SPI (Serial Peripheral Interface) EEPROM
| Density | Org | Product No. | Vcc | Speed ( MHz ) | Package ( 8-pin ) | Status |
| 1K | 128 x 8 | GT25C01 | 1.8V-5.5V | 10 | SOIC, TSSOP | Production |
| 2K | 256 x 8 | GT25C02 | 1.8V-5.5V | 10 | SOIC, TSSOP | Production |
| 4K | 512 x 8 | GT25C04 | 1.8V-5.5V | 10 | SOIC, TSSOP | Production |
| 8K | 1K x 8 | GT25C08 | 1.7V-5.5V | 20 | SOIC, TSSOP, UDFN, CSP | Production |
| 16K | 2K x 8 | GT25C16 | 1.7V-5.5V | 20 | SOIC, TSSOP, UDFN, CSP | Production |
| 32K | 4K x 8 | GT25C32A | 1.7V-5.5V | 20 | SOIC, TSSOP, UDFN, CSP | Production |
| 32K | 4K x 8 | GT25C32 | 1.8V-5.5V | 10 | SOIC, TSSOP, UDFN | NRND |
| 64K | 8K x 8 | GT25C64 | 1.7V-5.5V | 20 | SOIC, TSSOP, CSP | Production |
| 128K | 16K x 8 | GT25C128A | 1.7V-5.5V | 20 | SOIC, TSSOP, UDFN | Production |
| 128K | 16K x 8 | GT25C128 | 1.8V-5.5V | 10 | SOIC, TSSOP | NRND |
| 256K | 32K x 8 | GT25C256 | 1.7V-5.5V | 20 | SOIC, TSSOP, UDFN | Production |
| 512K | 64K x 8 | GT25C512 | 1.7V-5.5V | 20 | SOIC, TSSOP,UDFN | Production |
