TDA8029HL: Low power single card reader

• 80C51 core with 16 kB ROM, 256-byte RAM and 512-byte XRAM
• Specific ISO7816 UART, accessible with MOVX instructions for automatic convention processing, variable baud rate, error management at character level for T = 0 and T = 1 protocols, extra guard time, etc.
• Specific versatile 24-bit Elementary Time Unit (ETU) counter for timing processing during Answer To Reset (ATR) and for T = 1 protocol
• V_CC generation with controlled rise and fall times
• Card clock generation up to 20 MHz with three times synchronous frequency doubling (f_XTAL, 1⁄2f_XTAL, 1⁄4f_XTAL and 1⁄8f_XTAL)
• Card clock stop HIGH or LOW or 1.25 MHz from an integrated oscillator for card power reduction modes
• Automatic activation and deactivation sequences through an independent sequencer
• Supports asynchronous protocols T = 0 and T = 1 in accordance with:
  • ISO 7816 and EMVCo4.3 (TDA8029HL/C2).
  • for EMVCo4.3c support it is recommended to use PN7412AU as TDA8029 is not anymore compliant.
• 1 to 8 characters FIFO in reception mode
• Parity error counter in reception mode and in transmission mode with automatic retransmission
• Versatile 24-bit time-out counter for ATR and waiting times processing
• Specific ETU counter for Block Guard Time (BGT) (22 ETU in T = 1 and 16 ETU in T = 0)
• Minimum delay between two characters in reception mode:

  • In protocol T = 0:

    11.8 ETU (TDA8029HL/C2)

  • In protocol T = 1:

    10.8 ETU (TDA8029HL/C2)

• Supports synchronous cards which do not use C4/C8
• Current limitations on card contacts
• Supply supervisor for power-on/off reset and spikes killing
• DC-to-DC converter (supply voltage from 2.7 to 6 V), doubler, tripler or follower according to V_CC and V_DD
• Shut-down input for very low power consumption
• Enhanced ESD protection on card contacts (6 kV minimum)
• Software library for easy integration
• Communication with the host through a standard full duplex serial link at programmable baud rates
• One external interrupt input and four general purposes I/Os

Target Applications

• Portable card readers
• General purpose card readers
• EMV compliant card readers