The ACO-3.6864MHZ-EK is a half-size DIP low-voltage 5.0V crystal clock oscillator from the ACH series designed for microprocessor and digital circuit applications. It operates across a wide frequency range from 32.768 kHz to 200 MHz with an overall frequency stability of ±100 ppm and supports both HCMOS and TTL compatibility. The device features a tri-state enable/disable function, operates at a supply voltage of 4.5V to 5.5V (typical 5.0V), and is housed in a compact 12.7 × 12.7 × 5.6 mm package with hermetic sealing for moisture resistance. With maximum current consumption ranging from 30 mA to 85 mA depending on frequency, output duty cycle of 45–60%, and startup time of 1–10 ms, this oscillator is ideal for timing applications in digital systems requiring reliable clock generation with flexible enable/disable control.