73S8010C-IM/F

Overview

The 73S8010C is a single smart card interface IC compliant with ISO-7816-3 and EMV 4.0 specifications. It interfaces with the host via a fast-mode 400 kbps I2C bus, supporting up to eight parallel devices. The device generates card clock signals using an external crystal or system controller clock up to 27 MHz. An internal inductor-based DC-DC converter supplies 3 V or 5 V to the card, delivering up to 100 mA with over 80% efficiency at 65 mA load. The digital power supply (VDD) operates between 2.7 V and 3.6 V. The IC includes voltage supervisors for VCC and VDD, true over-current detection up to 150 mA, and auxiliary I/O lines for C4/C8 contacts.

Feature Summary

• Inductor-based DC-DC converter provides higher current and efficiency than charge-pump alternatives, suitable for high-current cards and SAMs.
• Integrated ISO-7816-3 activation/deactivation sequencer with emergency automated deactivation upon card removal or fault detection.
• Fast-mode 400 kbps I2C slave bus allows connection of up to eight devices in parallel with configurable address selection.
• Comprehensive protection features include dual voltage supervisors, true over-current detection, and over-temperature monitoring.

Applications

• Conditional Access and Pay-per-View slots in Set-Top-Boxes and DVD/HDD Recorders
• Point of Sales and Transaction Terminals
• EMV slots in cell phones and PDAs

Procurement Notes

Verify component authenticity through authorized Analog Devices or Maxim Integrated distribution channels. Confirm package type availability, as the device is offered in SO28 and 32-QFN formats. Ensure ordering suffixes match specific thermal or mechanical requirements defined in the manufacturer's documentation. Request original datasheets to validate revision levels before integration into production designs.

Selection Notes

Select the 73S8010C when a cost-effective solution for battery-powered smart card readers is required. The inductive DC-DC converter makes it ideal for applications demanding high current delivery to cards and SAMs. Choose this IC if the design requires compliance with EMV 4.0 standards and needs integrated voltage supervision and fault protection mechanisms within a small footprint.

Part Context

Originally developed by Teridian Semiconductor Corporation, the 73S8010C was acquired by Maxim Integrated, which is now part of Analog Devices Inc. This component belongs to the family of smart card interface ICs designed to simplify system integration by combining electrical compliance, power management, and control logic into a single chip.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Analog Devices resources for potential obsolescence management or pin-compatible alternatives within the same product family.