CD74HCT244ME4

Overview

The CD74HCT244ME4 is an octal buffer and line driver manufactured by Texas Instruments, belonging to the HCT logic series. It features a 20-pin TSSOP package and provides non-inverting data transmission with three-state outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V, drawing a maximum static current of 8 µA. It supports output currents of ±6 mA and functions reliably across a temperature range from -55°C to +125°C.

Feature Summary

• Configured as two independent four-bit buffers or drivers, each equipped with its own output enable control for flexible bus management.

Applications

• Memory address buffering
• Clock signal driving
• Bus-oriented receivers and transmitters

Procurement Notes

Verify the specific package variant and environmental compliance status directly against the manufacturer's latest documentation before procurement. Confirm that the component meets all required operating temperature specifications for the intended application environment.

Selection Notes

Select this component when high-speed CMOS performance is required alongside TTL-compatible input levels. Ensure the design accommodates the specified 4.5 V to 5.5 V supply voltage constraints and utilizes the appropriate thermal management for the TSSOP-20 form factor.

Part Context

This part is a member of the SN74HCT244 family, which includes variants such as SN74HCT244DWR and SN74HCT244DW. These devices are designed to enhance system performance and density in digital circuits requiring octal buffering capabilities with tri-state functionality.

Replacement Considerations

Direct substitutes include SN74HCT244DWR and SN74HCT244DW. Verify pin compatibility and electrical characteristics before implementation.