The TC74ACT373FW is an octal D-type transparent latch with 3-state outputs. This device features eight D-type latches with a common latch enable (LE) input and eight 3-state outputs. When LE is high, the Q outputs follow the data (D) inputs. When LE goes low, the data that was present at the D inputs at the time of the transition is latched and held at the Q outputs. The output enable (OE) input controls the 3-state outputs; when OE is low, the outputs are enabled, and when OE is high, the outputs are in a high-impedance state.

Applications

• Data buffering
• Address latching
• Memory interfacing
• I/O port expansion
• Microprocessor systems

Features

• Octal D-type latches
• Transparent latch operation
• 3-state outputs
• High-speed operation
• TTL compatible inputs

Benefits

• Efficient data buffering and latching
• Easy interfacing with memory and peripheral devices
• Allows multiple devices to share a common bus
• High-speed performance for demanding applications

Additional Details

The TC74ACT373FW is supplied in a 20-pin SOIC package. The device operates as a transparent latch when the Latch Enable (LE) is high. Data at the D inputs is passed directly to the Q outputs. When LE transitions low, the data present at the D inputs is latched. The Output Enable (OE) controls the 3-state outputs. When OE is low, the outputs are enabled and the latched data is presented. When OE is high, the outputs are in a high-impedance state. The device operates over a supply voltage range of 4.5V to 5.5V.