TDA8007B

General description

The TDA8007BHL/C is a cost-effective card interface for dual smart card readers. Controlled through a parallel bus, it meets all requirements of:

• ISO 7816, GSM 11-11 and EMV 3.1.1
  (TDA8007BHL/C2 and TDA8007BHL/C3)
  
• ISO 7816, GSM 11-11 and EMV 2000
  (TDA8007BHL/C3).
  

It may be interfaced to the ports P0, P1 and P2 of a 80C51 family microcontroller, and be addressed as a memory through MOVX instructions. It may also be addressed on a non-multiplexed 8-bit data bus, by means of address registers AD0, AD1, AD2 and AD3. The integrated ISO UART and the time-out counters allow easy use even at high baud rates with no real time constraints. Due to its chip select, external input/output and interrupt features, it greatly simplifies the realization of a reader of any number of cards. It gives the cards and the reader a very high level of security, due to its special hardware against ESD, short-circuiting, power failure, etc. The integrated step-up converter allows operation within a supply voltage range of 2.7 to 6 V; it may be supplied with a voltage higher than the IC?s supply.

A software library has been developed that covers all actions required for T = 0 and T = 1 and synchronous protocols (see application note ?AN01054?).

Features

• Control and communication through an 8-bit parallel interface, compatible with multiplexed or non-multiplexed memory access
• Specific ISO UART with parallel access input/output for automatic convention processing, variable baud rate through frequency or division ratio programming, error management at character level for T = 0 and extra guard time register
• FIFO for 1 to 8 characters in reception mode
• Parity error counter in reception mode and in transmission mode with automatic re-transmission
• Dual V_CC generation: 5 V +- 5pct, 65 mA (max.); 3 V+-8pct, 50 mA (max.) or 1.8 V +- 10pct, 30 mA (max.); with controlled rise and fall times
• Dual cards clock generation (up to 10 MHz), with three times synchronous frequency doubling (f_XTAL , 1/2 f_XTAL , 1/4 f_XTAL and 1/8 f_XTAL )
• Cards clock stop (at HIGH or LOW level) or 1.25 MHz (from internal oscillator) for cards Power-down mode
• Automatic activation and deactivation sequence through an independent sequencer
• Supports the asynchronous protocols T = 0 and T = 1 in accordance with:
• ISO 7816 and EMV 3.1.1 (TDA8007BHL/C2 and TDA8007BHL/C3)
• ISO 7816 and EMV 2000 (TDA8007BHL/C3)
• Versatile 24-bit time-out counter for Answer To Reset (ATR) and waiting times processing
• Specific Elementary Time Unit (ETU) counter for Block Guard Time (BGT): 22 in T = 1 and 16 in T = 0
• Minimum delay between two characters in reception mode:
• in Protocol T = 0:
  12 ETU (TDA8007BHL/C2)
  11.8 ETU (TDA8007BHL/C3)
  
• in Protocol T = 1:
  11 ETU (TDA8007BHL/C2)
  10.8 ETU (TDA8007BHL/C3)
• Supports synchronous cards
• Current limitations in the event of short-circuit (pins I/O1, I/O2, V_CC1 , V_CC2 , RST1 and RST2)
• Special circuitry for killing spikes during power-on/power-off
• Supply supervisor for power-on/power-off reset
• Step-up converter (supply voltage from 2.7 to 6 V), doubler, tripler or follower according to V_CC and V_DD
• Additional input/output pin allowing use of the ISO UART for another analog interface (pin I/OAUX)
• Additional interrupt pin allowing detection of level toggling on an external signal (pin INTAUX)
• Fast and efficient swapping between the three cards due to separate buffering of parameters for each card
• Chip select input allowing use of several devices in parallel and memory space paging
• Enhanced ESD protections on card side: 6 kV (min.)
• Software library for easy integration within the application
• Power-down mode for reducing current consumption when no activity.

Products/packages

The variants in the table below are discontinued. See the table Discontinued information for more information.

Quality/reliability/chemical content

The variants in the table below are discontinued. See the table Discontinued information for more information.

Quality and reliability disclaimer

Pricing/ordering/availability

Discontinued information

Applications

• Multiple smart card readers for multiprocessor applications (EMV banking, digital pay TV and access control, etc.).

Block diagrams/pinning

Design support

Application Notes

AN00027; Serial PC/SC dual smart card reader using TDA8007B and P8XC51RD+ mask 04 (2000-04-01)

Parametrics/similar products

Similar products
TDA8007B links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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Disclaimers

• General product disclaimer
• Quality and reliability disclaimer