| Part name | Description | Manufacturer | Package | Pins | Temp. Range | PDF datasheet |
| 24LC21A-/P | 1K 2.5V dual mode I2C EEPROM | Microchip Technology, Inc. | N/A | 8 | 0°C | 70°C | 24LC21A-/P datasheet (115K) |
| 24LC21A-/SN | 1K 2.5V dual mode I2C EEPROM | Microchip Technology, Inc. | N/A | 8 | 0°C | 70°C | 24LC21A-/SN datasheet (115K) |
| 24LC21A-I/P | 1K 2.5V dual mode I2C EEPROM | Microchip Technology, Inc. | N/A | 8 | -40°C | 85°C | 24LC21A-I/P datasheet (115K) |
| 24LC21A-I/SN | 1K 2.5V dual mode I2C EEPROM | Microchip Technology, Inc. | N/A | 8 | -40°C | 85°C | 24LC21A-I/SN datasheet (115K) |
| 24LC21AT-/P | 1K 2.5V dual mode I2C EEPROM | Microchip Technology, Inc. | N/A | 8 | 0°C | 70°C | 24LC21AT-/P datasheet (115K) |
| 24LC21AT-I/P | 1K 2.5V dual mode I2C EEPROM | Microchip Technology, Inc. | N/A | 8 | -40°C | 85°C | 24LC21AT-I/P datasheet (115K) |
| 24LC21AT-I/SN | 1K 2.5V dual mode I2C EEPROM | Microchip Technology, Inc. | N/A | 8 | -40°C | 85°C | 24LC21AT-I/SN datasheet (115K) |
| 24LC21T-I/P | 1K 2.5V dual mode I2C EEPROM | Microchip Technology, Inc. | N/A | 8 | -40°C | 85°C | 24LC21T-I/P datasheet (81K) |
| 24LC21T-I/SN | 1K 2.5V dual mode I2C EEPROM | Microchip Technology, Inc. | N/A | 8 | -40°C | 85°C | 24LC21T-I/SN datasheet (81K) |
| 24LC256-E/P | 256K I2C CMOS EEPROM | Microchip Technology, Inc. | N/A | 8 | -40°C | 125°C | 24LC256-E/P datasheet (181K) |
