ST8034HN, ST8034HC 24-pin smartcard interfaces Datasheet - production data Automatic activation and deactivation sequences initiated by the microcontroller Emergency deactivation sequences initiated by a card supply short-circuit, card take-off, falling V , V , or V or by the DD DDP DD(INTF) interface device overheating Voltage supply supervisors with a fixed threshold (V , V ) DD DDP with an external resistor divider to set the V threshold (PORADJ pin) DD(INTF) Multipurpose card status signal OFF Non-inverted card reset pin RST driven by the RSTIN input QFN24 4 x 4 x 0.8 mm Thermal and short-circuit protection of all card contacts Card presence detection contacts debounced Enhanced card side ESD protection of 8 kV Features Space saving QFN24 4 x 4 x 0.8 mm package Complete smartcard interface Temperature range -25 to +85 C ISO 7816, NDS and EMV 4.3 payment systems compatible Applications Three protected half-duplex bidirectional buffered I/O lines to the smartcard Smartcard readers for 5 V, 3 V or 1.8 V supply voltage for the Set-top boxes smartcard (V ), pin-selectable. Ensures CC Pay-TV controlled V rise and fall times and provides CC Identification smart overload detection with glitch immunity. Banking Very low power consumption in deep shutdown mode Tachographs Chip select function allows the device interface to be isolated from the microcontroller signals - allows parallel combination of the card interface devices (ST8034HC) Card clock generation by integrated crystal oscillator or from external clock source Card clock frequency up to 20 MHz, programmable by CLKDIV1 and CLKDIV2 pins (ST8034HN) or by CLKDIV pin (ST8034HC), with synchronous frequency changes October 2013 DocID024511 Rev 2 1/31 This is information on a product in full production. www.st.com 1Contents ST8034HN, ST8034HC Contents 1 Description . 5 2 Block diagrams . 6 3 Pin description . 8 4 Maximum ratings . 10 5 Electrical characteristics 11 Electrical characteristics over recommended operating conditions . 11 6 Functional description 19 6.1 Power supplies . 19 6.2 Voltage supervisor 19 6.3 Clock circuits 20 6.4 Input and output circuits 21 6.5 Shutdown mode 22 6.6 Deep shutdown mode . 23 6.7 Activation sequence . 23 6.8 Deactivation sequence . 24 6.9 V generator . 25 CC 6.10 Fault detection . 26 6.11 VCC SEL pin-programmed card supply voltage (V ) 27 CC 6.12 Chip select (ST8034HC only) 27 7 Package information 28 8 Tape and reel information 30 9 Revision history . 30 2/31 DocID024511 Rev 2