & Package

Package: LBGA256 (Plastic low profile ball grid array; 256 balls; body 17 × 17 × 1 mm; SOT740-2). Operating temperature range: −40 °C to +105 °C (industrial grade).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC4357JET256, the LPC43S67JET256E adds hardware AES and OTP key storage for secure boot - essential for certified metering. Versus LPC4370JET256, it trades 1 MB flash and second USB HS PHY for lower cost and identical security/peripheral feature set in the same footprint.

Availability

LPC43S67JET256E is available at Aetrix Electronics and suitable for industrial motor control, secure smart metering, and embedded audio gateway applications requiring stable component supply, long-term lifecycle assurance, and qualified industrial-grade sourcing.

Supply support for LPC43S67JET256E 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 LPC43S6x product line was designed for high-performance, security-conscious embedded applications demanding dual-core processing, rich peripheral integration, and hardware-accelerated cryptography - targeting industrial automation, energy metering, and networked HMI systems.

FAQ

What is the maximum operating frequency of the LPC43S67JET256E?

The LPC43S67JET256E supports CPU operation at up to 204 MHz for both the ARM Cortex-M4 main core and the dual Cortex-M0 units (coprocessor and subsystem). This frequency is achieved using internal PLLs that allow full-speed operation without requiring a high-frequency external crystal, and is validated across the full industrial temperature range (−40 °C to +105 °C).

Does the LPC43S67JET256E include hardware AES encryption?

Yes, the LPC43S67JET256E integrates a dedicated AES engine with DMA support and programmable access via a ROM-based API. It also includes two 256-bit banks of One-Time Programmable (OTP) memory - one specifically allocated for storing encrypted keys used to decode the boot image, enabling secure authenticated boot without external security components.

What package type and pin count does the LPC43S67JET256E use?

The LPC43S67JET256E is packaged in a LBGA256 (plastic low profile ball grid array) with 256 solder balls, measuring 17 mm × 17 mm × 1 mm (SOT740-2). It provides 164 GPIO pins with configurable pull-up/pull-down resistors and full peripheral multiplexing, and is rated for industrial temperature operation from −40 °C to +105 °C.

How many USB interfaces does the LPC43S67JET256E support, and what are their capabilities?

The LPC43S67JET256E supports two independent High-speed USB 2.0 interfaces: USB0 includes an on-chip high-speed PHY and supports Host/Device/OTG modes; USB1 includes an on-chip full-speed PHY and ULPI interface for connection to an external high-speed PHY, enabling dual-native USB HS functionality. Both interfaces feature DMA support and integrated USB electrical test software in ROM.

What distinguishes the LPC43S67JET256E from the LPC4357JET256 in terms of security features?

The LPC43S67JET256E includes a hardware AES engine, two dedicated 256-bit OTP memory banks for encrypted key storage, and ROM-based cryptographic APIs - features absent in the LPC4357JET256. These enable secure boot, runtime data encryption, and tamper-resistant firmware updates required for certifications like IEC 62056-21 in e-metering applications.