CAT24C256: 256-kb I2C Serial CMOS EEPROM Memory

The CAT24C256 is a 256-kb Serial CMOS EEPROM, internally organized as 512 pages of 64 bytes each, for a total of 32,768 bytes of 8 bits each.It features a 64-byte page write buffer and supports the Standard (100 kHz), Fast (400 kHz) and Fast-Plus (1 MHz) I2C protocol.Write operations can be inhibited by taking the WP pin High (this protects the entire memory).External address pins make it possible to address up to eight CAT24C256 devices on the same bus.On-Chip ECC (Error Correction Code) makes the device suitable for high reliability applications.

Features
  • Supports Standard, Fast and Fast-Plus I2C Protocol
  • 1.8 V to 5.5 V Supply Voltage Range
  • 64-Byte Page Write Buffer
  • Hardware Write Protection for Entire Memory
  • Schmitt Triggers and Noise Suppression Filters on I2C Bus Inputs (SCL and SDA)
  • Low Power CMOS Technology
  • 1,000,000 program/erase cycles
  • 100 Year Data Retention
  • Industrial temperature range
  • Industrial and Extended Temperature Range
  • PDIP, SOIC, TSSOP, MSOP 8-Lead and TDFN, UDFN 8-Pad Packages
  • This Device is Pb-Free, Halogen Free/BFR Free and RoHS Compliant
Applications
  • Alarm Systems
  • Audio Players
  • Automotive Systems
  • Cable Modems
  • CDRW
  • Cellular Phones
  • Cordless Phones
  • CRT/LCD Monitors
  • Digital Still Cameras
  • DRAM Modules
  • DVD Players
  • Graphic Cards
  • Hard Disk Drives
  • Health Meters
  • Industrial Controls
  • Internet Phone Handsets
  • Memory Modules
  • Notebook PC
  • Personal Computers
  • Printers
  • Set Top Box
  • Smart Phones
  • TV
  • Telecommunications
  • Two Way Radios
  • Video Games
  • Video Tape Recorder
  • Vending Machines
  • Wireless LANs
Software (2)
Document TitleDocument ID/SizeRevisionRevision Date
EASYPRO1GEVB Software OS x64 (Version 3.2.8)EASYPRO1GEVB_SOFTWARE.X64.ZIP (7134.0kB)3.2.8
EASYPRO1GEVB Software OS x86 (Version 3.2.8)EASYPRO1GEVB_SOFTWARE.X86.ZIP (7030.0kB)3.2.8
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
256-kb I2C Serial CMOS EEPROMCAT24C256/D (199kB)14JAN, 2014
Package Drawings (5)
Document TitleDocument ID/SizeRevision
PDIP-8, 300 mils646AA (55.8kB)A
SOIC 8, 150 mils751BD (55.6kB)revo
SOIC-8, 208 mils751BE (55.9kB)revo
TSSOP8, 4.4x3948AL (55.7kB)revo
UDFN8, 2x3, 0.5P, Extended Pad517AZ (34.7kB)A
Simulation Models (19)
Document TitleDocument ID/SizeRevisionRevision Date
IBIS Model for CAT24C256LE Rev. E (VCC = 2.2 V)24C256P22V_REV_E.IBS (47.0kB)2
IBIS Model for CAT24C256LE Rev. E (VCC = 3.3 V)24C256P33V_REV_E.IBS (52.0kB)2
IBIS Model for CAT24C256LE Rev. E (VCC = 5.0 V)24C256P50V_REV_E.IBS (46.0kB)2
IBIS Model for CAT24C256LI (VCC = 2.2 V)24256D22.IBS (48.0kB)1
IBIS Model for CAT24C256LI (VCC = 3.3 V)24256D33.IBS (50.0kB)1
IBIS Model for CAT24C256LI (VCC = 5.0 V)24256D50.IBS (56.0kB)1
IBIS Model for CAT24C256WE Rev. E (VCC = 2.2 V)24C256S22V_REV_E.IBS (47.0kB)1
IBIS Model for CAT24C256WE Rev. E (VCC = 3.3 V)24C256S33V_REV_E.IBS (52.0kB)2
IBIS Model for CAT24C256WE Rev. E (VCC = 5.0 V)24C256S50V_REV_E.IBS (46.0kB)2
IBIS Model for CAT24C256WI (VCC = 2.2 V)24256S22.IBS (48.0kB)1
IBIS Model for CAT24C256WI (VCC = 3.3 V)24256S33.IBS (50.0kB)1
IBIS Model for CAT24C256WI (VCC = 5.0 V)24256S50.IBS (56.0kB)1
IBIS Model for CAT24C256YE Rev. E (VCC = 2.2 V)24C256TS22V_REV_E.IBS (47.0kB)2
IBIS Model for CAT24C256YE Rev. E (VCC = 3.3 V)24C256TS33V_REV_E.IBS (52.0kB)2
IBIS Model for CAT24C256YE Rev. E (VCC = 5.0 V)24C256TS50V_REV_E.IBS (46.0kB)2
IBIS Model for CAT24C256YI rev. D (VCC = 2.2 V)24C256_TSSOP_22.IBS (39.0kB)1
IBIS Model for CAT24C256YI rev. D (VCC = 3.3 V)24C256_TSSOP_33.IBS (49.0kB)1
IBIS Model for CAT24C256YI rev. D (VCC = 5.0 V)24C256_TSSOP_50.IBS (56.0kB)1
Parameterized Verilog Model for CAT24XXXX I²C Serial EEPROMsVER_I2C_EEPROM.ZIP (23.0kB)1
Evaluation Board Documents (1)
Document TitleDocument ID/SizeRevisionRevision Date
EASYPRO1GEVB Evaluation Board User's ManualEVBUM2027/D (1061.0kB)3
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
EASYPRO1GEVBActiveSerial EEPROM Evaluation Board
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
CAT24C256HU4IGT3ActivePb-free Halide freeUDFN-8517AZ1Tape and Reel3000$0.4
CAT24C256LI-GActive, Not RecPb-free Halide freePDIP-8646AANATube50$0.3867
CAT24C256WI-GT3ActivePb-free Halide freeSOIC-8751BD1Tape and Reel3000$0.3672
CAT24C256XE-T2ActivePb-free Halide freeSOIC-8751BE3Tape and Reel2000$0.5155
CAT24C256XI-T2ActivePb-free Halide freeSOIC-8751BE3Tape and Reel2000$0.3867
CAT24C256YI-GT3ActivePb-free Halide freeTSSOP-8948AL1Tape and Reel3000$0.36
Specifications
ProductTypeDensityOrganizationData Transmission Standardfcycle Max (kHz)tACC Max nsVCC Min (V)VCC Max (V)Istandby Max (µA)Iact Max (mA)T Min (°C)T Max (°C)
CAT24C256HU4IGT3Serial256 kb32k x 8I2C10004001.85.523-4085
CAT24C256WI-GT3Serial256 kb32k x 8I2C4009001.85.511-4085
CAT24C256XE-T2Serial256 kb32k x 8I2C4009002.55.511-40125
CAT24C256XI-T2Serial256 kb32k x 8I2C4009001.85.511-4085
CAT24C256YI-GT3Serial256 kb32k x 8I2C4009001.85.511-4085
256-kb I2C Serial CMOS EEPROM (199kB) CAT24C256
EASYPRO1GEVB SOFTWARE EASYPRO1GEVB
EASYPRO1GEVB SOFTWARE EASYPRO1GEVB
IBIS Model for CAT24C256LE Rev. E (VCC = 2.2 V) CAT24C256
IBIS Model for CAT24C256LE Rev. E (VCC = 3.3 V) CAT24C256
IBIS Model for CAT24C256LE Rev. E (VCC = 5.0 V) CAT24C256
IBIS Model for CAT24C256LI (VCC = 2.2 V) CAT24C256
IBIS Model for CAT24C256LI (VCC = 3.3 V) CAT24C256
IBIS Model for CAT24C256LI (VCC = 5.0 V) CAT24C256
IBIS Model for CAT24C256WE Rev. E (VCC = 2.2 V) CAT24C256
IBIS Model for CAT24C256WE Rev. E (VCC = 3.3 V) CAT24C256
IBIS Model for CAT24C256WE Rev. E (VCC = 5.0 V) CAT24C256
IBIS Model for CAT24C256WI (VCC = 2.2 V) CAT24C256
IBIS Model for CAT24C256WI (VCC = 3.3 V) CAT24C256
IBIS Model for CAT24C256WI (VCC = 5.0 V) CAT24C256
IBIS Model for CAT24C256YE Rev. E (VCC = 2.2 V) CAT24C256
IBIS Model for CAT24C256YE Rev. E (VCC = 3.3 V) CAT24C256
IBIS Model for CAT24C256YE Rev. E (VCC = 5.0 V) CAT24C256
IBIS Model for CAT24C256YI rev. D (VCC = 2.2 V) CAT24C256
IBIS Model for CAT24C256YI rev. D (VCC = 3.3 V) CAT24C256
IBIS Model for CAT24C256YI rev. D (VCC = 5.0 V) CAT24C256
Parameterized Verilog Model for CAT24XXXX I²C Serial EEPROMs CAT24C32
EVBUM2027/D - 1061 EASYPRO1GEVB
UDFN8, 2x3, 0.5P, Extended Pad CAT93C86B
PDIP-8, 300 mils CAT93C86B
SOIC 8, 150 mils CAV93C86
SOIC-8, 208 mils CAT93C86B
TSSOP8, 4.4x3 PCA9306
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