1-kb Dual Mode Serial EEPROM For VESA™ \"Plug-and-Play\"

The CAT24C21 is a 1-kb Serial CMOS EEPROM internally organized as 128 words of 8 bits each. The device complies with the Video Electronics Standard Association's (VESA), Display Data Channel (DDC) standards for "Plug-and-Play" monitors. The "transmit-only" mode (DDC1) is controlled by the VCLK Clock input and the "bi-directional" mode (DDC2) is controlled by the SCL Clock input, with both modes sharing a common SDA input/output (I/O). The transmit-only mode is a read-only mode, while the bi-directional mode is a read and write mode following the IC protocol. In write mode the CAT24C21 features a 16-byte page write Buffer The device is available in 8-in DIP, SOIC, TSSOP, MSOP and TDFN packages.
By Catalyst Semiconductor
CAT24C21 's PackagesCAT24C21 's pdf datasheet



CAT24C21 Pinout, Pinouts
CAT24C21 pinout,Pin out
This is one package pinout of CAT24C21,If you need more pinouts please download CAT24C21's pdf datasheet.

CAT24C21 Application circuits
CAT24C21 circuits
This is one application circuit of CAT24C21,If you need more circuits,please download CAT24C21's pdf datasheet.


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CAT24C21 Application Notes CAT24C21 RoHS CAT24C21 Circuits CAT24C21 footprint
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