ARM Cortex-M0 processor, operating frequency up to 50MHz ARM Cortex-M0 processor, built-in Nested Vectored Interrupt Controller (NVIC) Serial Wire Debug (SWD, Serial Wire Debug) System tick timer 32kB (LPC1114), 24kB (LPC1113), 16kB (LPC1112) or 8kB (LPC1111) of on-chip Flash program memory 8kB, 4kB or 2kB of Static Random Access Memory SRAM In-System Programming (ISP) and In-Application Programming (IAP) implemented via on-chip Bootloader software Up to 42 General Purpose I/O pins (GPIO, General Purpose I/O), with configurable pull-up and pull-down resistors GPIO pins can be used as edge or level-triggered interrupt sources Maximum current output drive capability of 20mA per pin Maximum sink current of 20mA for I2C bus pins in Fast-mode Plus mode 4 general-purpose timers/counters, with a total of 4 capture inputs and 13 match outputs Programmable Watchdog Timer (WDT) 10-bit ADC, implementing input multiplexing across 8 pins UART with fractional baud rate generator, internal FIFO, and RS-485 mode support 2 SPI controllers supporting SSP functionality, with FIFO and multi-protocol features (only LQFP48 and PLCC44 packages have two SPI interfaces) I2C bus interface supports the full I2C bus specification and Fast-mode Plus mode, with data rates up to 1Mbit/s, multi-address recognition, and monitoring mode 12MHz internal RC (IRC) oscillator, accuracy adjusted to 1%, usable as system clock Crystal oscillator operating range of 1MHz to 25MHz Programmable watchdog oscillator, frequency range of 7.8kHz to 1.8MHz Phase-locked loops (PLL) allow the CPU to operate at maximum CPU speed without a high-frequency crystal. The clock can be provided by the system oscillator or the internal RC oscillator Clock output function with dividers, connectable to the main oscillator clock, IRC clock, CPU clock, and watchdog clock Integrated Power Management Unit (PMU) minimizes power consumption in Sleep, Deep-sleep, and Deep-power-down modes Power Profile power optimization feature in the boot ROM allows performance optimization and power minimization in a given application by calling simple functions (this feature is limited to LPC1100L series products: LPC111x/102/202/302) 3 power-saving modes: Sleep, Deep-sleep, and Deep-power-down The processor can be woken up from Deep-sleep mode via dedicated Start Logic, which can be triggered by up to 13 functional pins Power-On Reset (POR) Brown-Out Detection (BOD), supporting four independent thresholds, capable of generating interrupts and forced resets Unique device serial number Single power supply (1.8V to 3.6V) Available in LQFP48, PLCC44, and HVQFN33 package options