CDP6872

CDP6872 January 1996 Low Power Crystal Oscillator Description The CDP6872 is a very low power crystal-controlled oscillators that can be externally programmed to operate between 10kHz and 10MHz. For normal operation it requires only the addition of a crystal. The part exhibits very high stability over a wide operating voltage and temperature range. The CDP6872 also features a disable mode that switches the output to a high impedance state. This feature is useful for minimizing power dissipation during standby and when multiple oscillator circuits are employed. Features Single Supply Operation at 32kHz . . . . . . . 2.0V to 7.0V Operating Frequency Range. . . . . . . . 10kHz to 10MHz Supply Current at 32kHz . . . . . . . . . . . . . . . . . . . . . .5µA Supply Current at 1MHz . . . . . . . . . . . . . . . . . . . .130µA Drives 2 CMOS Loads Only Requires an External Crystal for Operation Applications Battery Powered Circuits Remote Metering Embedded Microprocessors Ordering Information PART NUMBER TEMPERATURE RANGE -40oC to +85oC -40oC to +85oC -40oC to +85oC PACKAGE 8 Lead Plastic DIP 8 Lead Plastic SOIC (N) DIE CDP6872E Palm Top/Notebook PC CDP6872M CDP6872H Pinout CDP6872 (PDIP, SOIC) TOP VIEW Typical Application Circuit VDD 0.1µf VDD OSC IN OSC OUT VSS 1 2 3 4 8 7 6 5 ENABLE FREQ 2 FREQ 1 OUTPUT 32.768kHz CRYSTAL 1 2 CDP6872 3 4 8 7 6 5 32.768kHz CLOCK 32.768kHz MICROPOWER CLOCK OSCILLATOR CAUTION: These devices are sensitive to electrosta...