This manual describes the features of the LPC2131/32/34/36/38 microcontrollers, including the architecture, functional modules, and usage instructions.
This manual introduces the LPC213x series of 16/32‑bit ARM7TDMI‑S microcontrollers, describing their core CPU, on‑chip Flash and SRAM, ADC/DAC, timers, PWM, GPIO and a variety of serial interfaces. It highlights typical applications such as industrial control, medical systems, access control and point‑of‑sale devices.
The document also provides an architectural overview, memory map, block diagrams, and detailed information on programming interfaces, flash boot loader, watchdog timer, and debugging features like EmbeddedICE and RealMonitor. Supplementary sections cover peripheral registers, prescaler usage, and additional reference material.
| CPU core | ARM7TDMI‑S (16/32‑bit) |
|---|---|
| Flash memory | 32 kB – 512 kB (depending on model) |
| SRAM | 8 kB – 32 kB (depending on model) |
| GPIO pins | Up to 47 I/O pins |
| Maximum CPU clock | 60 MHz |
The LPC213x can run at up to 60 MHz.
The device offers up to 47 5 V‑tolerant GPIO pins.