Crystal 11.052M

A 11.0592 MHz quartz crystal, providing a far more accurate and stable clock reference than a microcontroller's internal RC oscillator. This odd-looking frequency is chosen deliberately: it divides exactly into standard serial baud rates such as 9600, 19200 and 115200 with zero error. On an 8051 or similar, a round number like 12 MHz produces baud rate errors that cause corrupted serial data. A crystal needs two small load capacitors to ground, typically 18-22 pF, to oscillate correctly - without them the circuit may not start or may run at the wrong frequency. Keep the tracks between crystal and microcontroller as short as possible. Far more accurate and stable than an internal RC oscillator; Essential for reliable serial communication timing; Low cost and extremely reliable; Standard through-hole package fits breadboards