24LC02B-I/ST

Series:	--
Packaging:	Tube
Part Status:	Active
Memory Type:	Non-Volatile
Memory Format:	EEPROM
Technology:	EEPROM
Memory Size:	2Kb (256 x 8)
Clock Frequency:	400kHz
Write Cycle Time - Word, Page:	5ms
Access Time:	900ns
Memory Interface:	I²C
Voltage - Supply:	2.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	8-TSSOP
Base Part Number:	24LC02B

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24LC02B-I/ST Memory Application Field and Working Principle

In recent years, reliable, low cost, and small footprint devices have helped shape modern digital electronic design. The 24LC02B-I/ST memory device is an example of such a device, being a serial electrically erasable programmable read only memory (EEPROM). This device is small in size, yet packs tremendous performance and reliability in a single small chip.The 24LC02B-I/ST is an 8-pin, serial electrically erasable programmable read only memory (EEPROM) chip. It is available in a variety of package styles, ranging from a small surface mount component to a large DIP component. It has a range of features, such as a write-protect pin, power-on reset protection, and a high-reliability signature register used for device data protection.The 24LC02B-I/ST memory is used for a variety of applications, such as storing system configuration data, security information, user preferences, and personalization data. It can also be used for simple data logging purposes. It is well suited for embedded system applications and is commonly used in smart appliances, home automation systems, POS terminals, industrial controllers, and medical instruments.The 24LC02B-I/ST EEPROM has a typical memory cycle time of 5ms or less, a high endurance of up to 100,000 cycles, and can retain data up to 10 years. It uses a serial 2-Wire bus protocol, consisting of a clock (SCL) and a data line (SDA). It draws very little current withStand-by mode, making it suitable for battery-powered applications and allows data to be written or read in blocks or bytes.The working principle of the 24LC02B-I/ST memory is based on a two-wire serial memory interface, which is controlled by an internal state machine. It uses an 8-Bit address and length indicator transferring data from the internal storage to the external bus. The write cycle takes multiple clock cycles, depending on size of the data to be written.The beginning of a write cycle starts with a start condition and the address of the memory. The next byte of data will be received by the device and written to the internal address which was transmitted during the start condition. A master device acknowledges the reception and sends the next byte of data.The 24LC02B-I/ST continues to write and acknowledge bytes of data until the requested number of bytes has been transferred or the 24LC02B-I/ST detected a Stop condition. When all of the data bytes have been transferred, the 24LC02B-I/ST sends out an acknowledgement and the write cycle is complete. For read cycles, the process is essentially the same but in reverse. The internal address and number of bytes sent over the bus are used to read data from the EEPROM.Overall, the 24LC02B-I/ST memory device is a reliable, low cost, and small footprint device, suitable for a variety of applications. Its two-wire serial memory interface, fast write/read cycles, and high endurance make it an ideal choice for storing system configuration data, security information, user preferences, and record-keeping. This device is a no-brainer for embedded system applications, such as in home automation systems, POS terminals, industrial controllers, and medical instruments.

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