Brilliant piece of electronic hardware! You can reset any used M35080 (v6) EEPROM back to 0 (zero) or blank state (as factory brand new!). It has easy to use Windows 98/2000/XP software. 

• Read, Program, Erase Incremental Registers\EEPROM
• Erase time to Delivery State* 1-3 seconds
• Erase time to Delivery State for M35080V6 1-10 minutes
• Supported all clock rates 2.5, 5.0 and 6 MHz IC’s.
• In-circuit/On-board EEPROM programming
• On-board EEPROM programming for M35080V6
• Self-Check capabilities
• Onboard processor ATmega16 allow to Firmware Update to new versions
• 4 adaptors for SO8 device
• Additional items you’ll need to use this tool: 1) Host: A 32 Bit x86 based or Pentium PC with a free Com1-8 communication port;  2) Power supply: An 12 Volt / 500 mA.

NOTE: Delivery State: The first 32 bytes (incremental registers) are set to all “0″s, 16 words at $0000 The EEPROM memory array $0020-$3FFF set to all $FF. The Status register set to $10