CD74HCT4543E

Display Drivers Overview

The CD74HCT4543E is a high-speed CMOS BCD-to-7-segment latch/decoder/driver manufactured by Harris Corporation. It accepts Binary-Coded Decimal inputs and drives common-anode seven-segment displays. The device features transparent address latches and registered data inputs, ensuring stable output states. It operates within a supply voltage range of 2V to 6V and supports a wide operating temperature range from -55°C to 125°C. The component is housed in a 16-pin Dual In-Line Package (DIP) with a standard 0.300-inch width.

Display Drivers Feature Summary

• Integrates BCD decoding logic with display driving capabilities for direct interface with seven-segment indicators.
• Incorporates transparent address latches to capture input data without affecting current output states.
• Utilizes registered data inputs to maintain signal integrity during transitions.
• Supports operation across extended industrial temperature ranges suitable for harsh environments.

Display Drivers Applications

• Digital clock displays requiring BCD input processing.
• Numeric readouts in industrial control panels.
• Consumer electronic devices utilizing seven-segment LED indicators.
• Test equipment front panels for numerical value representation.

Display Drivers Procurement Notes

Verify the manufacturer designation on the datasheet, as Texas Instruments also lists this part number. Confirm the package type matches the required 16-DIP specification. Check RoHS compliance status, as some sources indicate non-compliance. Ensure the supplier provides official documentation from Harris Corporation or authorized distributors to guarantee authenticity and correct revision levels.

Display Drivers Selection Notes

Select this component when a combined decoding and driving solution is needed for common-anode displays. Consider the HCT logic family compatibility if interfacing with TTL-level signals. Evaluate the power supply requirements against the 2V to 6V operational range. Verify that the 16-pin DIP package fits the available PCB footprint constraints.

Display Drivers Part Context

This component belongs to the 74HCT series of logic integrated circuits, designed for high-speed CMOS applications compatible with TTL inputs. Harris Corporation produced this line before its semiconductor assets were acquired by other entities. The CD74HCT4543E specifically addresses the need for efficient numeric display drivers in digital systems.

Display Drivers Replacement Considerations

Check for equivalents from Texas Instruments under the same part number, as they may hold rights to the design. Verify pinout compatibility with other 74HCT4543 variants. Ensure electrical characteristics match the original specifications for seamless integration into existing designs.