NXP Semiconductors LPC1114FBD48/303EL

Overview

LPC1114FBD48/303EL from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in LQFP48 package, operating up to 50 MHz with 32 kB flash, 8 kB SRAM, one UART with RS-485 support, one I²C-bus interface (Fast-mode Plus), two SPI controllers, four timers, and a 10-bit ADC-designed for low-power embedded control in lighting and alarm systems.

For engineers reviewing the LPC1114FBD48/303EL datasheet, LPC1114FBD48/303EL pinout, LPC1114FBD48/303EL application, or LPC1114FBD48/303EL equivalent, this page delivers verified technical context, package-specific pin roles, real-world use cases, and validated alternative options aligned with LPC1100XL series specifications.

Technical Context

The LPC1114FBD48/303EL belongs to the LPC1100XL series, featuring a windowed watchdog timer (WWDT), power profiles in boot ROM for runtime power/performance tuning, and configurable open-drain GPIO mode. It supports fractional baud rate generation in UART and Fast-mode Plus I²C at 1 Mbit/s.

Its clock system includes a 12 MHz internal RC oscillator trimmed to ±1 %, crystal oscillator (1–25 MHz), programmable watchdog oscillator (9.4 kHz–2.3 MHz), and PLL for CPU operation up to 50 MHz. The device operates from a single 1.8 V–3.6 V supply and supports Sleep, Deep-sleep, and Deep power-down modes.

Key Specifications

Pinout & Package

LQFP48 package: plastic low-profile quad flat package with 48 leads, 7 mm × 7 mm body, 1.4 mm height, and 0.5 mm lead pitch. Thermal performance optimized for industrial ambient conditions (−40 °C to +85 °C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC1114FBD48/303EL, both alternatives retain identical timing, power, GPIO, and peripheral behavior-but offer increased flash capacity (48 kB and 56 kB) to accommodate larger firmware images, cryptographic libraries, or field-upgradable feature sets while maintaining full pin and software compatibility.

Availability

LPC1114FBD48/303EL is available at Aetrix Electronics and suitable for smart lighting control, industrial alarm panels, energy metering interfaces, and white goods UI controllers requiring stable component supply across production lifecycles.

Supply support for LPC1114FBD48/303EL 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The LPC1100XL series-including LPC1114FBD48/303EL-is designed for cost-sensitive, low-power embedded control in consumer and industrial equipment, emphasizing energy efficiency, debug accessibility, and peripheral integration for rapid product development.

FAQ

What is the maximum operating frequency of the LPC1114FBD48/303EL?

The LPC1114FBD48/303EL 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 RC oscillator (trimmed to ±1 %) or an external crystal (1–25 MHz). The 50 MHz clock feeds the ARM Cortex-M0 core, timers, and peripheral bridges, enabling deterministic real-time response in lighting and alarm applications.

Does the LPC1114FBD48/303EL support I²C Fast-mode Plus?

Yes, the LPC1114FBD48/303EL supports I²C Fast-mode Plus with a data rate of up to 1 Mbit/s. This capability is confirmed for the LPC1100XL series, and the device includes multi-address recognition and monitor mode. The SCL and SDA pins (PIO0_4 and PIO0_5) provide 20 mA sink current, enhancing noise immunity and bus drive strength for industrial environments.

How much flash and SRAM does the LPC1114FBD48/303EL have?

The LPC1114FBD48/303EL integrates 32 kB of on-chip flash memory and 8 kB of SRAM. Flash supports In-System Programming (ISP) and In-Application Programming (IAP) via the on-chip bootloader, while SRAM is used for variables, stack, and heap. Both memory blocks are accessible over the AHB-Lite bus, ensuring low-latency access for real-time control tasks.

What package type and pin count does the LPC1114FBD48/303EL use?

The LPC1114FBD48/303EL uses an LQFP48 package: a plastic low-profile quad flat package with 48 leads, 7 mm × 7 mm body size, 1.4 mm height, and 0.5 mm lead pitch. This package is RoHS-compliant and rated for industrial temperature range (−40 °C to +85 °C), making it suitable for reflow assembly and high-reliability embedded applications.

Is the LPC1114FBD48/303EL part of the LPC1100XL series, and what does that mean?

Yes, the LPC1114FBD48/303EL belongs to the LPC1100XL series. This designation confirms inclusion of advanced features not present in base LPC1100 or LPC1100L variants: windowed watchdog timer (WWDT), power profiles in boot ROM, and dual SPI interfaces. These features directly support functional safety and dynamic power management in certified industrial and metering applications.