74ABT2245PW,118

Buffers, Drivers, Receivers, Transceivers Overview

The 74ABT2245PW,118 is an octal bidirectional bus transceiver manufactured by NXP USA Inc. (formerly Philips Semiconductors). It features non-inverting 3-State outputs with integrated 30 Ω series termination resistors in both HIGH and LOW states. The device operates on a single DC supply voltage ranging from 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 3.9 ns typ at 5 V, output drive capabilities of +12 mA / –32 mA, and a maximum quiescent supply current of 250 μA. It utilizes a 20-pin TSSOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrates 30 Ω series resistance within the output structure to minimize line noise and eliminate the need for external termination components.
• Provides octal bidirectional data transfer controlled by dedicated Direction (DIR) and Output Enable (OE) inputs.
• Ensures system safety through power-up 3-State functionality, allowing live insertion and extraction without bus contention.

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the specific ordering suffix matches the required package type, as this part number corresponds to the 20-pin TSSOP variant. Confirm compatibility with the target operating temperature range of -40 °C to +85 °C. Ensure the design environment supports the specified 4.5 V to 5.5 V supply voltage constraints. Cross-reference the manufacturer's latest datasheet to confirm the component status remains in production.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-speed data transmission is required alongside simplified PCB layout due to built-in termination. It serves as a direct functional equivalent to the 74ABT245-1 but adheres to updated industry naming standards. Consider its BiCMOS technology for applications demanding low static power dissipation combined with high switching speeds.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ABT logic family, characterized by BiCMOS technology that balances speed and power efficiency. It is functionally identical to the 74ABT245-1; the nomenclature change reflects standardization efforts within the semiconductor industry. The component is designed for robust performance in digital systems requiring reliable octal data routing.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74ABT245-1 is confirmed as the same device under a different designation. Verify pinout and electrical specifications against other octal bus transceivers before substitution.

Buffers, Drivers, Receivers, Transceivers FAQ

Why are external termination resistors not required for this device?

The device incorporates 30 Ω series termination resistors directly within the output circuitry for both HIGH and LOW states, which reduces line noise and removes the necessity for external components.

How does the device handle bus contention during power-up?

The 74ABT2245 includes a power-up 3-State feature that ensures outputs remain in a high-impedance state until the supply voltage reaches a stable level, permitting safe live insertion and extraction.