HCPL-7721-320E

Logic Output Optoisolators Overview

The HCPL-7721-320E is a high-speed logic output optoisolator manufactured by Broadcom Limited. It features a single channel with a data rate of 25 Mb/s and an isolation voltage of 3750 Vrms. The device utilizes a photo IC output type capable of delivering 10 mA output current. Key timing parameters include a typical rise time of 9 ns and a fall time of 8 ns, with maximum propagation delays of 40 ns for both low-to-high and high-to-low transitions. The component operates within a temperature range of -40°C to +85°C and is housed in a PDIP-8 Gull Wing package.

Logic Output Optoisolators Feature Summary

• Provides robust galvanic isolation for signal transmission between circuits operating at diverse voltage levels.
• Delivers high-speed digital communication capabilities suitable for demanding industrial networking environments.
• Features a push-pull totem pole output structure for efficient signal driving.

Logic Output Optoisolators Applications

• Industrial digital fieldbus isolation such as CC-Link, DeviceNet, and PROFIBUS
• Microprocessor interface isolation
• Data transmission systems requiring reliable signal coupling

Logic Output Optoisolators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required packaging and lead-free specifications. Confirm that the PDIP-8 Gull Wing package aligns with existing board layout constraints. Check current availability status as distribution may be limited or discontinued. Ensure compliance with relevant safety certifications including UL, CSA, and IEC standards before final integration into production designs.

Logic Output Optoisolators Selection Notes

Select this component when high-speed data rates up to 25 Mb/s are required alongside significant voltage isolation. The 10 mA output current capability supports direct interfacing with various logic families. Consider the thermal performance limits defined by the 150 mW power dissipation rating. Evaluate the physical dimensions of the PDIP-8 package against available PCB space. Assess whether the specified propagation delay characteristics meet the system timing requirements.

Logic Output Optoisolators Part Context

This device belongs to the HCPL series of high-speed optocouplers from Broadcom Limited. The series is designed for applications requiring fast signal transfer across isolation barriers. The HCPL-7721 variant specifically targets digital communication interfaces where speed and reliability are critical. It represents a solution for separating noisy digital grounds while maintaining signal integrity in complex electronic systems.

Logic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Verify functional equivalence regarding pinout, isolation voltage, and speed if considering alternative components. Consult official manufacturer documentation for cross-reference information.