TDA8035HN/C1,157

Specialized Overview

The TDA8035HN/C1,157 is a high-integrated smart card interface IC designed for contact readers. It operates with a VDDP supply voltage range of 2.7 V to 5.5 V and an interface supply (VDD(INTF)) of 1.6 V to 3.6 V. The device generates regulated card supply voltages of 5 V, 3 V, or 1.8 V via an internal DC-to-DC converter. Power consumption varies by mode: deep shutdown current is typically 3 µA, while active mode currents reach up to 220 mA at 5 V with full load. It supports clock frequencies up to 20 MHz and functions within an ambient temperature range of -25 °C to +85 °C.

Specialized Feature Summary

• Provides thermal and short-circuit protection on all card contacts with automatic activation and deactivation sequences triggered by hardware faults or software commands.
• Includes enhanced electrostatic discharge (ESD) protection exceeding 8 kV on the card side and integrated supply supervision for power-on reset and drop detection.
• Features three protected half-duplex bidirectional buffered I/O lines with built-in debouncing on the card presence contact and chip select capability for parallel operation.

Specialized Applications

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

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm compliance requirements. The C1 version differs from the C2 version regarding EMV 4.3 standard compliance. Ensure the component matches the HVQFN32 package dimensions and terminal count specified in the official documentation before integration into the design.

Specialized Selection Notes

Select this component for applications requiring low standby power consumption and high security features for contact smart cards. Verify that the external capacitor values meet the ESR specifications required for the DC-to-DC converter stability. Confirm compatibility with existing ISO 7816 interfaces if migrating from legacy TDA8024 designs.

Specialized Part Context

This part belongs to the TDA8035HN series manufactured by NXP Semiconductors. It serves as a cost-efficient successor to the TDA8024 and TDA8034 integrated contact smart card reader ICs. The device maintains software compatibility with previous generations while offering improved power efficiency and enhanced protection mechanisms for modern smart card applications.

Specialized Replacement Considerations

The TDA8035HN/C1/S1 and TDA8035HN/C2/S1 are alternative versions within the same family. The C2 version offers compliance with the EMV 4.3 standard. Direct substitution requires verifying the specific regulatory compliance needs of the target application.