Microchip Technology AT21CS01 EEPROM device is self-powered via 1.7V to 3.6V pull-up voltage in the single I/O line low voltage operation. These AT21CS01 provide 1,024bits of serial EEPROM internally organized as 128 words of 8 bits each (1Kbit). This device shares a common single-wire bus with an I2C protocol structure from which communication is achieved through a single I/O pin. The AT21CS01 features a 15.4Kbps max bit rate in standard speed mode and a 125Kbps max bit rate in high-speed mode.
Typical applications for the Microchip Technology AT21CS01 EEPROM include analog sensor calibration data storage, ink and toner printer cartridge identification, and management of aftermarket consumables.
1.7V to 3.6V pull-up voltage on single I/O line
128 words of 8bits each organized internally
Single-wire serial interface with I2C protocol structure
8-byte Page write or single byte writes allowed
Discovery response feature for quick detection of devices on the bus
Four 256-bit ROM zones support
256-bit security register
5ms max self-timed write cycle
1,000,000 write cycles endurance
Die sale options in wafer form and tape and reel
IEC 61000-4-2 Level 4 ESD Compliant
Analog sensor calibration data storage
Ink and toner printer cartridge identification
Management of after-market consumables
Microchip Technology AT21CS11 1Kb Serial EEPROM
A 2-pin Serial EEPROM that harvests energy from the signal pin to power an integrated circuit.