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ISL1218IUZ - Renesas Electronics

Description: The ISL1218 device is a low power real time clock with timing and crystal compensation, clock/calendar, power fail indicator, periodic or polled alarm, intelligent battery backup switching and battery-backed user SRAM. The oscillator uses an external, low-cost 32. 768kHz crystal. The real time clock tracks time with separate registers for hours, minutes, and seconds. The device has calendar registers for date, month, year and day of the week. The calendar is accurate through 2099, with automatic leap year c

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ISL1218IUZ - Renesas Electronics - PCB symbol
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PCB Footprints
ISL1218IUZ - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - M8.118
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ISL1218IUZ - Renesas Electronics - 3D model - Small Outline Packages - M8.118
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ISL1218IUZ Details

  • Manufacturer Part Number:

    ISL1218IUZ

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    MSOP

  • Pin Count:

    8

  • Manufacturer Package Code:

    M8.118

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    4 Weeks

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • Clock Frequency-Max:

    0.032 MHz

  • Information Access Method:

    SERIAL(I2C)

  • JESD-609 Code:

    e3

  • Moisture Sensitivity Level:

    2

  • Peak Reflow Temperature (Cel):

    260

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    2.7 V

  • Supply Voltage-Nom:

    3 V

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Time@Peak Reflow Temperature-Max (s):

    30

  • uPs/uCs/Peripheral ICs Type:

    TIMER, REAL TIME CLOCK

ISL1218IUZ Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout in the application note AN1443, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize noise.
  • The ISL1218IUZ requires a specific power-up sequence to ensure proper initialization. Refer to the datasheet section 7.1, 'Power-Up Sequence', for the recommended power-up procedure.
  • The ISL1218IUZ can drive up to 1000pF of capacitive load on the output pins. However, it's recommended to limit the load capacitance to 100pF or less to ensure stable operation and minimize ringing.
  • Renesas provides a troubleshooting guide in the application note AN1444, which covers common issues and their solutions, including output voltage errors, oscillations, and noise issues.
  • The ISL1218IUZ is rated for operation up to 125°C, but it's essential to follow the recommended thermal management guidelines in the datasheet to ensure reliable operation. Additionally, consider using a heat sink or thermal pad to dissipate heat.

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ISL1218IUZ Overview

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