TDA8035HN/C2/S1J

Specialized Overview

The TDA8035HN/C2/S1J is a high-integrated, low-power smart card interface IC designed for contact readers. It operates from a VDDP supply of 2.7 V to 5.5 V and an interface supply of 1.6 V to 3.6 V. The device generates regulated card supply voltages (VCC) of 5 V, 3 V, or 1.8 V with ±5% tolerance using an internal DC-to-DC converter. It supports clock frequencies up to 20 MHz via external input or crystal oscillator. Power consumption in deep shutdown mode is typically 0.13 µA. The component complies with ISO 7816, NDS, and EMV 4.3 standards.

Specialized Feature Summary

• Compliant with EMV 4.3 standard
• Integrated thermal and short-circuit protection on all card contacts
• Enhanced card-side ESD protection exceeding 8 kV
• Automatic activation and deactivation sequences triggered by software or hardware faults

Specialized Applications

• Pay TV systems
• Electronic payment terminals
• Identification devices
• Banking IC card readers

Specialized Procurement Notes

Verify the specific ordering suffix matches the required packaging configuration. Confirm that the C2 version designation aligns with project requirements for EMV 4.3 compliance. Ensure the HVQFN32 package dimensions fit the PCB layout constraints. Cross-reference the datasheet revision date against manufacturing specifications.

Specialized Selection Notes

Select this variant when EMV 4.3 certification is mandatory for the application. Verify that the host system can support the required voltage domains and clock configurations. Ensure adequate decoupling capacitors are available for the DC-to-DC converter stages. Check compatibility with existing TDA8024 or TDA8034 designs if migration is planned.

Specialized Part Context

This component belongs to the TDA8035HN series, serving as a successor to the TDA8024. It provides cost-efficient integration for smart card readers while maintaining backward software compatibility with previous generations. The C2 version specifically addresses enhanced security standards required by modern payment ecosystems.

Specialized Replacement Considerations

TDA8035HN/C1/S1J

Specialized FAQ

What distinguishes the C2 version from other variants?

The C2 version is compliant with the EMV 4.3 standard, whereas other versions may only comply with ISO 7816 and NDS.

How is the card clock frequency determined?

The frequency is selected via CLKDIV1 and CLKDIV2 pins, allowing outputs of fXTAL, fXTAL/2, fXTAL/4, or fXTAL/8, with a maximum generation speed of 20 MHz.

What protection mechanisms are included for the smart card?

The IC includes thermal protection, short-circuit detection on all contacts, current limitation, and enhanced ESD protection greater than 8 kV.