NXP Semiconductors LPC4370FET100E

Overview

LPC4370FET100E from NXP Semiconductors is a dual-core ARM Cortex-M4/M0 microcontroller for industrial and embedded control applications, featuring a 204 MHz Cortex-M4 main processor, a 204 MHz Cortex-M0 coprocessor, 282 kB on-chip SRAM, dual high-speed USB 2.0 interfaces (one with integrated HS PHY, one with ULPI), and 100-ball TFBGA packaging. It supports Ethernet MAC with IEEE 1588 timestamping and a 80 MSps 12-bit high-speed ADC.

For engineers reviewing the LPC4370FET100E datasheet, LPC4370FET100E pinout, LPC4370FET100E application, or LPC4370FET100E equivalent, key selection considerations include its TFBGA100 footprint (49 GPIOs), absence of LCD and second USB PHY, presence of EMC and SCTimer/PWM, and suitability for real-time motor control, e-metering, and industrial gateway designs requiring deterministic peripheral offload.

Technical Context

The LPC4370FET100E implements a heterogeneous dual-core architecture: the Cortex-M4 executes primary application code with hardware FPU and MPU support, while the dedicated Cortex-M0 coprocessor handles time-critical peripheral management-including SPI, SGPIO, and interrupt routing-via a core-to-core bridge and isolated AHB subsystem. This separation enables deterministic latency for industrial I/O.

Its memory subsystem includes 264 kB SRAM on the main AHB matrix plus 18 kB in the M0 subsystem, with independent power-down capability per SRAM block. The device integrates three PLLs: one for CPU clocking up to 204 MHz, one dedicated to USB0, and one configurable as audio PLL-enabling precise clock domain isolation for mixed-signal operation.

Key Specifications

Pinout & Package

Package: TFBGA100 (SOT926-1), 9 × 9 × 0.7 mm body, 100-ball array with 0.65 mm pitch. Ball A1 marked by index area; top-side transparent view per Figure 3 in datasheet Rev. 2.4.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC4357FET100, LPC4370FET100E delivers higher analog acquisition bandwidth and dedicated M0 subsystem memory; compared with LPC4370FET256, it trades LCD, QEI, and extra ADC channels for compact TFBGA100 packaging and lower system cost - making it optimal for space-constrained industrial gateways and metering endpoints.

Availability

LPC4370FET100E is available at Aetrix Electronics and suitable for industrial automation, e-metering, and RFID reader applications requiring stable component supply, long-term lifecycle support, and consistent traceable sourcing.

Supply support for LPC4370FET100E 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 LPC4300 series, including LPC4370FET100E, was designed for high-performance embedded control in resource-constrained industrial environments - emphasizing dual-core determinism, mixed-signal integration, and IEEE 1588-compliant networking.

FAQ

What is the maximum operating frequency of the LPC4370FET100E main processor?

The LPC4370FET100E features an ARM Cortex-M4 core rated for operation up to 204 MHz. This maximum frequency is achievable under specified voltage (3.3 V ±10%) and temperature (–40 °C to +85 °C) conditions, with all internal PLLs configured per the CGU register settings in the user manual. The Cortex-M0 coprocessor also operates at up to 204 MHz, enabling symmetric performance across both cores.

Does the LPC4370FET100E include a hardware floating-point unit?

Yes, the LPC4370FET100E integrates a single-precision IEEE 754-compliant hardware floating-point unit (FPU) within its ARM Cortex-M4 core. This FPU accelerates mathematical operations required for motor control algorithms, FFT-based power quality analysis, and sensor fusion - eliminating reliance on software emulation and reducing CPU load during intensive calculations.

How many USB interfaces does the LPC4370FET100E support, and what are their capabilities?

The LPC4370FET100E supports two high-speed USB 2.0 interfaces: USB0 provides Host/Device/OTG functionality with an integrated on-chip high-speed PHY; USB1 provides Host/Device functionality with an ULPI interface only - requiring an external high-speed PHY for full operation. Neither interface includes a full-speed PHY on-die beyond USB0's integrated HS PHY.

What analog-to-digital converter resources are available on the LPC4370FET100E?

The LPC4370FET100E includes one 12-bit high-speed ADC (ADCHS) capable of 80 million samples per second, with DMA support and programmable trigger sources via GIMA. It does not include the 10-bit ADC0/ADC1 or 10-bit DAC found in the LBGA256 variant - confirming that all 10-bit analog peripherals are package-dependent and absent in TFBGA100.

Is the LPC4370FET100E pin-compatible with other members of the LPC4300 family?

No, the LPC4370FET100E is not pin-compatible with other LPC4300 variants such as LPC4357FET100 or LPC4370FET256. While it shares the TFBGA100 footprint with LPC4357FET100, differences in peripheral mapping (e.g., missing QEI, motor PWM, and LCD signals) and ball function assignments mean PCB layout cannot be reused without verification and modification.