DS8313/DS8314 19-4655 Rev 1 5/09 Smart Card Interface General Description Features The DS8313 smart card and SIM interface IC is a low- Analog Interface and Level Shifting for IC Card cost, analog front-end for a smart card reader designed Communication for smart card applications that do not require the use 8kV (min) ESD (HBM) Protection on Card Interfaces of the auxiliary card I/O contacts C4 and C8 (AUX1 and AUX2). The DS8313 supports 5V, 3V, and 1.8V smart Ultra-Low Stop-Mode Current, Less Than 10nA cards. The absence of a charge pump reduces active Typical power consumption, and the DS8313 also supports an Internal IC Card Supply-Voltage Generation ultra-low-power 10nA stop mode. 5.0V 5%, 80mA (max) The DS8313 is designed to interface between a system 3.0V 8%, 65mA (max) microcontroller and the smart card interface, providing 1.8V 10%, 30mA (max) all power supply, protection, and level shifting required for IC card applications. Automatic Card Activation and Deactivation The DS8314 is similar to the DS8313, but only uses one Controlled by Dedicated Internal Sequencer analog (smart card) power supply. Therefore, the I/O Lines from Host Directly Level Shifted for device has reduced ability to provide power to smart Smart Card Communication cards, but it is still sufficient for many applications, allowing the DS8314 to drop into many TDA8024 sock- Flexible Card Clock Generation, Supporting ets without hardware changes. External Crystal Frequency Divided by 1, 2, 4, or 8 The DS8313L and DS8314L use a negative polarity-pres- High-Current, Short-Circuit and High-Temperature ence detect instead of the default positive-polarity detect. Protection Both devices are available in a 28-pin SO package. Low Active-Mode Current Applications Ordering Information Pay/Premium Television Access Control PART TEMP RANGE PIN-PACKAGE Banking Applications DS8313-RRX+ -40C to +85C 28 SO POS Terminals DS8313L-RRX+* -40C to +85C 28 SO DS8314-RRX+* -40C to +85C 28 SO Debit/Credit Payment Terminals DS8314L-RRX+* -40C to +85C 28 SO PIN Pads Note: Contact the factory for availability of other variants and Automated Teller Machines package options. Telecommunications +Denotes a lead(Pb)-free/RoHS-compliant package. *Future productcontact factory for availability. Typical Application Circuit, Pin Configuration, and Selector Guide appear at end of data sheet. Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, go to: www.maxim-ic.com/errata. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Smart Card Interface ABSOLUTE MAXIMUM RATINGS Voltage Range on V Relative to GND ...............-0.5V to +6.5V Maximum Junction Temperature .....................................+125C DD Voltage Range on V Relative to GND .............-0.5V to +6.5V Maximum Power Dissipation (T = -25C to +85C) .......700mW DDA A Voltage Range on All Other Pins Storage Temperature Range .............................-55C to +150C Relative to GND......................................-0.5V to (V + 0.5V) Soldering Temperature.........Refer to the IPC/JEDEC J-STD-020 DD Specification. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED DC OPERATING CONDITIONS (V = +3.3V, V = +5.0V, T = +25C, unless otherwise noted. All specifications apply to both the DS8313 and DS8314, unless DD DDA A otherwise noted in the CONDITIONS column.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY Digital Supply Voltage V 2.7 6.0 V DD Card Voltage-Generator Supply Voltage V DS8313, DS8314 4.75 6.0 V DDA V Threshold voltage (falling) 2.35 2.45 2.65 V TH2 Reset Voltage Thresholds V Hysteresis 50 100 150 mV HYS2 CURRENT CONSUMPTION Active V Current 5V Cards I = 80mA, f = 20MHz, DD CC XTAL I 80.75 85 mA DD 50V (Including 80mA Draw from 5V Card) f = 10MHz, V = 5.0V CLK DDA Active V Current 5V Cards (Current I = 80mA, f = 20MHz, DD CC XTAL I 0.75 5 mA DD IC Consumed by DS8313/DS8314 Only) f = 10MHz, V = 5.0V (Note 2) CLK DDA Active V Current 3V Cards I = 65mA, f = 20MHz, DD CC XTAL I 65.75 70 mA DD 30V (Including 65mA Draw from 3V Card) f = 10MHz, V = 5.0V CLK DDA Active V Current 3V Cards (Current I = 65mA, f = 20MHz, DD CC XTAL I 0.75 5 mA DD IC Consumed by DS8313/DS8314 Only) f = 10MHz, V = 5.0V (Note 2) CLK DDA Active V Current 1.8V Cards I = 30mA, f = 20MHz, DD CC XTAL I 30.75 40 mA DD 18V (Including 30mA Draw from 1.8V Card) f = 10MHz, V = 5.0V CLK DDA Active V Current 1.8V Cards (Current I = 30mA, f = 20MHz, DD CC XTAL I 0.75 5 mA DD IC Consumed by DS8313/DS8314 Only) f = 10MHz, V = 5.0V (Note 2) CLK DDA Card inactive, active-high PRES, Inactive-Mode Current I 50 40 A DD DS8313/DS8314 not in stop mode DS8313/DS8314 in ultra-low-power Stop-Mode Current I stop mode (CMDVCC, 5V/3V, and 10 A DD STOP 1 8V set to logic 1) (Note 3) 2 DS8313/DS8314