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AT24CSW020

2Kb I2C compatible 2-wire Serial EEPROM with Software Write Protection and a Pre-programmed Serial Number

Status: In Production

Features:

  • 256 x 8 (2 Kbit)
  • Five Software Write Protection configuration options
  • Protection settings can be made permanent
  • Factory programmed 128-bit unique serial number
  • Available in a 4-ball Ultra-thin WLCSP package
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The Microchip AT24CSW020 is a 2 Kb Serial EEPROM utilizing an I2C (2-wire) serial interface. The device is organized as one block of 256 x 8 and is optimized for use in consumer applications where reliable and dependable nonvolatile memory storage is essential. The device features Software Write Protection, which can be used to write protect 1/4, 1/2, or the entire memory array and also provides the user the capability to make the write protection permanent. Additionally, the AT24CSW020 includes a 256-bit security register separate from the main array. The first half of the security register contains a 128-bit factory-programmed unique serial number while the remaining half is a user programmable and permanently lockable space. The 128-bit serial number is guaranteed unique across the entire CS series of Serial EEPROM products and eliminates the time consuming step of performing and ensuring serialization of a product on a manufacturing line.

Additional Features
  • 256 x 8 (2 Kbit)
  • 400 kHz and 1 MHz clock compatibility
  • Factory set hardware slave address
  • Five Software Write Protection configuration options
  • Protection settings can be made permanent
  • Factory programmed 128-bit unique serial number
  • Self-Timed Erase and Write Cycles (5 ms max.)
  • Read current 0.15 mA (Typ), 0.5 mA (Max)
  • Write current 0.2 mA (Typ), 1 mA (Max)
  • Standby current 0.1 uA (Typ), 0.8 uA (Max)
  • More than 1 million erase/write cycles
  • Data retention > 100 years
  • Available in a 4-ball Ultra-thin WLCSP package
Parametrics
Name
Value
Density
2k bits (x8)
Op. Volt Range (V)
1.7 to 3.6
Max. Clock Freq.
1 MHz
Page Size (bytes)
16
Temp Range (°C)
-40°C to +85°C
Endurance
1,000,000

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
AT24CSW020-UUM0B-T
0.000300
0.260000
4
WLCSP
0.658x0.646x0.33mm
SAC405
e1
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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