ECS ECS-2100x Clock Oscillators are 8-pin DIP clock oscillators that are compatible with HCMOS/TTL logic and offer low drain current. The ECS-2100x clock oscillators come in a metal package with pin 4 case ground that acts as a shielding to minimize radiation. These DIP clock oscillators operate from 1MHz to 150MHz frequency range and 0°C to 70°C temperature operating range.