ST8034HNQR

24-pin smartcard interfaces

Parameters

Supply Voltage Min Volt	4.0
Supply Voltage Max Volt	6.5
Operating Temp Min Celsius	-25.0
Operating Temp Max Celsius	85.0
ECCN US	EAR99
ECCN EU	NEC
Packing Type	Tape And Reel
RoHs compliant	Ecopack3
Grade	Industrial
Package Name	HVQFN24 4x4x0-85

Description

The ST8034HN and ST8034HC devices are complete low-cost analog interfaces for asynchronous and synchronous smartcards operating at a supply voltage of 5 V, 3 V or 1.8 V. The ST8034HN and ST8034HC devices can be placed between the card and the microcontroller to provide all supply, protection,...
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Key features

Key features
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 5 V, 3 V or 1.8 V supply voltage for the smartcard (V_CC), pin-selectable. Ensures controlled V_CCrise and fall times and provides smart overload detection with glitch immunity. Very low power consumption in deep shutdown mode 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 Automatic activation and deactivation sequences initiated by the microcontroller Emergency deactivation sequences initiated by a card supply short-circuit, card take-off, falling V_DD, V_DDP, or V_DD(INTF)or by the interface device overheating Voltage supply supervisors with a fixed threshold (V_DD, V_DDP) with an external resistor divider to set the V_DD(INTF)threshold (PORADJ pin) 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 Space saving QFN24 4 x 4 x 0.8 mm package Temperature range -25 to +85 °C

Out of Stock

Parameters

Supply Voltage Min Volt	4.0
Supply Voltage Max Volt	6.5
Operating Temp Min Celsius	-25.0
Operating Temp Max Celsius	85.0
ECCN US	EAR99
ECCN EU	NEC
Packing Type	Tape And Reel
RoHs compliant	Ecopack3
Grade	Industrial
Package Name	HVQFN24 4x4x0-85

Description

Key features

Key features
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 5 V, 3 V or 1.8 V supply voltage for the smartcard (V_CC), pin-selectable. Ensures controlled V_CCrise and fall times and provides smart overload detection with glitch immunity. Very low power consumption in deep shutdown mode 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 Automatic activation and deactivation sequences initiated by the microcontroller Emergency deactivation sequences initiated by a card supply short-circuit, card take-off, falling V_DD, V_DDP, or V_DD(INTF)or by the interface device overheating Voltage supply supervisors with a fixed threshold (V_DD, V_DDP) with an external resistor divider to set the V_DD(INTF)threshold (PORADJ pin) 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 Space saving QFN24 4 x 4 x 0.8 mm package Temperature range -25 to +85 °C