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EEPROM
24C256 - 4096x8(32k) Serial CMOS EEPROM
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Photograph
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Features
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 Low Voltage and Standard-Voltage Operation
Internally Organized 16,384 x 8 and 32,768 x 8
2-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bi-directional Data Transfer Protocol
1MHz, 100kHz and 400kHz Compatibility
Write Protect Pin for Hardware Data Protection
64-byte Page Write Modes
Partial Page Writes are Allowed
Self-timed Write Cycle (5mS max)
High-Reliability, 100,000 Write Cycles, 40 Year Data Retention
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Pin Description
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| Pin Number |
Description |
| 1 |
A0 - Address Input |
| 2 |
A1 - Address Input |
| 3 |
NC - Not Connected |
| 4 |
GND - Ground |
| 5 |
SDA - Serial Data |
| 6 |
SCL - Serial Clock Input |
| 7 |
WP - Write Protect |
| 8 |
Vcc - Positive Power Supply |
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Pin Layout
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Dimensional Drawing
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Technical Data
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Data Sheet
| Atmel - Data Sheet for AT24C256 |
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Application Notes
| Atmel - Interfacing AT24CXX Serial EEPROMs with AT89CX051 MCU |
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Integrated Circuits