I²C-Compatible (Two-Wire) Serial EEPROM 256‑Kbit (32,768 x 8) AT24C256C

1 Package Types (not to scale)

2 Pin Descriptions

2.1 Device Address Inputs (A0, A1, A2)

2.3 Serial Data (SDA)

2.4 Serial Clock (SCL)

2.5 Write-Protect (WP)

2.6 Device Power Supply

3.1 System Configuration Using Two-Wire Serial EEPROMs

3.2 Block Diagram

4 Electrical Characteristics

4.1 Absolute Maximum Ratings

4.2 DC and AC Operating Range

4.3 DC Characteristics

4.4 AC Characteristics

4.5 Electrical Specifications

5 Device Operation and Communication

5.1 Clock and Data Transition Requirements

5.2 Start and Stop Conditions

5.3 Acknowledge and No-Acknowledge

5.4 Standby Mode

5.5 Software Reset

6 Memory Organization

6.1 Device Addressing

7 Write Operations

7.3 Acknowledge Polling

7.4 Write Cycle Timing

7.5 Write Protection

8 Read Operations

8.1 Current Address Read

8.2 Random Read

8.3 Sequential Read

9 Device Default Condition from Microchip

10 Packaging Information

10.1 Package Marking Information

11 Revision History

Microchip Information

The Microchip Website

Product Change Notification Service

Customer Support

Product Identification System

Microchip Devices Code Protection Feature

Quality Management System

Worldwide Sales and Service

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