OVERVIEW

The CF5746 Series devices are analog clock ICs that derive their timing from a 32 kHz oscillator element.

They feature alarm outputs, snooze function and alarm auto-stop function. They can be configured to match a wide variety of clock specifications, alarm functions and motor outputs.

FEATURES

■ 32.768 kHz oscillator circuit

• Rf and Rd built-in

• Oscillator capacitance built-in

- CD = 30 pF (typ, excluding CF5746ADC)

- CD = 20 pF (typ, CF5746ADC)

■ Alarm outputs

• Compatible with electronic sound alarms and motor bells

• 4-step increasing volume alarm output (CF5746AAB, ADC, AEA, AFA (AO1), AGA (AO1))

■ Snooze function

• Temporarily stops alarm output and then restarts after a fixed time

■ Debouce circuit (AI/SNZ pin)

■ Test functions

• Shortening snooze time and auto-stop time

• Increasing motor speed (excluding CF5746BCA)

■ Power-ON clear function

■ 1.5 V supply voltage

■ Chip form