The MC74AC564/74ACT564 is a high-speed, low power octal flip-flop with a buffered common Clock (CP) and a buffered common Output Enable (OE).
The MC74AC564/MC74ACT564 is an octal D‑type latch with three‑state outputs, designed for use as input or output ports for microprocessors. It features a buffered common clock (CP) and a buffered common output‑enable (OE) line, with inverted outputs compared to the MC74AC574 family.
Key specifications include a supply voltage range of –0.5 V to +7.0 V, per‑pin input current of +20 mA, and per‑pin output sink/source capability of +50 mA. The device operates over a storage temperature range of –65 °C to +150 °C and supports typical high‑speed operation up to 75 MHz with propagation delays around 3.5 ns. Package dimensions for the DIP and SOIC variants are also detailed.