74LVC244APYG

Overview

The IDT 74LVC244APYG is an octal buffer and line driver featuring non-inverting logic with three-state outputs. It operates within a supply voltage range of 1.65 V to 3.6 V, designed for asynchronous communication between data buses. The device comprises two independent four-bit buffers, each controlled by separate output enable inputs. This configuration allows flexible signal routing in mixed-voltage environments while maintaining low power consumption typical of CMOS technology.

Feature Summary

• Provides eight-channel non-inverting buffering with independent control over two groups of four outputs via dedicated enable pins
• Supports mixed-mode signal operations across all ports, enabling compatibility with various logic families
• Includes integrated circuitry to maintain high-impedance states during power-up or power-down sequences

Applications

• Asynchronous data bus driving applications
• Clock drivers and buffered oscillators
• Memory module address and data bus buffering

Procurement Notes

Verify the specific package marking and manufacturer date code against the official IDT datasheet to confirm authenticity. Ensure the ordering suffix matches the required tape-and-reel quantity specifications. Cross-reference the component markings with the manufacturer's official pinout diagrams to prevent installation errors related to orientation or pin definition mismatches.

Selection Notes

Select this component when designing systems requiring octal buffering with three-state capabilities at low voltages. It is suitable for applications needing interface between different logic families due to its wide input tolerance. Consider the thermal performance and package constraints when integrating into dense PCB layouts requiring surface-mount assembly.

Part Context

This part belongs to the 74LVC family of low-voltage CMOS logic devices. It serves as a standard solution for signal buffering in portable and battery-operated electronics. The device complements other members of the series by providing unidirectional data flow with high noise immunity and fast switching speeds relative to its power consumption profile.

Replacement Considerations

Compatible substitutes include the SN74LVC244A from Texas Instruments and the 74LVC244A from NXP Semiconductors. Verify that alternative sources offer identical pin configurations and electrical characteristics to ensure direct interchangeability without circuit redesign.