TDA8034HN/C2J

Specialized Overview

The TDA8034HN/C2J is a smart card interface IC in an HVQFN24 package. It supports VCC supply voltages of 5 V, 3 V, or 1.8 V with ±5% regulation. The device operates within an ambient temperature range of -25 °C to +85 °C and features enhanced ESD protection exceeding 8 kV on card contacts. It provides three protected half-duplex bidirectional buffered I/O lines and includes thermal and short-circuit protection for all card contacts. Clock generation reaches up to 20 MHz using external crystals or inputs up to 26 MHz.

Specialized Feature Summary

• Compliant with EMVCo 4.3 payment systems
• Integrated crystal oscillator or external clock input support
• Automatic activation and deactivation sequences triggered by hardware faults
• Built-in debouncing on card presence contacts

Specialized Applications

• Pay TV systems
• Electronic payment terminals
• Identification readers
• Bank card readers

Specialized Procurement Notes

Verify the C2 suffix indicates EMVCo 4.3 compliance. Confirm the HVQFN24 package dimensions match the design footprint. Ensure power supply decoupling capacitors meet the low ESR requirements specified in the datasheet for stable operation.

Specialized Selection Notes

Select this component when EMVCo 4.3 compatibility is required. Verify that the system controller can handle the specific activation and deactivation timing sequences. Ensure the microcontroller interface voltage aligns with the VDD(INTF) supply range for proper logic level translation.

Specialized Part Context

This part belongs to the TDA8034 family of low-power smart card interfaces. The C2 version specifically ensures compliance with the latest EMVCo 4.3 standards compared to earlier revisions. It serves as a complete analog interface solution between the smart card and the host microcontroller.

Specialized Replacement Considerations

TDA8034HN/C1 is functionally identical but lacks EMVCo 4.3 compliance.