1Kb I2C/2-Wire Serial EEPROM for surface mount applications. Features 128 words of memory organized as 128x8, with a maximum operating frequency of 400kHz and a fast access time of 900ns. Operates from a 2.5V to 5.5V supply voltage and offers write protection. Packaged in a lead-free, RoHS compliant SOIC package with dimensions of 4.9mm length, 3.9mm width, and 1.5mm height.
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Microchip 24LC21A-I/SN technical specifications.
| Access Time | 10ms |
| Access Time-Max | 900ns |
| Package/Case | SOIC |
| Density | 1Kb |
| Frequency | 400kHz |
| Height | 1.5mm |
| Interface | I2C, Serial |
| Lead Free | Lead Free |
| Length | 4.9mm |
| Max Frequency | 400kHz |
| Max Operating Temperature | 85°C |
| Max Supply Voltage | 5.5V |
| Memory Size | 1Kb |
| Memory Type | EEPROM, |
| Min Operating Temperature | -40°C |
| Min Supply Voltage | 2.5V |
| Mount | Surface Mount |
| Number of Words | 128 |
| Organization | 128X8 |
| Package Quantity | 100 |
| Packaging | Rail/Tube |
| Programming Voltage | 5.5V |
| Radiation Hardening | No |
| RoHS Compliant | Yes |
| Supply Current | 3mA |
| Width | 3.9mm |
| Write Protection | YES |
| RoHS | Compliant |
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