74ABT2245DB,112

Buffers, Drivers, Receivers, Transceivers Overview

The NXP USA Inc. 74ABT2245DB,112 is an octal bidirectional bus transceiver in a 20-pin SSOP package. It operates on a 4.5 V to 5.5 V supply with TTL-compatible inputs and outputs. The device features 3-State buffers, a direction control pin, and an active-low output enable input. Propagation delay is typically 3.9 ns at 5 V with 50 pF load. Outputs include built-in 30 Ω series termination resistors. Quiescent current is 50 μA max when disabled.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional bus interface with non-inverting 3-State outputs
• Integrated 30 Ω series resistance in both HIGH and LOW states for internal termination
• Direction control via DIR pin and cascading capability via OE pin
• Power-up 3-State mode permitting live insertion and extraction

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix ',112' against the manufacturer's current catalog to confirm availability and compliance status. Confirm that the SSOP-20 package variant matches the required PCB footprint. Check for any product change notifications or lifecycle updates regarding this specific revision of the ABT logic family.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for high-speed 8-bit data buses requiring integrated line termination. The 30 Ω internal resistance eliminates external components. Ensure the system voltage remains within the 4.5 V to 5.5 V range. Verify that the -40 °C to +85 °C operating temperature range meets environmental requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ABT logic family, utilizing BiCMOS technology for low power dissipation and high speed. It serves as a direct replacement for the 74ABT245-1, reflecting updated industry naming standards while maintaining identical functionality and pinout compatibility.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The datasheet explicitly identifies the 74ABT245-1 as functionally identical. Verify pinout compatibility before substitution.