STANDARD CLOCK OSCILLATORS OSC XO 66.666MHZ HCMOS TTL PC ECS-2200 XO (STANDARD) 66.666MHZ ENABLE/DISABLE HCMOS, TTL 5V +/-50PPM 0C - 70C 77MA THROUGH HOLE 0.520" L X 0.520" W (13.20MM X 13.20MM) 0.213" (5.40MM) 8-DIP, 4 LEADS (HALF SIZE, METAL CAN)