NEW & ORIGINAL I2C Serial EEPROM 24LC02B-I/P

1K/2K 2.5V I2C™ Serial EEPROM

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°

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.

PACKAGE TYPES                                           

BLOCK DIAGRAM

Maximum Ratings*

V_CC...................................................................................7.0V

All inputs and outputs w.r.t. V_SS ............... -0.6V to VCC +1.0V

Storage temperature .....................................-65°C to +150°C

Ambient temp. with power applied ................-65°C to +125°C

Soldering temperature of leads (10 seconds) .............+300°C

ESD protection on all pins.............................................> 3 kV

*Notice: Stresses above those listed under “Maximum ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

PIN FUNCTION TABLE

FUNCTIONAL DESCRIPTION

The 24LC01B/02B supports a bi-directional two wire bus and data transmission protocol. A device that sends data onto the bus is defined as transmitter, and a device receiving data as 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 24LC01B/02B works as slave. Both master and slave can operate as transmitter or receiver but the master device determines which mode is activated.