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24LCS21A

1Kb I2C Serial EEPROM for DDC1™/DDC2™ Monitor Identification

Status: In Production

Features:

  • Single Supply with Operation Down to 2.5V
  • Completely Implements DDC1™/DDC2™ Interface for Monitor Identification, Including Recovery to DDC1
  • Low-Power CMOS Technology: - 1 mA active current, typical - 10 uA standby current, typical at 5.5V
  • 2-Wire Serial Interface Bus, I2C™ Compatible
  • 100 kHz (2.5V) and 400 kHz (5V) Compatibility
  • Self-Timed Write Cycle (including Auto-Erase)
  • Hardware Write-Protect Pin
  • Page Write Buffer for up to Eight Bytes
  • 1,000,000 Erase/Write Cycles Ensured
  • Data Retention > 200 years
  • ESD Protection > 4000V
  • 8-pin PDIP and SOIC Package
  • Available for Extended Temperature Ranges: - Industrial (I): -40°C to +70°C
  • Pb-Free and RoHS Compliant
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The Microchip Technology Inc. 24LCS21A is a 128 x 8-bit dual-mode Electrically Erasable PROM. This device is designed for use in applications requiring storage and serial transmission of configuration and control information. Two modes of operation have been implemented: Transmit-Only mode and Bidirectional mode. Upon power-up, the device will be in the Transmit-Only mode, a valid high-to-low transition on the SCLpin will cause the device to enter the Transition mode and look for a valid control byte on the I2C™Compatible bus. If it detects a valid control byte from the master, it will switch into Bidirectional mode, with byte selectable read/write capability of the memory array using SCL. If no control byte is received, the device will revert to the Transmit-Only mode after it receives 128 consecutive VCLK pulses while the SCL pin is idle. The 24LCS21A also enables the user to write-protect the entire memory array using its write-protect pin. The 24LCS21A is available in a standard 8-pin PDIP and SOIC package in industrial temperature range.

Additional Features
  • Single Supply with Operation Down to 2.5V
  • Completely Implements DDC1™/DDC2™ Interfacefor Monitor Identification, Including Recoveryto DDC1
  • Low-Power CMOS Technology: - 1 mA active current, typical - 10 uA standby current, typical at 5.5V
  • 2-Wire Serial Interface Bus, I2C™ Compatible
  • 100 kHz (2.5V) and 400 kHz (5V) Compatibility
  • Self-Timed Write Cycle (including Auto-Erase)
  • Hardware Write-Protect Pin
  • Page Write Buffer for up to Eight Bytes
  • 1,000,000 Erase/Write Cycles Ensured
  • Data Retention > 200 years
  • ESD Protection > 4000V
  • 8-pin PDIP and SOIC Package
  • Available for Extended Temperature Ranges:- Industrial (I): -40°C to +70°C
  • Pb-Free and RoHS Compliant
Parametrics
Name
Value
Density
1K bits (x8)
Op. Volt Range (V)
2.5 to 5.5
Max. Clock Freq.
400 kHz
Page Size (bytes)
8
Write Protect
Whole Array
Temp Range (°C)
-40°C to +85°C
Endurance
1,000,000

Documents

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Data Sheet

10/05/2007
441KB

Reference Manual

Product Line Card

Brochures

Video

Webinars

01/27/2010
31187KB
01/27/2010
38593KB
01/27/2010
33683KB

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
Serial EEPROM PIM PICtail Pack
Serial EEPROM PIM PICtail Pack ( AC243003 )

The Serial EEPROM PIM PICtail™ Modules are a series of boards designed around Microchip Serial EEPROM devices. The boards are designed to interface with the PICtail Plus connector as well as the MPLAB® Starter Kit for Serial Memory Products and the PICkit™ 2, allowing you to get started right out of the box.

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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
24LCS21A/SN
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
24LCS21A-I/SN
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
24LCS21AT/SN
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
24LCS21AT-I/SN
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
24LCS21A/P
0.486700
0.900000
8
PDIP
.300in
Matte Tin
e3
24LCS21A-I/P
0.486700
0.900000
8
PDIP
.300in
Matte Tin
e3
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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