Thread: Interesting Vintage TTL Logic IC Problem
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Old 12th Oct 2021, 10:50 am   #7
PJL
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Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
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Default Re: Interesting Vintage TTL Logic IC Problem
The sink current for CKB is -3.2mA and low voltage is 0.4V. You really need a transistor buffer with pull-up resistor to drive this.
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