ST7GEME4

Clock, reset and supply management Low voltage reset Halt power saving mode PLL for generating 48 MHz USB clock using a 4 MHz crystal
  USB (Universal Serial Bus) interface USB 2.0 compliant CCID V1.0 Full speed, hubless Bus-powered, low consumption
Serial RS232 interface Transmission rate: 9.6 Kbps to 115 Kbps Format: 8-bit, no parity Auto baud rate CCID V1.0 on serial TTL link
ISO 7816-3 UART interface 4 Mhz clock generation Synchronous/Asynchronous protocols (T=0, T=1) Automatic retry on parity error Programmable baud rate from 372 to 11.625 clock pulses (D=32/F=372) Card insertion/removal detection
Smartcard power supply Selectable card VCC: 1.8 V, 3 V, and 5 V Internal Step-up converter for 5V supplied Smartcards (with a current of up to 55mA) using only two external components. Programmable smartcard internal voltage regulator (1.8 to 3.0 V) with current overload protection and 4 kV ESD protection (Human Body Model) for all smartcard interface I/Os
Development tools Application note on PCB recommendations and component bill of materials Full hardware/software kit for performance evaluation

The ST7GEME4 is an 8-bit microcontroller dedicated to smartcard reading applications. It has been developed to be the core of smartcard readers communicating through a serial or USB link. It is pre-programmed using Gemplus software, and offers a single integrated circuit solution with very few external components.