UM10360 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
User manual Rev. 3 — 19 December 2013 7 of 841
NXP Semiconductors
UM10360
Chapter 1: LPC176x/5x Introductory information
• Processor wake-up from Power-down mode via any interrupt able to operate during
Power-down mode (includes external interrupts, RTC interrupt, USB activity, Ethernet
wake-up interrupt, CAN bus activity, PORT0/2 pin interrupt, and NMI).
• Each peripheral has its own clock divider for further power savings.
• Brownout detect with separate threshold for interrupt and forced reset.
• On-chip Power-On Reset (POR).
• On-chip crystal oscillator with an operating range of 1 MHz to 25 MHz.
• 4 MHz internal RC oscillator trimmed to 1% accuracy that can optionally be used as a
system clock.
• An on-chip PLL allows CPU operation up to the maximum CPU rate without the need
for a high-frequency crystal. May be run from the main oscillator, the internal RC
oscillator, or the RTC oscillator.
• A second, dedicated PLL may be used for the USB interface in order to allow added
flexibility for the Main PLL settings.
• Versatile pin function selection feature allows many possibilities for using on-chip
peripheral functions.
• Available as 100-pin LQFP (14 x 14 x 1.4 mm) and 80-pin LQFP (12 x 12 x 1.4 mm)
packages.
1.3 Applications
• eMetering
• Lighting
• Industrial networking
• Alarm systems
• White goods
• Motor control
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