General description
The LPC84x are an Arm Cortex-M0+ based, low-cost 32-bit MCU family operating at CPU
frequencies of up to 30 MHz. The LPC84x support up to 64 KB of flash memory and
16 KB of SRAM.
The peripheral complement of the LPC84x includes a CRC engine, four I2C-bus
interfaces, up to five USARTs, up to two SPI interfaces, Capacitive Touch Interface, one
multi-rate timer, self-wake-up timer, SCTimer/PWM, one general purpose 32-bit
counter/timer, a DMA, one 12-bit ADC, two 10-bit DACs, one analog comparator,
function-configurable I/O ports through a switch matrix, an input pattern match engine,
and up to 54 general-purpose I/O pins.
For additional documentation related to the LPC84x parts, see Section 18.
Features and benefits
 System:
 Arm Cortex-M0+ processor (revision r0p1), running at frequencies of up to 30 MHz
with single-cycle multiplier and fast single-cycle I/O port.
 Arm Cortex-M0+ built-in Nested Vectored Interrupt Controller (NVIC).
 System tick timer.
 AHB multilayer matrix.
 Serial Wire Debug (SWD) with four break points and two watch points. JTAG
boundary scan (BSDL) supported.
 Micro Trace Buffer (MTB).
 Memory:
 Up to 64 KB on-chip flash programming memory with 64 Byte page write and
erase.
 Fast Initialization Memory (FAIM) allowing the user to configure chip behavior on
power-up.
 Code Read Protection (CRP)
 Up to 16 KB SRAM consisting of two 8 KB contiguous SRAM banks. One 8 KB of
SRAM can be used for MTB.
 Bit-band addressing supported to permit atomic operations to modify a single bit.
 ROM API support:
 Boot loader.
 Supports Flash In-Application Programming (IAP).
Applications
 Sensor gateways  Simple motor control
 Industrial  Portables and wearables
 Gaming controllers  Lighting
 8/16-bit applications  Motor control
 Consumer  Fire and security applications
 Climate control