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1. Description
The Microchip Technology Inc.
24AA02E48/24AA025E48/24AA02E64/24AA025E64 (24AA02XEXX) is a 2 Kbit Electrically Erasable PROM. The device is organized as two blocks of 128 x 8-bit memory with a 2-wire serial interface.
Low-voltage design permits operation down to 1.7V,with maximum standby currents of only 1 µA for I-Temp. and 5 µA for E-Temp., as well as a maximum active current of 1 mA. The 24AA02XEXX also has a page write capability for up to eight bytes of data (16 bytes on the 24AA025E48/24AA025E64). The 24AA02XEXX is available in the standard 8-pin SOIC, 5-lead SOT-23, and 6-lead SOT-23 packages.
2. Features
1. Pre-Programmed Globally Unique, 48-bit or 64-bit Node Address
2. Compatible with EUI-48™ and EUI-64™
3. Single Supply with Operation Down to 1.7V
4. Low-Power CMOS Technology:
- Read current 1 mA, maximum
- Standby current: 1 µA, maximum (I-Temp.)
5 µA, maximum (E-Temp.)
5. 2-Wire Serial Interface, I2C Compatible
6. Schmitt Trigger Inputs for Noise Suppression
7. Output Slope Control to Eliminate Ground Bounce
8. 100 kHz and 400 kHz Clock Compatibility
9. Page Write Time 3 ms, typical
10. Self-Timed Erase/Write Cycle
11. Page Write Buffer:
- 8-byte page (24AA02E48/24AA02E64)
- 16-byte page (24AA025E48/24AA025E64)
12. ESD Protection >4,000V
13. More than 1 Million Erase/Write Cycles
14. Data Retention >200 Years
15. Factory Programming Available
16. Available Packages:
- 8-lead SOIC and 5-lead SOT-23 (24AA02E48/24AA02E64)
- 8-lead SOIC and 6-lead SOT-23 (24AA025E48/24AA025E64)
17. RoHS Compliant
18. Available for Extended Temperature Ranges:
- Industrial (I): -40°C to +85°C
- Automotive (E): -40°C to +125°C
3. FUNCTIONAL DESCRIPTION
The 24AA02XEXX supports a bidirectional, 2-wire bus and data transmission protocol. A device that sends data onto the bus is defined as transmitter, while a device receiving data is defined as a receiver. The bus has to be controlled by a master device which generates the Serial Clock (SCL), controls the bus access and generates the Start and Stop conditions, while the 24AA02XEXX works as slave. Both master and slave can operate as transmitter or receiver, but the master device determines which mode is activated.
