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DESCRIPTION

The Microchip Technology Inc. 24LC01B and 24LC02B 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 2.5 volts with a standby and active currents of only 5 μA and 1 mA

respectively. The 24LC01B and 24LC02B also have page-write capability for up to 8 bytes of data. The 24LC01B and 24LC02B are available in the standard 8-pin DIP and an 8-pin surface mount SOIC package. The SOT-23 and TSSOP packages are available for the 24LC01B.

FEATURES

? Single supply with operation down to 2.5V

? Low power CMOS technology

- 1 mA active current typical

- 10 μA standby current typical at 5.5V

- 5 μA standby current typical at 3.0V

? Organized as a single block of

128 bytes (128 x 8) -1K or 256 bytes (256 x 8) -2K

? 2-wire serial interface bus, I2C? compatible

? 100 kHz (2.5V) and 400kHz (5.0V) 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

? 1,000,000 E/W cycles guaranteed

? Data retention > 200 years

? 8 pin DIP, SOIC, TSSOP* or SOT-23* package

? Available for temperature ranges

- Commercial (C): 0°C to +70°C

- Industrial (I): -40°C to +85°C