74LCX543WMX

Overview

The Fairchild Semiconductor 74LCX543WMX is an octal registered bus transceiver belonging to the 74LCX logic family. It provides eight bits of non-inverting data transfer with registered outputs, utilizing a 24-pin SOIC package. The device operates within a supply voltage range of 2V to 3.6V and supports LVTTL or TTL input levels while delivering LVCMOS output levels. Key electrical characteristics include a propagation delay of 8ns, low quiescent current of 10uA, and output drive capabilities of 24mA for both high and low states. It functions across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Octal Registered Bus Transceiver
• Non-Inverting Data Transfer
• 3-State Outputs
• LVTTL/TTL Input Compatibility

Applications

• High-density memory modules
• Clock drivers
• Buffering and bus-oriented transfers

Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status via official documentation. Check for obsolescence notices as this series may be discontinued. Ensure ESD handling protocols are followed during storage and assembly. Validate package markings against datasheet specifications.

Selection Notes

Select this component for applications requiring registered data latching on bus interfaces. Suitable for systems needing low power consumption and wide voltage operation. Consider the 24-pin SOIC package constraints for PCB layout. Verify signal integrity requirements against the 8ns propagation delay specification.

Part Context

This part belongs to the 74LCX family of CMOS logic devices. It serves as a registered version of the standard bus transceiver, adding output registration for improved timing control. The WMX suffix typically indicates tape and reel packaging for surface mount technology applications.

Replacement Considerations

Direct substitutes include the 74LCX543MTC and 74LCX543MSA. Cross-reference pinouts and electrical parameters before substitution. Verify package compatibility for mechanical fit.