ECS-327MVATX SMD MultiVolt™ Crystal Oscillators ECS ECS-327MVATX SMD MultiVolt™ Crystal Oscillators are miniature 32.768KHz oscillators with MultiVolt™ capability of 1.6V to 3.6V. These oscillators are available in five industry-standard packages. The ECS ECS-327MVATX SMD MultiVolt™ Crystal Oscillators operate at a low supply current of 200μA and offer an extended temperature range of -40°C to +85°C. These crystal oscillators are ideal for RTC, low-power/portable, industrial, and IoT applications.