LPC546xx
NXP Semiconductors
32-bit ARM Cortex-M4 microcontroller
Watchdog Oscillator (WDTOSC) with a frequency range of 6 kHz to 1.5 MHz.
32.768 kHz low-power RTC oscillator.
System PLL allows CPU operation up to the maximum CPU rate and can run from
the main oscillator, the internal FRO, the watchdog oscillator or the 32.768 KHz
RTC oscillator.
Two additional PLLs for USB clock and audio subsystem.
Independent clocks for the SPIFI interface, ADC, USBs, and the audio subsystem.
Clock output function with divider.
Frequency measurement unit for measuring the frequency of any on-chip or
off-chip clock signal.
Power control:
Programmable PMU (Power Management Unit) to minimize power consumption
and to match requirements at different performance levels.
Reduced power modes: sleep, deep-sleep, and deep power-down.
Wake-up from deep-sleep modes due to activity on the USART, SPI, and I2C
peripherals when operating as slaves.
Ultra-low power Micro-tick Timer, running from the Watchdog oscillator that can be
used to wake up the device from low power modes.
Power-On Reset (POR).
Brown-Out Detect (BOD) with separate thresholds for interrupt and forced reset.
Single power supply 1.71 V to 3.6 V.
Power-On Reset (POR).
Brown-Out Detect (BOD) with separate thresholds for interrupt and forced reset.
JTAG boundary scan supported.
128 bit unique device serial number for identification.
Operating temperature range 40 °C to +105 °C.
Available in TFBGA180, TFBGA100, LQFP208, and LQFP100 packages.
LPC546xx
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© NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet
Rev. 2.5 — 20 June 2018
4 of 169
NXP [ NXP ]
