The LPC5411x are ARM Cortex-M4 based microcontrollers for embedded applications. These devices include an ARM Cortex-M0+ coprocessor, up to 192 KB of on-chip SRAM, up to 256 KB on-chip flash, full-speed USB device interface with Crystal-less operation, a DMIC subsystem with PDM microphone interface and I²S, five general-purpose timers, one SCTimer/PWM, one RTC/alarm timer, one 24-bit Multi-Rate Timer (MRT), a Windowed Watchdog Timer (WWDT), eight flexible serial communication peripherals (each of which can be a USART, SPI, or I²C interface), and one 12-bit 5.0 Msamples/sec ADC, and a temperature sensor. The ARM Cortex-M4 is a 32-bit core that offers system enhancements such as low power consumption, enhanced debug features, and a high level of support block integration. The ARM Cortex-M4 CPU incorporates a 3-stage pipeline, uses a Harvard architecture with separate local instruction and data buses as well as a third bus for peripherals, and includes an internal prefetch unit that supports speculative branching. The ARM Cortex-M4 supports single-cycle digital signal processing and SIMD instructions. A hardware floating-point unit is integrated in the core. The ARM Cortex-M0+ coprocessor is an energy-efficient and easy-to-use 32-bit core which is code and tool-compatible with the Cortex-M4 core. The Cortex-M0+ coprocessor offers up to 100 MHz performance with a simple instruction set and reduced code size.
Dual processor cores: ARM Cortex-M4 and ARM Cortex-M0+. Both cores operate up to a maximum frequency of 100 MHz.
ARM Cortex-M4 core (version r0p1)
ARM Cortex-M0+ core
ROM API support
DMIC subsystem including a dual-channel PDM microphone interface, flexible decimators, 16 entry FIFOs, optional DC locking, hardware voice activity detection, and the option to stream the processed output data to I²S.
Single power supply 1.62 V to 3.6 V.
JTAG boundary scan supported.
128 bit unique device serial number for identification.