NXP Semiconductors LPC1114FBD48/333,1

Overview

LPC1114FBD48/333 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in LQFP48 package, operating at up to 50 MHz with 56 kB flash, 8 kB SRAM, and integrated UART (RS-485), dual SPI, Fast-mode Plus I²C, 10-bit ADC (8 channels), and four general-purpose timers. It targets low-power industrial control and sensor interface applications requiring robust peripheral integration and in-application programming.

For engineers reviewing the LPC1114FBD48/333 datasheet, LPC1114FBD48/333 pinout, LPC1114FBD48/333 application, or LPC1114FBD48/333 equivalent, key selection criteria include flash size (56 kB), XL-series power profiles, 42 GPIO availability in LQFP48, and support for page-erase In-Application Programming (IAP).

Technical Context

The LPC1114FBD48/333 belongs to the LPC1100XL series, featuring enhanced power management with programmable power profiles stored in boot ROM, enabling optimized active/sleep trade-offs via single-function calls. Its clock system integrates a 12 MHz ±1% internal RC oscillator, crystal oscillator (1–25 MHz), PLL, and watchdog oscillator (7.8 kHz–1.8 MHz).

It implements ARM Cortex-M0 core with NVIC, Serial Wire Debug, and system tick timer. Peripheral set includes two SSP/SPI controllers (second available only on LQFP48), full I²C Fast-mode Plus (1 Mbit/s), UART with fractional baud rate generation and RS-485 support, and 10-bit ADC with multiplexed inputs across up to eight pins.

Key Specifications

Pinout & Package

LPC1114FBD48/333 is housed in a 48-pin LQFP package (7 × 7 × 1.4 mm body, SOT313-2), with all 42 GPIOs, peripherals, and power/ground pins fully accessible on standard 0.5 mm pitch pads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC1114FBD48/303 and LPC1114FBD48/323, the LPC1114FBD48/333 offers the largest flash capacity in the LQFP48 package, enabling complex bootloader architectures, cryptographic libraries, and future-proof firmware scalability - critical for certified industrial products with multi-year lifecycles.

Availability

LPC1114FBD48/333 is available at Aetrix Electronics and suitable for industrial automation, smart building controls, and appliance electronics requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for LPC1114FBD48/333 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 broad MCU, RF, and security IP portfolios.

The LPC111x family was designed specifically for cost-sensitive, low-power 8/16-bit replacement applications - delivering ARM Cortex-M0 performance, rich analog/digital peripherals, and energy-efficient operation in compact packages.

FAQ

What is the maximum operating frequency of the LPC1114FBD48/333?

The LPC1114FBD48/333 operates at a maximum CPU frequency of 50 MHz, achievable using the on-chip PLL driven by either the internal 12 MHz RC oscillator or an external crystal (1–25 MHz). This frequency enables deterministic real-time response for control loops and communication stacks while maintaining low dynamic power consumption.

Does the LPC1114FBD48/333 support in-application programming (IAP)?

Yes, the LPC1114FBD48/333 supports page-erase In-Application Programming (IAP) as part of the LPC1100XL series feature set. This allows firmware updates to be performed without erasing the entire flash, preserving bootloader, calibration data, and configuration parameters stored in protected sectors during field upgrades.

How many GPIO pins are available on the LPC1114FBD48/333?

The LPC1114FBD48/333 provides 42 general-purpose I/O pins in its LQFP48 package - the highest GPIO count among LPC111x variants. All pins support configurable pull-up/pull-down resistors and can serve as edge- or level-sensitive interrupt sources, enabling direct connection to buttons, sensors, and discrete actuators.

What ADC resolution and channel count does the LPC1114FBD48/333 offer?

The LPC1114FBD48/333 integrates a 10-bit successive-approximation ADC with up to 8 input channels (AD0–AD7), accessible on dedicated pins in the LQFP48 package. The ADC supports single-shot and burst conversion modes, with typical INL of ±1 LSB, making it suitable for precision analog sensing in industrial and consumer applications.

Is the LPC1114FBD48/333 pin-compatible with other LPC1114 variants in LQFP48?

Yes, all LPC1114 variants in LQFP48 package - including LPC1114FBD48/303, /323, and /333 - share identical pinouts and electrical characteristics. Differences are limited to flash size (32 kB, 48 kB, 56 kB) and series features (e.g., power profile support), allowing drop-in replacement during design iteration or cost optimization.