TDA8026ET/C2,551

The TDA8026ET/C2,551 is a multiple Smart Card Slot Interface IC for addressing multiple smart card slots in a Point Of Sales (POS) terminal. It can address up to two main cards (synchronous or asynchronous smart cards supported) and up to four security access modules (SAMs). Its packaging supports the latest payment terminal security requirements. The VDD, VDD(INTF) supply voltages can be applied to the device at any time, in any sequence. All interface signals to the system controller are referenced to the VDD(INTF) supply voltage which can be lower or higher than VDD. The voltage supervisor can be used to perform power-on resets (POR) and supply drop detection during a card session. The supervisors control the internal regulated supply voltage (VDD(INTREGD)) and the microcontroller interface supply voltage (VDD(INTF)) to ensure problem-free operation of the TDA8026.

• Dedicated microcontroller interface supply voltage (VDD(INTF))
• Shutdown mode ensures very low power consumption when the TDA8026 is inactive
• Programmable power reduction modes triggered when the card slots are inactive
• Two I²C-bus controlled auxiliary I/O lines
• Thermal protection and short-circuit protection on all card contacts
• Current limitation on pin CLK
• 20MHz Clock input