AT93C46-10SU-2.7 Microchip Technology IC EEPROM 1KBIT SPI 2MHZ 8SOIC

The AT93C46-10SU-2.7 is an EEPROM (Electrically Erasable Programmable Read-Only Memory) integrated circuit manufactured by Microchip Technology. Here are the main specifications and details about this component:


  • Manufacturer: Microchip Technology
  • Model: AT93C46-10SU-2.7
  • Type: EEPROM (Electrically Erasable Programmable Read-Only Memory)
  • Capacity: 1Kbit (128 x 8 bits)
  • Interface: Serial Peripheral Interface (SPI)
  • Maximum Clock Speed: 2MHz
  • Package: 8-SOIC (Small Outline Integrated Circuit)
  • DataSheet AT93C46-10SU-2.7 PDF

Key Features:

  1. EEPROM Memory: The AT93C46-10SU-2.7 is a non-volatile memory chip that can retain stored data even when power is removed.

  2. Capacity: With a capacity of 1Kbit, it can store 128 bytes of data, each containing 8 bits.

  3. Interface: The chip communicates using the Serial Peripheral Interface (SPI) protocol, making it suitable for connecting to microcontrollers and other devices.

  4. Maximum Clock Speed: The chip supports a maximum clock speed of 2MHz, allowing for relatively fast data transfer.

Common Uses and Applications:

  • Data Storage: Used for storing configuration data, calibration parameters, and other information in various electronic devices.

  • Embedded Systems: Suitable for embedded systems where non-volatile memory is needed.

  • Device Identification: Often used for storing unique device IDs or serial numbers.

  • Configuration Memory: Employed in devices that require configuration memory, such as networking equipment or industrial controllers.

Working Principle:

  • The EEPROM can be written to and read from using SPI communication, allowing for easy integration into microcontroller-based systems.

  • Data can be written in bytes and read back as needed, offering non-volatile storage of critical information.

Interface and Connection:

  • The chip communicates via SPI, which typically involves connecting SCK (clock), MOSI (master output/slave input), MISO (master input/slave output), and SS (slave-select) pins to a microcontroller or another SPI master device.

Timing and Performance:

  • The maximum clock speed of 2MHz indicates the rate at which data can be transferred between the EEPROM and the controlling device.

Application Examples:

  1. Microcontroller Data Storage: Used in microcontroller projects for storing program data, sensor readings, or system configurations.

  2. Industrial Control Systems: Employed in industrial automation for storing calibration parameters or device settings.

  3. Electronic Identification: Utilized to store unique IDs in devices for identification or authentication purposes.

  4. Consumer Electronics: Found in various consumer electronics devices for storing small amounts of persistent data.

Before integrating the AT93C46-10SU-2.7 EEPROM into your design, consult the datasheet provided by Microchip Technology for detailed information on electrical characteristics, protocol specifications, pin configurations, and application guidelines to ensure proper functionality within your system.

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