73S8009C Versatile Power Management and Smart Card Interface IC DATA SHEET Simplifying System Integration DS 8009C 025 February 2010 When power is supplied by V or V , the PC BAT 73S8009C is controlled by the ON OFF pin in the manner of a push-on/push-off button action. The OFF REQ and OFF ACK signals provide DESCRIPTION handshaking and control of the power off function by the controller. A SPST momentary The Teridian 73S8009C is a versatile power switch to ground connected to ON OFF is all that management and single smart card interface circuit is required for power control. Alternatively, the that is ideally suited for smart card reader products off state can be initiated from the host controller that are battery and/or USB bus-powered. In through OFF ACK. When the 73S8009C is off, addition to its EMV 4.1 and ISO-7816-3 compliant the current is less than 1 A. smart card-to-host interface circuitry it provides control, conversion, and regulation of power for a When power is supplied via the V pin, the BUS companion host processor circuit and power for the 73S8009C is unconditionally in the power-on smart card. The 73S8009C can operate from a state regardless of the action of the ON/OFF single 2.7 V to 6.5 V source supply, or a switch or OFF ACK signal. Power supply current combination of battery power (4.0 V to 6.5 V) and operating from the V power when V is off is BUS CC USB power (4.4 V to 5.5 V). less than 500 A to conform to USB SUSPEND requirements. The 73S8009C supports 5 V, 3 V, and 1.8 V smart cards. The smart card signals for RST, CLK, IO, APPLICATIONS and auxiliary signals AUX1 and AUX2 are level-shifted to the selected V value. Although CC Handheld PINpad smart card readers for the host controller is required to handle the e-commerce, secure login, e-health, Govt ID detailed signal timing for activation and de- and loyalty activation under normal conditions, the 73S8009C Point of Sales & Transaction Terminals blocks any spurious signals on CLK, RST and IO General Purpose Smart Card Readers during power-up (as V rises) and power-down. CC The 73S8009C contains two handshaking signals ADVANTAGES for the controller: OFF indicates that a card is present, and RDY indicates that V is at an CC Ideally suited to USB bus-powered acceptable value. The 73S8009C will perform applications emergency deactivation upon card removal, Ideal for combo bus-powered and/or voltage faults, or over-current events self-powered systems The power management circuitry of the 73S8009C Automatic battery switchover in bus allows operation from a wide range of voltages powered systems from multiple sources. V is converted by using PC an inductive, step-up power converter to the Very low-power mode (sub-A) with intermediate voltage, V . V is used by linear P P push-button ON/OFF switch input with voltage regulators and switches to create the de-bounce voltages V and as required, V . V is used by DD CC DD Provides 3.3 V / 40 mA power to external the 73S8009C and is also made available for the circuitry (host processor or peripheral circuits) companion controller circuit or other external circuits. The V and V pins provide inputs BAT BUS The inductor-based DC-DC converter provides from alternate power sources as required. An higher current and efficiency than usual internal switch in the 73S8009C acts as a charge-pump capacitor-based converters: single-pole, double-throw switch that selects either Ideal for battery-powered applications V or V to be connected to V . When the BAT BUS PC voltage on V is zero, V is connected to V . BUS BAT PC When voltage is applied to V , the switch selects BUS as the source for power. V BUS Rev. 1.5 2010 Teridian Semiconductor Corporation 1 73S8009C Data Sheet DS 8009C 025 FEATURES Smart card Interface: DC-DC Converter: Complies with ISO-7816-3 and EMV 4.1 Step-up converter and derivative standards Generates an intermediary voltage V P A DC-DC Converter provides 1.8 V/3 V/5 V Requires a single 10 H Inductor to the card from a wide range of external power supply inputs System Power Supply requirements: Provides up to 65 mA to the card When using VBUS: Standard USB +5 ISO-7816-3 Card emergency deactivation input (range +4.4 V to 5.5 V) sequencer When using V : 4.0 V to 6.5 V BAT 2 voltage supervisors detect voltage drops When using V : 2.7 V to 6.5 V PC on the V (card) and V (digital) power CC DD Automated detection of voltage presence - supplies Priority on VBUS over VBAT Card over-current detection 150 mA max. 2 card detection inputs, 1 for either user Power Supply Output: polarity V supply output available to power up DD Auxiliary I/O lines for synchronous and external circuitry: 3.3 V 0.3 V, 40 mA ISO-7816-12 USB card support Industrial temperature range Card CLK clock frequency up to 20 MHz 6 kV ESD and short circuit protection on Small format QFN package the card interface RoHS compliant (6/6) lead-free package System Controller Interface: 5 Signal images of the card signals (RSTIN, CLKIN, I/OUC, AUX1UC and AUX2UC) 2 Inputs activate and select the card voltage (CMDVCC% and CMDVCC ) 2 Outputs, interrupt to the system controller (OFF and RDY), to inform the system controller of the card presence / faults and status of the interface 1 Chip Select input 2 Handshaking signals for proper shutdown sequencing of all output supply voltages (OFF REQ, OFF ACK) ON/OFF Main System Switch: Input for an SPST momentary switch to ground 2 Rev. 1.5