TDA8005A - NXP

TDA8005A Low-power 3 V/5 V smart card coupler

TDA8005A • Control and communication through a standard RS232 full-duplex interface • Optional additional I/O ports for: – keyboard – LEDs – display – etc. • P80CL51 microcontroller core with 4-kbyte ROM and 256-byte RAM. APPLICATIONS • Portable smart card readers for protocol T = 0 • GSM mobile phones. GENERAL DESCRIPTION The TDA8005A is a low-cost card i.

Features

• Smart card supply (5 and 3 V ±5%, 20 mA maximum with controlled rise and fall times)
• Smart card clock generation (up to 8 MHz), with two times synchronous frequency doubling
• Clock STOP HIGH, clock STOP LOW or 1.25 MHz (from internal oscillator) for cards power-down mode
• Specific UART on I/O for automatic direct/inverse convention settings and error management at character level
• Automatic activation and deactivation sequences through an independent sequencer
• Supports the protocol T = 0 in accordance with ISO 7816 GSM11.11 requirements (Global System for Mobile communication); approv.