12 Revision History
Revision H (October 2024)
Replaced the inadequate CRC formula with the CRC-8/Maxim algorithm; CRC-8/Maxim details are in the public domain; No changes to form, fit or function.
Revision G (November 2023)
Added VSFN package offering.
Revision F (June 2023)
Updated AT21S01 DC Characteristics table; Added Automotive Product Identification System.
Revision E (September 2022)
Updated XSFN package drawing to Microchip equivalent; Added TO-92 product offering; Replaced terminology “Master” and “Slave” with “Host” and “Client”, respectively; Updated SOIC package drawing.
Revision D (June 2020)
Updated SOT-23 package drawing to Microchip equivalent.
Revision C (November 2019)
Revised Figure 4-5. Corrected AT21CS11 Manufacturer ID. Clarified marking details.
Revision B (March 2019)
Fixed typo for AT21CS11 Manufacturer ID. Corrected tRESET timing from 48 μs to 96 μs. Updated Product Identification System section. Updated content throughout for clarification. Updated the 4-ball WLCSP and 3-lead SOT-23 Package Outline Drawings. Updated SOIC package drawing to Microchip format.
Revision A (October 2017)
Updated to Microchip template. Microchip DS20005857 replaces Atmel documents 8903 and 8975. Added XSFN package. Updated DC output current absolute maximum rating. Removed lead finish designation. Updated trace code format in package markings.
Atmel AT21CS11 Document 8975 Revision B (November 2015)
Removed Standard Speed mode.
Atmel AT21CS11 Document 8975 Revision A (August 2015)
Initial document release, Preliminary Status.
Atmel AT21CS01 Document 8903 Revision A (August 2015)
Initial document release.