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CAT24C05

4-Kb I²C CMOS Serial EEPROM with Partial Array Write Protection



Features Description Applications

FEATURES
  • Supports Standard and Fast I²C Protocol
  • 1.8 V to 5.5 V Supply Voltage Range
  • 16-Byte Page Write Buffer
  • Hardware Write Protection for upper half of 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
  • RoHS-compliant 8-lead PDIP, SOIC, and TSSOP, 8-pad TDFN and 5-lead TSOT-23 packages
DESCRIPTION

The CAT24C05 is a 4-kb CMOS Serial EEPROM device organized internally as 32 pages of 16 bytes each, for a total of 512x8 bits. The device supports both Standard (100kHz) as well as Fast (400kHz) I²C protocol.

Data is written by providing a starting address, then loading 1 to 16 contiguous bytes into a Page Write Buffer, and then writing all data to non-volatile memory in one internal write cycle. Data is read by providing a starting address and then shifting out data serially while automatically incrementing the internal address count.

Write operations can be inhibited for upper half of memory by taking the WP pin High.

External address pins make it possible to address up to four CAT24C05 devices on the same bus.

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
Catalyst carries the I²C protocol under a license from the Philips Corporation.
 
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24C05