MC74LCX244DTG

Overview

The MC74LCX244DTG is a low-voltage CMOS octal buffer manufactured by onsemi. It features five-volt tolerant inputs and outputs, supporting a supply voltage range of 2.0 V to 3.6 V. The device provides non-inverting buffering with three-state output control. It utilizes a 20-pin TSSOP surface-mount package. The component operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Provides eight-channel signal buffering with independent output enable controls
• Features five-volt tolerant I/O structure for safe interfacing with legacy systems
• Delivers high-speed performance suitable for memory and microcontroller bus applications

Applications

• Memory mapping in embedded systems
• Clock buffering and distribution networks
• Bus driver circuits for data transmission

Procurement Notes

Verify the specific suffix 'DTG' against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Ensure the ordering code matches the required tape-and-reel or tube packaging configuration. Cross-reference the date code to verify production batch recency and availability constraints.

Selection Notes

Select this component when designing interfaces between 3.3 V logic domains and 5 V tolerant peripherals. It serves as a direct replacement for standard 74HC244 devices where lower power consumption and higher speed are required. Confirm that the load capacitance requirements align with the specified switching characteristics.

Part Context

This part belongs to the 74LCX family of low-voltage CMOS logic devices. It shares functional similarities with other octal buffers like the MC74LCX244DWR2G but differs in packaging and reel specifications. The series is characterized by wide operating voltage ranges and robust noise immunity.

Replacement Considerations

MC74LCX244DWR2G