Maxim's DS1088L is a low-cost clock generator that produces a square-wave output without external timing components. The fixed-frequency oscillator is available in factory-calibrated frequencies from 312 kHz to 133 MHz. The DS1088L has a power-down pin for power-sensitive applications.

The internal oscillator frequency is divided by the factory programmed prescaler to produce an output frequency of 312 kHz to 133 MHz. The power-down pin must remain low for at least two output frequency cycles plus 10 μs for deglitching purposes. On power-up, the output is disabled until power is stable and the voltage-controlled oscillator has generated 512 clock cycles.