74ABT245CMSA

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ABT245CMSA is an octal bidirectional transceiver with 3-STATE outputs housed in a 20-Lead Shrink Small Outline Package (SSOP). It operates within a supply voltage range of +4.5V to +5.5V and supports an ambient temperature range of -40°C to +85°C. The device provides high output drive capability, sinking 64 mA and sourcing 32 mA. Propagation delays are specified at 1.0 ns minimum and 3.6 ns maximum under standard conditions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional non-inverting buffers for bus-oriented applications
• High current sink capability of 64 mA on both A and B ports
• Glitch-free high impedance bus loading during power up and down cycles
• Non-destructive hot insertion capability permitted

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented data communication systems
• Bidirectional data flow control between buses
• High-speed asynchronous data transmission interfaces

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the package designation matches the SSOP MSA20 form factor required for your PCB layout. Confirm that the operating voltage requirements align with the +4.5V to +5.5V specification. Ensure thermal management meets the -40°C to +85°C ambient temperature limits. Check for RoHS compliance status if environmental regulations apply to your manufacturing process.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high drive strength is necessary for long bus lines or multiple loads. The ABT series offers superior speed compared to standard logic families. Verify that the input voltage levels are compatible with the driving source logic family. Consider the 3-STATE functionality for effective bus isolation and contention avoidance.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ABT logic family, which utilizes BiCMOS technology for high performance. It serves as a direct replacement for older 74S and 74LS series devices in terms of pinout while offering significantly faster switching speeds. The octal configuration allows for efficient 8-bit data transfer across parallel buses.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include the 74ABT245CSC (SOIC) and 74ABT245CPC (PDIP) from the same manufacturer line. Cross-manufacturer equivalents such as the SN74ABT245BN may be considered if pin compatibility and electrical characteristics match the original specifications.