General description

The LPC11D14 is a ARM Cortex-M0 based, low-cost 32-bit MCU family, 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 LPC11D14 is a dual-chip module consisting of a LPC1114 single-chip microcontroller

combined with a PCF8576D Universal LCD driver in a low-cost 100-pin package. The

LCD driver provides 40 segments and supports from one to four backplanes. Display

overhead is minimized by an on-chip display RAM with auto-increment addressing.

The LPC11D14 operates at CPU frequencies of up to 50 MHz.

The peripheral complement of the LPC11D14 includes 32 kB of flash memory, 8 kB of

data memory, one Fast-mode Plus I2C-bus interface, one RS-485/EIA-485 UART, up to

two SPI interfaces with SSP features, four general purpose counter/timers, a 10-bit ADC,

and up to 42 general purpose I/O pins.

Remark: For a functional description of the LPC1114 microcontroller see the

LPC1111/12/13/14 data sheet. For a detailed description of the LCD driver see the

PCF8576D data sheet. Both data sheets are available on the NXP web site.

Features and benefits

 LCD driver

 40 segments.

 One to four backplanes.

 On-chip display RAM with auto-increment addressing.

 System:

 ARM Cortex-M0 processor, running at frequencies of up to 50 MHz.

 ARM Cortex-M0 built-in Nested Vectored Interrupt Controller (NVIC).

 Serial Wire Debug.

 System tick timer.

 Memory:

 32 kB on-chip flash programming memory.

 8 kB SRAM.

 In-System Programming (ISP) and In-Application Programming (IAP) via on-chip

bootloader software.

 Digital peripherals:

 42 General Purpose I/O (GPIO) pins with configurable pull-up/pull-down resistors.

In addition, 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 a total of four capture inputs and 13

match outputs.

 Programmable windowed WatchDog Timer (WDT).

 Analog peripherals:

 10-bit ADC with input multiplexing among 8 pins.

 Serial interfaces:

 UART with fractional baud rate generation, internal FIFO, and RS-485 support.

 Two SPI controllers with SSP features and 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 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 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 100-pin LQFP100 package.