NCN8024DTBR2G

Specialized Overview

The NCN8024DTBR2G is a single smart card interface IC designed for 3.0 V and 5.0 V reader/writer applications. It provides three bidirectional buffered I/O level shifters (C4, C7, C8) and a regulated card power supply supporting up to 75 mA at 3.3 V or 5.0 V. The device features an independent controller interface power supply range of 2.7 V to 5.5 V and supports clock frequencies up to 18 MHz via internal division ratios of 1/1, 1/2, 1/4, and 1/8. It includes thermal and short-circuit protection on all card pins, ESD protection up to 8 kV HBM, and an interrupt signal for card presence and fault detection.

Specialized Feature Summary

• Fully compatible with ISO 7816-3, EMV, and NDS conditional access standards.
• Integrates three bidirectional buffered I/O level shifters for card pin connections.
• Includes thermal and short-circuit protection mechanisms on all card pins.
• Supports automatic device deactivation in case of overload, overheating, or power supply dropout.

Specialized Applications

• Set-Top Boxes Conditional Access & Pay-TV
• Conditional Access Modules (CAM)
• POS / ATM systems
• Access Control and Identification

Specialized Procurement Notes

Verify the package type matches the required PCB footprint, as the NCN8024 is available in SOIC-28 and TSSOP-28 formats. Confirm that the specific ordering suffix corresponds to the desired tape and reel configuration. Ensure compatibility with the target system's voltage levels and protocol requirements before finalizing procurement.

Specialized Selection Notes

Select this component for applications requiring strict compliance with ISO 7816-3 and EMV standards. Consider the integrated DC/DC converter and level shifters when designing for mixed-voltage environments between the microcontroller and the smart card. Evaluate the need for external undervoltage lockout adjustment based on the host controller's minimum operating voltage.

Specialized Part Context

The NCN8024 is part of onsemi's smart card interface family, specifically engineered for secure access control and payment terminals. It integrates essential functions such as power regulation, clock generation, and signal translation into a single package, reducing the bill of materials and board space compared to discrete solutions.

Specialized Replacement Considerations

Check for direct pin-to-pin replacements within the same product line. Verify that any substitute component maintains compatibility with ISO 7816-3 and EMV electrical specifications. Ensure the alternative offers similar current sourcing capabilities and protection features.