M95640-W

M95640-W M95640-R M95640-DF Datasheet 64-Kbit serial SPI bus EEPROM with high-speed clock TSSOP8 (DW) 169 mil width SO8 (MN) 150 mil width WLCSP (CT) UFDFPN8 (MC) DFN8 2 x 3 mm Product status link M95640-W M95640-R M95640-DF Product label Features SPI interface Compatible with the serial peripheral interface (SPI) bus Memory 64 Kb (8 Kbytes) of EEPROM Page size: 32 bytes Additional write lockable page (identification page) Supply management Wide single supply voltage: – 2.5 V to 5.5 V for M95640-W – 1.8 V to 5.5 V for M95640-R – 1.7 V to 5.5 V for M95640-DF Temperature Operating temperature range: from -40 °C up to +85 °C Fast write cycle time Byte and page write within 5 ms High speed clock frequency Clock up to 20 MHz Performance Enhanced ESD protection More than 4 million write cycles More than 200-year data retention Advanced features Write protect: quarter, half or whole memory array Package SO8 (ECOPACK2) TSSOP8 (ECOPACK2) UFDFPN8 (ECOPACK2) WLCSP (ECOPACK2) DS6633 - Rev 20 - June 2023 For further information contact your local STMicroelectronics sales office. www.st.com M95640-W M95640-R M95640-DF Description 1 Description The M95640 devices are electrically erasable programmable memories (EEPROMs) organized as 8192 x 8 bits, accessed through the SPI bus. The M95640-W can operate with a supply voltage from 2.5 V to 5.5 V, the M95640-R can operate with a supply voltage from 1.8 V to 5.5 V and the M95640-DF can operate with a s...