Overview
The Microchip AT24C02A-10PC is a 2 kb serial Electrically Erasable and Programmable Read-Only Memory (EEPROM) that communicates with the host controller using an I²C (2-wire) serial bus interface. This device is part of the AT24C0 series and is optimized for use in various industrial and commercial applications where low-power and low-voltage operation are essential. The AT24C02A-10PC can retain data for at least 100 years and supports more than 1 million erase and write cycles, making it highly reliable for long-term data storage.
Key Specifications
| Specification | Value |
|---|---|
| Memory Size | 2 kb (256 x 8 bits) |
| Interface | 2-wire I²C serial bus |
| Operating Voltage | 1.8V to 5.5V (specifically 2.7V to 5.5V for this model) |
| Operating Temperature | 0°C to 70°C (TA) |
| Package Type | 8-pin PDIP, 8-lead TSSOP, 8-lead JEDEC SOIC |
| Write Cycle Time | 10 ms max |
| Endurance | 1 million write cycles |
| Data Retention | 100 years |
| ESD Protection | >3000V |
| Clock Frequency | 100 kHz (1.8V, 2.5V, 2.7V), 400 kHz (5V) |
Key Features
- Low-voltage and standard-voltage operation (VCC = 2.7V to 5.5V)
- Internally organized 256 x 8 bits
- 2-wire serial interface with Schmitt trigger, filtered inputs for noise suppression
- Bidirectional data transfer protocol
- Write protect pin for hardware data protection
- 8-byte page write modes with partial page writes allowed
- Self-timed write cycle (10 ms max)
- High reliability with 1 million write cycles and 100 years data retention
- Automotive grade and extended temperature devices available
Applications
- Data retention in various applications
- Consumer and commercial grade products
- Communication systems
- Automobiles
- Consumer electronics
- Industrial applications
- Testing devices
Q & A
- What is the memory size of the AT24C02A-10PC?
The AT24C02A-10PC has a memory size of 2 kb, organized as 256 words of 8 bits each.
- What is the operating voltage range for the AT24C02A-10PC?
The operating voltage range is from 2.7V to 5.5V.
- What types of packages are available for the AT24C02A-10PC?
The device is available in 8-pin PDIP, 8-lead TSSOP, and 8-lead JEDEC SOIC packages.
- How many write cycles can the AT24C02A-10PC endure?
The device can endure more than 1 million write cycles.
- What is the data retention period of the AT24C02A-10PC?
The data retention period is at least 100 years.
- Does the AT24C02A-10PC support partial page writes?
- What is the maximum write cycle time for the AT24C02A-10PC?
The maximum write cycle time is 10 ms.
- Is the AT24C02A-10PC suitable for automotive applications?
- How many devices can be addressed on a single bus system?
- What is the purpose of the Write Protect (WP) pin?
The Write Protect pin provides hardware data protection.
