Philips Semiconductors
Programmable 4-bit BCD down counter
APPLICATION INFORMATION
Some examples of applications for the HEF4522B are:
• Divide-by-n counter
• Programmable frequency divider
Product specification
HEF4522B
MSI
Counting cycle:
Fig.7 Typical application of two HEF4522B circuits in a 2-stage programmable down counter (one cycle). S are
thumbwheel switches; when open: LOW state.
January 1995
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