SN74HCT244DGSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCT244DGSR is an octal buffer and line driver manufactured by Texas Instruments, featuring three-state outputs. It operates within a supply voltage range of 4.5V to 5.5V and utilizes HCT technology for TTL-voltage compatible inputs. The device is organized as two independent 4-bit buffers with separate output-enable (OE) inputs. It provides high-current outputs capable of driving up to 15 LSTTL loads, with ±6mA drive capability at 5V. Typical propagation delay is 13ns, and maximum ICC power consumption is 80µA. The component is housed in a 20-pin VSSOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features three-state outputs that allow the device to drive bus lines and buffer memory address registers effectively.
• Includes low input current specifications to minimize loading on preceding logic stages.
• Provides balanced output drive characteristics suitable for improving performance and density in bus-oriented applications.

Buffers, Drivers, Receivers, Transceivers Applications

• Servers
• LED displays
• Network switches
• Telecom infrastructure
• Motor drivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific operating temperature range and package dimensions against the latest official datasheet before finalizing design integration. Confirm that the VSSOP-20 package meets the required thermal resistance and moisture sensitivity level constraints for the intended manufacturing process. Ensure all unused inputs are properly biased to prevent undefined operational states during operation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal buffering with high drive strength and low power consumption. It is appropriate for applications needing TTL-compatible inputs while maintaining CMOS noise immunity. Consider the specific thermal requirements and board space limitations associated with the VSSOP-20 package when evaluating alternative packages within the same logic family.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4HCT244 series of octal buffers and line drivers with three-state outputs. The 'DGSR' suffix indicates a 20-pin VSSOP package configuration supplied in a large tape-and-reel carrier format. This series is designed specifically to enhance the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HCT244DWR serves as a direct replacement offering identical functionality in a 20-pin SOIC package.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the output-enable pin control the device state?

When the OE pin is low, the device passes non-inverted data from the A inputs to the Y outputs. When OE is high, the outputs enter a high-impedance state.

What is the input compatibility of this device?

The inputs are TTL-voltage compatible, allowing direct interfacing with standard TTL logic levels.