HCF4028B

n BCD TO DECIMAL DECODING OR BINARY TO OCTAL DECODING
n HIGH DECODED OUTPUT DRIVE CAPABILITY
n "POSITIVE LOGIC" INPUTS AND OUTPUTS:DECODED OUTPUTS GO HIGH ON SELECTION
n MEDIUM SPEED OPERATION : tPHL, t_PLH =80ns (Typ.) at V_DD = 10V
n  QUIESCENT CURRENT SPECIF. UP TO 20V
n STANDARDIZED SYMMETRICAL OUTPUT CHARACTERISTICS
n INPUT LEAKAGE CURRENT II = 100nA (MAX) AT V_DD = 18V T_A = 25°C
n 100% TESTED FOR QUIESCENT CURRENT
n MEETS ALL REQUIREMENTS OF JEDEC JESD13B "STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES"

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied.
All voltage values are referred to V_SS pin voltage.

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 nputs, decoding logic gates, and 10 output buffers.

A BCD code applied to the four inputs, A to D, results in a high level at the selected one of 10 decimal decoded outputs. Similarly, a 3-bit binary code applied to inputs A through C is decoded in octal code at output 0 to 7 if D = "0". High drive capability is provided at all outputs of HCF4028B to enhance dc and dynamic performance in high fan-out applications.