74265 (Octal D-type Flip-Flop with 3-state outputs)

Description

The 74265 is an Octal D-type Flip-Flop with 3-state outputs. It is similar to the 74574, but with the added feature of no reset (clear) functionality and a slightly different configuration. It is part of the 7400 series of logic ICs and is commonly used in digital systems for data storage, shifting, and output control. 74265 IC Description: The 74265 is an Octal D-type flip-flop with 3-state outputs. The flip-flops are edge-triggered and update their state on the rising edge of the clock input. The 3-state outputs make it ideal for driving shared data buses, as it allows individual devices to either output data or be placed into a high-impedance state, effectively disconnecting from the bus. Key Features: 8 D-type Flip-Flops: The IC contains 8 individual D-type flip-flops, allowing for 8 bits of data storage. 3-State Outputs: The outputs are tri-state, meaning they can be in one of three states: high (1), low (0), or high-impedance (Z), making it ideal for bus-based systems. Clocked Operation: The flip-flops are edge-triggered and capture data on the rising edge of the clock signal. No Clear Pin: Unlike some other flip-flops, the 74265 does not include an active-low clear pin, which simplifies the design in certain systems. Enable Pin: The Output Enable (OE) pin controls whether the flip-flops' outputs are actively driven or placed in a high-impedance state. Pin Configuration (16-pin package): Here’s the pinout for the 74265 Octal D-type flip-flop with 3-state outputs: Pin 1