Pin Configuration
The pin configuration in tabular is detailed below:
| Pin Number | Pin Name | Function |
|---|---|---|
| 1 | A0 | Address0 pin |
| 2 | A1 | Address1 pin |
| 3 | A2 | Address2 pin |
| 4 | GND | Ground Pin |
| 5 | SDA | Open-drain Serial Data line pin |
| 6 | SCL | Serial Clock line pin |
| 7 | WP | Write Protect pin |
| 8 | VCC | Positive Power supply pin |
Address pins
These are the address pins of the integrated EEPROM chip. It is capable of connecting eight different 1K/2K devices on a single bus.
I2C Interface
The device has an inter-integrated circuit for data communication between the devices and EEPROM. SCL is the clock line of the protocol while SDA is a dual-directional line for transferring serial data.
Write Protect
The write protection is provided to the device to prevent any data modification. When it is connected to GND, it serves normal Write/Read operations. To enable the write protection attribute, connect it to the power supply pin.
Block Diagram
The block diagram to understand the internal circuitry of the EEPROM is as shown:
24C02 Key Features
- Low-voltage and Standard-voltage Operation
- 2.7 (VCC = 2.7V to 5.5V)
- 1.8 (VCC = 1.8V to 5.5V)
- Internally Organized 256 x 8 (2K)
- Two-wire Serial Interface
- Schmitt Trigger, Filtered Inputs for Noise Suppression
- Bidirectional Data Transfer Protocol
- 100 kHz (1.8V) and 400 kHz (2.7V, 5V) Compatibility
- Write Protect Pin for Hardware Data Protection
- 8-byte Page (1K, 2K) Write Modes
- Partial Page Writes Allowed
- Self-timed Write Cycle (5 ms max)
- High-reliability
- Endurance: 1 Million Write Cycles
- Data Retention: 100 Years
Applications
- Communication systems
- Automobiles
- Data Storage
- Consumer electronics
- Industrial applications
- Testing devices
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