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I²C-Compatible (Two-Wire) Serial EEPROM with a Security Register and Software Write Protection 4‑Kbit (512 x 8), 8‑Kbit (1,024 x 8) AT24CSW04X/AT24CSW08X
Features
Packages
1 Package Types (not to scale)
2 Pin Descriptions
2.1 Serial Clock (SCL)
2.2 Ground
2.3 Serial Data (SDA)
2.4 Device Power Supply (VCC)
2.5 Write-Protect (WP)
3 Description
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
7.1 Byte Write
7.2 Page Write
7.3 Acknowledge Polling
7.4 Write Cycle Timing
8 Write Protection
8.1 Hardware Write Protection
8.2 Software Write Protection of the EEPROM Array
8.3 Writing to the Write Protection Register
8.4 Reading the Write Protection Register
9 Read Operations
9.1 Current Address Read
9.2 Random Read
9.3 Sequential Read
10 Security Register
10.1 Custom Programming Option
10.2 Read Operations in the Security Register
10.3 Write Operations in the Security Register
11 Device Default Condition from Microchip
12 Packaging Information
12.1 Package Marking Information
13 Revision History
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