Cortex-M0 at 50 MHz — what the clock buys you
The LPC1115FET48/303EL runs the ARM Cortex-M0 core at 50 MHz — enough throughput for a single-loop PID controller, a Modbus RTU poll cycle, or a keypad-and-LCD UI without a co-processor. The 64 KB Flash and 8 KB RAM keep firmware lean; if your application needs a USB stack or a TCP/IP offload, this isn't the part. For a dedicated control channel with I²C, SPI, and UART peripherals, the 50 MHz clock gives you headroom to keep the bus busy without stalling the core.
Lifecycle and sourcing
Status is Active per the manufacturer record. No NRND or last-time-buy notice on this code. That means the BOM line stays stable for the next production run; no urgency to stockpile or qualify a substitute. Sourced and quoted to order against an RFQ through independent distribution — availability and current pricing confirmed at quote time.
Peripherals and I/O count
42 general-purpose I/O lines, plus a 10-bit SAR ADC with 8 multiplexed channels. On-chip brown-out detect, POR, and watchdog cover the basic supervisory needs. Internal oscillator means you can skip the external crystal for non-critical timing — saves two pins and a couple of passives on the BOM.