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DS1746W-120+ - Analog Devices

Description: Maxim DS1746W-120+ Real Time Clock — Calendar, 128 x 8bit RAM 32-Pin EDIP 3.6 V

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DS1746W-120+ - Analog Devices - PCB symbol
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DS1746W-120+ - Analog Devices PCB footprint - Dual-In-Line Sockets - Dual-In-Line Sockets - EDIP_32
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DS1746W-120+ Details

  • Manufacturer Part Number:

    DS1746W-120+

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    N/A

  • Pin Count:

    32

  • Manufacturer Package Code:

    N/A

  • Country Of Origin:

    Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    2001-02-21

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Clock Frequency-Max:

    0.032 MHz

  • External Data Bus Width:

    8

  • Information Access Method:

    PARALLEL, DIRECT ADDRESS

  • Interrupt Capability:

    N

  • JESD-30 Code:

    R-PDIP-T32

  • JESD-609 Code:

    e3

  • Length:

    43.053 mm

  • Moisture Sensitivity Level:

    1

  • Number of Terminals:

    32

  • Operating Temperature-Max:

    70 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP32,.6

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    10.922 mm

  • Supply Voltage-Max:

    3.6 V

  • Supply Voltage-Min:

    3 V

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    NO

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Time-Min:

    SECONDS

  • Volatile:

    NO

  • Width:

    15.24 mm

  • uPs/uCs/Peripheral ICs Type:

    TIMER, REAL TIME CLOCK

DS1746W-120+ Frequently Asked Questions (FAQs)

  • A good PCB layout is crucial for the DS1746W-120+. Ensure a solid ground plane, keep the device away from high-frequency sources, and use a 4-layer board with a dedicated power plane. Also, follow the recommended pinout and component placement guidelines.
  • To prevent damage, ensure that the VCC supply is powered up before the VBAT supply. During power-down, turn off VBAT first, followed by VCC. This sequencing is critical to prevent back-powering the device.
  • The maximum allowed voltage on the VBAT pin is 3.6V. Exceeding this voltage can cause permanent damage to the device. Ensure that the battery voltage is within the recommended range to maintain device reliability.
  • Use a voltage divider circuit with a high-impedance input to monitor the battery voltage. Connect the VBAT pin to a voltage comparator or a microcontroller's ADC input to detect low battery voltage. Ensure the detection circuit is designed to handle the device's low-power mode.
  • Use a high-quality crystal oscillator with a load capacitance of 10pF to 20pF. Ensure the oscillator circuit is properly decoupled and shielded to minimize noise and interference. Follow the recommended crystal oscillator configuration guidelines in the datasheet.

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DS1746W-120+ Overview

Use the download button to access the DS1746W-120+ schematic symbol and PCB footprint.
To find more CAD model downloads similar to this part, try a partial part number search, like DS174, or try a keyword search, such as Timers or RTCs

About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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