AT83EC5123xxx-SIUIM Microcontroller with USB and smart card reader interface. Memory size 30K bytes ROM + 512 bytes EEPROM. Supply voltage 3.6-5.5 V. Max frequency 32 MHz.
AT83C5122xxx-SISIM Microcontroller with USB and smart card reader interface. Memory size 32K bytes ROM. Supply voltage 3.6-5.5 V. Max frequency 32 MHz.