ECS ECS-327MV SMD MultiVolt™ Crystal Oscillators are miniature AT-cut 32.768kHz CMOS oscillators with a 1.6V to 3.63V supply voltage range. The 1.6mm x 1.2mm x 0.7mm ceramic package is ideal for use in LoRa WAN, low power/portable, industrial, and Internet of Things (IoT) applications. ECS ECS-327MV SMD MultiVolt Crystal Oscillators are low-current devices that operate over a -40°C to +85°C extended temperature range.