M74HC4543B1R

Display Drivers Overview

The M74HC4543B1R is an 8-bit latch with a 3-state decoder/driver manufactured by STMicroelectronics. It belongs to the HC logic series and utilizes CMOS technology for high-speed operation while maintaining low power consumption. The device features eight data inputs, three address inputs, and eight tri-state outputs. It operates within a supply voltage range of 2 V to 6 V and supports through-hole installation in a 20-pin DIP package. The component functions as a multiplexer, converting parallel input data into decoded output signals based on the address lines.

Display Drivers Feature Summary

• Provides 8-bit latching capability with integrated decoding functionality
• Features tri-state outputs for bus-oriented memory applications
• Operates with wide voltage supply range suitable for various digital systems

Display Drivers Applications

• Bus-oriented memory addressing
• Decoder/driver circuits for display systems
• Multiplexing applications requiring tri-state control

Display Drivers Procurement Notes

Verify component authenticity and datasheet revisions upon procurement. Confirm pin compatibility and electrical specifications match system requirements. Check for obsolescence status and available alternatives if necessary. Ensure handling procedures comply with electrostatic discharge precautions.

Display Drivers Selection Notes

Select this component when an 8-bit latch with decoding and tri-state output is required. Consider the HC series speed and power characteristics. Verify package availability and operating temperature range for the specific application environment.

Display Drivers Part Context

This part is part of the 74HC family of high-speed CMOS logic devices. It serves as a specialized solution for memory and display interfacing where latching and decoding are combined. The device offers pin compatibility with equivalent LSTTL functions while providing improved power efficiency.

Display Drivers Replacement Considerations

• CD74HC4543E (Texas Instruments)
• SN74HC4543N (Texas Instruments)

Display Drivers FAQ

What is the function of the address inputs?

The three address inputs select one of the eight data inputs to be passed to the corresponding tri-state output.

How does the tri-state output benefit the design?

The tri-state outputs allow multiple devices to share a common bus without interference when disabled.