NXP Semiconductors LPC1114FBD48/301,1

Overview

LPC1114FBD48/301 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in LQFP48 package, operating at up to 50 MHz with 32 kB flash, 8 kB SRAM, one UART with RS-485 support, one Fast-mode Plus I²C-bus interface, two SPI controllers, four general-purpose timers, and a 10-bit ADC-designed for cost-sensitive industrial control and smart sensor node applications.

For engineers reviewing the LPC1114FBD48/301 datasheet, LPC1114FBD48/301 pinout, LPC1114FBD48/301 application, or LPC1114FBD48/301 equivalent, this page delivers verified electrical specs, validated LQFP48 pin mapping, confirmed low-power operation modes (Sleep/Deep-sleep/Deep power-down), and real-world substitution guidance for embedded firmware development and BOM optimization.

Technical Context

The LPC1114FBD48/301 implements an ARM Cortex-M0 core with NVIC and Serial Wire Debug, paired with a programmable PLL enabling CPU operation up to 50 MHz from internal RC or crystal sources. Its clock generation includes a 12 MHz ±1% IRC oscillator, crystal oscillator (1–25 MHz), and watchdog oscillator (9.4 kHz–2.3 MHz).

Digital peripherals include 42 GPIO pins with configurable pull-up/pull-down and edge/level interrupt capability, plus high-current drive (20 mA) on select pins. Analog functionality centers on an 8-channel 10-bit ADC multiplexed across dedicated pins in the LQFP48 package.

Key Specifications

Pinout & Package

LQFP48 package: plastic low-profile quad flat package, 48 leads, body size 7 × 7 × 1.4 mm, surface-mount compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC1114FBD48/301, the /302 variant adds certified power management and safety watchdog capabilities ideal for regulated environments, while the /323 variant trades raw cost for increased flash headroom and full LPC1100XL feature parity-making both viable alternatives depending on firmware complexity and compliance requirements.

Availability

LPC1114FBD48/301 is available at Aetrix Electronics and suitable for eMetering, lighting control, and alarm systems requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.

Supply support for LPC1114FBD48/301 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.

The LPC111x family was designed specifically for cost-sensitive 8/16-bit MCU replacement in industrial control, smart sensing, and human-machine interface applications-emphasizing low power, small footprint, and seamless toolchain integration.

FAQ

What is the maximum operating frequency of the LPC1114FBD48/301?

The LPC1114FBD48/301 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% IRC oscillator or an external crystal (1–25 MHz). The 50 MHz clock enables deterministic real-time processing for time-critical tasks such as motor control or sensor sampling without requiring external high-frequency oscillators.

Does the LPC1114FBD48/301 support In-Application Programming (IAP)?

Yes, the LPC1114FBD48/301 supports In-Application Programming (IAP) via its on-chip bootloader. This allows firmware updates to be performed dynamically during runtime using UART or I²C interfaces-enabling remote field upgrades without requiring JTAG or external programmers. IAP is fully supported in the LPC1114FBD48/301's ROM-based bootloader and requires no additional external memory.

How many ADC channels does the LPC1114FBD48/301 have, and what is their resolution?

The LPC1114FBD48/301 integrates a 10-bit successive approximation ADC with multiplexing across eight input channels (AD0–AD7), all physically available on the LQFP48 package. This provides 1024 discrete output levels with typical INL of ±1 LSB, making it suitable for precision analog measurements in eMetering, temperature monitoring, and white goods control applications.

What debug interface does the LPC1114FBD48/301 use, and is it compatible with standard tools?

The LPC1114FBD48/301 uses ARM Serial Wire Debug (SWD), a 2-pin interface (SWDIO and SWCLK) compatible with standard ARM Cortex-M debug probes including SEGGER J-Link, NXP LPC-Link 2, and CMSIS-DAP adapters. SWD supports full breakpoint control, memory inspection, register access, and real-time trace-enabling robust firmware development and validation without requiring costly proprietary debug hardware.

Is the LPC1114FBD48/301 pin-compatible with other members of the LPC111x family in LQFP48?

Yes, the LPC1114FBD48/301 shares identical pinout and package dimensions with all LQFP48 variants in the LPC111x family-including LPC1113FBD48/301, LPC1114FBD48/302, and LPC1115FBD48/303. Pin functions are consistent across these parts, allowing direct PCB reuse when migrating between flash sizes or feature sets, provided software accounts for differences in power profiles or peripheral enablement.