AT21CS11 Datasheet | Microchip Technology

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 munication 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 pliant (±8 k V Contact, ±15 k V Air Discharge) - Green (Lead-free/Halide-free/Ro HS pliant) 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. DS20005857D-page 1 Package Types 2-Pad XSFN (Top View) AT21CS01/AT21CS11 3-Lead SOT23 (Top View) SI/O GND...