50 MHz Cortex-M0 with 48 KB Flash — what it means for the control loop
The NXP LPC1114FBD48/323J is a 32-bit ARM Cortex-M0 MCU from the LPC1100XL series, clocked at 50 MHz and built around a single-core architecture. It packs 48 KB of Flash program memory and 8 KB of RAM — enough for modest firmware stacks, sensor fusion, or simple HMI logic. The 42 general-purpose I/O lines and integrated I²C, SPI, and UART/USART interfaces cover most board-level communication needs without external transceivers.
Industrial temperature range and on-chip peripherals
Rated for -40 to 85 °C, this MCU fits industrial environments — factory automation, outdoor telecom, or engine-bay control modules. The internal oscillator eliminates an external crystal for basic timing, while the brown-out detect, POR, and watchdog timer provide supervised startup and fault recovery. An 8-channel 10-bit ADC samples analog signals directly, saving a separate converter.
Supply range and package
Operates from 1.8 V to 3.6 V. The 48-LQFP package (7x7 mm) is a common footprint for medium-density MCUs, easy to route on a two-layer board.
Lifecycle and sourcing
The LPC1114FBD48/323J carries an active lifecycle status, meaning NXP continues to manufacture it. For BOM planning, this part is sourced and quoted to order against an RFQ through independent distribution — availability and current pricing confirmed at quote time.