Details

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BUY FM24C04B-GTR. https://www.utsource.net/itm/p/8973945.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Operating Voltage	VCC		1.8		5.5	V
Standby Current	ICC-STANDBY	VCC = 5.5V	0.1	0.5	1	μA
Operating Current	ICC-OP	VCC = 5.5V, f = 400 kHz	3	5	7	mA
Write Time	tWR		5			ms
Data Retention			40			years
Memory Size			512			bits
I2C Bus Speed	f		100	400	1000	kHz
Operating Temperature	Toperating		-40		85	°C
Storage Temperature	Tstorage		-65		150	°C

Instructions for Use

1. Power Supply:

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

2. I2C Communication:

   • Connect the SDA (data) and SCL (clock) pins to the corresponding I2C lines on your microcontroller.
   • Use pull-up resistors (typically 4.7kΩ to 10kΩ) on both SDA and SCL lines to ensure proper communication.

3. Initialization:

   • Initialize the I2C bus with a clock speed up to 1000 kHz.
   • The device address is typically 0x50 (binary 1010000).

4. Reading Data:

   • Start the I2C transaction by sending a start condition.
   • Send the device address followed by the read/write bit (0 for write, 1 for read).
   • Send the memory address you want to read from.
   • Send a repeated start condition.
   • Send the device address again with the read bit set.
   • Read the data byte(s) from the device.
   • Send a stop condition to end the transaction.

5. Writing Data:

   • Start the I2C transaction by sending a start condition.
   • Send the device address followed by the write bit.
   • Send the memory address where you want to write data.
   • Send the data byte(s) to be written.
   • Send a stop condition to end the transaction.
   • Wait for the write time (tWR) of 5 ms before performing another operation.

6. Data Retention:

   • The device retains data for up to 40 years when powered off.

7. Temperature Considerations:

   • Operate the device within the temperature range of -40°C to 85°C for optimal performance.
   • Store the device in an environment between -65°C and 150°C.

8. Handling Precautions:

   • Handle the device with care to avoid static discharge, which can damage the component.
   • Follow standard ESD (Electrostatic Discharge) precautions during handling and installation.

9. Troubleshooting:

   • If communication fails, check the connections, pull-up resistors, and power supply.
   • Ensure the I2C bus is not overloaded with too many devices.
   • Verify that the device address and memory addresses are correct.

(For reference only)