TDA8034HN/C1,118

Specialized Overview

The TDA8034HN/C1,118 is a smart card interface IC designed for asynchronous and synchronous operations at 5 V, 3 V, or 1.8 V. It provides supply, protection, and control functions between the card and microcontroller using minimal external components. The device operates within an ambient temperature range of -25 °C to +85 °C and features a total power dissipation of 0.25 W. Supply currents are typically 35 µA in shutdown mode and 2 mA in active mode. The interface supports clock frequencies up to 26 MHz externally or via internal oscillator division.

Specialized Feature Summary

• Integrated HVQFN24 package with low power consumption in deep shutdown mode
• Three protected half-duplex bidirectional buffered I/O lines for card communication
• VCC regulation with controlled rise/fall times and filtered overload detection
• Automatic activation/deactivation sequences triggered by fault conditions

Specialized Applications

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

Specialized Procurement Notes

Verify the specific ordering suffix C1,118 against the manufacturer's current production status. Confirm that the component meets RoHS compliance requirements for your target market. Ensure the HVQFN24 package dimensions align with your PCB footprint design rules before finalizing procurement orders.

Specialized Selection Notes

Select this component when a cost-effective analog interface is required for ISO 7816 compatible cards. Ensure the system controller can handle the required voltage levels for VDDP, VDD, and VDD(INTF). Verify that the application environment stays within the specified -25 °C to +85 °C operating temperature range for reliable performance.

Specialized Part Context

This part belongs to the TDA8034HN series from NXP Semiconductors. It serves as a complete solution for managing smart card interfaces, replacing older discrete designs. The C1 version is compliant with standard specifications, while the C2 variant offers EMVCo 4.3 compatibility. Both versions share identical functionality and pinouts.

Specialized Replacement Considerations

The TDA8034AT is listed as a direct replacement option. Verify pin compatibility and electrical characteristics before substitution. Ensure the alternative part number meets the same package and thermal requirements.