NXP Semiconductors LPC4330FET100,551

Overview

LPC4330FET100,551 from NXP Semiconductors is a dual-core ARM Cortex-M4/M0 microcontroller targeting industrial and embedded control applications. It operates at up to 204 MHz, integrates 264 kB of SRAM (distributed across multiple AHB-accessible blocks), supports 10/100T Ethernet with IEEE 1588 timestamping, and includes two high-speed USB interfaces - one with on-chip HS PHY (USB0), the other with ULPI interface only (USB1). It is used in networked motor drives requiring real-time co-processing and deterministic I/O.

For engineers reviewing the LPC4330FET100,551 datasheet, LPC4330FET100,551 pinout, LPC4330FET100,551 application, or LPC4330FET100,551 equivalent, key selection criteria include its TFBGA100 package (100-ball, 9 × 9 × 0.7 mm), absence of LCD controller and motor control PWM, 49 GPIO pins, dual 10-bit ADCs (8 channels total), and USB1's lack of integrated high-speed PHY - requiring external PHY for HS device/host operation.

Technical Context

The LPC4330FET100,551 implements a tightly coupled dual-core architecture: the Cortex-M4 serves as the primary application processor with hardware FPU, MPU, and ETM/ETB trace support, while the Cortex-M0 offloads real-time tasks such as protocol stack handling or sensor preprocessing. Both cores share memory via an AHB multilayer matrix but maintain independent debug interfaces (JTAG/SWD).

Its clock system uses three PLLs - one for CPU (up to 204 MHz), one dedicated to USB0, and a third configurable for audio - enabling precise domain isolation. The GIMA crossbar allows flexible event routing between peripherals like SCTimer/PWM, ADCs, and timers, supporting complex state-machine-driven I/O 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). Pinout validated per NXP LPC4350_30_20_10 Rev. 4.6 datasheet Figure 4 and Table 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC4330FET100,551, the LPC4330FBD144 offers greater I/O and analog channel count at the expense of footprint and thermal density, while the LPC4320FET100 removes Ethernet and USB0 PHY to reduce BOM cost - making LPC4330FET100,551 the optimal balance of connectivity, density, and real-time capability in compact industrial formats.

Availability

LPC4330FET100,551 is available at Aetrix Electronics and suitable for industrial motor drives, networked energy meters, and USB-capable gateways requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for LPC4330FET100,551 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 LPC4300 series was designed for high-performance embedded control requiring dual-core determinism, rich peripheral integration (Ethernet, USB, ADC), and low-power operation - targeting industrial automation, motor control, and smart infrastructure.

FAQ

What is the maximum operating frequency of the LPC4330FET100,551?

The LPC4330FET100,551 supports a maximum CPU frequency of 204 MHz for both the ARM Cortex-M4 and Cortex-M0 cores. This is achieved using the internal CPU PLL with a crystal oscillator input (1–25 MHz) or the 12 MHz IRC oscillator. The actual achievable frequency depends on voltage supply (2.2–3.6 V) and thermal conditions, and must comply with the dynamic voltage and frequency scaling (DVFS) settings defined in the CGU registers.

Does the LPC4330FET100,551 include an integrated Ethernet PHY?

No, the LPC4330FET100,551 includes only the Ethernet MAC layer with RMII and MII interfaces - it does not integrate a physical layer (PHY). External PHY ICs (e.g., LAN8720A, DP83848) must be connected via RMII signals (TXD0/1, RXD0/1, REF_CLK, CRS_DV, etc.) and configured through the EMAC registers. The MAC supports IEEE 1588-2008 v2 hardware timestamping regardless of PHY choice.

How many USB interfaces does the LPC4330FET100,551 support, and what are their capabilities?

The LPC4330FET100,551 supports two USB 2.0 interfaces: USB0 is a full HS Host/Device/OTG interface with integrated on-chip high-speed PHY; USB1 is a HS Host/Device interface with ULPI interface only - requiring an external HS PHY for operation. USB0 can function standalone; USB1 cannot operate at high speed without external PHY hardware and matching impedance layout.

What is the SRAM configuration of the LPC4330FET100,551, and how is it mapped?

The LPC4330FET100,551 contains 264 kB of on-chip SRAM, organized into five physically distinct blocks: 128 kB local SRAM (Cortex-M4 only), 72 kB local SRAM (Cortex-M0 only), 32 kB AHB SRAM, and two 16 kB AHB SRAM blocks. Each block has independent bus access and power-down capability - enabling selective retention during low-power modes and optimized DMA channel allocation without contention.

Is the LPC4330FET100,551 pin-compatible with other members of the LPC43xx family?

No, the LPC4330FET100,551 is not pin-compatible with other LPC43xx variants in different packages (e.g., LBGA256, LQFP144) due to differing ball counts and signal allocations. Even within TFBGA100, LPC4320FET100 and LPC4310FET100 share the same footprint but differ in peripheral enablement (e.g., Ethernet, USB0) and reset behavior - requiring schematic and layout verification before substitution.