AT21CS01-STUM10-T Description

The AT21CS01-STUM10-T is a  2-pin memory (SI/O and Ground) that harvests energy from the SI/O pin to power the integrated circuit.

AT21CS01-STUM10-T 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 K-bit)

• 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:

  – The 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

AT21CS01-STUM10-T Applications

• Industrial