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ISL12022IBZ - Renesas Electronics

Description: The ISL12022 device is a low power real time clock with an embedded Temp sensor for oscillator compensation, clock/calendar, power fail, low battery monitor, brownout indicator, single periodic or polled alarms, intelligent battery-backup switching, Battery Reseal™ function and 128 bytes of 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,

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ISL12022IBZ - Renesas Electronics - PCB symbol
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PCB Footprints
ISL12022IBZ - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - (8 LD SOIC)
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ISL12022IBZ - Renesas Electronics - 3D model - Small Outline Packages - (8 LD SOIC)
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ISL12022IBZ Details

  • Manufacturer Part Number:

    ISL12022IBZ

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOICN

  • Package Description:

    SOIC-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    M8.15

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    18 Weeks

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    6

  • Clock Frequency-Max:

    0.032 MHz

  • Information Access Method:

    SERIAL(I2C)

  • Interrupt Capability:

    Y

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Terminals:

    8

  • On Chip Data RAM Width:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • RAM (words):

    128

  • Seated Height-Max:

    1.75 mm

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    2.7 V

  • Supply Voltage-Nom:

    3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time-Min:

    SECONDS

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

    30

  • Volatile:

    YES

  • Width:

    3.9 mm

  • uPs/uCs/Peripheral ICs Type:

    TIMER, REAL TIME CLOCK

ISL12022IBZ Frequently Asked Questions (FAQs)

  • A good PCB layout for the ISL12022IBZ involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the crystal oscillator. Additionally, it's recommended to use a low-ESR capacitor for the VCC pin and to minimize the length of the clock signal traces.
  • To ensure the accuracy of the RTC, it's essential to use a high-quality crystal oscillator with a low ppm tolerance, maintain a stable power supply, and minimize temperature variations. Additionally, the device should be calibrated periodically to account for any drift in the crystal frequency.
  • The maximum frequency of the clock output of the ISL12022IBZ is 32.768 kHz, which is the typical frequency used for real-time clock applications.
  • Yes, the ISL12022IBZ is suitable for battery-powered devices due to its low power consumption of 1.2 μA in the timekeeping mode. However, it's essential to consider the power consumption of the entire system and ensure that the device is properly powered down when not in use.
  • The ISL12022IBZ can be interfaced with a microcontroller using a serial interface such as I2C or SPI. The device provides a 400 kHz I2C interface and a 2 MHz SPI interface, allowing for easy communication with a microcontroller.

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ISL12022IBZ Overview

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