ST8034HNQR

ST8034HNQR is a complete low-cost analogue interface for asynchronous and synchronous smartcards operating at a supply voltage of 5V, 3V or 1.8V. This device can be placed between the card and the microcontroller to provide all supply, protection, detection and control functions, with just a few external components. It is used in applications such as set-top boxes, pay-TV, identification, banking, and tachographs.

• Complete smartcard interface, ISO 7816, NDS and EMV 4.3 payment systems compatible
• Three protected half-duplex bidirectional buffered I/O lines to the smartcard
• Very low power consumption in deep shutdown mode
• Card clock generation by integrated crystal oscillator or from external clock source
• Automatic activation and deactivation sequences initiated by the microcontroller
• Multipurpose card status signal OFF, card presence detection contacts debounced
• Thermal and short-circuit protection of all card contacts, enhanced card side ESD protection of 8kV
• Supply current, power is 1.5mA maximum at (active mode, fCLK = fXTAL/2, no ICC load)
• Input/output frequency is 1MHz maximum, delay time is 200ns maximum
• Operating temperature range from -25°C to +85°C, QFN24 package