AT24C04C-PUM

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1. Describe

Atmel® AT24C04C-PUM and AT24C08C provide 4,096/8,192-bit serial Electrically erasable programmable read-only memory (EEPROM) Organized into 512/1024 words, each word has 8 bits. This device has been optimized for Many industrial and commercial applications, among which low power and low voltage Operation is essential. AT24C04C/08C adopts space-saving 8-lead PDIP, 8-pin JEDEC SOIC, 8-pin TSSOP, 8-pad UDFN, 5-pin SOT23, and 8-ball The VFBGA is packaged and accessed through a 2-wire serial interface.

2. Features

    1. Low voltage and standard voltage operation

        - VCC = 1.7V to 5.5V

    2. Internal organization is 512 x 8 (4K) or 1024 x 8 (8K)

    3. I2C compatible (2-wire) serial interface

    4. Schmitt trigger, filter input for noise suppression

    5. Two-way data transmission protocol

    6. 1MHz (2.5V, 2.7V, 5V), 400kHz (1.7V) compatibility

    7. Write protection pin for hardware data protection

    8. 16-byte page write mode

        - Allow partial page write

    9. Self-timed write cycle (5ms Max)

  10. High reliability

        - Endurance: 1,000,000 write cycles

        - Data retention: 100 years

  11. Green package options (lead-free/halide-free/RoHS compliant)

        - 8-lead PDIP, 8-lead SOIC, 8-lead TSSOP, 8-pad UDFN, 5-lead SOT23, And 8 ball VFBGA

  12. Chip options: wafer form and tape and reel

3. Pin Configurations

4. Pin description

    1. Serial clock (SCL): SCL input is used to input positive edge clock data into each EEPROM device and output negative edge clock data from each device.

    2. Serial data (SDA): The SDA pin is bidirectional and is used for serial data transmission. This pin is open-drain drive and can be wired-ORed with any number of other open-drain or open-collector devices.

    3. Device/page address (A2 and A1): AT24C04C uses A2 and A1 inputs for hard-wire addressing, allowing a total of four 4K devices to be addressed on a single bus system. Pin 1 is no connection and can be grounded. AT24C08C only uses A2 input for hardware addressing, a total of two 8K devices can be addressed on a single bus system. The A0 and A1 pins are not connected and can be grounded.

    4. Write protection (WP): AT24C04C/08C has a write protection pin to provide hardware data protection. Write When connected to ground (GND), the protection pin allows normal read/write operations. When the write protection pin is connected to VCC, the write protection function is enabled.