SN74ALS564BN

The SN74ALS564BN is a high-speed, low-power, 8-bit shift register manufactured by Texas Instruments. It is part of the 74ALS (Advanced Low Power Schottky) series, which is known for its improved performance over standard TTL (Transistor-Transistor Logic) devices. Here’s a detailed description of its features and specifications:

General Features:

• Type: 8-bit Shift Register
• Technology: Advanced Low Power Schottky (ALS)
• Package Type: Typically available in a 20-pin Dual In-line Package (DIP) or surface mount options.
• Supply Voltage: Operates typically at 5V, with a range of 4.5V to 5.5V.
• Input/Output Compatibility: Compatible with TTL logic levels, making it suitable for interfacing with other TTL devices.

Functional Description:

• Shift Register Functionality: The SN74ALS564BN can shift data in either direction (left or right) based on control signals. It can be used for serial-to-parallel or parallel-to-serial data conversion.
• Data Input: The device has parallel data inputs that allow for loading data into the register. The data can be shifted out serially through the output pins.
• Control Pins: It includes control pins such as Shift/Load (S/L) and Clock (CLK) that dictate the operation mode (shifting or loading) and timing of the data transfer.
• Asynchronous Reset: The device features an asynchronous reset pin that can clear the register contents regardless of the clock state.

Electrical Characteristics:

• Propagation Delay: The typical propagation delay from the clock input to the output is around 10-15 ns, depending on the operating conditions.
• Power Dissipation: The device is designed for low power consumption, making it suitable for battery-operated devices.
• Input and Output Current: The input current is typically low, and the output can drive standard TTL loads.

Applications:

• Data Storage: Used in applications requiring temporary data storage and manipulation.
• Data Communication: Ideal for serial communication systems where data needs to be shifted in and out.
• Digital Signal Processing: Can be utilized in various digital signal processing applications for data handling.

Pin Configuration:

The SN74ALS564BN typically has 20 pins, with specific pins designated for data input, output, control signals, and power supply. The pin configuration allows for easy integration into various circuit designs.

Summary:

The SN74ALS564BN is a versatile and efficient 8-bit shift register that provides reliable performance in digital applications. Its low power consumption, high-speed operation, and compatibility with TTL logic make it a popular choice for engineers and designers in the field of electronics.