SN74LVC2244APWRG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC2244APWRG4 is a dual-supply bus transceiver manufactured by Texas Instruments. It features two 4-bit buffers with non-inverting logic and three-state outputs, housed in a 20-TSSOP package. The device operates within a supply voltage range of 1.65V to 3.6V. It supports bidirectional data transfer between different voltage domains. The component provides high-speed performance suitable for portable applications. It includes built-in hold circuits to maintain stable states during power transitions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Dual-supply architecture enabling translation between 1.8V and 3.3V or 5V domains
• Non-inverting buffer configuration with three-state output control
• Integrated hold circuitry to prevent floating outputs during power-up sequences

Buffers, Drivers, Receivers, Transceivers Applications

• Memory module address and data bus driving
• Clock distribution networks requiring level shifting
• Portable equipment connecting low-voltage processors to higher-voltage peripherals

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix G4 confirms RoHS compliance and manufacturing location details against the latest datasheet revision. Confirm the TSSOP-20 package dimensions match your PCB footprint requirements. Ensure the operating temperature range meets your system's environmental specifications before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional level shifting between 1.8V and 3.3V/5V systems is required. The dual-supply design eliminates the need for external level-shifting components. Consider the 20-TSSOP package size for space-constrained designs. Verify that the drive current capabilities meet the load requirements of the connected buses.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC2244 family of dual-supply bus transceivers. It is functionally similar to the SN74LVC244 but adds independent VCCB supply for level translation. The 'G4' suffix indicates lead-free and RoHS-compliant manufacturing. It serves as a bridge between low-voltage logic cores and legacy or higher-voltage peripheral interfaces.

Buffers, Drivers, Receivers, Transceivers FAQ

What is the primary function of the dual-supply feature?

It allows the device to translate signals between two different voltage domains, typically 1.8V on one side and 3.3V or 5V on the other.

How does the hold circuit affect operation?

The hold circuit keeps the outputs in a known state if the device is powered down or if the enable signal is inactive, preventing bus contention.