Product overview
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, detection and control functions, with just a few external components.
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All 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 (VCC), pin-selectable. Ensures controlled VCCrise 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 VDD, VDDP, or VDD(INTF)or by the interface device overheating
- Voltage supply supervisors
- with a fixed threshold (VDD, VDDP)
- with an external resistor divider to set the VDD(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
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STMicroelectronics - ST8034HN
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| ST8034HNQR | Active | HVQFN24 4x4x0-85 | Industrial | Ecopack3 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||
| ST8034HNQR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
ST8034HNQR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors