DESCRIPTION
HCF4028B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology available in DIP and SOP packages. HCF4028B is a BCD to DECIMAL or BINARY to OCTAL decoder consisting of buffering on all 4 inputs, decoding logic gates, and 10 output buffers.
   
■ BCD TO DECIMAL DECODING OR BINARY
    TO OCTAL DECODING
■ HIGH DECODED OUTPUT DRIVE
    CAPABILITY
■ "POSITIVE LOGIC" INPUTS AND OUTPUTS:
    DECODED OUTPUTS GO HIGH ON
    SELECTION
■ MEDIUM SPEED OPERATION : tPHL, tPLH =
    80ns (Typ.) at VDD = 10V
■ QUIESCENT CURRENT SPECIF. UP TO 20V
■ STANDARDIZED SYMMETRICAL OUTPUT
    CHARACTERISTICS
■ INPUT LEAKAGE CURRENT
    II = 100nA (MAX) AT VDD = 18V TA = 25°C
■ 100% TESTED FOR QUIESCENT CURRENT
■ MEETS ALL REQUIREMENTS OF JEDEC
    JESD13B "STANDARD SPECIFICATIONS
    FOR DESCRIPTION OF B SERIES CMOS
    DEVICES"