Texas Instruments

SN74ACT7806-40DLR

SN74ACT7806-40DLR Description

The SN74ACT7806-40DLR is an asynchronous FIFO memory IC designed by Texas Instruments, featuring a memory size of 4.5K (256 x 18) bits. This device is part of the 74ACT series and is housed in a 56-pin SSOP package, suitable for surface-mount applications. The FIFO operates within a supply voltage range of 4.5 V to 5.5 V and is capable of achieving an access time of 20ns, supporting a data rate of up to 25MHz. Although the product is now obsolete, it remains a notable option for specific applications requiring asynchronous FIFO functionality.

SN74ACT7806-40DLR Features

• Asynchronous Functionality: The SN74ACT7806-40DLR operates asynchronously, allowing for flexible data handling without the need for clock synchronization between the input and output ports.
• High-Speed Performance: With an access time of 20ns and a data rate of 25MHz, this FIFO is well-suited for high-speed data transfer applications.
• Programmable Flags Support: The device includes programmable flags that can be used to manage data flow and signal status conditions, enhancing system control and reliability.
• Low Power Consumption: The maximum supply current is 400µA, making it energy-efficient for applications where power consumption is a critical factor.
• Wide Operating Temperature Range: The operating temperature range of 0°C to 70°C ensures reliable performance in various environmental conditions.
• Compliance and Safety: The SN74ACT7806-40DLR is REACH unaffected and ROHS3 compliant, adhering to stringent environmental and safety standards. It also has a moisture sensitivity level (MSL) of 1, indicating it is suitable for unlimited exposure to standard indoor environments before reflow soldering.

SN74ACT7806-40DLR Applications

The SN74ACT7806-40DLR is ideal for applications requiring efficient data buffering and asynchronous data transfer. Specific use cases include:

• Telecommunications: Buffering data in communication systems where data rates and timing may vary between the transmitter and receiver.
• Data Acquisition Systems: Storing and managing data in systems where data is collected at irregular intervals or requires temporary storage before processing.
• Computer Peripherals: Managing data flow between peripherals and the main system, ensuring smooth operation and preventing data loss.
• Industrial Automation: Buffering data in industrial control systems where real-time data processing and asynchronous data handling are crucial.

Conclusion of SN74ACT7806-40DLR

The SN74ACT7806-40DLR, despite being obsolete, remains a valuable component for applications requiring asynchronous FIFO functionality. Its high-speed performance, low power consumption, and programmable flags make it a versatile solution for various data buffering needs. While newer alternatives may offer additional features, the SN74ACT7806-40DLR continues to provide reliable performance in specific use cases, making it a suitable choice for engineers and designers working with legacy systems or specialized applications.