SN74LVTH241NSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH241NSR is an octal buffer and line driver from Texas Instruments, designed for low-voltage 3.3-V VCC operation with TTL interface capability to 5-V systems. It features non-inverting data transmission through two independent 4-bit sections controlled by separate output-enable inputs (1OE, 2OE). The device supports mixed-mode signal operation, allowing 5-V input and output voltages while operating at 3.3 V. It includes active bus-hold circuitry on data inputs to maintain valid logic states without external resistors. Electrical characteristics specify a supply voltage range of 2.7 V to 3.6 V, with high-level output current of -32 mA and low-level output current of 64 mA. Propagation delay is typically 2.3 ns at 3.3 V.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation with 5-V tolerant inputs and outputs while powered by 3.3 V
• Features active bus-hold circuitry on data inputs to eliminate the need for external pullup or pulldown resistors
• Provides Ioff and power-up 3-state support to enable safe hot-insertion into live systems
• Includes latch-up protection exceeding 500 mA per JESD 17 standards

Buffers, Drivers, Receivers, Transceivers Applications

• Buffering and driving data buses in 3.3-V microprocessor systems
• Interface circuits between 5-V legacy components and 3.3-V logic devices
• Hot-swap applications requiring controlled power-up and power-down states

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the package type matches the design requirements, as the NS suffix indicates an SOP-20 package. Confirm that the operating temperature range of -40°C to +85°C aligns with the environmental conditions of the target application. Ensure that the supply voltage remains within the specified 2.7 V to 3.6 V limits to guarantee proper functionality and avoid damage to the internal circuitry.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require octal buffering with 3.3-V logic levels but must interface with 5-V signals. The presence of bus-hold circuitry simplifies board layout by removing the need for external pull resistors. Consider the propagation delay and output drive strength if driving heavy capacitive loads or high-speed buses. Verify that the SOP-20 package fits the available footprint on the printed circuit board.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVTH241 family of octal buffers and drivers. It is manufactured by Texas Instruments and is part of their LVTH logic series, which is optimized for low-voltage applications. The device is functionally similar to other octal buffers but specifically tailored for 3.3-V operation with 5-V tolerance. It is commonly used in digital communication interfaces and memory addressing circuits where level shifting and signal buffering are required.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTH241DW

Buffers, Drivers, Receivers, Transceivers FAQ

How does the bus-hold circuitry affect unused inputs?

The active bus-hold circuitry holds unused or undriven inputs at a valid logic state, eliminating the need for external pullup or pulldown resistors.

What is the purpose of the Ioff feature?

The Ioff circuitry disables the outputs when VCC is below 1.5 V, preventing damaging current backflow through the device during power-down or hot-insertion scenarios.