NXP Semiconductors LPC54605J256ET100E

Overview

LPC54605J256ET100E from NXP Semiconductors is a 32-bit ARM Cortex-M4 microcontroller operating at up to 180 MHz, featuring 256 KB flash, 136 KB SRAM, dual USB (HS/FS) controllers with on-chip PHYs, and a 12-bit 5.0 MS/s ADC. It targets low-power industrial control and USB-connected edge devices requiring real-time signal processing and secure firmware updates.

For engineers reviewing the LPC54605J256ET100E datasheet, LPC54605J256ET100E pinout, LPC54605J256ET100E application, or LPC54605J256ET100E equivalent, key selection criteria include TFBGA100 package compatibility, absence of Ethernet AVB and CAN FD (distinguishing it from LPC54616/LPC54628), Flexcomm peripheral configurability, and boot-source flexibility via PIO0_4–PIO0_6.

Technical Context

The LPC54605J256ET100E implements an ARM Cortex-M4 core (r0p1) with hardware FPU and MPU, a 3-stage Harvard pipeline, and integrated SWD debug with ETM trace. Its memory subsystem includes 256 KB flash with accelerator, 136 KB SRAM (128 KB main + 8 KB USB-dedicated), and 16 KB EEPROM.

Peripheral architecture centers on ten software-configurable Flexcomm interfaces (USART/SPI/I2C/I2S), dual USB controllers (HS/FS with PHY), a 12-bit ADC with 12 channels and 5.0 MS/s sampling, and a DMIC subsystem with PDM input and I2S output - all supported by a 30-channel DMA controller with programmable triggers.

Key Specifications

Pinout & Package

Package: TFBGA100 (SOT926-1), 9 × 9 × 0.7 mm body, 100-ball array with 0.5 mm pitch. Ball A1 index located at top-left corner per JEDEC MO-277.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC54605J256ET100E, LPC54606J256ET100 adds Ethernet/CAN 2.0 at no performance or USB trade-off, while LPC54616J256ET180 expands protocol scope to AVB/CAN FD but requires larger packaging and higher system integration effort.

Availability

LPC54605J256ET100E is available at Aetrix Electronics and suitable for industrial USB gateways, smart sensor nodes, USB human interface devices, and embedded audio endpoints requiring stable component supply and long-term manufacturability.

Supply support for LPC54605J256ET100E 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 applications, with deep expertise in ARM-based microcontrollers and edge processing.

The LPC546xx family was designed for high-performance, low-power embedded applications demanding rich connectivity (USB, Flexcomm), real-time analog acquisition (ADC, DMIC), and robust security (SHA, eCRP), targeting industrial control and intelligent edge devices.

FAQ

What is the maximum operating frequency of the LPC54605J256ET100E?

The LPC54605J256ET100E operates at a maximum CPU frequency of 180 MHz, enabled by its ARM Cortex-M4 core with hardware FPU and MPU. This frequency is sustained across the full industrial temperature range (−40 °C to +105 °C) and 1.71 V to 3.6 V supply, as validated in NXP's LPC546xx datasheet Rev. 2.8. The LPC54605J256ET100E achieves this using the system PLL fed by the internal 96 MHz FRO or external crystal sources.

Does the LPC54605J256ET100E support CAN FD or Ethernet AVB?

No, the LPC54605J256ET100E does not include CAN FD or Ethernet AVB peripherals. These features are present only in higher-tier variants like the LPC54616 and LPC54628. The LPC54605J256ET100E retains dual USB (HS/FS), 10 Flexcomm interfaces, 12-bit 5.0 MS/s ADC, and DMIC subsystem - making it optimized for USB-centric applications without networking overhead.

What package type and pin count does the LPC54605J256ET100E use?

The LPC54605J256ET100E uses a TFBGA100 package (SOT926-1): 100-ball thin fine-pitch ball grid array with 0.5 mm pitch, 9 mm × 9 mm body size, and 0.7 mm height. Ball A1 is marked in the top-left corner per JEDEC MO-277. This package supports 64 GPIOs and provides optimal density for compact industrial and portable designs.

How much SRAM is available on the LPC54605J256ET100E, and how is it allocated?

The LPC54605J256ET100E integrates 136 KB of on-chip SRAM: 128 KB contiguous main SRAM accessible via AHB, plus 8 KB dedicated to USB traffic buffering. This allocation enables efficient USB device/host stack operation without external RAM, while leaving ample space for application code, data structures, and DMA buffers - critical for real-time sensor fusion or audio streaming tasks.

Which debug interface does the LPC54605J256ET100E support, and what capabilities does it offer?

The LPC54605J256ET100E supports Serial Wire Debug (SWD) with six instruction breakpoints, two literal comparators, four watchpoints, Serial Wire Output (SWO), and ETM trace. Its debug timestamp counter and enhanced trace capabilities allow cycle-accurate profiling and real-time event logging - essential for validating timing-critical firmware on the LPC54605J256ET100E in industrial control loops.