AT24C04 , I2C , 2-Wire Serial EEPROM 4Kbits (512 x 8) EEPROM

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The AT24C01A/02/04/08A/16A provides 1024/2048/4096/8192/16384 bits of serialelectrically erasable and programmable read-only memory (EEPROM) organized as128/256/512/1024/2048 words of 8 bits each. The device is optimized for use in manyindustrial and commercial applications where low-power and low-voltage operationare essential. The AT24C01A/02/04/08A/16A is available in space-saving 8-leadPDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 5-lead SOT23(AT24C01A/AT24C02/AT24C04), 8-lead TSSOP, and 8-ball dBGA2 packages and isaccessed via a Two-wire serial interface. In addition, the entire family is available in2.7V (2.7V to 5.5V) and 1.8V (1.8V to 5.5V) versions.

The AT24C04 uses the A2 and A1 inputs for hard wire addressing and a total of four 4K
devices may be addressed on a single bus system. The A0 pin is a no connect and can
be connected to ground.

AT24C04, 4K SERIAL EEPROM: Internally organized with 32 pages of 16 bytes each,
the 4K requires a 9-bit data word address for random word addressing

Datasheet: Download


  • Low-voltage and Standard-voltage Operation–  
  •      2.7 (VCC = 2.7V to 5.5V)–  1.8 (VCC = 1.8V to 5.5V)
  • Internally Organized
  •        128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K),1024 x 8 (8K) or 2048 x 8 (16K)
  •   Two-wire Serial Interface
  • Schmitt Trigger, Filtered Inputs for Noise Suppression
  • Bidirectional Data Transfer Protoco
  • 100 kHz (1.8V) and 400 kHz (2.7V, 5V) Compatibility
  • Write Protect Pin for Hardware Data Protection
  • 8-byte Page (1K, 2K), 16-byte Page (4K, 8K, 16K) Write Modes
  • Partial Page Writes Allowed
  • Self-timed Write Cycle (5 ms max)
  • High-reliability–  Endurance: 1 Million Write Cycles
  • –  Data Retention: 100 Years
  • Automotive Devices Available
  • 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 5-lead SOT23, 8-lead TSSOP and 8-ball dBGA2 Packages
  • Die Sales: Wafer Form, Waffle Pack and Bumped Wafers

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