NXP Semiconductors LPC1115FET48/303Y

Overview

LPC1115FET48/303 from NXP Semiconductors is an ARM Cortex-M0 32-bit microcontroller in TFBGA48 package, operating up to 50 MHz with 64 kB flash, 8 kB SRAM, and integrated peripherals including UART, I²C-Fast+, dual SPI, 10-bit ADC (8-channel), and four timers. It targets cost-sensitive embedded control in lighting, eMetering, and alarm systems.

For engineers reviewing the LPC1115FET48/303 datasheet, LPC1115FET48/303 pinout, LPC1115FET48/303 application, or LPC1115FET48/303 equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options for industrial and consumer design-in.

Technical Context

The LPC1115FET48/303 implements the ARM Cortex-M0 core with NVIC and Serial Wire Debug, supporting deterministic interrupt handling and on-chip debug. Its clock system integrates a 12 MHz ±1 % internal RC oscillator, crystal oscillator (1–25 MHz), programmable watchdog oscillator (9.4 kHz–2.3 MHz), and PLL for CPU operation at full 50 MHz without external high-frequency crystals.

Power management includes Sleep, Deep-sleep, and Deep power-down modes managed by an integrated PMU; the LPC1100XL series adds power profiles in boot ROM and a windowed watchdog timer. GPIO supports configurable pull-up/pull-down, open-drain mode, edge/level interrupts, and high-current drive (20 mA) on select pins.

Key Specifications

Pinout & Package

Package: TFBGA48 - plastic thin fine-pitch ball grid array, 48 balls, 4.5 × 4.5 × 0.7 mm body, suitable for space-constrained PCB layouts with fine-pitch routing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit ARM Cortex-M0 microcontroller applications.

Compared with LPC1114FBD48/303, the LPC1115FET48/303 provides double flash capacity in a 4.5×4.5 mm footprint ideal for compact designs; versus LPC11U14FBD48/303, it trades USB for higher code storage and lower package height-critical for ultra-thin appliances and portable meters.

Availability

LPC1115FET48/303 is available at Aetrix Electronics and suitable for smart lighting control, eMetering, and home security systems requiring stable component supply across production lifecycles.

Supply support for LPC1115FET48/303 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 delivering secure, scalable solutions for automotive, industrial, IoT, and mobile applications.

The LPC1100XL series-including LPC1115FET48/303-is designed for cost-optimized, low-power embedded control in consumer and industrial equipment where small footprint, robust peripherals, and extended temperature operation (−40 °C to +85 °C) are essential.

FAQ

What is the maximum operating frequency of the LPC1115FET48/303?

The LPC1115FET48/303 operates at a maximum CPU frequency of 50 MHz. This is achieved using the on-chip PLL, which can be driven by either the internal 12 MHz ±1 % RC oscillator or an external crystal (1–25 MHz). The 50 MHz clock feeds the ARM Cortex-M0 core, timers, and peripheral bridges without requiring external high-frequency crystals.

Does the LPC1115FET48/303 support in-system programming (ISP)?

Yes, the LPC1115FET48/303 supports In-System Programming (ISP) via its built-in bootloader, accessible through UART. It also supports In-Application Programming (IAP), allowing firmware updates while the device is running. These capabilities are enabled by the 64 kB on-chip flash memory and require no external programming hardware beyond a standard UART interface.

What ADC resolution and channel count does the LPC1115FET48/303 provide?

The LPC1115FET48/303 integrates a 10-bit successive-approximation ADC with 8 multiplexed input channels (AD[7:0]), all accessible on the TFBGA48 package. Conversion is supported in burst mode with programmable sampling rates, and inputs can be configured for single-ended or differential measurement depending on application needs.

Is the LPC1115FET48/303 pin-compatible with other LPC11xx devices in TFBGA48?

No-LPC1115FET48/303 is not pin-compatible with earlier LPC11xx TFBGA48 variants such as LPC1113FET48/303 or LPC1114FET48/303. While all share the same TFBGA48 mechanical footprint, pin functions differ significantly across flash/SRAM variants due to differing peripheral mappings and ADC channel allocations. Always verify against the specific pin description table for LPC1115FET48/303 (Table 10, Figure 5).

What power-saving modes are available on the LPC1115FET48/303?

The LPC1115FET48/303 supports three low-power modes: Sleep (core stopped, peripherals active), Deep-sleep (core and most clocks stopped, RAM retained), and Deep power-down (full retention loss except for wake-up logic). In Deep-sleep, current draw is under 10 µA with selected GPIO pins configured as wake sources-enabling multi-year battery operation in sensor nodes and alarm panels.