●The ST8034T/ST8034AT/ST8034P/ST8034C devices are complete low-cost analog interfaces for asynchronous and synchronous smartcards operating at a supply voltage of 5 V or 3 V (or even 1.8 V in the case of ST8034P).
●The ST8034T/ST8034AT/ST8034P/ST8034C devices can be placed between the card and the microcontroller to provide all supply, protection, detection and control functions, with just a few external components.
●Key Features
● Complete smartcard interface
● ISO 7816 and EMV™ 4.3 payment systems compatible
● One protected half-duplex bidirectional buffered I/O line to the smartcard
● 5 V or 3 V (or 1.8 V in case of ST8034P) selectable smartcard supply voltage (VCC ). Ensures controlled VCC rise and fall times and provides smart overload detection with glitch immunity.
● Optional chip select function allows the device interface to be isolated from the host microcontroller signals - allows parallel combination of the card interface devices (ST8034C)
● Card clock generation by integrated crystal oscillator or from external clock source
● Card clock frequency up to 20 MHz, programmable by CLKDIV pin, with synchronous frequency changes
● Optional VCC_SEL input for pin-controlled selection of VCC ; 5 V or 3 V or 1.8 V (ST8034P)
● Automatic card activation and deactivation sequences initiated by the microcontroller
● Emergency deactivation sequences initiated by a card supply short-circuit, card take-off, falling VDD , VDDP , or VDD(INTF) or by the interface device overheating
● Voltage supply supervisors
● With a fixed threshold (VDD , VDDP , and VDD(INTF) )
● Optionally with an external resistor divider to set the VDD(INTF) threshold (PORADJ pin; ST8034P and ST8034C)
● Multipurpose card status signalOFF
● Non-inverted card reset pin RST driven by the RSTIN input
● Thermal and short-circuit protection of all card contacts
● Card presence detection contacts debounced
● Enhanced card side ESD protection of 8 kV
● Common SO16 3.9 x 9.9 mm body or a space-saving QFN16 3 x 3 mm package
● Temperature range -25 to +85 °C
