The LPC-P1114 is a development board with an LPC1114FBD48/301 ARM Cortex-M0 microcontroller from NXP. This microcontroller supports various interfaces such as one Fast-mode Plus I2C-bus interface, one RS-485/EIA-485 UART, two SSP interfaces, four general-purpose timers, and a 10-bit ADC. The board features a universal expansion connector, Debug Interface, user buttons and LEDs. It can be powered via USB. (There is no USB functionality; it is used only for power.) LPC1114 Prototype Board Features - MCU: LPC1114 Cortex-M0, up to 50 MHz, 32 kB Flash, 8 kB SRAM, UART RS-485, two SSP, I2C/Fast+, ADC
- Power supply circuit
- Power-on LED
- Mini-USB connector (only for power input — no USB functionality)
- Debug interface — SWD (Serial Wire Debug)
- UEXT connector (see below)
- Eight user LEDs
- Two user buttons
- Reset button
- Prototype area
- FR-4, 1.5 mm, soldermask, component print
- Dimensions: 80 × 50mm (3.15 × 1.97")
Add-on UEXT Modules Available This board has a universal extension connector, UEXT, which allows you to add a peripheral module easily. The UEXT can provide I2C, RS232, SPI and power to the external device. Please see the UEXT Boards Category for a full list of modules that can plug into the UEXT port. LPC1114 Microcontroller Features - ARM Cortex-M0 processor, running at frequencies of up to 50 MHz
- ARM Cortex-M0 built-in Nested Vectored Interrupt Controller (NVIC)
- 32 kB on-chip Flash programming memory
- 8 kB SRAM
- In-System Programming (ISP) and In-Application Programming (IAP) via on-chip bootloader software
- UART with fractional baud rate generation, internal FIFO, and RS-485 support
- Two SSP controllers with FIFO and multi-protocol capabilities
- I2C-bus interface supporting full I2C-bus specification and Fastmode Plus with a data rate of 1 Mbit/s with multiple-address recognition and monitor mode
- 42 General-Purpose I/O (GPIO) pins with configurable pullup/pull-down resistors
- Four general-purpose timers/counters with a total of four capture inputs and 13 match outputs
- Programmable WatchDog Timer (WDT)
- System tick timer
- Serial Wire Debug
- High-current output driver (20 mA) on one pin
- High-current sink drivers (20 mA) on two I2C-bus pins in Fast-mode Plus
- Integrated PMU (Power Management Unit) to minimize power consumption during Sleep, Deep Sleep, and Deep Power-Down modes
- Single 3.3V power supply (2.0V to 3.6V)
- 10-bit ADC with input multiplexing among 8 pins
- GPIO pins can be used as edge- and level-sensitive interrupt sources
- Clock output function with divider that can reflect the system oscillator clock, IRC clock, CPU clock, and the Watchdog clock
- Processor wake-up from Deep Sleep mode via dedicated start logic using up to 13 of the functional pins
- Brownout detect with four separate thresholds for interrupt and one threshold for forced reset
- Power-On Reset (POR)
- Crystal oscillator with an operating range of 1 MHz to 25 MHz
- 12 MHz internal RC oscillator trimmed to 1% accuracy that can be used optionally as a system clock
- 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 watchdog oscillator
LPC1114 Prototype Board Resources
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