NXP Semiconductors LPC54102J512UK49Z

Overview

LPC54102J512UK49Z from NXP Semiconductors is a dual-core ARM Cortex-M4/M0+ microcontroller with 512 kB flash, 104 kB SRAM, and integrated peripherals including a 12-bit 5.0 Msamples/sec ADC, SCTimer/PWM, RTC, and three Fast-mode Plus I²C interfaces. It targets low-power industrial control, sensor fusion, and real-time motor control applications requiring deterministic dual-core coordination.

For engineers reviewing the LPC54102J512UK49Z datasheet, LPC54102J512UK49Z pinout, LPC54102J512UK49Z application, or LPC54102J512UK49Z equivalent, key selection criteria include dual-core clock synchronization at up to 150 MHz, WLCSP49 package footprint constraints, 39 GPIO availability, and hardware support for simultaneous USART/SPI/I²C wake-up from deep power-down modes.

Technical Context

The LPC54102J512UK49Z 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-e.g., M4 handles signal processing while M0+ manages peripheral offload and low-latency I/O. Its memory subsystem includes 64 kB + 32 kB + 8 kB SRAM banks with AHB access and 512 kB flash with accelerator and 256-byte page erase.

Peripherals are routed via a multilayer AHB matrix and dual APB bridges, supporting concurrent DMA transfers across UARTs, SPIs, I²C, ADC, and SCTimer. The State-Configurable Timer (SCT) provides 8 configurable inputs/outputs with internal routing to 13 events/states, enabling complex PWM waveform generation without CPU intervention.

Key Specifications

Pinout & Package

Package: WLCSP49 wafer-level chip-scale package (3.288 × 3.288 × 0.54 mm, 7×7 bump array, bottom-side ball layout).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC54606J512ET100 and LPC55S16JBD64, the LPC54102J512UK49Z uniquely balances ultra-compact WLCSP49 packaging, deterministic dual-core execution, and high-speed ADC performance-making it optimal for size- and latency-sensitive embedded systems where peripheral offload and minimal power consumption are critical.

Availability

LPC54102J512UK49Z is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, medical wearables, and PLC I/O modules requiring stable component supply and long-term manufacturability.

Supply support for LPC54102J512UK49Z 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 LPC5410x product line was designed for resource-constrained, low-power embedded systems demanding real-time responsiveness, dual-core flexibility, and high-integration analog/mixed-signal capability-targeting industrial automation, medical devices, and intelligent sensing.

FAQ

What is the maximum operating frequency of the LPC54102J512UK49Z?

The LPC54102J512UK49Z supports a maximum CPU clock 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 CLKIN (up to 25 MHz), or RTC oscillator. All peripherals-including ADC, SCTimer, and USARTs-are fully functional at this rate, with timing margins verified across the −40 °C to +105 °C temperature range.

Does the LPC54102J512UK49Z support hardware floating-point operations?

Yes, the LPC54102J512UK49Z integrates a full IEEE 754-compliant single-precision Floating-Point Unit (FPU) within its ARM Cortex-M4 core. This enables efficient execution of trigonometric, exponential, and DSP-intensive calculations without software emulation-critical for real-time motor control algorithms and sensor fusion running on the M4 core.

How many ADC channels does the LPC54102J512UK49Z provide, and what is their sampling capability?

The LPC54102J512UK49Z features a 12-bit Analog-to-Digital Converter with 12 input channels (ADC0_0 through ADC0_11), capable of 5.0 million samples per second. It supports two independent conversion sequences, allowing concurrent sampling of different channel groups-for example, capturing voltage and current simultaneously in motor control applications.

What package type is used for the LPC54102J512UK49Z, and how many I/O pins are accessible?

The LPC54102J512UK49Z uses a 3.288 × 3.288 mm WLCSP49 package with a 7×7 bump array. It provides 39 general-purpose I/O pins (GPIO), all configurable with pull-up/pull-down resistors, open-drain mode, and input inversion. These pins support multiple alternate functions including USART, SPI, I²C, timer capture/match, SCT outputs, and ADC inputs.

Can the LPC54102J512UK49Z wake up from deep power-down mode using peripheral activity?

Yes, the LPC54102J512UK49Z can wake up from deep power-down mode via activity on USART, SPI, or I²C peripherals-each configured as a wake-up source in the PMU registers. Additionally, the RTC alarm can trigger wake-up from all low-power modes, including deep power-down, with 1 ms resolution, enabling precise time-based scheduling in battery-operated applications.