Atmel AT24C128C Memory Smart Card 128K Bits

Atmel AT24C128C Memory Smart Card 128K Bits


In stock

  • 100 x Blank White PVC Atmel Chip Cards
  • Atmel AT24C128C Chip
  • 128Kb (131,072) Serial EEPROM
  • I²C (2-wire) Serial Interface
  • 1 Block of 16,384 x 8
  • In Stock – Available Immediately!
  • Custom Card Options Available

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The Atmel AT24C128C smart card is a 128Kb (131,072) Serial EEPROM utilizing an I²C (2-wire) serial interface. This smart card is organized as one block of 16,384 x 8 and is ideal for advanced, low power applications such as large record storage and medical applications where low cost per bit is a driving factor and where reliable and dependable nonvolatile memory storage is essential.

Program the Atmel AT24C128C Memory Card with CardLogix’ Smart Toolz™ development kit featuring the user-friendly Card Configuration Utility (CCU), Winplex™ API, and CardAppz™ application software.

The AT24C128C is available in PVC, ABS, PET, Composite, and Polycarbonate CR-80, SAM/SIM Card, and Keychain form factors.


Unique combination of capabilities that cannot be found in any other memory solution. These features include byte-write alterability, nonvolatile data storage, 1 million cycles of write endurance, very low power supply voltage operation, 100 year data retention, low pin-count packages, low cost of ownership, and extremely low active and standby currents.

I²C-compatible — (2-wire) Simple interface, yet the most popular choice for various microcontroller, microprocessor, and system-on-a-chip (SoC) solutions. I²C devices support cascading of up to eight Serial EEPROMs on the same bus and offer varying types of write protection.

High performance — Atmel Serial EEPROM devices offer low active and standby currents yet operate at fast clock frequencies and offer fast write cycle times

Write Protection — The AT24C128C utilizes a hardware data protection scheme that allows the user to write protect the entire memory contents when the WP pin is at VCC (or a valid VIH). No write protection will be set if the WP pin is at GND or left floating.


  • Voltage operating range: 2.5 V to 5.5 V
    • Peak write current 3 mA at 5.0 V
    • Maximum read current 1 mA at 5.0 V
    • Standby current 10 μA typical
  • Industry standard two wire bus protocol
    • I²C™ compatible
  • 8-byte page or 8-byte write mode available
  • 5 ms max write cycle time
  • Includes 100 kHz (2.7 V) and 400 kHz (5.0 V) Compatibility
  • Filtered inputs for noise suppression
  • Power on/off data protection circuitry
  • Endurance: 1,000,000 E/W cycles guaranteed
  • Electrostatic discharge protection > 4,000 V
  • Data retention > 100 years
  • RoHS Compliant


Atmel Corporation is a worldwide leader in the design and manufacture of microcontrollers, capacitive touch solutions, advanced logic, mixed-signal, nonvolatile memory and radio frequency (RF) components. Leveraging one of the industry’s broadest intellectual property (IP) technology portfolios, Atmel® provides the electronics industry with complete system solutions focused on industrial, consumer, security, communications, computing and automotive markets.

Atmel Corporation 1600 Technology Drive, San Jose, CA 95110

USA T: (+1)(408) 441.0311 F: (+1)(408) 436.4200 |