the aip74hc/hct42 is a one of ten bcd to decimal decoder. it accepts four bcd inputs (0a to 3a) and provides ten mutually exclusive outputs (0y to 9y). the logic design ensures that all outputs are high when binary codes greater than nine are applied to the inputs. the most significant input (3a) produces an useful inhibit function when the device is used as a 1-of-8 decoder. the 3a input can also be used as the data input in an 8-output demultiplexer application. inputs include clamp diodes. this enables the use of current limiting resistors to interface inputs to voltages in excess of vcc.
for aip74hc42: cmos level
for aip74hct42: ttl level
mutually exclusive outputs
1-of-8 demultiplexing capability
outputs disabled for input codes above nine
specified from -40℃ to 105℃
packaging information: dip16/sop16/tssop16