M24256-BW Datasheet | STMicroelectronics

Features - patible with following I2C bus modes: - 1 MHz - 400 k Hz - 100 k Hz - Memory array: - 256 Kbit (32 Kbyte) of EEPROM - Page size: 64 byte - Additional write lockable page (M24256-D order codes) - Single supply voltage and high speed: - 1 MHz clock from 1.7 V to 5.5 V - Write: - Byte write within 5 ms - Page write within 5 ms - Operating temperature range: - from -40 °C up to +85 °C - 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 - Ro HS-pliant and Halogen-free (ECOPACK2) - SO8 ECOPACK2 - TSSOP8 ECOPACK2 - UFDFPN8 ECOPACK2 - WLCSP ECOPACK2 - Unsawn wafer (each die is tested) DS1766 - Rev 35 - November 2020 For further information contact your local STMicroelectronics sales office. .st. M24256-BW M24256-BR M24256-BF M24256-DR M24256-DF Description Description The M24256 is a 256-Kbit I2C-patible EEPROM (electrically erasable programmable memory) organized as 32 K × 8 bits. The M24256-BW can operate with a supply voltage from 2.5 V to 5.5 V, the M24256-BR AND M24256-DR can operate with a supply voltage from 1.8 V to 5.5 V, and the M24256-BF and M24256-DF can operate with a supply voltage from 1.7 V to 5.5 V. All these devices operate with a clock frequency of 1 MHz (or less), over an ambient temperature range of - 40 °C / +85 °C. The M24256-D offers an additional page, named the identification page (64 byte). The identification page can be used to store sensitive application parameters which can be (later) permanently locked in read-only mode. Figure 1. Logic...