CAT34C02YI-G Datasheet/PDFThe CAT34C02YI-G is a very popular and reliable dual-interface, non-volatile (EEPROM) memory featuring Serial Peripheral Interface (SPI) and two-wire (I2C) bus formats. It provides a storage capacity of up to 32Kbits and data are organized in 256-bit blocks, with each block divided into 16 words of 8 bits. The CAT34C02YI-G offers fast write cycles and reliable data retention. It also comes with several features that can improve performance, including burst write, sector protection, and on-chip ECC.
The applications for the CAT34C02YI-G are wide ranging, from consumer and portable electronics to industrial automation and factory automation. In consumer electronics, it is increasingly used for low- level storage, such as for smart cards, personal digital assistants (PDAs), and mobile phones. In industrial automation, it is proving invaluable in data acquisition systems, as well as for programmable logic controllers (PLCs). It is also used in medical equipment, where its non-volatile nature ensures that data can always be retrieved when necessary.
The CAT34C02YI-G operates on a 3.3V power supply and 5V I/O. The device can communicate with both SPI and I2C bus formats. SPI communications are configured via the CS pin and are available in 1- or 2-wire modes. I2C communications are handled via the SDA and SCL pins, offering fast per word and burst write capabilities. The CAT34C02YI-G also comes with an on-chip ECC engine that provides error correction, ensuring that data is accurately read and written.
The device is programmed using an I2C write sequence followed by a read sequence. The write sequence sets up the address and data and the read sequence reads out the data. The data is then stored on the memory. The device also offers sector protection and burst write capabilities. Sector protection prevents data in a sector from being overwritten and burst write accelerates the write process by allowing multiple words to be stored at the same time.
The CAT34C02YI-G is an ideal solution for low-level storage in a variety of applications. With its fast write cycles, reliable data retention, and built-in error correction, it is proving itself to be a popular choice for many applications. It provides the reliability needed for today’s complex products and is quickly becoming a standard memory component in many industries.