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The Microchip Technology Inc. 24LCS22A is a 256 x 8-bit dual-mode Electrically Erasable PROM (EEPROM). 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 (1K-bit) and Bidirectional mode (2K-bit). Upon power-up, the device will be in the Transmit-Only mode, sending a serial bit stream of the memory array from 00h to 7Fh, clocked by the VCLK pin. A valid high-to-low transition on the SCL pin will cause the device to enter the Transition mode, and look for a valid control byte on the I²C 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 entire 2K 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.

Product Training Modules:
  • Access Time:900ns
  • Clock Frequency:400kHz
  • Memory Format:EEPROM
  • Memory Interface:I²C
  • Memory Size:2Kb (256 x 8)
  • Memory Type:Non-Volatile
  • Operating Temperature:-40°C ~ 85°C (TA)
  • Supplier Device Package:8-PDIP ~ 8-SOIC
  • Technology:EEPROM
  • Voltage - Supply:2.5V ~ 5.5V
  • Write Cycle Time - Word, Page:10ms

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24LCS22A-I/SN24LCS22A-I/SNIC EEPROM 2K I2C 400KHZ 8SOIC Non-VolatileEEPROMEEPROM2Kb (256 x 8)8-SOIC (0.154", 3.90mm Width)RoHS
24LC22AT-I/SN24LC22AT-I/SNIC EEPROM 2KB I2C 400KHZ 8SOIC Non-VolatileEEPROMEEPROM2Kb (256 x 8)8-SOIC (0.154", 3.90mm Width)RoHS
24LCS22AT-I/SN24LCS22AT-I/SNIC EEPROM 2K I2C 400KHZ 8SOIC Non-VolatileEEPROMEEPROM2Kb (256 x 8)8-SOIC (0.154", 3.90mm Width)RoHS
24LCS22A-I/P24LCS22A-I/PIC EEPROM 2K I2C 400KHZ 8DIP Non-VolatileEEPROMEEPROM2Kb (256 x 8)8-DIP (0.300", 7.62mm)RoHS

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Associated Product
Microchip Technology 24LC22A-I/SN
Category: Semiconductors, Development Tools-Memory-Memory ICs-EEPROM