M24C64 and M24C32 are 64Kbit and 32Kbit serial I²C bus EEPROMs with two-wire I2C serial interface, support 400kHz protocol, single supply voltage 4.5 to 5.5V, write control input, byte and page write (up to 32 bytes), random and sequential read modes, self-timed programming cycle, automatic address incrementing, enhanced ESD/latch-up protection, more than 1 million erase/write cycles, more than 40-year data retention period.
The M24C64 and M24C32 are 64‑Kbit and 32‑Kbit serial I²C EEPROM devices. They support a two‑wire I²C interface, up to 400 kHz bus speed, and include self‑timed programming, automatic address incrementing, and robust ESD/latch‑up protection.
The datasheet details supply voltage ranges for the standard, low‑voltage and radiation‑hard versions, pin‑out for PDIP8, TSSOP8 and UFDFPN8 packages, memory organization, timing diagrams, and absolute maximum ratings. It also lists reliability figures such as over 1 million erase/write cycles and more than 40‑year data retention.
| Maximum I²C speed | 400 kHz |
|---|---|
| Supply voltage (standard) | 4.5 V to 5.5 V |
| Supply voltage (low‑voltage) | 2.5 V to 5.5 V |
| Supply voltage (radiation‑hard) | 1.8 V to 5.5 V |
| Endurance | > 1 million erase/write cycles |
| Data retention | > 40 years |
The device supports a maximum I²C bus speed of 400 kHz.
The standard M24C64 operates with a supply voltage of 4.5 V to 5.5 V.
The EEPROM is rated for more than one million erase/write cycles.
The device retains data for more than 40 years.