TDA8026ET/C2,551

The TDA8026ET/C2,551 by NXP Semiconductors is a cost-effective analog interface IC designed for addressing multiple smart card slots, commonly found in Point of Sales (POS) terminals. It supports up to two main cards and four Security Access Modules (SAMs), meeting the latest payment terminal security requirements.

This IC features an I2C-bus controlled interface and operates within a supply voltage range of 2.7 V to 5.5 V. It offers programmable power reduction modes and VCC(n) generation via a DC-to-DC converter, allowing for efficient power management. The TDA8026ET/C2,551 includes dedicated clock input pins and transparent I/O lines for microcontroller communication. It provides five protected, half-duplex, bidirectional, buffered I/O lines with current limitation and a maximum frequency of 1 MHz, along with two I2C-bus controlled auxiliary I/O lines.

Key electrical features include VCC(n) regulation for card slots at ICC ≤ 55 mA, supporting 5 V, 3 V, or 1.8 V outputs with tight tolerances. It also boasts thermal and short-circuit protection on all card contacts, automatic activation/deactivation sequences, and enhanced ElectroStatic Discharge (ESD) protection up to 6 kV on the card-side. The device supports card clock generation up to 20 MHz, dividable by 1, 2, 4, or 5, and offers a clock frequency between 1 MHz and 2.2 MHz in card low-power mode.

Packaged in a 64-TFBGA (7x7) format, the TDA8026ET/C2,551 is designed for surface mount applications. It is compatible with ISO 7816-3 and EMV 4.3 payment systems, making it suitable for secure transaction environments.