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M24256-B

STMicroelectronics
Part Number M24256-B
Manufacturer STMicroelectronics
Description 256-Kbit Serial I2C Bus EEPROM
Published Mar 30, 2005
Detailed Description M24256-BW M24256-BR M24256-BF M24256-DR M24256-DF Datasheet 256-Kbit serial I²C bus EEPROM TSSOP8 (DW) 169 mil width S...
Datasheet PDF File M24256-B PDF File

M24256-B
M24256-B

Overview
M24256-BW M24256-BR M24256-BF M24256-DR M24256-DF Datasheet 256-Kbit serial I²C bus EEPROM TSSOP8 (DW) 169 mil width SO8N (MN) 150 mil width UFDFPN8 (MC) DFN8 - 2x3 mm WLSCP (CU) WLSCP (CS) Unsawn wafer Product status link M24256-BF M24256-DF M24256-BR M24256-DR M24256-BW Features • Compatible with following I2C bus modes: – 1 MHz – 400 kHz – 100 kHz • 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 • RoHS-compliant 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.
www.
st.
com M24256-BW M24256-BR M24256-BF M24256-DR M24256-DF Description 1 Description The M24256 is a 256-Kbit I2C-compatible 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 diagram VCC 3 E0-E2 SCL WC M24xxx SDA VSS E2, E1, E0 SDA SCL...


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