HCPL-7721#300

Logic Output Optoisolators Overview

The HCPL-7721#300 is a high-speed optocoupler featuring one channel with a data rate of 25 Mb/s. It provides an isolation voltage of 3750 Vrms and operates within a temperature range of -40°C to +85°C. The device utilizes a push-pull output type and accepts a forward current of 10 mA with a forward voltage of 5 V. Key timing parameters include a rise time of 9 ns, a fall time of 8 ns, and a maximum propagation delay of 40 ns. The component is housed in an 8-DIP package.

Logic Output Optoisolators Feature Summary

• High-speed digital isolation capability supporting 25 MBd data rates
• Strong common mode transient immunity with minimum 10 kV/us rejection
• Direct compatibility with 5 V CMOS logic interfaces

Logic Output Optoisolators Applications

• Isolation for industrial digital fieldbuses such as CC-Link, DeviceNet, and PROFIBUS
• Microprocessor interface signal transmission
• General-purpose high-speed data transfer isolation

Logic Output Optoisolators Procurement Notes

Verify the specific suffix #300 against official Broadcom documentation to confirm packaging details and compliance status. Ensure the procurement source provides valid RoHS certification records. Cross-reference the manufacturer part number with current availability lists, as this component may be subject to discontinuation notices or lifecycle changes. Confirm that the received units match the specified PDIP-8 package dimensions.

Logic Output Optoisolators Selection Notes

Select this component when 25 Mb/s speed and 3750 Vrms isolation are required for 5 V CMOS systems. Consider the 8-DIP through-hole package for PCB layouts requiring standard DIP footprints. Evaluate the 40 ns propagation delay against system timing budgets. Compare against alternatives if surface-mount solutions or different isolation voltages are necessary for the target application environment.

Logic Output Optoisolators Part Context

This device belongs to the HCPL series of high-speed optocouplers manufactured by Broadcom Limited. It is designed for robust digital isolation in noisy industrial environments. The series emphasizes fast switching speeds and high common-mode rejection ratios to ensure reliable data integrity across isolation barriers in communication and control circuits.

Logic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with direct replacements by matching electrical parameters such as 25 Mb/s speed, 3750 Vrms isolation, and PDIP-8 packaging. Consult official Broadcom substitution guides for updated recommendations.