74LVC623AD,112

Overview

The 74LVC623AD,112 is an octal bus transceiver featuring non-inverting 3-state outputs in both send and receive directions. It operates within a supply voltage range of 1.2 V to 3.6 V and supports inputs up to 5.5 V. The device provides asynchronous two-way communication between data buses with dual enable inputs (OEAB and OEBA) for flexible timing control. It is housed in a SOIC-20 package (SOT163-1) and functions reliably across temperatures from -40 °C to +125 °C.

Feature Summary

• Dual independent enable inputs allow flexible timing control and bidirectional data transmission between An and Bn buses.
• Simultaneous enabling of both enable inputs isolates the buses while storing data by reinforcing inputs.
• Outputs remain high-impedance when VCC is 0 V, supporting hot-swap applications.
• Inputs tolerate up to 5.5 V, allowing direct interfacing with 5 V logic devices.

Applications

• Asynchronous two-way communication between data buses
• Mixed 3.3 V and 5 V system translation
• Bus isolation and data storage configurations

Procurement Notes

Verify the specific ordering suffix '112' against the manufacturer's current documentation to confirm the exact package type and environmental compliance status. Confirm that the SOIC-20 variant matches the required footprint and pinout for the design. Ensure the component meets the necessary RoHS and REACH directives for the target market.

Selection Notes

Select this component for designs requiring octal bus transceivers with independent direction control. The dual enable feature is suitable for complex bus architectures needing isolation or data latching capabilities. Verify that the operating voltage range of 1.2 V to 3.6 V aligns with the system power rails and that the 5.5 V tolerant inputs are compatible with the driving logic levels.

Part Context

This part belongs to the 74LVC623A family of octal transceivers manufactured by NXP Semiconductors. The 'AD' designation indicates the SOIC-20 plastic small outline package variant. The series is designed for low-power CMOS applications requiring high-speed data transfer and robust ESD protection compliant with JEDEC standards.

Replacement Considerations

Consult official cross-reference lists for verified substitutes such as the 74LVC623ADB or 74LVC623APW if different package footprints are acceptable. Ensure any replacement maintains the dual enable functionality and 5.5 V input tolerance specifications.