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AT21CS11

Microchip
Part Number AT21CS11
Manufacturer Microchip
Description EEPROM
Published Oct 1, 2018
Detailed Description AT21CS01/AT21CS11 Single-Wire, I/O Powered 1-Kbit (128 x 8) Serial EEPROM with a Unique, Factory-Programmed 64-Bit Seria...
Datasheet PDF File AT21CS11 PDF File

AT21CS11
AT21CS11


Overview
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 x 8 (1 Kbit) • Industrial Temperature Range: -40°C to +85°C • 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 contain a factory-programmed, read-only, 64‑bit serial number that is unique to all Microchip single‑wire devices – 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: Wafer Form and Tape and Reel Packages • 2-Pad XSFN, 3-Lead SOT23, 8-Lead SOIC and 4-Ball WLCSP © 2020 Microchip Technology Inc.
Datasheet DS20005857D-page 1 Package Types 2-Pad XSFN (Top View) 1 2 AT21CS01/AT21CS11 3-Lead SOT23 (Top View) SI/O GND 3 GND 2 NC 1 SI/O NC NC NC GND 8-Lead SOIC (Top View) 1 8 2 7 3 6 ...


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