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M48T18-100MH1 - STMicroelectronics

Description: ■ Integrated ultra low power SRAM, real-time clock, power-fail control circuit, and battery ■ BYTEWIDE™ RAM-like clock access ■ BCD coded year, month, day, date, hours, minutes, and seconds ■ Typical clock accuracy of ±1 minute a month, at 25 °C ■ Automatic power-fail chip deselect and WRITE protection ■ WRITE protect VPFD = power-fail deselect voltage): – M48T08: VCC = 4.75 to 5.5 V; 4.5 V ≤ VPFD ≤ 4.75 V – M48T18/T08Y: VCC = 4.5 to 5.5 V; 4.2 V ≤ VPFD ≤ 4.5 V ■ Software controlled clock cal

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M48T18-100MH1 Details

  • Manufacturer Part Number:

    M48T18-100MH1

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    28

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.32.00.41

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    3

  • Memory IC Type:

    STANDARD SRAM

M48T18-100MH1 Frequently Asked Questions (FAQs)

  • The M48T18-100MH1 can operate from -40°C to +85°C, but it's recommended to use it within the -20°C to +70°C range for optimal performance.
  • The POR and VS functions are internally connected and ensure that the device is in a reset state during power-up. The VS function monitors the VCC voltage and keeps the device in reset until VCC reaches a minimum threshold (around 1.5V).
  • The VCCP pin is the power supply pin for the internal clock circuitry. It should be connected to the same power supply as the VCC pin, but it's recommended to add a decoupling capacitor (e.g., 100nF) between VCCP and GND to ensure noise reduction and stable operation.
  • To implement a BBR configuration, connect a battery to the VBAT pin, and ensure that the VCC pin is connected to a power supply that can be switched off. The device will automatically switch to battery power when VCC is removed, and the RAM contents will be preserved.
  • The recommended clock frequency for the M48T18-100MH1 is 100MHz, but it can operate up to 120MHz with a reduced voltage supply (e.g., 3.3V). However, it's essential to consult the datasheet for specific frequency and voltage combinations.

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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