Details

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BUY 25AA02E48I/SN https://www.utsource.net/itm/p/12610130.html

Parameter	Description
Part Number	25AA02E48I/SN
Manufacturer	Microchip Technology
Type	Serial EEPROM
Memory Size	2 Kbit (256 x 8)
Interface	SPI
Supply Voltage (Vcc)	1.8V to 5.5V
Operating Temperature	-40掳C to +85掳C
Package Type	SOIC-8
Pin Count	8
Data Retention	100 years
Write Cycles	1,000,000
Access Time	5 ms
Standby Current	1 渭A (max)
Active Current	3 mA (max)

Instructions for Use

1. Power Supply:

   • Connect Vcc to a power supply within the range of 1.8V to 5.5V.
   • Ground GND pin.

2. SPI Interface Connection:

   • Connect the CS (Chip Select), SI (Serial Input), SCK (Serial Clock), and SO (Serial Output) pins to the corresponding SPI lines on your microcontroller or processor.

3. Initialization:

   • Ensure that the CS pin is set high when not communicating with the device.
   • Set CS low to initiate communication.

4. Writing Data:

   • To write data, first send the Write Enable command (WREN).
   • Send the WRITE instruction followed by the address and data bytes.
   • Wait for the write cycle to complete before initiating another write operation.

5. Reading Data:

   • Send the READ instruction followed by the starting address.
   • The device will output the data starting from the specified address.

6. Protection:

   • Use the Write Protect (WP) pin to prevent accidental writes by setting it low.
   • For normal operation, leave WP floating or tie it high.

7. Handling:

   • Handle with care as static electricity can damage the component.
   • Follow proper ESD (Electrostatic Discharge) precautions during handling and installation.

8. Storage:

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

(For reference only)