NXP Semiconductors LPC54102J256UK49Z

Overview

LPC54102J256UK49Z from NXP Semiconductors is a dual-core ARM Cortex-M4/M0+ microcontroller with 256 kB flash, 104 kB SRAM, 12-bit 5.0 Msamples/sec ADC, and integrated SCTimer/PWM - deployed in industrial sensor nodes requiring real-time control, low-power operation, and deterministic I/O timing.

For engineers reviewing the LPC54102J256UK49Z datasheet, LPC54102J256UK49Z pinout, LPC54102J256UK49Z application, or LPC54102J256UK49Z equivalent, this page delivers verified core architecture, validated WLCSP49 pin mapping, confirmed dual-core clock synchronization at 150 MHz, and documented peripheral wake-up capability from deep power-down modes.

Technical Context

The LPC54102J256UK49Z implements tightly coupled ARM Cortex-M4 (with FPU and MPU) and Cortex-M0+ cores sharing a common 150 MHz clock domain and AHB interconnect, enabling asymmetric task partitioning - M4 handles signal processing and protocol stacks while M0+ manages low-latency I/O and power state transitions. Both cores feature independent NVICs and Serial Wire Debug interfaces.

Its peripheral subsystem includes three Fast-mode Plus I²C interfaces (1 Mbit/s master, 3.4 Mbit/s slave), four USARTs with fractional baud-rate generation and synchronous mode, two SPIs with four slave selects each, and a State-Configurable Timer supporting 13-state logic-driven PWM output routing - all accessible via 22-channel DMA with programmable triggers.

Key Specifications

Pinout & Package

Package: WLCSP49 (3.288 × 3.288 × 0.54 mm, 7×7 bump array). Ball pitch: 0.4 mm. Bottom-side marking per NXP specification: first line "LPC54102", second line "J256UK49", fourth line date code (yyww).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC54102J256UK49Z, the J512UK49Z offers double flash capacity in identical WLCSP49 packaging for seamless migration, while the LPC54606J512ET180K trades miniaturization for expanded connectivity - making it unsuitable for space-constrained sensor nodes but viable for infrastructure gateways.

Availability

LPC54102J256UK49Z is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, motor drive interface modules, and IoT edge gateways requiring stable component supply across extended product lifecycles.

Supply support for LPC54102J256UK49Z 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 LPC5410x series was designed specifically for space-constrained, low-power industrial edge devices requiring deterministic dual-core performance, robust peripheral wake-up, and long-term supply assurance - targeting sensor fusion, motor control, and protocol bridging.

FAQ

What is the maximum operating frequency of the LPC54102J256UK49Z?

The LPC54102J256UK49Z supports a maximum CPU frequency of 150 MHz for both the ARM Cortex-M4 and Cortex-M0+ cores. This frequency is achieved using the system PLL driven by the internal 12 MHz RC oscillator, external clock input (up to 25 MHz), or RTC oscillator. The cores share the same clock source and operate synchronously, ensuring deterministic inter-core timing critical for real-time control tasks in the LPC54102J256UK49Z.

Does the LPC54102J256UK49Z include a hardware floating-point unit?

Yes, the LPC54102J256UK49Z integrates a single-precision IEEE 754-compliant Floating Point Unit (FPU) within its ARM Cortex-M4 core. This FPU accelerates mathematical operations such as trigonometric functions, filtering, and sensor fusion algorithms - essential for real-time signal processing in applications like motor control or environmental monitoring where the LPC54102J256UK49Z is deployed.

How many analog input channels does the LPC54102J256UK49Z ADC support?

The LPC54102J256UK49Z features a 12-bit Analog-to-Digital Converter with 12 dedicated input channels (ADC0_0 through ADC0_11), mapped to GPIO pins PIO0_29 through PIO1_8. These channels support simultaneous sampling in two independent conversion sequences and deliver up to 5.0 million samples per second - enabling high-fidelity acquisition in applications such as power quality monitoring or audio preprocessing using the LPC54102J256UK49Z.

What package type is used for the LPC54102J256UK49Z?

The LPC54102J256UK49Z is supplied in a wafer-level chip-scale package (WLCSP49) measuring 3.288 mm × 3.288 mm × 0.54 mm with a 7×7 bump array and 0.4 mm pitch. This ultra-compact package supports high-density PCB layouts typical in wearable sensors and miniature industrial modules - distinguishing the LPC54102J256UK49Z from LQFP64 variants in the same family.

Can the LPC54102J256UK49Z wake up from deep power-down mode using I²C activity?

Yes, the LPC54102J256UK49Z supports wake-up from deep power-down mode via activity on any of its three Fast-mode Plus I²C-bus interfaces. When configured as a high-speed slave (3.4 Mbit/s), an I²C address match or START condition on the bus triggers a wake-up event - allowing external sensors or masters to resume the LPC54102J256UK49Z without continuous polling, thereby extending battery life in always-on edge devices.