HCF4020B RIPPLE-CARRY BINARY COUNTER/DIVIDERS 14 STAGE MEDIUM SPEED OPERATION: 16MHz (Typ.) at V = 10V DD FULLY STATIC OPERATION COMMON RESET BUFFERED INPUTS AND OUTPUTS STANDARDIZED SYMMETRICAL OUTPUT DIP SOP CHARACTERISTICS QUIESCENT CURRENT SPECIFIED UP TO 20V 5V, 10V AND 15V PARAMETRIC RATINGS ORDER CODES INPUT LEAKAGE CURRENT PACKAGE TUBE T & R I = 100nA (MAX) AT V =18VT = 25C I DD A DIP HCF4020BEY 100% TESTED FOR QUIESCENT CURRENT SOP HCF4020BM1 HCF4020M013TR DESCRIPTION negative transition of each input pulse a high level HCF4020B is a monolithic integrated circuit on the RESET line resets the counter to its all fabricated in Metal Oxide Semiconductor zeros stage. Schmitt trigger action on the input technology available in DIP and SOP packages. pulse line permits unlimited clock rise and fall HCF4020B is a ripple carry binary counter. All times. counter stages are master-slave flip-flops. The All inputs and outputs are buffered. state of a counter advances one count on the PIN CONNECTION March 2004 1/11HCF4020B IINPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN N SYMBOL NAME AND FUNCTION 9, 7, 5, 4, 6, Q1, Q4 to 13, 12, 14, 14 Buffered Outputs Q14 15, 1, 2, 3 11 RESET Reset Input 10 Input Pulses 8 V Negative Supply Voltage SS V 16 Positive Supply Voltage DD FUNCTIONAL DIAGRAM TRUTH TABLE RESET OUTPUT STATE XH ALLOUTPUTS LNOCHANGE L ADVANCE TO NEXT STATE X : Dont Care LOGIC DIAGRAM 2/11