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AT21CS01 Datasheet(PDF) 1 Page - Microchip Technology |
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AT21CS01 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 47 page  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: – AT21CS01 is self-powered via the 1.7V to 3.6V pull ‑up voltage on the SI/O line – AT21CS11 is self-powered via the 2.7V to 4.5V 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: – 15.4 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 made read ‑only (ROM) • 256 ‑bit Security Register: – Lower eight bytes contains a factory-programmed, read-only, 64 ‑bit serial number that is unique 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 Register: – Device responds with unique value for Microchip as well as density and revision information • High Reliability: – Endurance: 1,000,000 write cycles – Data retention: 100 years – IEC 61000-4-2 Level 4 ESD Compliant (±8 kV Contact, ±15 kV Air Discharge) • Green (Lead-free/Halide-free/RoHS Compliant) Package Options • Die Sale Options in Wafer Form and Tape and Reel Packages 2-pad XSFN, 3-lead SOT23, 8-lead SOIC and 4-ball thin WLCSP. © 2017 Microchip Technology Inc. Datasheet DS20005857A-page 1 |
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