TDA8026ET/C2,557

Specialized Overview

The TDA8026ET/C2,557 is a cost-effective analog interface IC designed for addressing multiple smart card slots in Point of Sale terminals. It supports up to two main cards and four Security Access Modules within a TFBGA64 package. The device operates with a supply voltage between 2.7 V and 5.5 V and features an I2C-bus controlled interface. It includes a DC-to-DC converter generating VCC(n) at 5 V, 3 V, or 1.8 V ±5% with current spikes up to 40 nAs. Key electrical parameters include a shutdown current of 25 µA typical, active mode current of 210 mA typical, and a maximum clock frequency of 1 MHz on buffered I/O lines.

Specialized Feature Summary

• I2C-bus controlled interface for microcontroller communication
• Integrated DC-to-DC converter for flexible card slot power generation
• Enhanced ESD protection on card-side contacts up to 6 kV
• Programmable power reduction modes triggered by inactive card slots

Specialized Applications

• Point Of Sale terminals
• Multiple SAM contact readers

Specialized Procurement Notes

Verify the ordering suffix matches the required version, as the C3 variant offers EMVCo 4.31 compliance while maintaining identical functionality. Confirm the package designation corresponds to the TFBGA64 plastic thin fine-pitch ball grid array format. Ensure the component source aligns with NXP Semiconductors specifications for payment terminal security requirements.

Specialized Selection Notes

Select this model when designing POS systems requiring support for multiple synchronous or asynchronous smart cards alongside Security Access Modules. The integrated DC-to-DC converter simplifies board layout by handling voltage regulation for up to five card slots. Consider the C2 version for standard compatibility or C3 if specific EMVCo certification alignment is prioritized.

Specialized Part Context

This component belongs to the TDA8026 series of multiple smart card slot interface ICs manufactured by NXP Semiconductors. It serves as an analog interface bridge between system controllers and ISO 7816-compliant smart cards. The series is engineered to meet modern payment terminal security standards while providing a compact solution for multi-slot architectures.

Specialized Replacement Considerations

The TDA8026ET/C3 is a functional equivalent offering EMVCo 4.31 compliance. Both versions utilize the same TFBGA64 package and pinout, allowing for direct substitution without hardware redesign.