Overview
The Microchip AT24C02D-PUM is a 2 kb serial Electrically Erasable 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, which offers various memory capacities. The AT24C02 specifically provides 256 x 8 bits of memory, organized as 256 words of 8 bits each. It is designed for low-power and low-voltage applications, making it suitable for both industrial and commercial use.
Key Specifications
| Specification | Value |
|---|---|
| Memory Type | EEPROM |
| Memory Capacity | 2 kb (256 x 8 bits) |
| Communication Interface | I2C (2-wire serial bus) |
| Min Operating Temperature | -40 °C |
| Min Supply Voltage | 1.7 V |
| Max Clock Frequency | 400 kHz (at 1.7 V), 1 MHz (above 2.5 V) |
| Read Current | 0.4 mA (Typ), 1 mA (Max) |
| Standby Current | 6 uA (Max) |
| Data Retention | > 100 years |
| Erase/Write Cycles | > 1 million |
| Write Protect | Hardware write-protect pin |
| Package Type | 8-PDIP |
Key Features
- Low power consumption with a typical read current of 0.4 mA and a maximum standby current of 6 uA.
- Supports up to 8 devices on the I2C bus.
- Self-timed erase and write cycle with a maximum of 5 ms.
- Hardware write-protect pin for data security.
- More than 1 million erase/write cycles.
- Data retention of more than 100 years.
- Extended temperature range available (Grade 1, 2, and 3 as defined in AEC-Q100).
- Qualified for automotive applications.
- Factory programming available.
Applications
- Data retention in various applications.
- Consumer-grade products requiring low-power and low-voltage memory solutions.
- Commercial-grade products, including industrial and automotive applications.
Q & A
- What is the memory capacity of the AT24C02D-PUM? The AT24C02D-PUM has a memory capacity of 2 kb, organized as 256 words of 8 bits each.
- What communication interface does the AT24C02D-PUM use? The AT24C02D-PUM communicates using an I2C (2-wire serial bus) interface.
- What is the minimum operating temperature of the AT24C02D-PUM? The minimum operating temperature is -40 °C.
- What is the minimum supply voltage required for the AT24C02D-PUM? The minimum supply voltage is 1.7 V.
- How many devices can be supported on the I2C bus by the AT24C02D-PUM? The AT24C02D-PUM supports up to 8 devices on the I2C bus.
- What is the data retention period of the AT24C02D-PUM? The data retention period is more than 100 years.
- How many erase/write cycles does the AT24C02D-PUM support? The AT24C02D-PUM supports more than 1 million erase/write cycles.
- Does the AT24C02D-PUM have a write-protect feature? Yes, it has a hardware write-protect pin.
- Is the AT24C02D-PUM qualified for automotive applications? Yes, it is qualified for automotive applications.
- Is factory programming available for the AT24C02D-PUM? Yes, factory programming is available.
