Take a trip down memory lane and imagine, if you will, a system-on-a-chip with Apple IIe-like specs -- 4KB of RAM and 32KB of flash. Add some modern niceties like an ARM Cortex-M0+ 32-bit pipeline, 12-bit DAC, and low-power UART, and you have Freescale's recently unveiled
Kinetis KL02, which the company calls "the world's smallest ARM Powered MCU."