The EM4450 is a CMOS integrated circuit intended for use
in electronic Read/Write RF Transponders. The chip
contains 1K Bit of EEPROM which can be configured by the
User. The memory can be secured by using the 32 bit password for all
write and read protected operations. The password can be
updated, but never read. The fixed code serial number and
device identification are laser programmed making every
chip unique.