HCPL-7721-020E

Logic Output Optoisolators Overview

The HCPL-7721-020E is a single-channel high-speed logic output optoisolator from Broadcom. It features a push-pull totem pole output capable of sourcing and sinking 10 mA. The device supports data rates up to 25 MBd with typical rise and fall times of 9 ns and 8 ns, respectively. It provides galvanic isolation with an insulation voltage of 5000 Vrms and a common-mode transient immunity of 10 kV/µs. Operating temperatures range from -40°C to +85°C. The component is housed in an 8-pin PDIP package.

Logic Output Optoisolators Feature Summary

• High-speed digital signal transmission with low propagation delay
• Robust common-mode noise rejection for noisy environments
• Push-pull output stage eliminates need for external pull-up resistors

Logic Output Optoisolators Applications

• Industrial digital fieldbus isolation (e.g., CC-Link, DeviceNet)
• Microprocessor interface circuits
• Data communication link isolation

Logic Output Optoisolators Procurement Notes

Verify the specific suffix '020E' against the manufacturer's current product status, as some variants in this series may be discontinued or subject to limited supply conditions. Confirm that the PDIP-8 through-hole package aligns with PCB layout requirements. Ensure the 5000 Vrms isolation rating meets system safety standards. Cross-reference the 10 mA output current capability with load specifications. Check RoHS compliance documentation if required by project regulations.

Logic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required between microprocessors or communication buses. The push-pull output is suitable for driving loads directly without additional circuitry. Consider the 10 kV/µs CMTI for applications with significant ground potential differences. The wide operating temperature range supports industrial environments. Compare against lower-speed alternatives if data rates below 25 MBd are sufficient.

Logic Output Optoisolators Part Context

This part belongs to the HCPL-7721 series of high-speed optocouplers manufactured by Broadcom Limited. The series is designed for demanding industrial applications requiring fast signal transfer and reliable electrical isolation. Variants within the series differ primarily in packaging options and shipping configurations while maintaining core electrical performance characteristics.

Logic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs before considering alternative components.