DS8005-RRX+

DS8005-RRX+ is a dual smart card interface. It is a low-cost, dual analogue front-end for an IC card reader interface that needs to communicate with two smart cards in a mutually exclusive fashion. The analogue interface is designed for use in ISO 7816, EMV®, and B-CAS applications. This device is functionally similar to two DS8024s with external multiplexing to select the active interface but also includes low power and 1.8V card support. Additionally, this device is designed for applications where the C4/C8 (AUX1/AUX2) contacts are not required on either card interface. This device is designed to be used with microcontrollers that contain an ISO 7816 UART, or have the bandwidth to run this protocol in software by bit-banging IO ports. It is used in applications such as set-top box, conditional access, telecommunications, pay television, access control, and financial terminals.

• 1.8V, 3V, 5V card voltage supported, low power stop mode
• Low power active mode, pres polarity, low active-mode current
• Analog interface and level shifting for IC card communication
• ±8kV (min) ESD (HBM) protection on card interfaces
• Automatic card activation and deactivation controlled by dedicated internal sequencer
• I/O lines from host directly level shifted for smart card communication
• High-current, short-circuit and high-temperature protection
• Internal multiplexing allows one ISO 7816 UART
• Implementation to control two smart card sockets
• Operating temperature range from -40°C to +85°C, 28-pin SO package

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