lpc1778 NXP Semiconductors, lpc1778 Datasheet - Page 3

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lpc1778

Manufacturer Part Number
lpc1778
Description
32-bit Arm Cortex-m3 Microcontroller; Up To 512 Kb Flash And 96 Kb Sram; Usb Device/host/otg; Ethernet; Lcd; Emc
Manufacturer
NXP Semiconductors
Datasheet

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NXP Semiconductors
LPC178x_7x
Objective data sheet
Digital peripherals:
Analog peripherals:
Power control:
Clock generation:
SD/MMC memory card interface.
Up to 165 General Purpose I/O (GPIO) pins depending on the packaging, with
configurable pull-up/down resistors, open-drain mode, and repeater mode. All
GPIOs are located on an AHB bus for fast access and support Cortex-M3
bit-banding. GPIOs can be accessed by the General Purpose DMA Controller. Any
pin of ports 0 and 2 can be used to generate an interrupt.
Two external interrupt inputs configurable as edge/level sensitive. All pins on
PORT0 and PORT2 can be used as edge sensitive interrupt sources.
Four general purpose timers/counters, with a total of eight capture inputs and ten
compare outputs. Each timer block has an external count input. Specific timer
events can be selected to generate DMA requests.
Quadrature encoder interface that can monitor one external quadrature encoder.
One standard PWM/timer block with external count input option.
Real-Time Clock (RTC) with a separate power domain. The RTC is clocked by a
dedicated RTC oscillator. The RTC block includes 20 bytes of battery-powered
backup registers, allowing system status to be stored when the rest of the chip is
powered off. Battery power can be supplied from a standard 3 V Lithium button cell.
The RTC will continue working when the battery voltage drops to as low as 2.1 V.
An RTC interrupt can wake up the CPU from any reduced power mode.
Windowed Watchdog Timer (WWDT). Windowed operation, dedicated internal
oscillator, watchdog warning interrupt, and safety features.
CRC Engine block can calculate a CRC on supplied data using one of three
standard polynomials. The CRC engine can be used in conjunction with the DMA
controller to generate a CRC without CPU involvement in the data transfer.
12-bit Analog-to-Digital Converter (ADC) with input multiplexing among eight pins,
conversion rates up to 400 kHz, and multiple result registers. The 12-bit ADC can
be used with the GPDMA controller.
10-bit Digital-to-Analog Converter (DAC) with dedicated conversion timer and DMA
support.
Four reduced power modes: Sleep, Deep-sleep, Power-down, and Deep
power-down.
The Wake-up Interrupt Controller (WIC) allows the CPU to automatically wake up
from any priority interrupt that can occur while the clocks are stopped in
Deep-sleep, Power-down, and Deep power-down modes.
Processor wake-up from Power-down mode via any interrupt able to operate
during Power-down mode (includes external interrupts, RTC interrupt, PORT0/2
pin interrupt, and NMI).
Brownout detect with separate threshold for interrupt and forced reset.
On-chip Power-On Reset (POR).
Clock output function that can reflect the main oscillator clock, IRC clock, RTC
clock, CPU clock, or the watchdog timer clock.
On-chip crystal oscillator with an operating range of 1 MHz to 25 MHz.
12 MHz Internal RC oscillator (IRC) trimmed to 1% accuracy that can optionally be
used as a system clock.
All information provided in this document is subject to legal disclaimers.
Rev. 00.04 — 8 July 2010
32-bit ARM Cortex-M3 microcontroller
LPC178x/7x
© NXP B.V. 2010. All rights reserved.
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