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SN74ACT564
SCAS549D – NOVEMBER 1995 – REVISED FEBRUARY 2024
SN74ACT564 Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputs
1 Features
• Operation of 4.5V to 5.5V VCC • Inputs accept voltages to 5.5V • Max tpd of 8.5ns at 5V • Inputs are TTL-voltage compatible • 3-state inverted outputs drive bus lines directly • Flow-through architecture to optimize PCB layout • Full parallel access for loading
2 Description
The ’ACT564 devices are octal D-type edge-triggered flip-flops that feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.