MC14553B: 3-Digit BCD Counter

Datasheet: 3-Digit BCD Counter Rev. 7 (100.0kB)

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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.

Features
TTL Compatible Outputs
On-Chip Oscillator
Cascadable
Clock Disable Input
Pulse Shaping Permits Very Slow Rise Times on Input Clock
Output Latches
Master Reset
Pb-Free Package is Available

Technical Information
Data Sheets (1)	Package Drawings (1)