AT21CS01/AT21CS11 - Microchip Technology

AT21CS01/AT21CS11 Single-Wire, I/O Powered 1-Kbit (128 x 8) Serial EEPROM with a Unique, Factory-Programmed 64-Bit Serial NumberFeatures Low Voltage Operation: at21cs01 is self-powered via the to pull up voltage on the SI/O line at21cs11 is self-powered via the to pull up voltage on the SI/O line Internally Organized as 128 Words of Eight Bits Each (1-Kbit) Single-Wire Serial Interface with I2C Protocol Structure: Device communication is achieved through a single I/O pin Standard Speed and High-Speed Mode Options: kbps maximum bit rate in Standard Speed mode ( at21cs01 only) 125 kbps maximum bit rate in High-Speed mode ( at21cs01 and at21cs11 ) 8 Byte Page Write or Single Byte Writes Allowed Discovery Response Feature for Quick Detection of Devices on the Bus ROM Zone Support: Device is segmented into four 256 bit zones, each of which can be permanently maderead only (ROM) 256 bit Security Register: Lower eight bytes contains a factory-programmed, read-only, 64 bit serial number that isunique to all Microchip single wire products Next eight bytes are reserved for future use and will read FFh Upper 16 bytes are user programmable and permanently lockable Self Timed Write Cycle (5 ms maximum) Manufacturer Identification

AT21CS01/AT21CS11 Single-Wire, I/O Powered 1-Kbit (128 x 8) Serial EEPROM with a Unique, Factory-Programmed 64-Bit Serial Number Features • Low‑Voltage Operation:

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Tags:

  At21cs01 at21cs11, At21cs01, At21cs11

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