M74HC244TTR

Overview

The M74HC244TTR is an octal bus buffer with 3-state outputs, fabricated using advanced high-speed silicon gate C2MOS technology. It features non-inverted logic controlled by two G inputs that govern four bus buffers each. The device operates within a wide voltage range of 2V to 6V and includes protection circuits against static discharge and transient excess voltage on all inputs. Designed for memory address drivers and similar applications, it offers balanced propagation delays and symmetrical output impedance.

Feature Summary

• Octal bus buffer configuration with 3-state outputs
• Advanced high-speed CMOS fabrication process
• Input protection against static discharge and transients

Applications

• Memory address drivers
• Bus-oriented transmissions
• Clock drivers

Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm availability through authorized distributors or secondary markets as standard supply may be discontinued. Ensure compatibility with existing PCB footprints if replacing active inventory. Check for RoHS compliance details in specific datasheet versions.

Selection Notes

Select this component for designs requiring octal buffering with 3-state control. Verify operating voltage requirements fall between 2V and 6V. Consider the TSSOP-20 package dimensions for layout constraints. Evaluate propagation delay specifications against system timing requirements at the target supply voltage.

Part Context

This part belongs to the M74HC244 series of octal bus buffers. It is manufactured by STMicroelectronics. The 'TTR' suffix indicates the TSSOP-20 tape and reel packaging format. It is functionally compatible with the standard 74HC244 logic family.

Replacement Considerations

Check for direct pin-compatible replacements from other manufacturers such as NXP or Texas Instruments. Verify electrical characteristics match the original specifications. Consider newer generation equivalents if available.