Microchip 93AA46C-I/SN 1K Microwire Serial EEPROM: Features and Applications

The Microchip 93AA46C-I/SN is a 1Kbit Microwire serial Electrically Erasable Programmable Read-Only Memory (EEPROM) designed for applications requiring reliable non-volatile data storage with low power consumption and a simple interface. Organized as 128 x 8 or 64 x 16, this memory IC provides designers with flexibility in system configuration. Housed in a compact 8-pin SOIC package, it is well-suited for space-constrained PCB designs.

A key feature of this device is its low-power operation, making it ideal for battery-powered and portable electronics. It supports a wide voltage range from 1.8V to 5.5V, allowing it to function across various logic levels and power conditions. The Microwire serial interface simplifies communication with microcontrollers and other digital systems, requiring only a few GPIO pins for data transfer, clocking, and device selection. This interface supports both 16-bit and 8-bit instruction modes, offering versatility in different system architectures.

The EEPROM also includes essential reliability features such as built-in write protection via software control and a self-timed erase/write cycle, which eliminates the need for external timing components. With an endurance of 1 million erase/write cycles and data retention of over 200 years, it ensures long-term data integrity in demanding environments.

Applications of the 93AA46C-I/SN are widespread across industries. It is commonly used in automotive systems for storing calibration data, vehicle identification numbers (VIN), and user settings. In consumer electronics, it is found in smart meters, set-top boxes, printers, and gaming peripherals for parameter storage. The medical industry utilizes it in portable medical devices to retain critical device configuration and patient data. Additionally, it serves in industrial automation for storing equipment parameters and operational logs.

ICGOODFIND: The Microchip 93AA46C-I/SN is a versatile and robust 1K Microwire EEPROM, offering an optimal blend of low power, high reliability, and a simple interface, making it a preferred choice for non-volatile memory needs in automotive, consumer, medical, and industrial applications.

Keywords: Microwire Serial EEPROM, Low-Power Operation, Non-Volatile Memory, SOIC Package, Write Protection