BU2305F

The BU2305 series are general-purpose ICs used in timers.The timer off time is based on the oscillation frequency that is determined by the external CR connected to the internal oscillator circuit.The BU2305F is ideal for applications such as asleep timers in radios and radios cassette players.When the timer set pin is low,oscillation begins.The timer is through the chatter prevention circuit,and the output is turned on and off repeatedly.The BU2305F belongs to BU2305 series.

Features of the BU2305F are:(1)low power consumption because of CMOS process;(2)wide operating voltage range of 1.8 to 6.0V;(3)output is Nch open drain;(4)oscillation frequency(time) can be set freely,using external CR.

The absolute maximum ratings of the BU2305F can be summarized as:(1):the parameter is output voltage,the symbol is VDD,the limits is -0.3 to 7.5,the unit is V;(2):the parameter is power supply voltage,the symbol is VOUT,the limits is -0.3 to 7.5,the unit is V;(3):the parameter is power dissipation,the symbol is PD,the limits is 500 (DIP`T8),the unit is mW;(4):the parameter is power dissipation,the symbol is PD,the limits is 350 (SOP8),the unit is mW;(5):the parameter is operating temperature,the symbol is Topr,the limits is -20 to 75,the unit is ;(6):the parameter is storage temperature,the symbol is TSTG,the limits is -50 to +150,the unit is .