| BQ4013 | Texas Instruments | 128Kx8 Nonvolatile SRAM, 5% Voltage Tolerance |
| BQ4013Y | Texas Instruments | 128Kx8 Nonvolatile SRAM, 10% Voltage Tolerance |
| BQ4842Y | Texas Instruments | RTC Module With 128Kx8 NVSRAM, Watchdog Timer, uP Reset, Interrupts and Battery Low Warning |
| DS1245AB | Maxim | 1024k Nonvolatile SRAM |
| DS1245W | Maxim | 3.3V 1024k NV SRAM |
| DS1245Y | Maxim | 1024k Nonvolatile SRAM |
| DS1248 | Maxim | 1024k NV SRAM with Phantom Clock |
| DS1345AB | Maxim | 1024k Nonvolatile SRAM with Battery Monitor |
| DS1345W | Maxim | 3.3V 1024K Nonvolatile SRAM |
| DS1345Y | Maxim | 1024k Nonvolatile SRAM with Battery Monitor |
| DS1556 | Maxim | 1M, Nonvolatile, Y2K-Compliant Timekeeping RAM |
| DS1646 | Maxim | Nonvolatile Real-Time Clocks RAM |
| DS1746 | Maxim | Y2K-Compliant, Nonvolatile Timekeeping RAMs |