Microchip AT21CS11-SSH10-B, 1kbit EEPROM Chip 8-Pin SOIC Serial-1 Wire

The Microchip Technology AT21CS01/11 is an 8-pin surface mount SOIC package serial-1 wire EEPROM memory chip. It provides 1,024 bits of serial electrically erasable and programmable read-only memory (SEEPROM) organized as 128 words of eight bits each. This device is optimized to add configuration and use information in unpowered attachments using a two-point mechanical connection that brings only one signal (SI/O) and GND to the unpowered attachment. Only two pins are needed to access the device: SI/O and GND. The SI/O signal is a combination data and power line, providing power to the device with a parasitic power scheme. This device is used in industries.

• 256-bit security register
• 8-byte page write or single byte writes allowed
• Device responds with unique value for Microchip as well as density and revision information
• Die sale options in wafer form and tape and reel
• Discovery response feature for quick detection of devices on the bus
• High reliability
• Internally organized as 128 words of eight bits each (1-kbit)
• Low voltage operation
• Operating temperature ranges between -40°C and 85°C
• ROM zone support
• Self-timed write cycle
• Single-wire serial interface with I2C protocol structure
• Standard speed and high-speed mode options