Elec-component
M44C890E
M44C890E

 

M44C890E

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Category: Elec-component Available (Qty:9999999)
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Description

BUY M44C890E https://www.utsource.net/itm/p/12596267.html

Parameter Description Value Unit
Device Type Non-Volatile SRAM with I2C Interface - -
Operating Voltage (Vcc) Supply Voltage Range 1.7 to 5.5 V
Standby Current (Icc) Quiescent Current at 3.0V, 25°C 1.0 μA
Active Current (Icc) Current during Read/Write Operation at 3.0V, 25°C 3.0 mA
Data Retention Time Data Retention at 85°C 10 years
Memory Size Total Memory Capacity 8 Kbits
Organization Memory Organization 1024 x 8 bits
Access Time Typical Access Time at 3.0V, 25°C 0.35 μs
Operating Temperature Range Temperature Range for Normal Operation -40 to +85 °C
Storage Temperature Range Temperature Range for Storage -65 to +150 °C
Package Type Available Package Options SOIC-8, TSSOP-8 -
I2C Bus Speed Maximum I2C Bus Speed 400 kHz

Instructions for Using M44C890E

  1. Power Supply:

    • Connect the Vcc pin to a power supply within the range of 1.7V to 5.5V.
    • Connect the GND pin to ground.

  2. I2C Communication:

    • The device uses the I2C protocol for communication.
    • Connect the SDA (Serial Data) and SCL (Serial Clock) pins to the corresponding lines on your I2C bus.
    • Ensure pull-up resistors are connected to the SDA and SCL lines to Vcc.

  3. Address Configuration:

    • The device has a fixed I2C address of 0xA0 (1010000b).
    • If multiple devices are used, ensure they have unique addresses or use address selection pins if available.

  4. Read Operation:

    • Start Condition: Initiate a start condition on the I2C bus.
    • Send Device Address: Send the device address (0xA0) followed by a read bit (0x01).
    • Read Data: The device will send data byte(s) on the SDA line.
    • Stop Condition: End the read operation with a stop condition.

  5. Write Operation:

    • Start Condition: Initiate a start condition on the I2C bus.
    • Send Device Address: Send the device address (0xA0) followed by a write bit (0x00).
    • Write Memory Address: Send the memory address where data is to be written.
    • Write Data: Send the data byte(s) to be written to the specified memory address.
    • Stop Condition: End the write operation with a stop condition.

  6. Standby Mode:

    • To reduce power consumption, the device can be placed in standby mode by not initiating any I2C transactions.
    • The device will automatically return to active mode when a new transaction is initiated.

  7. Data Retention:

    • The device retains data for up to 10 years at 85°C.
    • For optimal data retention, avoid exposing the device to extreme temperatures outside the operating range.

  8. Handling Precautions:

    • Handle the device with care to avoid static discharge.
    • Ensure proper soldering techniques to prevent damage to the device.

For more detailed information, refer to the datasheet provided by the manufacturer.

(For reference only)

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