Details

---

BUY FM25L04B-GTR https://www.utsource.net/itm/p/4456293.html
4Kb Serial 3V F-RAM Memory

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating	1.8	-	3.6	V
Standby Current	Icc	Vcc = 3.6V	-	0.5	-	μA
Active Current	Icc	Vcc = 3.6V, f = 4MHz	-	3	-	mA
Data Retention Time	Trd	Vcc = 1.8V to 3.6V	-	-	70	Years
Write Cycle Time	Twc		0	-	5	ms
Page Write Time	Tpw		0	-	5	ms
Read Access Time	Trac		0	-	0.25	μs
Write Protect Input High	Vih		2.0	-	Vcc	V
Write Protect Input Low	Vil		0	-	0.8	V

Instructions for FM25L04B-GTR

1. Power Supply Requirements:

   • Ensure the supply voltage (Vcc) is within the range of 1.8V to 3.6V.

2. Current Consumption:

   • The device consumes minimal current in standby mode, typically around 0.5μA at 3.6V.
   • In active mode, with a clock frequency of 4MHz, the current consumption is approximately 3mA.

3. Data Retention:

   • Data can be retained for up to 70 years under operating voltages ranging from 1.8V to 3.6V.

4. Write Operations:

   • Each write cycle should not exceed 5ms.
   • Writing a page also requires no more than 5ms.

5. Read Operations:

   • The read access time is very fast, not exceeding 0.25μs.

6. Write Protection:

   • To enable write protection, apply a voltage between 2.0V and Vcc to the WP pin.
   • For disabling write protection, set the WP pin voltage between 0V and 0.8V.

7. Handling Precautions:

   • Always handle the device with care to avoid static damage.
   • Ensure all connections are secure and correct before applying power.

For detailed specifications and additional information, refer to the official datasheet provided by the manufacturer.

(For reference only)