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DS1321S+ - Analog Devices

Description: DS1321S+, SRAM Controller Unit Surface Mount, -40 to +85°C, 4.5 to 5.5V, 16-Pin, SOIC, 6V, ±10%, Yes, 20ns

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DS1321S+ - Analog Devices - PCB symbol
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PCB Footprints
DS1321S+ - Analog Devices PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - 16 PDIP
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3D Models
DS1321S+ - Analog Devices - 3D model - Dual-In-Line Packages - 16 PDIP
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DS1321S+ Details

  • Manufacturer Part Number:

    DS1321S+

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    16-SOIC_N-150_MIL

  • Package Description:

    0.150 INCH, SOIC-16

  • Pin Count:

    16

  • Manufacturer Package Code:

    16-SOIC_N-150_MIL

  • 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:

    1999-11-19

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    BATTERY MONITOR

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e3

  • Length:

    9.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    1.5 mA

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

DS1321S+ Frequently Asked Questions (FAQs)

  • The recommended layout and routing for the DS1321S+ involves keeping the crystal oscillator circuitry away from noisy digital signals, using a ground plane to reduce noise, and minimizing the length of the crystal oscillator traces. A 4-layer PCB with a dedicated ground plane is recommended. Additionally, the datasheet provides a recommended layout and routing diagram that should be followed.
  • To ensure the accuracy of the DS1321S+ over temperature, it is recommended to use a high-quality crystal oscillator with a low temperature coefficient, and to calibrate the device during manufacturing. Additionally, the device can be calibrated during operation using the CAL pin. It is also important to follow proper PCB design and layout practices to minimize thermal gradients and noise.
  • The maximum frequency deviation of the DS1321S+ over temperature is ±5 ppm from 0°C to 70°C, and ±10 ppm from -40°C to 0°C and 70°C to 85°C. This deviation is due to the inherent characteristics of the crystal oscillator and can be minimized by using a high-quality crystal and following proper PCB design and layout practices.
  • The DS1321S+ can be interfaced with a microcontroller using a 3-wire serial interface (SCLK, SDATA, and RST). The microcontroller can read and write data to the DS1321S+ using a simple serial protocol. The datasheet provides a detailed description of the interface protocol and timing diagrams.
  • The DS1321S+ has a power-on reset (POR) circuit that resets the device to its default state when the power supply voltage rises above 1.5V. The POR circuit ensures that the device starts up in a known state and that the oscillator is enabled. The POR circuit also ensures that the device is reset when the power supply voltage drops below 1.5V.

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DS1321S+ Overview

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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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