Details

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BUY FM25L256-PG https://www.utsource.net/itm/p/8156700.html

Parameter	Description	Value
Device Type	Non-Volatile Ferroelectric Random Access Memory (FRAM)	FM25L256-PG
Memory Density	256 Kbit (32 K x 8)
Operating Voltage	Supply voltage range	1.8V to 3.6V
Standby Current	Current consumption in standby mode	1 μA
Active Current	Current consumption during read/write operations	3 mA
Access Time	Time required for a memory access	70 ns
Write Cycle Time	Time required for write cycle	0 ns (No delay)
Endurance	Number of write cycles the device can endure	Unlimited
Data Retention	Duration data can be retained without power	>10 years
Temperature Range	Operating temperature range	-40°C to +85°C
Package Type	Package style	SOIC-8
Pin Configuration	Pin configuration	SPI

Instructions for Use:

1. Power Supply:

   • Connect VCC to a stable supply voltage between 1.8V and 3.6V.
   • Connect GND to the ground.

2. SPI Interface Connection:

   • Connect MISO (Master In Slave Out) to the microcontroller's MISO pin.
   • Connect MOSI (Master Out Slave In) to the microcontroller's MOSI pin.
   • Connect SCK (Serial Clock) to the microcontroller's clock pin.
   • Connect CS (Chip Select) to the microcontroller's chip select pin.

3. Initialization:

   • Ensure CS is held high when not communicating with the FRAM.
   • Before initiating any SPI communication, bring CS low.

4. Read Operation:

   • Send the Read command (0x03) followed by the address from which to read.
   • The FRAM will respond with the data starting from the specified address.

5. Write Operation:

   • Send the Write command (0x02) followed by the address where to start writing and then the data bytes.
   • Data is written immediately; no need for a write enable cycle.

6. Special Considerations:

   • Since it's FRAM, there is no need for a write pulse or delay after writes.
   • Be cautious about static electricity as it can damage the component.

7. Storage:

   • Store in a dry, cool place away from direct sunlight and sources of heat.

(For reference only)