Memory chip

The CAT24C16 is an EEPROM serial 16-Kb I2C device internally organized as 128 pages of 16 bytes each. The device supports standard (100 kHz) protocol as well as fast (400 kHz) I2C protocol. Data is written by providing a start address, then loading 1 to 16 consecutive bytes into the page write cache, and then writing all the data to non-volatile memory in an internal write cycle. The way to read data is: provide the start address, then move out the data in order, and automatically increment the internal address count at the same time. External address pins enable addressing of up to one CAT24C16 device on the same bus.

The NV25020 is an EEPROM serial 2-Kb SPI - Automotive Grade 0 (+150°C) device internally organized as 256x8 bits. It has a 16-byte write buffer and supports the Serial Peripheral Interface (SPI) protocol. The device is enabled through the chip (CS) input. Also, the must-have bus signals are the clock input (SCK), data input (SI) and data output (SO) lines. The HOLD input can be used to suspend any serial communication with the NV250x0 devices. The device features hardware and software write protection, including partial protection and full array protection. On-chip ECC (Error Correction Code) at the byte level makes the device suitable for high-reliability applications. The device provides an additional identification page, which can be permanently write-protected.