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AT24C21 EEPROM

AT24C21 EEPROM Series Datasheet

The ATMEL AT24C21 provides 1024 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 128 words of 8 bits each. The device is optimized for use in applications requiring data storage and serial transmission of configuration and control information. The AT24C21 features two modes of operation: Transmit-only Mode and Bidirectional Mode. Upon power-up, the AT24C21 will be in the Transmit-only Mode, sending a serial-bit stream of the entire memory contents, clocked via the VCLK pin. The Bidirectional Mode is selected by a valid high-to-low transition on the SCL pin and offers byte selectable read/write capability of the entire memory array. The AT24C21 is available in space saving 8-pin PDIP and 8-lead SOIC packages.


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AT24C21-10PC-2.5 AT24C21-10PC-2.5V AT24C21-10PI-2.5 AT24C21-10SC-2.5
AT24C21-10SC-2.7 AT24C21-10SI-2.5 AT24C21-PC25 AT24C21-PI-2.5
AT24C21-SC10-2.5 AT24C21-SC25
AT24C21 EEPROM Package Types
family combined
Plastic Dual-In-Line Package (PDIP)
family combined
Small-Outline Package (SOP)
AT24C21 EEPROM Series Part Photos
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AT24C21 EEPROM


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Ordering Information
Select from our Available Inventory for an Immediate Price Quote
AT24C21-10PC-2.5 AT24C21-10PC-2.5V AT24C21-10PI-2.5 AT24C21-10SC-2.5
AT24C21-10SC-2.7 AT24C21-10SI-2.5 AT24C21-PC25 AT24C21-PI-2.5
AT24C21-SC10-2.5 AT24C21-SC25

AT24C21 EEPROM


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Marking Information

AT24C21 EEPROM


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AT24C21 EEPROM Part Photos
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AT24C21 EEPROM
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AT24C21 EEPROM

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