TDA8003TS

General description

The TDA8003TS is a low cost one chip SIM interface, in accordance with GSM11.11, GSM11.12 and EMV96 (Europay, Mastercard, Visa) with card current limitation. Controlled by I²C-bus, it is optimized in terms of board space, external components count and connection count (see Chapter "Application information").

The integrated DC-to-DC converter ensures full cross-compatibility between 3 or 5 V cards and 3 or 5 V environments. The very low-power consumption in Power-down mode and Off mode saves battery power.

Features

• Subscriber Identification Module (SIM) card interface in accordance with GSM11.11, GSM11.12 (Global System for Mobile communication) and ISO 7816 requirements
• V_CC regulation (3 or 5 V ±8%) with controlled rise and fall times
• Card take-off protection
• One protected and buffered pseudo-bidirectional I/O line (I/O referenced to V_CC and SIMI/O referenced to V_DDI)
• Clock generation (up to 10 MHz) with synchronous start and frequency doubling
• Clock stop LOW, clock stop HIGH or 1.25 MHz (from internal oscillator) for cards Power-down mode
• Automatic activation and deactivation sequences of an independent sequencer
• Automatic processing of pin RST with count of the CLK cycles for start of the Answer To Reset (ATR)
• Warm reset command
• Supply voltage supervisor for Power-on reset, spike killing and emergency deactivation in case of supply drop-out
• DC-to-DC converter (doubler, tripler or follower) allowing operation in a 3 or 5 V environment (2.5 min. V_DD min. 6 V)
• Enhanced Electrostatic Discharge (ESD) protections on card side (6 kV minimum)
• Power-down mode with several active features and current reduction
• Off mode with 2 µA current
• Control from a microcontroller via a 400 kHz slave I²C-bus (4 possible addresses: 48H, 4AH, 4CH and 4EH)
• Four parallel devices possible due to 2 sub-address wires
• Interface signals supplied by an independent voltage (1.5 min. V_DDI min. 6 V).

Applications

• GSM mobile phones
• SAM interfaces in banking terminals
• Portable card readers, etc.

Related applications
Mid-range integrated DTV (TV810)

Block diagrams/pinning

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