NXP Semiconductors LPC4370FET100K

Overview

LPC4370FET100K from NXP Semiconductors is a dual-core ARM Cortex-M4/M0 microcontroller for industrial and embedded control applications, operating at up to 204 MHz CPU frequency, integrating 282 kB SRAM, Ethernet MAC with IEEE 1588 support, two high-speed USB interfaces (one OTG-capable), and an 80 MSps 12-bit high-speed ADC. It targets real-time motor control, power management, and connected industrial devices.

For engineers reviewing the LPC4370FET100K datasheet, LPC4370FET100K pinout, LPC4370FET100K application, or LPC4370FET100K equivalent, key selection considerations include its TFBGA100 package (100-ball, 9 × 9 mm), absence of LCD and 10-bit ADCs (vs. LBGA256 variant), 49 GPIO pins, and dedicated C_CAN, SCTimer/PWM, and GPDMA support - all critical for deterministic I/O and communication in resource-constrained designs.

Technical Context

The LPC4370FET100K implements a heterogeneous dual-core architecture: a primary ARM Cortex-M4 core with hardware FPU and MPU, plus two independent ARM Cortex-M0 subsystems - one as a coprocessor offloading peripheral management, and another dedicated to SPI/SGPIO control via a separate AHB matrix. Core-to-core communication occurs over a dedicated bridge with shared memory access.

Its clock system includes three PLLs: one for CPU operation up to 204 MHz, one dedicated to USB high-speed PHY timing, and a third configurable for audio applications. The device supports IEEE 1588-2008 v2 timestamping in its Ethernet MAC and uses a Global Input Multiplexer Array (GIMA) to route events between timers, ADC, and SCTimer/PWM without CPU intervention.

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 microcontroller applications.

Compared with LPC4357FET100 and LPC4337FET100, the LPC4370FET100K uniquely delivers full Ethernet + IEEE 1588, 80 MSps ADCHS, and dual-Cortex-M0 subsystems in the TFBGA100 footprint - making it the only option among these three for time-synchronized industrial gateways requiring high-speed analog acquisition and deterministic networking.

Availability

LPC4370FET100K is available at Aetrix Electronics and suitable for industrial motor control, smart energy gateways, RFID reader systems, and programmable logic controller I/O modules requiring stable component supply and long-term production continuity.

Supply support for LPC4370FET100K 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 LPC4370FET100K belongs to NXP's LPC4300 series - a family designed for high-performance embedded control requiring heterogeneous processing, deterministic I/O, and integrated networking, targeting industrial automation and smart infrastructure.

FAQ

What is the maximum operating frequency of the LPC4370FET100K?

The LPC4370FET100K operates at a maximum CPU frequency of 204 MHz on both its ARM Cortex-M4 and dual ARM Cortex-M0 cores. This frequency is achieved using the internal PLLs fed by the 12 MHz IRC oscillator or an external crystal (1–25 MHz). The device maintains this performance across its specified industrial temperature range (-40°C to +105°C) with appropriate voltage regulation (2.2 V to 3.6 V).

Does the LPC4370FET100K include an Ethernet MAC with IEEE 1588 support?

Yes, the LPC4370FET100K integrates a 10/100T Ethernet MAC with full RMII and MII interface support, DMA acceleration, and hardware-based IEEE 1588-2008 v2 timestamping. This enables precise time synchronization for industrial automation applications - a feature confirmed in the official NXP datasheet Rev. 2.4 and retained in the TFBGA100 package variant.

How many ADC channels does the LPC4370FET100K support, and what are their specifications?

The LPC4370FET100K includes one 12-bit high-speed ADC (ADCHS) with 6 channels and a maximum sampling rate of 80 MSps. It does not include the 10-bit ADC0/ADC1 blocks (16 channels total), which are exclusive to the LBGA256 package. All ADCHS channels support DMA and hardware trigger inputs routed via GIMA for deterministic sampling.

What is the GPIO count and key I/O capabilities of the LPC4370FET100K?

The LPC4370FET100K provides 49 general-purpose I/O pins in its TFBGA100 package. These support configurable pull-up/pull-down resistors, open-drain mode, edge- and level-sensitive interrupts, and group-interrupt pattern matching. GPIO registers reside on the AHB bus for low-latency access, and all GPIO ports support DMA transfers for efficient data movement.

Is the LPC4370FET100K pin-compatible with other LPC43xx TFBGA100 variants like LPC4357FET100?

Yes, the LPC4370FET100K is pin-compatible with other LPC43xx devices in the TFBGA100 package (e.g., LPC4357FET100, LPC4337FET100), sharing identical ball mapping, power, ground, and reset pin locations. However, functional differences exist - such as Ethernet, ADCHS, and C_CAN availability - so PCB layout reuse requires verification of signal routing against the specific variant's peripheral enablement table.