83C852

Signetics Mlcrocontroller Products Secured 8-bit microcontroller Preliminary specification 83C852 FEATURES 8-bit CPU 6K bytes of user program memory (ROM), no external extension 256 bytes of RAM data memory (RAM), no external extension 2K bytes EEPROM: - EEPROM stores data or program - on-chip voltage multiplier for EEPROM ERASEIWRITE - ERASEIWRITE cycle time independent of the clock frequency 10000 ERASEIWRITE cycles per bytes 10 years non-volatile data retention infinite number of READ cycles error code correction Calculation unit for cryptographic calculations Security features Power-ON/OFF reset circuit low frequency detector Two 16-bit timers Clock frequency range 1 MHz to 6 MHz; 1 Ils cycle time with 6 MHz clock frequency Two 1/0 lines; only one 1/0 line is used in half-duplex, according to the ISO standards for the Smart Card applications; full-duplex communication can be performed with both 1/0 lines 5 interrupt sources from: I/...