| Manufacturer | Part Number | Description |
|---|---|---|
Maxim Integrated (now Analog Devices)
| DS1977 | Password-Protected 32KB EEPROM iButton |
Xicor
| X46402 | Dual Voltage CPU Supervisor with 64K Password Protected EEPROM |
| Password | MR2920 | (MR2900 Series) Standby Compatible Partial Resonance Power Supply IC Module |
