AT25640AN-10SU-2.7 SOP8 ATMEL
AT25640AN-10SU-2.7 SOP8 ATMEL

 

AT25640AN-10SU-2.7 SOP8 ATMEL

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Description

BUY AT25640AN-10SU-2.7 SOP8 ATMEL https://www.utsource.net/itm/p/11546296.html

Parameter Description Value
Device Type Serial EEPROM 256 Kbit (32K x 8)
Package SOP (Small Outline Package) 8-Pin
Operating Voltage Range Supply Voltage (VCC) 2.7 V to 5.5 V
Operating Temperature Range Junction Temperature (TJ) -40°C to +85°C
Data Retention Data Retention Time 100 years
Write Cycle Endurance Number of Write Cycles per Byte 1,000,000 cycles
Page Size Page Size for Sequential Write Operations 32 bytes
Access Time Typical Access Time 5 μs
Write Time Typical Write Time (Byte) 5 ms
Standby Current Standby Current (VCC = 5.5 V) 1 μA
Active Current Active Current (VCC = 5.5 V) 3 mA
Serial Interface Communication Protocol SPI (Serial Peripheral Interface)
Pin Configuration Pin 1: VCC, Pin 2: SI, Pin 3: SCK, Pin 4: /CS, Pin 5: /WP,
Pin 6: /HOLD, Pin 7: SO, Pin 8: GND

Instructions for Use:

  1. Power Supply:

    • Connect VCC (Pin 1) to the supply voltage (2.7 V to 5.5 V).
    • Connect GND (Pin 8) to the ground.

  2. Serial Interface Connections:

    • SI (Pin 2): Serial Input (Master to Slave).
    • SCK (Pin 3): Serial Clock.
    • /CS (Pin 4): Chip Select (active low).
    • /WP (Pin 5): Write Protect (active low). Connect to VCC to disable write protection.
    • /HOLD (Pin 6): Hold/Suspend (active low). Connect to VCC to disable hold/suspend.
    • SO (Pin 7): Serial Output (Slave to Master).

  3. Initialization:

    • Ensure that /CS is high when not communicating with the device.
    • Pull /CS low to select the device for communication.

  4. Read Operation:

    • Send the Read command (0x03) followed by the address of the first byte to be read.
    • The device will output the data starting from the specified address.

  5. Write Operation:

    • Send the Write Enable command (0x06) to enable writing.
    • Send the Write command (0x02) followed by the address and the data to be written.
    • Wait for the write cycle to complete (typically 5 ms).

  6. Write Protect:

    • To prevent accidental writes, pull /WP low. This will lock the device from any write operations.

  7. Hold/Suspend:

    • To pause ongoing communication, pull /HOLD low. This will suspend the current operation until /HOLD is released.

  8. Error Handling:

    • Monitor the status of the device using the Status Register (read with command 0x05) to check for any errors or write-in-progress conditions.

  9. Power Management:

    • To reduce power consumption, ensure that /CS is high when the device is not in use, putting it into standby mode.

For detailed specifications and additional commands, refer to the AT25640AN-10SU-2.7 datasheet provided by Atmel.

(For reference only)

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