SN74LVCH244ADB

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCH244ADB is an octal buffer and line driver from Texas Instruments, belonging to the LVCH logic family. It features eight non-inverting channels with three-state outputs, organized into two groups of four bits each. The device operates within a supply voltage range of 1.65 V to 3.6 V and supports mixed-mode signal operation, allowing inputs up to 5.5 V while powered by lower voltages. It utilizes a 20-pin SOIC package and includes Ioff circuitry for partial power-down protection.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight independent non-inverting buffer channels with three-state output capability for bus isolation.
• Supports mixed-mode signal operation, enabling compatibility between 5.5 V input signals and lower voltage supplies.
• Integrates Ioff circuitry to prevent excessive current draw during live insertion or partial power-down states.

Buffers, Drivers, Receivers, Transceivers Applications

• Data bus buffering in low-voltage digital systems
• Clock distribution and signal driving in consumer electronics
• Bus interface circuits requiring hot-swapping capabilities

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix against official documentation, as variations may indicate different packaging or temperature ratings. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the selected variant matches your board layout constraints regarding the SOIC-20 footprint and thermal dissipation needs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring high-speed buffering with mixed-voltage tolerance. The LVCH series offers optimized performance for 3.3 V and 2.5 V applications compared to standard LVC devices. Consider the three-state output feature if multiple drivers share a common bus line to prevent signal contention.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments 74LVCH244A family of octal buffers. These devices are designed for low-voltage CMOS applications, offering faster switching speeds than standard 74LVC counterparts while maintaining low power consumption. The family is widely used in portable and battery-operated equipment due to its wide operating voltage range.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVCH244ADBR: Same logical function but in SSOP-20 package. SN74LVCH244APWR: Same logical function but in TSSOP-20 package. Verify pinout compatibility and physical dimensions before substituting.