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Home > Embedded ICs > Embedded - Memory > AT21CS01-STUM10-T
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AT21CS01-STUM10-T

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AT21CS01-STUM10-T Overview

The Microchip AT21CS01 is a 1 Kb Serial EEPROM utilizing theSingle-Wire bus. Only two pins are needed to access the device: SI/O and GND.The SI/O signal is a combination data and power line, providing power to thedevice with a parasitic power scheme. The device is organized as one block of 128x 8 and is optimized for use in consumer and industrial applications wherereliable and dependable nonvolatile memory storage is essential. The EEPROM isavailable in a variety of space-saving packaging options.

The AT21CS01 features a 256-bit Security register whichincludes a 64-bit serial number. The device also features manufacturer IDsupport in which the device responds with a unique value for density andrevision information.

Features

  • 128 x 8 (1 Kbit)
  • Single-Wire Compatible
    • I²C protocol structure
    • Communication through a single I/O pin
  • Standard Speed (15.4 kbps) and High Speed (125 kbps) Modes
  • Self-Timed Erase and Write Cycles (5 ms max.)
  • Low Power Consumption
    • Read current 0.08 mA (Typ), 0.3 mA (Max)
    • Write current 0.2 mA (Typ), 0.5 mA (Max)
    • Standby current 0.7 uA (Typ), 2.5 uA (Max)
  • Software Write Protection
    • Four independent 256-bit zones
  • More than 1 million erase/write cycles
  • Data retention > 100 years
  • ESD protection > 8000V (HBM)
  • Factory Programming Available
  • Available in 8-pin SOIC (150 mil), 3-pin SOT23, 2-pad XSFN, and 4-ball Thin CSP packages.

Specifications

  • Clock Frequency 125kHz

  • Operating Temperature -40℃ ~ 85℃ (TC)

  • Memory Interface I2C, Single Wire

  • Write Cycle Time - Word, Page 5ms

  • Memory Size 1Kb (128 x 8)

  • Package / Case TO-236-3, SC-59, SOT-23-3

  • Technology EEPROM

  • Voltage - Supply 1.7V ~ 3.6V

  • Mounting Type Surface Mount

  • Memory Type Non-Volatile

  • Memory Format EEPROM

  • Supplier Device Package SOT-23

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