AT24C01A/02/04/08A/16A series is a 1024/2048/4096/8192/16384 bits serial electrically erasable and programmable read-only memory (EEPROM) organized as 128/256/512/1024/2048 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. AT24C01A/02/04/08A/16A are available in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead MAP, 5-lead SOT23 (AT24C01A/AT24C02/AT24C04), 8- lead TSSOP, and 8-ball dBGA2 packages and is accessed via a Two-wire serial inter- face. In addition, the entire family is available in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 5.5V) two supply voltages.
The AT24C01A/AT24C02/AT24C04/AT24C08A/AT24C16A family is a series of low‑voltage, high‑reliability serial EEPROMs offering 1 K to 16 K bits of memory. They are optimized for industrial and commercial applications where low power consumption and small package size are essential.
The handbook details the devices' pin‑outs, memory organization, timing diagrams, and electrical specifications such as supply voltage ranges, endurance, and data retention. It also describes the two‑wire serial interface operation, write‑protect functionality, and standby mode behavior.
| Supply Voltage (Vcc) | 1.8 V to 5.5 V (2.7 V to 5.5 V version available) |
|---|---|
| Endurance | 1 Million write cycles |
| Data Retention | 100 years |
| Write Cycle Time | 5 ms (typ) |
| Clock Frequency (SCL) | 100 kHz to 400 kHz |
| Package Options | 8‑lead PDIP, 8‑lead SOIC, 8‑lead MAP, 5‑lead SOT23, 8‑lead TSSOP, 8‑ball dBGA2 |
| Memory Organization | 128/256/512/1024/2048 words of 8 bits (1 K/2 K/4 K/8 K/16 K bits) |
The devices operate from 1.8 V to 5.5 V, with a version available for 2.7 V to 5.5 V.
Each device is rated for up to 1 million write cycles.
The EEPROMs retain data for up to 100 years.
Up to eight 1 K/2 K devices can be addressed on a single two‑wire bus.