74LVC244AT20-13

Overview

The 74LVC244AT20-13 is an octal buffer and line driver manufactured by Diodes Incorporated, featuring three-state outputs. It operates within a supply voltage range of 1.65V to 3.6V and provides two independent 4-bit drivers with separate output-enable inputs. The device supports partial power-down applications via IOFF circuitry, which prevents damaging current backflow when powered down. Inputs are tolerant to 5.5V, allowing compatibility in mixed-voltage environments.

Feature Summary

• Provides two independent 4-bit buffers with separate output-enable controls
• Supports partial power-down operation through integrated IOFF circuitry
• Features Schmitt trigger action at all inputs for noise immunity
• Inputs accept up to 5.5V for mixed-voltage system integration

Applications

• Bus driving
• Power down signal isolation
• General purpose logic
• Networking computer peripherals
• Hard drives and CD/DVD ROM

Procurement Notes

Verify the package code T20 corresponds to the TSSOP-20 form factor. Confirm the -13 suffix indicates 13-inch tape and reel packaging. Ensure the component meets RoHS compliance and is halogen and antimony free as specified in the manufacturer documentation.

Selection Notes

Select this component for designs requiring low-power CMOS buffering with mixed-voltage input tolerance. The device is suitable for applications needing high drive capability and protection against backflow during power-down states. Verify that the operating temperature range of -40°C to +125°C aligns with the environmental requirements.

Part Context

This part belongs to the 74LVC244A series of octal buffers and line drivers. It is designed for general-purpose logic applications and bus driving tasks. The device is available in multiple packages, including TSSOP-20 and V-QFN4525-20, catering to various surface-mount assembly needs.

Replacement Considerations

Direct substitutes include 74LCX244BQX from onsemi and 74LVC244ABQ,115 from Nexperia USA Inc.