The M24C64 is a 64-Kbit I²C-compatible EEPROM (electrically erasable programmable memory) organized as 8K x 8 bits.

Over an ambient temperature range of -40 °C / +85 °C, the M24C64-W can operate with a supply voltage from 2.5 V to 5.5 V, the M24C64-R can operate with a supply voltage from 1.8 V to 5.5 V, and the M24C64-F and M24C64-DF can operate with a supply voltage from 1.7 V to 5.5 V ( the M24C64-F can also operate down to 1.6 V, under some restricting conditions).

The M24C64-D offers an additional page, named the identification page (32 byte). The identification page can be used to store sensitive application parameters which can be (later) permanently locked in read-only mode.

Compatible with following I²C bus modes:
1 MHz
400 kHz
100 kHz

Memory array:
64 Kbit (8 Kbyte) of EEPROM

Page size: 32 byte
Additional Write lockable page (M24C64-D order codes)

Single supply voltage:
1.7 V to 5.5 V over –40 °C / +85 °C
1.6 V to 5.5 V over 0 °C / +85 °C

Write:
Byte write within 5 ms
Page write within 5 ms

Random and sequential read modes

Write protect of the whole memory array

Enhanced ESD/latch-Up protection

More than 4 million write cycles

More than 200-years data retention

Packages:
SO8N (ECOPACK2)
TSSOP8 (ECOPACK2)
UFDFPN (ECOPACK2)
WLCSP (ECOPACK2)
Unsawn wafer (each die is tested)