The TC74HCT574AF(EL) is a high-speed CMOS octal D-type flip-flop with 3-state outputs, fabricated with silicon gate C2MOS technology. This device is designed for use in high-speed data storage and retrieval applications. The 3-state outputs allow the device to be effectively disconnected from the bus when not actively driving, preventing bus contention.

Applications

• Data storage registers
• Address latches
• Buffer registers
• Microprocessor systems
• Memory interface circuits

Features

• High-speed operation: fmax = 60 MHz (typ.) at VCC = 5 V
• Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
• 3-state outputs for bus interface
• Positive-edge triggered D-type flip-flops
• Common 3-state output enable (OE)
• Pin and function compatible with 74LS574

Benefits

• Improved system performance due to high-speed data storage and retrieval.
• Reduced power consumption compared to TTL devices.
• Prevention of bus contention during data transfer with 3-state outputs.
• Simple data storage using positive-edge triggered flip-flops.
• Easy integration with existing 74LS574 devices.

Additional Details

The TC74HCT574AF(EL) is supplied in a 20-pin SOIC (Small Outline Integrated Circuit) package. It operates over a voltage range of 4.5V to 5.5V. The operating temperature range is -40°C to +85°C. Data is clocked into the flip-flops on the positive-going edge of the clock (CLK) input. The outputs are enabled when the Output Enable (OE) input is low. Proper ESD precautions should be taken during handling.