TDA8034HN/C1,151

Specialized Overview

The TDA8034HN/C1,151 is a low-power smart card interface IC designed for asynchronous and synchronous applications. It operates with supply voltages of 5 V, 3 V, or 1.8 V, regulated via pins VCC_SEL1 and VCC_SEL2. The device provides three protected half-duplex bidirectional buffered I/O lines (C4, C7, C8) and supports clock frequencies up to 20 MHz using an internal crystal oscillator or external input up to 26 MHz. It features thermal and short-circuit protection, enhanced ESD protection exceeding 8 kV, and built-in debouncing for card presence detection. The component is housed in an HVQFN24 package.

Specialized Feature Summary

• Provides complete analog interface functions between smart cards and microcontrollers with minimal external components.
• Supports ISO 7816, NDS, and EMVCo 4.3 payment systems compatibility.
• Includes automatic activation and deactivation sequences triggered by fault conditions such as short-circuits or overheating.

Specialized Applications

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

Specialized Procurement Notes

Verify the specific ordering suffix /C1,151 against the manufacturer's current documentation to confirm compliance with EMVCo 4.3 standards, as the datasheet distinguishes between C1 and C2 versions. Ensure that the procurement channel provides original manufacturer packaging to maintain component integrity and traceability during assembly.

Specialized Selection Notes

Select this component when designing interfaces requiring support for multiple smart card voltage levels (1.8 V, 3 V, 5 V) within a single design architecture. Consider the HVQFN24 package dimensions if space constraints are critical. Verify that the system controller can manage the required activation sequences and that the application environment stays within the specified -25 °C to +85 °C operating temperature range.

Specialized Part Context

This part belongs to the TDA8034HN family of smart card interface controllers manufactured by NXP Semiconductors. The C1 version specifically denotes compliance with EMVCo 4.3 standards, distinguishing it from other variants like the C2 version. It serves as a dedicated bridge for managing power, data, and control signals for contact-based smart cards in embedded systems.

Specialized Replacement Considerations

The ST8034HC is a documented alternative offering similar functionality for asynchronous and synchronous smartcards. Both devices operate at 5 V, 3 V, or 1.8 V and provide comparable protection and control features. Verify pinout compatibility and software configuration requirements before substituting.