The ETXO7500I-12.288MHz-A from Dynamic Engineers is a General Crystal Oscillator with Frequency 12.288 MHz, Supply Voltage 3.3 V, Current 1.1 mA, Load Capacitance 15 pF, Duty Cycle 45 to 55 %. Tags: Surface Mount. More details for ETXO7500I-12.288MHz-A can be seen below.