Details

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BUY 24C02 https://www.utsource.net/itm/p/12598561.html

Parameter	Description	Min	Typ	Max	Unit
Capacity	Memory Size	-	-	256	Kbits
Organization	Memory Array	-	-	32768 x 8	-
Supply Voltage (VCC)	Operating Range	1.8	-	5.5	V
Operating Temperature	Industrial Range	-40	-	85	掳C
Standby Current (ISB)	@ VCC = 5.5V	-	1	5	渭A
Active Current (ICC)	@ VCC = 5.5V, 100 kHz	-	3	5	mA
Write Cycle Time (tWC)	-	-	-	5	ms
Page Write Time (tPW)	-	-	-	5	ms
Data Retention	-	-	-	100	years
Endurance	-	-	-	1,000,000	cycles

Instructions for Use

1. Power Supply:

   • Ensure the supply voltage (VCC) is within the range of 1.8V to 5.5V.
   • Connect the ground (GND) pin to the system ground.

2. Communication Protocol:

   • The 24C02 uses the I2C (Inter-Integrated Circuit) protocol for communication.
   • The I2C bus consists of two lines: SDA (Serial Data) and SCL (Serial Clock).

3. Addressing:

   • The 24C02 has a 7-bit address. The default address is 1010000 (0x50 in hexadecimal).
   • The last three bits of the address can be set using the A0, A1, and A2 pins to allow up to 8 devices on the same I2C bus.

4. Reading Data:

   • To read data from the EEPROM:
     • Send a start condition.
     • Send the device address with the R/W bit set to 0 (write).
     • Send the memory address where you want to start reading.
     • Send a repeated start condition.
     • Send the device address with the R/W bit set to 1 (read).
     • Read the data bytes.
     • Send a stop condition.

5. Writing Data:

   • To write data to the EEPROM:
     • Send a start condition.
     • Send the device address with the R/W bit set to 0 (write).
     • Send the memory address where you want to start writing.
     • Send the data bytes.
     • Send a stop condition.
     • Wait for the write cycle to complete (up to 5ms).

6. Page Write:

   • The 24C02 supports page writes, allowing up to 8 bytes to be written in a single operation.
   • Ensure that the write does not cross a page boundary (each page is 8 bytes).

7. Data Retention and Endurance:

   • The data retention is guaranteed for up to 100 years.
   • The endurance is rated for up to 1,000,000 write cycles.

8. Handling:

   • Handle the device with care to avoid static discharge.
   • Ensure proper decoupling capacitors are used near the power supply pins to reduce noise and improve stability.

9. Storage:

   • Store the device in a dry environment to prevent moisture damage.

(For reference only)