74FCT543ASPC

Buffers, Drivers, Receivers, Transceivers Overview

The National Semiconductor 74FCT543ASPC is an octal registered bus transceiver belonging to the FCT logic series. It features a single functional unit with eight bits per element, providing true (non-inverting) outputs. The device utilizes a 24-pin CDIP package and operates within a supply voltage range of 4.75V to 5.25V. It supports bidirectional data transfer with three-state outputs and includes independent control for latch and output enables in each direction.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal Registered Bus Transceiver
• Bidirectional Data Transfer
• Three-State Outputs
• Independent Direction Control

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus buffering
• Memory interface circuits
• System control logic
• Registered data latching applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity due to potential availability from secondary markets. Confirm RoHS compliance status as original specifications may indicate non-compliance. Ensure the 24-CDIP package matches design requirements. Check for moisture sensitivity level constraints during storage and handling. Validate that the manufacturer designation aligns with current Texas Instruments ownership of the National Semiconductor portfolio.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring registered octal data transfer with high-speed performance characteristics typical of the FCT series. Ensure the design accommodates the through-hole mounting requirement of the CDIP package. Verify that the operating temperature range meets environmental conditions. Consider power supply stability within the specified voltage limits to maintain signal integrity.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74FCT543 family of octal registered transceivers. It is functionally compatible with other devices in the same logic family sharing identical pinouts and electrical characteristics. The component represents a transition technology between standard TTL and advanced CMOS logic families, offering improved speed over traditional 74LS equivalents while maintaining compatibility.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Consider CY74FCT543 variants for surface mount alternatives. Evaluate P74FCT543L for ceramic leaded chip carrier packages if hermetic sealing is required. Verify pinout compatibility before substituting with equivalent parts from Texas Instruments or other manufacturers.