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MC14553B Datasheet - ON Semiconductor

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Datasheet Details

Part number:

MC14553B

Manufacturer:

ON Semiconductor ↗

File Size:

178.87 KB

Description:

3-digit bcd counter.

MC14553B, 3-Digit BCD Counter

MC14553B 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

MC14553B Features

* selector. The frequency of the oscillator can be controlled externally by a capacitor between pins 3 and 4, or it can be overridden and driven with an external clock at pin 4. Multiple devices can be cascaded using the overflow output, which provides one pulse for every 1000 counts. LATCH ENABLE 10

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