HCC4028B Datasheet, PDF (6/14 Pages) STMicroelectronics – BCD-TO-DECIMAL DECODER

HCC/HCF4028B
Typical Propagation Delay Time as a Function load
Capacitance.
Typical Dynamic Power Dissipation as a Function of
Input Frequency .
TYPICAL APPLICATIONS
The circuit shown in fig. 1 converts any 4-bit code to
a decimal or hexadecimal code Fig 2 shows a num-
ber of codes and the decimal or hexadecimal num-
ber in these codes which must be applied to the
input pins of the HCC/HCF4028B to select a particu-
Figure 1 : Code Conversion Circuit.
lar output. For example : in order to get a ”high” on
output n8 the input must be either an 8 expressed
in 4-bit binary code, a 15 expressed in 4-bit gray
code, or a 5 expressed in excess-3code.
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