SN74S240N

Buffers, Drivers, Receivers, Transceivers Overview

The SN74S240N is an octal buffer and line driver featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V. The device provides high-level output current of -15 mA and low-level output current of 64 mA. Propagation delay is specified at 10 ns when operating at 5 V with a 150 pF load. It supports a logic low level of 0.8 V and a logic high level of 2 V. The component is housed in a 20-pin PDIP package designed for through-hole mounting and functions reliably across an operating temperature range of 0°C to 70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides octal buffering and line driving capabilities with inverted outputs
• Features three-state outputs to facilitate bus-oriented systems
• Designed for high-speed operation using Schottky TTL technology

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented systems requiring high-speed data transfer
• Memory address decoding and driver circuits
• Clock drivers and buffer circuits in digital systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer marking on the component body to confirm it originates from Texas Instruments, as other vendors produce equivalent parts under similar naming conventions. Ensure the package type matches the required 20-DIP specification for your PCB layout. Confirm that the logic family aligns with your system's voltage and speed requirements before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require fast switching speeds characteristic of Schottky TTL logic. It is suitable for applications needing high drive capability with specific current sourcing and sinking limits. Consider the through-hole packaging constraint and ensure the operating temperature range meets your environmental specifications.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74S series, which utilizes Schottky diodes to prevent transistor saturation, thereby improving switching speed compared to standard TTL. It serves as a high-performance alternative to slower logic families while maintaining compatibility with standard TTL input levels. The octal configuration allows for efficient handling of wide data buses in complex digital architectures.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LS240N offers lower power consumption but reduced speed. SN74ALS240N provides improved performance over the LS variant. SN54S240J is the military-grade version with extended temperature ranges. Verify pinout and electrical characteristics before substituting.