Details

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BUY DS1218 https://www.utsource.net/itm/p/112369.html
Nonvolatile Controller

Parameter	Description	Min	Typ	Max	Unit
Supply Voltage (VCC)	Operating voltage range	4.75	-	5.25	V
Standby Current	Current consumption in standby mode	-	100	-	μA
Active Current	Current consumption during active operation	-	300	-	μA
Temperature Range	Operating temperature range	-40	-	85	°C
Data Retention Time	Time data is retained without power	-	10	-	years
Write Cycle Endurance	Number of write cycles before failure	-	1,000,000	-	cycles
Read Cycle Endurance	Number of read cycles before failure	-	Unlimited	-	cycles
Programming Time	Time required to program the device	-	10	-	ms

Instructions for Using the DS1218

1. Power Supply:

   • Connect the VCC pin to a stable 5V power supply within the range of 4.75V to 5.25V.
   • Ensure that the GND pin is connected to the ground.

2. Standby Mode:

   • To enter standby mode, set the chip select (CS) pin high.
   • The device will consume approximately 100 μA in this mode.

3. Active Mode:

   • To activate the device, set the CS pin low.
   • The device will consume approximately 300 μA in this mode.

4. Temperature Considerations:

   • The device operates reliably within the temperature range of -40°C to 85°C.
   • Avoid exposing the device to temperatures outside this range to prevent damage.

5. Data Retention:

   • The DS1218 retains data for up to 10 years without power.
   • Regularly back up critical data to ensure data integrity.

6. Write Cycles:

   • The device can withstand up to 1,000,000 write cycles before potential failure.
   • Monitor the number of write operations to avoid exceeding this limit.

7. Read Cycles:

   • The device supports unlimited read cycles.
   • There is no need to limit the number of read operations.

8. Programming:

   • The programming time for the device is approximately 10 milliseconds.
   • Ensure that the device is not powered down or reset during this period to avoid data corruption.

9. Communication Protocol:

   • Use the appropriate communication protocol (e.g., SPI) to interface with the DS1218.
   • Refer to the specific protocol documentation for detailed command sequences and timing requirements.

10. Handling and Storage:

    • Handle the device with care to avoid static discharge and physical damage.
    • Store the device in a dry, cool place when not in use.

(For reference only)