MC145447DW

The MC145447DW is designed as one kind of programmable timer that consists of a 16stage binary counter, an integrated oscillator for use with an external capacitor and two resistors, an automatic power on reset circuit, and output control logic.

Features of the MC145447DW are:(1)automatic reset initializes all counters on power up; (2)clock conditioning circuit permits operation with very slow clock rise and fall times; (3)reset (auto or master) disables oscillator during resetting to provide no active power dissipation; (4)Q/Q select provides output logic level flexibility; (5)operates as frequency divider or single transition timer; (6)external master reset totally independent of automatic reset operation; (7)increments on positive edge clock transitions; (8)built-in low power RC oscillator (+/- 2% accuracy over temperature range and +/- 20% supply and +/- 3% over processing at < 10 kHz); (9)oscillator may be bypassed if external clock is available (apply external clock to pin 3).

The absolute maximum ratings of the MC145447DW can be summarized as:(1)DC Supply Voltage: -0.5 to +18.0 V;(2)Input or Output Voltage (DC or Transient): 0.5 to VDD+0.5 V;(3)Input Current (DC or Transient), per Pin: +/- 10 mA;(4)Output Current (DC or Transient), per Pin: +/-45 mA;(5)Power Dissipation, per Package: 500 mW;(6)Storage Temperature: -65 to + 150 ;(7)Lead Temperature (8Second Soldering): 260 . If you want to know more information about it, please download the datasheet in www.seekic.com or www.chinaicmart.com .