KB06: Descriptions of IC's Used in Digital Logic Labs
This section does not include gate chips: 7400, 02, 04, 08, 10, 32, and 86.
Notational note: On the Standard IC Symbol sheet, a 「bubbled」 pin indicates an active-low input or output. Here, apreceding the pin name means the same thing. Thus, . This specifically refers to the voltage at the pin. Inside the symbol — on the other side of the bubble from the pin — it would be shown as CLR.