The ATTINY1604-SSN is an 8-bit microcontroller manufactured by Microchip. It has a 20MHz clock frequency, 16KB of flash memory, SOIC14 package, 105C industrial temperature range, and is available in green color. It is designed for a wide variety of applications and provides flexibility and performance along with low-power options. Additionally, it comes in a vacuum sealed tube package. Some of the features of this microcontroller include I/O breakout, a wide range of peripherals, on-chip debug support, built-in interrupt controller, 16-bit Timer/Counters, up to five-speeds of High-Current GPIO and USART, and various analog features.