M24256-BW

NRND
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256 Kbit Serial I2C Bus EEPROM

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Overview

Product overview

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.

  • All features

    • Packages
      • 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
      • RoHS-compliant and Halogen-free (ECOPACK2)
      • SO8 ECOPACK2
      • TSSOP8 ECOPACK2
      • UFDFPN8 ECOPACK2
      • WLCSP ECOPACK2
      • Unsawn wafer (each die is tested)
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The current status of a product:
Active: Product is in volume production
Evaluation: Product is under characterization. Limited Engineering samples available
Preview: Product is in design stage
Target: Product is in design feasibility stage.No commitment taken to produce
Proposal: Marketing proposal for customer feedback.No commitment taken to design or produce
NRND: Not Recommended for New Design.Product is in volume production only to support customers ongoing production.Marketing description of the package type.Compliancy of the device with industry requirement domains (IRD)The RoHS status of a product:
ECOPACK 1: Initial grade to identify European RoHS compliant products.
ECOPACK 2: New grade to identify brominated chlorinated and antimony oxide flame retardant free products.
ECOPACK 3: Halogen free RoHS exemptions free products.
(*): ECOPACK 2 version available upon request.
(**): Some versions still existing in ECOPACK 1 or not compliant.The current status of a product:
Active: Product is in volume production
Evaluation: Product is under characterization. Limited Engineering samples available
Preview: Product is in design stage
Target: Product is in design feasibility stage.No commitment taken to produce
Proposal: Marketing proposal for customer feedback.No commitment taken to design or produce
NRND: Not Recommended for New Design.Product is in volume production only to support customers ongoing production.Budgetary PriceMarketing description of the package type.Storage method used to contain product.Main country of assembly or fabrication of the product.ECCNs are five character alpha-numeric designations used on the Commerce Control List to identify dual-use items for export control purposes. ECCNs are five character alpha-numeric designations used on the Commerce Control List to identify dual-use items for export control purposes.The value as specified by level (minTypMax) of the ambient temperature (in Cel) in which this item was designed to operate.The value as specified by level (minTypMax) of the ambient temperature (in Cel) in which this item was designed to operate.The value as specified by level (minTypMax) of the ambient temperature (in Cel) in which this item was designed to operate.