TDA8005A Datasheet (NXP) - Low-power 3 V/5 V smart card coupler

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

TDA8005A 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