NXP Semiconductors LPC4370FET256E

Overview

LPC4370FET256E from NXP Semiconductors is a dual-core ARM Cortex-M4/M0 microcontroller for high-performance embedded control, featuring 204 MHz CPU operation, 282 kB on-chip SRAM (including 18 kB dedicated to the M0 subsystem), dual high-speed USB 2.0 interfaces (one with on-chip HS PHY, one with ULPI), 10/100T Ethernet MAC with IEEE 1588 support, and an 80 MSps 12-bit high-speed ADC. It targets industrial motor control and real-time audio processing systems requiring deterministic multi-core execution.

For engineers reviewing the LPC4370FET256E datasheet, LPC4370FET256E pinout, LPC4370FET256E application, or LPC4370FET256E equivalent, key selection considerations include its LBGA256 package with 164 GPIOs, dual USB + Ethernet + LCD controller integration, 204 MHz Cortex-M4 with hardware FPU, and availability of both 10-bit ADCs (8+8 channels) and 12-bit ADCHS - all confirmed for this exact variant per NXP Rev. 2.4 datasheet.

Technical Context

The LPC4370FET256E implements a tightly coupled dual-processor architecture: the main Cortex-M4 core handles primary application tasks at up to 204 MHz with integrated FPU and MPU, while two independent Cortex-M0 units manage peripheral offload - one as a coprocessor and another as a dedicated subsystem controlling SPI/SGPIO via a separate AHB matrix with 2 kB + 16 kB local SRAM. This enables true parallel I/O handling without CPU contention.

Its clock system includes three PLLs: one for the main CPU, one dedicated to USB HS operation, and a third configurable as an audio PLL; combined with GIMA crossbar routing, this supports deterministic event-driven timing for motor control PWM, QEI, and high-speed ADC triggering - all validated for the LBGA256 package in the official datasheet.

Key Specifications

Pinout & Package

Package: LBGA256 (Plastic low profile ball grid array; 256 balls; body 17 × 17 × 1 mm; SOT740-2). Pin functions are multiplexed across 16 GPIO ports (P0–P9, PA–PF), with each pin supporting up to eight digital functions including GPIO, SSP, I2S, Ethernet, USB, and SCTimer I/O - all verified for LPC4370FET256E in NXP datasheet Table 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC4357FET256 and LPC43S70FET256, the LPC4370FET256E provides the full feature set - including LCD controller, dual 10-bit ADCs, and unmodified cryptographic capability - making it the baseline for designs requiring maximum peripheral integration without added security silicon.

Availability

LPC4370FET256E is available at Aetrix Electronics and suitable for industrial motor control, real-time audio processing, smart energy metering, and industrial Ethernet gateway applications requiring stable component supply and long-term manufacturability.

Supply support for LPC4370FET256E 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 focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in ARM-based microcontrollers and edge processing.

The LPC4370 series belongs to NXP's high-performance dual-core MCU product line, designed specifically for deterministic real-time control applications demanding concurrent high-speed analog acquisition, multi-protocol connectivity, and hardware-accelerated signal processing.

FAQ

What is the maximum operating frequency of the LPC4370FET256E main processor?

The LPC4370FET256E main ARM Cortex-M4 processor operates at up to 204 MHz, as confirmed in Section 1 of the NXP datasheet Rev. 2.4. This frequency is sustained using the on-chip PLLs and supported by the 3-stage Harvard architecture with prefetch unit. The LPC4370FET256E achieves this speed across its full industrial temperature range (-40°C to +105°C) with appropriate voltage regulation.

Does the LPC4370FET256E include hardware floating-point support?

Yes, the LPC4370FET256E integrates a single-precision IEEE 754-compliant hardware floating-point unit (FPU) directly within the ARM Cortex-M4 core. This enables accelerated DSP operations such as FFTs and matrix math without software emulation overhead. The FPU is accessible via standard ARM compiler intrinsics and is fully utilized in NXP's CMSIS-DSP library - a key capability confirmed for the LPC4370FET256E in the "Features and benefits" section.

How many ADC channels does the LPC4370FET256E support, and what are their resolutions?

The LPC4370FET256E supports three distinct ADC subsystems: two 10-bit ADCs (ADC0 and ADC1), each with 8 channels (16 total), and one 12-bit high-speed ADC (ADCHS) with 6 channels. All are available only in the LBGA256 package per Table 2 of the datasheet. The 10-bit ADCs sample at up to 400 kSps, while the 12-bit ADCHS achieves 80 MSps - enabling simultaneous precision monitoring and high-speed transient capture in the same design.

Is the LCD controller available on the LPC4370FET256E?

Yes, the LCD controller is present and functional on the LPC4370FET256E. As specified in Table 2 of the NXP datasheet Rev. 2.4, the LBGA256 package variant (LPC4370FET256) includes full LCD controller support with DMA, programmable resolution up to 1024×768, and compatibility with STN and TFT panels. This feature is explicitly omitted in the TFBGA100 variant but is confirmed active and tested for the LPC4370FET256E.

What debug interfaces does the LPC4370FET256E support?

The LPC4370FET256E supports JTAG and Serial Wire Debug (SWD) interfaces, along with serial trace, eight hardware breakpoints, and four watchpoints - all documented in the "Features and benefits" section. It also includes Enhanced Trace Module (ETM) and Enhanced Trace Buffer (ETB) for non-intrusive instruction and data flow analysis. These capabilities are implemented in silicon for the LPC4370FET256E and do not require external debug probes beyond standard ARM-compliant tools.