A one-pin crystal oscillator for VLSI circuits

The oscillator features the same stability, reliability, and ease of use as the common Pierce oscillator; however, only one package pin and no external components other than the crystal need be dedicated to the oscillator. The design is quite general, and may be implemented in either NMOS or CMOS technologies, using only a moderate amount of silicon area. Design examples are given, and the fabrication results are presented.