DESCRIPTION
The Microchip Technology Inc. 24AA01 and 24AA02 are 1K bit and 2K bit Electrically Erasable PROMs. The devices are organized as a single block of 128 x 8-bit or 256 x 8-bit memory with a two wire serial interface. Low-voltage design permits operation down to 1.8 volts with standby and active currents of only 3 µA and 1 mA, respectively. The 24AA01 and 24AA02 also have page write capability for up to 8 bytes of data. The 24AA01 and 24AA02 are available in the standard 8-pin DIP and 8-pin surface mount SOIC packages.

FEATURES
• Single supply with operation down to 1.8V
• Low power CMOS technology
    - 1 mA active current typical
    - 10 µA standby current typical at 5.5V
    - 3 µA standby current typical at 1.8V
• Organized as a single block of 128 bytes (128 x 8) or 256 bytes (256 x 8)
• 2-wire serial interface bus, I2C compatible
• Schmitt trigger, filtered inputs for noise suppression
• Output slope control to eliminate ground bounce
• 100 kHz (1.8V) and 400 kHz (5V) compatibility
• Self-timed write cycle (including auto-erase)
• Page-write buffer for up to 8 bytes
• 2 ms typical write cycle time for page-write
• Hardware write protect for entire memory
• Can be operated as a serial ROM
• ESD protection > 3,000V
• 10,000,000 ERASE/WRITE cycles guaranteed on 24AA01
• 1,000,000 ERASE/WRITE cycles guaranteed on 24AA02
• Data retention > 200 years
• 8-pin DIP or SOIC package
• Available for extended temperature ranges
    - Commercial (C): 0°C to +70°C
    - Industrial (I) -40°C to +85°C