SN74LS240M

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS240M is a dual four-bit bus driver belonging to the LS (Low-power Schottky) logic series. It features two independent channels, each driving four bits with inverted outputs and three-state capability. The device utilizes TTL technology and is housed in a PDIP-20 package. It operates within a supply voltage range of 4.75 V to 5.25 V, with a nominal rating of 5 V. The component supports commercial temperature ranges from 0°C to 70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides three-state output control for efficient bus line interfacing
• Features inverted outputs for flexible signal routing
• Incorporates input clamp diodes to limit high-speed termination effects

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers
• Clock drivers
• Bus-oriented transmitters and receivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific manufacturer origin, as the SN74LS240 designation is utilized by multiple vendors including ON Semiconductor, Texas Instruments, and Rochester Electronics. Confirm that the 'M' suffix corresponds to the intended plastic DIP-20 packaging and lead finish specifications required for your assembly process. Ensure the revision level matches the design requirements for noise margins and hysteresis characteristics.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring low-power Schottky performance with bidirectional data flow capabilities. The dual-channel architecture allows for compact board density compared to single-driver solutions. Consider the inverted output polarity during schematic design to ensure correct logical alignment with downstream components without additional inversion stages.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the widely adopted 74LS family of digital logic integrated circuits. It serves as an octal buffer or line driver, distinct from non-inverting variants like the 74LS244. The LS technology offers a balance between power consumption and switching speed suitable for general-purpose digital applications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include the SN74LS240 from Texas Instruments and the MC74LS240 from onsemi. Verify pinout compatibility and electrical parameter equivalence before substitution.