The 93LC66A/P is an 8-pin, low-voltage, serial electrically erasable programmable read-only memory (EEPROM) device from Microchip. It offers 6,144 bits of nonvolatile memory. The 93LC66A/P is available in two different packaging options, an 8-pin PDIP package and a SOIC package. The device is designed to operate on a 3-volt power supply in industrial and commercial temperature range. The 93LC66A/P features low-power CMOS technology and is designed to operate at clock frequencies of up to 10 MHz. It has an 8-bit interface and supports both the Atmel and Microchip protocols. The 93LC66A/P features write protection, allowing the user to enable or disable write protection mode through the SPI port. It can also be selectedable written byte by byte, page by page, or the entire chip can be written in a sequential manner. The 93LC66A/P is a reliable and robust memory device, offering fast access times and low-power consumption.