Memory device is serial eeprom, which can be 25020/25080/93c56/93c86, all 8 pin SMD package.
Expected file size for 25020 and 93c56 is 256 bytes, for 25080 is 1024 bytes and for 93c86 is 2048 bytes.
Use JMA TPX1 or CN1 or Errebi TX1 transponder.
Written transponder is ready programmed to start the vehicle.
Vehicles equipped with this unit:
Toyota: RAV4, Corolla, Sienna, Yaris
Lexus: IS200, IS300, GS300