74LVC244ADTR2G

Overview

The MC74VHCT244ADTR2G is an octal bus buffer and line driver manufactured by onsemi, belonging to the VHCT logic series. It features eight non-inverting inputs and outputs with three-state capability, housed in a TSSOP-20 surface-mount package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum static current of 4 uA. It exhibits a propagation delay of 8.4 ns and handles a power dissipation of 833 mW. The component functions across an extended temperature range from -55 °C to +125 °C.

Feature Summary

• Provides octal buffering with independent control via active-low output enable inputs for data bus isolation.
• Delivers high-speed signal transmission comparable to Bipolar Schottky TTL while maintaining low CMOS power consumption.
• Supports mixed-mode signal operations allowing simultaneous analog and digital signaling on I/O ports.

Applications

• Asynchronous communication between data buses
• Clock drivers and buffer circuits
• Memory module address and data bus driving

Procurement Notes

Verify the complete part number including the suffix ADTR2G to ensure correct packaging and tape-and-reel specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Validate that the operating environment remains within the specified -55 °C to +125 °C thermal limits to maintain performance integrity.

Selection Notes

Select this component when interfacing 5 V logic systems requiring high-speed buffering with low quiescent current. The VHCT series ensures compatibility with standard TTL input levels while offering CMOS drive strength. Ensure the application utilizes a 5 V supply rail and requires the TSSOP-20 form factor for space-constrained designs.

Part Context

This device is part of the MC74VHCT244A family of advanced high-speed CMOS logic products. It serves as an octal buffer designed for high-density digital systems. The VHCT technology bridges the performance gap between traditional bipolar logic and standard CMOS, providing faster switching speeds without the associated power penalties.

Replacement Considerations

Cross-reference with SN74VHCT244 or NXP 74VHCT244 equivalents for functional parity. Verify pinout compatibility and electrical characteristics against specific datasheets before substitution.