SN74F243D

Buffers, Drivers, Receivers, Transceivers Overview

The SN74F243D is a quadruple bus transceiver with 3-state outputs manufactured by Texas Instruments. It belongs to the 74F logic series and operates within a supply voltage range of 4.5V to 5.5V. The device features bidirectional data transmission capabilities, allowing signals to flow in either direction controlled by a direction input. It supports high-speed digital systems with typical propagation delays ranging from 3.6ns to 10ns depending on load conditions. The component is housed in an SOIC-14 package and is designed for through-hole or surface-mount installation.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides quadruple bidirectional bus transceiver functionality with 3-state outputs
• Enables multiple devices to share a common bus architecture efficiently
• Features low input and output leakage currents suitable for high-speed applications

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed digital data transmission systems
• Bus-oriented memory and instrument control architectures
• Multipoint data transfer networks requiring bidirectional signal flow

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'D' indicates the SOIC-14 package variant when ordering. Confirm RoHS compliance status as it may vary by production batch. Ensure the supplier provides official datasheets matching the SN74F243D part number to avoid confusion with similar F-series components like the SN74F240N. Check for lead time requirements as manufacturing cycles can extend beyond standard availability.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional data transfer is required between microprocessors and peripheral devices. The 3-state output allows direct connection to system buses without additional isolation circuitry. Consider the 74F series speed characteristics against power consumption constraints. Verify that the operating temperature range of 0°C to +70°C meets environmental requirements for the target application.

Buffers, Drivers, Receivers, Transceivers Part Context

This component is part of the Texas Instruments 74F (Fast) logic family, known for high-speed performance compared to standard TTL. It serves as a critical interface element in digital designs where data directionality must be dynamically controlled. The SN74F243D complements other bus drivers and receivers in complex system architectures.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74F240N is an octal buffer but lacks bidirectional transceiver capability and has different pin counts. Direct substitution requires verifying functional equivalence regarding bus sharing and direction control logic. No identical quad bidirectional transceivers are confirmed in the provided source material.