3-Digit BCD Counter

The MC14553B 3-digit BCD Counter consists of 3 negative edge triggered BCD Counters that are cascaded synchronously. A quad latch at the output of each Counter permits storage of any given count. The information is then time division multiplexed, providing one BCD number or digit at a time. Digit select outputs provide Display control. All outputs are TTL compatible. An on-chip Oscillator provides the low-frequency scanning Clock which drives the multiplexer output selector. This device is used in instrumentation Counters Clock Displays digital panel meters, and as a building block for general Logic applications.
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MC14553B 's PackagesMC14553B 's pdf datasheet

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MC14553B Application circuits
MC14553B circuits
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