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Home › Magazines › 2005 › October › Cascode stage or ‘collector follower’

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Cascode stage or ‘collector follower’

Design Tip

Published in issue 347, October 2005

Cascode stage or ‘collector follower’
All microprocessors from the 8051 family have inputs and outputs that are 'quasi-bidirectional'. This means that when power is first applied, the ports behave as inputs with a logic high level and a weak pull-up.

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PDF Article (U051074.pdf)
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