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TDA7492PEDatasheet PDF
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1. General description
The TDA8007BHL 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,
EMV4.2 and EMV 2000. It is addressed on a non-multiplexed 8-bit databus, by means of
address registers AD0, AD1, AD2 and AD3. TDA8007BHL/C3 can be also addressed
through a multiplexed access. 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 V to 6 V.
TDA8007BHL/C4 supports only non multiplex access and TDA8007BHL/C3 support both
non multiplexed and multiplexed access.
2. Features and benefits
Control and communication through an 8-bit parallel interface, compatible with
non-multiplexed memory access, TDA8007BHL/C3 can be also addressed through a
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 VCC generation: 5 V ± 5 %, 65 mA (max.); 3 V ± 8 %, 50 mA (max.) or
1.8 V ± 10 %, 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 EMV4.2
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:
TDA8007BHL
Multiprotocol IC card interface
Rev. 9.1 — 18 June 2012 Product data sheet
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