73S8014R

www.DataSheet4U.com 73S8014R Smart Card Interface Simplifying System Integration™ DATA SHEET September 2008 DESCRIPTION The Teridian 73S8014R is a single smart card (ICC) interface circuit, firmware compatible with 8024-type devices for configurations where only asynchronous cards must be supported. It is derived from the 73S8024RN industrystandard electrical interface. The 73S8014R has been optimized to match most of the typical Set-Top-Box / A/V Conditional Access applications. Optimization essentially involved a smaller pin-count, support for single I/O, and maximum card current of 65mA (ISO-7816 / EMV compliance). The 73S8014R interfaces with the host processor through the same bus (digital I/Os) as the 73S8024RN, which is compatible with any other 8024-type IC. As a result, the 73S8014R is a very attractive cost-reduction path from traditional 8024 ICs. The 73S8014R has been designed to provide full electrical compliance with ISO 7816-3 and EMV 4.0 specifications. Interfacing with the system controller is done through a control bus, composed of digital inputs to control the interface, and one interrupt output to inform the system controller of the card presence and faults. The card clock can be generated by an on-chip oscillator using an external crystal or by connection to an externally supplied clock signal. The 73S8014R incorporates an ISO 7816-3 activation/deactivation sequencer that controls the card signals. Level-shifters drive the card signals with the selecte...