MC74F623N

Overview

The MC74F623N is a single bus transceiver manufactured by onsemi, designed for high-speed data transfer applications. It features eight channels with three-state outputs and operates within a supply voltage range of 2.0 V to 3.6 V. The device utilizes CMOS input technology and provides a maximum propagation delay of 6.6 ns at 30 pF load. It supports output currents of up to 24 mA in both high and low states. Operating temperatures range from -40 °C to +85 °C, housed in a 20-pin PDIP package measuring 25.4 x 9.14 x 4.57 mm.

Feature Summary

• Single bus transceiver architecture supporting eight bidirectional channels
• Three-state outputs enabling safe bus isolation and multi-driver configurations
• CMOS input structure ensuring compatibility with standard logic families

Applications

• Memory buffer interfaces
• Clock distribution networks
• Data bus drivers in computing systems

Procurement Notes

Verify the specific suffix 'N' confirms the 20-pin PDIP package variant. Confirm the manufacturer is onsemi, as this part number may appear across multiple distributors. Ensure the datasheet matches the electrical characteristics for the LCX or F series if cross-referencing, though this specific part belongs to the base 74F family context provided in source data. Check for active status confirmation.

Selection Notes

Select this component when an eight-channel bidirectional bus interface is required with three-state control. It is suitable for systems needing moderate speed performance with low power consumption. Consider the PDIP package constraints for through-hole mounting requirements. Verify voltage levels match the system's 2.0 V to 3.6 V operating range before integration.

Part Context

This part belongs to the 74F logic family, known for faster switching speeds compared to standard 74LS series devices. The MC74F623N specifically addresses bus direction control needs in digital circuits. It serves as a critical interface component between microprocessors and peripheral memory or I/O devices, facilitating reliable data transmission in complex electronic architectures.

Replacement Considerations

Check for direct equivalents such as SN74F623N from Texas Instruments or similar 74F623 variants from other manufacturers. Ensure pinout compatibility and electrical specifications match exactly. Verify that alternative packages do not require adapter solutions if form factor is fixed.