Texas Instruments

SN74ACT244DWR

The SN74ACT244DWR is a high-performance, 8-bit, parallel-in, parallel-out (PISO) shift register manufactured by Texas Instruments. It is designed to provide reliable and efficient data storage and transfer in various digital systems. Here's a description of the model, its features, and potential applications:

Description:

The SN74ACT244DWR is a member of the 74ACTxx family of advanced low-power CMOS devices. It is an 8-stage shift register that allows data to be shifted in parallel and out serially, or vice versa, based on the control signals applied. The device is available in a small-outline, wide-body (SO-16W) package, making it suitable for compact and space-constrained applications.

Features:

1. 8-bit Shift Register: The SN74ACT244DWR provides an 8-bit shift register with parallel data inputs and outputs, allowing for efficient data handling in digital systems.
2. Low Power Consumption: As a CMOS device, it offers low power consumption, making it suitable for battery-powered or power-sensitive applications.
3. High-Speed Operation: The device is designed for high-speed operation, with a maximum operating frequency of up to 150 MHz (depending on the supply voltage and temperature conditions).
4. 3-State Outputs: The outputs can be placed in a high-impedance state (3-state) when not in use, allowing for daisy-chaining or sharing of bus lines in complex systems.
5. Active-Low Control Inputs: The device features active-low control inputs for shifting data (SHIFT), parallel loading (LOAD), and output enable (OE).
6. Wide Operating Voltage Range: It operates over a wide supply voltage range of 2V to 6V, making it suitable for various power supply configurations.
7. RoHS-Compliant: The SN74ACT244DWR is compliant with the Restriction of Hazardous Substances (RoHS) directive, making it an environmentally friendly choice for electronic designs.

Applications:

1. Data Storage and Transfer: The SN74ACT244DWR can be used in digital systems where data needs to be stored and transferred efficiently, such as in data acquisition systems, digital signal processing, and communication interfaces.
2. Serial-to-Parallel Conversion: It can be used to convert serial data to parallel data in applications like digital communication protocols and data buffering.
3. Parallel-to-Serial Conversion: The device can also be used to convert parallel data to serial data for applications that require serial communication, such as interfacing with microcontrollers or other serial devices.
4. Counters and Dividers: The shift register can be used to create counters and frequency dividers in digital clock circuits and other timing applications.
5. Memory Expansion: The SN74ACT244DWR can be used to expand memory in microcontroller-based systems, providing additional storage for data and program code.
6. Digital Signal Processing: It can be utilized in digital signal processing applications for data manipulation, filtering, and other signal processing tasks.

In summary, the SN74ACT244DWR is a versatile and high-performance shift register that offers low power consumption, high-speed operation, and a wide operating voltage range. It is suitable for a variety of digital applications, including data storage, transfer, serial-to-parallel conversion, parallel-to-serial conversion, counters, memory expansion, and digital signal processing.