TDA8037T/C1Y

Specialized Overview

The TDA8037T/C1Y is a low-power smart card interface IC designed for contact readers. It operates within a supply voltage range of 3 V to 3.6 V and provides a regulated 3 V output for the smart card. The device supports external clock inputs up to 20 MHz and generates card clocks at frequencies of fCLKIN or fCLKIN/2. It features three protected half-duplex bidirectional buffered I/O lines (C4, C7, C8) with a maximum data frequency of 1.5 MHz. Shutdown mode current consumption is typically 250 µA. The component includes thermal protection, short-circuit detection, and enhanced ESD protection exceeding 8 kV on card contacts.

Specialized Feature Summary

• Provides comprehensive protection for contact smart cards through thermal monitoring, short-circuit detection, and high-level electrostatic discharge resistance.
• Enables easy integration into reader designs via software compatibility with previous generations and automatic activation/deactivation sequences triggered by hardware faults or commands.
• Supports parallel operation of multiple devices using a dedicated chip select input and offers flexible clock generation capabilities from an external source.

Specialized Applications

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

Specialized Procurement Notes

Verify the specific ordering suffix 'Y' against official NXP documentation to confirm package type and environmental compliance details. Ensure the selected variant matches the required pin configuration for the target application design.

Specialized Selection Notes

Select this component for applications requiring a cost-efficient successor to the TDA8035 with low power consumption in shutdown mode. Consider the SO28 package if footprint compatibility with the TDA8024T is necessary for existing board layouts.

Specialized Part Context

The TDA8037 serves as the direct successor to the established TDA8035 integrated contact smart card reader IC. It maintains software compatibility with the TDA8024, TDA8034, and TDA8035 families while offering improved power efficiency and security features for modern contact reader implementations.

Specialized Replacement Considerations

The TDA8037 is the designated replacement for the TDA8035. Designers migrating from older models should verify that the new pinout and control signals align with their existing firmware and hardware architecture.

Specialized FAQ

Is the TDA8037 software compatible with previous TDA series ICs?

Yes, the TDA8037 is software compatible with the TDA8024, TDA8034, and TDA8035.

What is the maximum external clock frequency supported by the TDA8037?

The device supports an external clock input frequency of up to 20 MHz.

How does the TDA8037 handle card presence detection?

It features a built-in debouncing mechanism on the card presence contact input (PRESN) with a typical debounce time of approximately 4.05 ms.