74FR543SPC

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74FR543SPC is an octal latched transceiver featuring non-inverting logic and three-state outputs. It operates within a voltage range of 4.5V to 5.5V and utilizes a 24-pin DIP package. The device integrates eight bidirectional data paths with latching capability, allowing for temporary storage of input data during transmission. Designed for high-speed digital applications, it supports TTL input levels and provides robust output drive characteristics suitable for bus-oriented systems requiring reliable data transfer and isolation.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent bidirectional data channels
• Latched architecture enabling data retention during active transmission phases
• Three-state output design facilitating direct connection to system buses without external buffers
• Non-inverting signal path maintaining logical polarity between inputs and outputs

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory and I/O systems requiring data latching
• High-speed register designs in industrial control environments
• Bidirectional data transfer interfaces in telecommunications equipment

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'SPC' against the manufacturer's current datasheet to confirm pinout compatibility and package dimensions. Ensure the supply chain source provides authentic Fairchild Semiconductor documentation. Cross-reference the operating temperature range and voltage specifications with your system requirements before integration. Confirm RoHS compliance status if environmental regulations apply to your deployment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal transceiver with integrated latching functionality is required for bus isolation. The three-state outputs allow multiple devices to share a common data line efficiently. Consider the 24-pin DIP package for through-hole prototyping or legacy board designs. Evaluate the propagation delay and power consumption against system timing constraints and thermal management capabilities.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74F series of high-speed CMOS logic devices, offering performance comparable to standard TTL but with lower power consumption. The FR variant typically denotes enhanced reliability or specific processing conditions. As an octal transceiver, it serves as a critical interface component in digital systems, bridging microprocessors with peripheral devices or memory arrays while managing data flow direction and state.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include the 74F543 series variants from other manufacturers, provided pinouts and electrical characteristics match. Verify that alternative parts maintain the same latching behavior and three-state output control logic. Check for any differences in input threshold voltages or output drive strengths that might affect signal integrity in existing designs.