基于ARMCortex-M0的低成本32位MCU，3路UART，32KFlash，8KRAM，12位ADC
Overview
The LPC1124JBD48 is a ARM Cortex-M0 based, low-cost 32-bit MCU, designed for 8/16-bit microcontroller applications, offering performance, low power, simple instruction set and memory addressing together with reduced code size compared to existing 8/16- bit architectures.
The LPC1124JBD48 operates at CPU frequencies of up to 50 MHz.
The peripheral complement of the LPC1124JBD48 includes 32 kB of flash memory, 8 kB of data memory, one Fast-mode Plus I2C-bus interface, three RS-485/EIA-485 UARTs, two SSP interfaces, four general purpose counter/timers, a 12-bit ADC, and up to 38 general purpose I/O pins.
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## Features
* System:
* ARM Cortex-M0 processor, running at frequencies of up to 50 MHz.
* ARM Cortex-M0 built-in Nested Vectored Interrupt Controller NVIC.
* Non-Maskable Interrupt NMI input selectable from several input sources.
* Serial Wire Debug.
* System tick timer.
* Memory:
* 32 kB on-chip flash programming memory.
* 256 byte page erase function.
* 8 kB SRAM.
* In-System Programming ISP and In-Application Programming IAP via on-chip bootloader software.
* Digital peripherals:
* Up to 38 General Purpose I/O GPIO pins with configurable pull-up/pull-down resistors. A configurable open-drain mode is supported.
* GPIO pins can be used as edge and level sensitive interrupt sources.
* High-current output driver 20 mA on one pin.
* High-current sink drivers 20 mA on two I2C-bus pins in Fast-mode Plus.
* Four general purpose counter/timers with up to six capture inputs and up to 13 match outputs.
* Programmable windowed WDT.
* Analog peripherals:
* 12-bit ADC with 2 Msamples/s and eight channels.
* Serial interfaces:
* Three UARTs with fractional baud rate generation, internal FIFO, and RS-485 support. One UART with modem control.
* Two SSP controllers with FIFO and multi-protocol capabilities.
* I²C-bus interface supporting full I2C-bus specification and Fast-mode Plus with a data rate of 1 Mbit/s with multiple address recognition and monitor mode.
* Clock generation:
* 12 MHz internal RC oscillator trimmed to 1 % accuracy for -25 °C ≤ Tamb ≤ +85 °C that can optionally be used as a system clock.
* Crystal oscillator with an operating range of 1 MHz to 25 MHz.
* Programmable watchdog oscillator with a frequency range of 9.4 kHz to 2.3 MHz.
* PLL allows CPU operation up to the maximum CPU rate without the need for a high-frequency crystal. May be run from the system oscillator or the internal RC oscillator.
* Clock output function with divider that can reflect the system oscillator clock, IRC clock, CPU clock, and the Watchdog clock.
* Power control:
* Integrated PMU Power Management Unit to minimize power consumption during Sleep, Deep-sleep, and Deep power-down modes.
* Power profiles residing in boot ROM allowing to optimize performance and minimize power consumption for any given application through one simple function call.
* Three reduced power modes: Sleep, Deep-sleep, and Deep power-down.
* Processor wake-up from Deep-sleep mode via a dedicated start logic using up to 13 of the functional pins.
* Power-On Reset POR.
* Brownout detect with up to four separate thresholds for interrupt and forced reset.
* Unique device serial number for identification.
* Single power supply 1.8 V to 3.6 V.
* Available as LQFP48 package.
## Target Applications
* eMetering
* Alarm systems
* Lighting
* White goods
## Features