The MC14028B decoder is constructed so that an 8421 BCD code on the four inputs provides a decimal (one−of−ten) decoded output, while a 3−bit binary input provides a decoded octal (one−of−eight) code output with D forced to a logic “0”. Expanded decoding such as binary−to−hexadecimal (one−of−sixteen), etc., can be achieved by using other MC14028B devices. The part is useful for code conversion, address decoding, memory selection control, demultiplexing, or readout decoding.

Features

• Diode Protection on All Inputs

• Supply Voltage Range = 3.0 Vdc to 18 Vdc

• Capable of Driving Two Low−power TTL Loads or One Low−Power Schottky TTL Load Over the Rated Temperature Range

• Positive Logic Design

• Low Outputs on All Illegal Input Combinations

• Similar to CD4028B

• Pb−Free Packages are Available*