74ABT640D,602

Buffers, Drivers, Receivers, Transceivers Overview

The NXP USA Inc. 74ABT640D,602 is an octal bidirectional bus interface transceiver with inverting 3-State outputs. It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of -40°C to +85°C. The device features a propagation delay of 3.1 ns typ at 5V with 50pF load. Output drive capability is specified as +64mA for low state and -32mA for high state. Input capacitance for DIR and OE pins is 4 pF, while I/O capacitance is 7 pF. Total supply current in the disabled state is typically 50 μA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional bus interface with direction pin control
• Inverting 3-State buffers with power-up 3-State activation
• High output drive capability supporting live insertion/extraction

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional data bus interfaces
• Memory-to-memory data transfers
• Microprocessor-based systems requiring octal buffering

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm package type matches the 'D' suffix (20-Pin plastic SO). Ensure environmental compliance documentation aligns with project requirements. Check for obsolescence notices or lifecycle status updates prior to finalizing procurement plans.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal bidirectional transceiver with inverting logic is required. The 74ABT series offers high speed and low power dissipation suitable for demanding applications. Consider the 20-pin SO package availability and ensure voltage levels match the system's 4.5V to 5.5V requirement.

Buffers, Drivers, Receivers, Transceivers Part Context

The 74ABT640 belongs to the 74ABT family of high-performance BiCMOS logic devices. This family combines low static and dynamic power dissipation with high speed and high output drive capabilities. The specific model provides an octal configuration with direction control, making it suitable for complex bus architectures.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Consult official replacement lists for equivalent octal transceivers with similar electrical characteristics and package dimensions. Verify compatibility with existing circuit designs before substitution.