ST8024LACDR

Specialized Overview

The ST8024LACDR is a smart card interface IC from STMicroelectronics designed to minimize microprocessor hardware and software complexity in applications requiring smart cards. It supports asynchronous Class A, B, and C smart cards and is compatible with ISO 7816, GSM 11-11, and EMV 4.2 standards. The device operates with a single supply voltage of 1.8 V, 3 V, or 5 V and features an integrated 26 MHz crystal oscillator. It provides clock generation for cards up to 20 MHz and includes enhanced ESD protection on the card side exceeding 6 kV. The component is housed in a 28-pin SO package.

Specialized Feature Summary

• Integrated step-up converter for VCC generation with regulated card supply voltage capabilities
• Three specifically protected half-duplex bi-directional buffered I/O lines for card contacts
• Automatic activation and deactivation sequences initiated by software or hardware events
• Built-in debounce on card presence contacts and filtered overload detection

Specialized Applications

• Set-top boxes
• Electronic payment systems
• Pay TV interfaces
• Identification cards

Specialized Procurement Notes

Verify the specific suffix AC against the official datasheet to confirm pinout and electrical characteristics match the design requirements. Ensure the 28-pin SO package dimensions align with the PCB footprint. Confirm RoHS compliance status through the manufacturer's current documentation before finalizing procurement.

Specialized Selection Notes

Select this component when a complete low-cost analog interface for asynchronous smart cards is required. It is suitable for designs needing minimal external components for supply protection and control functions. Consider the integrated oscillator and ESD protection if board space and component count are constrained.

Specialized Part Context

The ST8024LACDR belongs to the ST8024L series of smart card interface ICs. It is functionally compatible with the ST8024 and ST8024LCDR, with minor exceptions regarding threshold values. This series is part of STMicroelectronics' broader portfolio of interface ICs focused on simplifying smart card integration in consumer electronics.

Specialized Replacement Considerations

The ST8024LCDR is a compatible alternative within the same series. Verify that the threshold differences do not impact system performance. No other direct substitutes are confirmed in public documentation.