ST8034TDT

Specialized Overview

The ST8034TDT is a smart card interface IC from STMicroelectronics, designed for asynchronous and synchronous smartcard applications. It operates at a fixed supply voltage of 5 V and draws a maximum operating current of 70 mA. The device dissipates up to 250 mW of power and functions within a temperature range of -25 °C to +85 °C. Housed in a 16-pin SOIC package with SMD/SMT mounting style, it supports RoHS compliance and includes moisture sensitivity features.

Specialized Feature Summary

• Provides complete analog interface functions between the smartcard and microcontroller, including supply, protection, detection, and control.
• Compatible with ISO 7816 and EMV 4.3 payment systems standards.
• Features one protected half-duplex bidirectional buffered I/O line to the smartcard.
• Includes integrated crystal oscillator or external clock source capability for card clock generation up to 20 MHz.

Specialized Applications

• Point of Sale (POS) terminals
• Set-top boxes
• Pay TV systems
• Identification devices
• Banking equipment

Specialized Procurement Notes

Verify the specific suffix 'DT' against the manufacturer's official documentation to confirm packaging details, such as reel specifications, as these can vary by region and production batch. Ensure the component meets the required RoHS standards and moisture sensitivity levels for your assembly process. Cross-reference the Mouser number 511-st8034atdt if sourcing through distributors to ensure part authenticity and correct revision.

Specialized Selection Notes

Select this component when a dedicated smartcard interface is needed for 5 V systems requiring ISO 7816 compliance. Consider the ST8034AT variant if automatic activation sequences are required, or the ST8034P if 1.8 V operation is necessary. Evaluate the SOIC-16 package size constraints against available PCB space. Verify that the host microcontroller can support the required clock frequencies and I/O configurations.

Specialized Part Context

The ST8034TDT belongs to the ST8034 family of low-cost analog interfaces for smartcards. This series includes variants like ST8034T, ST8034AT, ST8034P, and ST8034C, which offer different voltage options and chip select functionalities. The ST8034TDT specifically denotes the standard version in a tape-and-reel packaging format, suitable for automated surface-mount assembly processes.

Specialized Replacement Considerations

Direct substitutes include other members of the ST8034 family such as ST8034T, ST8034AT, ST8034P, and ST8034C, depending on voltage and feature requirements. Verify pin compatibility and electrical characteristics before substitution. No alternative manufacturers are explicitly documented as direct replacements in the provided data.