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DS1558Y+ - Analog Devices

Description: Real Time Clock Watchdog Clocks with NV RAM Control

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DS1558Y+ - Analog Devices PCB footprint - Quad Flat Packages - Quad Flat Packages - C48+1
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DS1558Y+ - Analog Devices  - 3D model - Quad Flat Packages - C48+1
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DS1558Y+ Details

  • Manufacturer Part Number:

    DS1558Y+

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    48-TQFP-7X7X1.0

  • Package Description:

    7 X 7 MM, 1 MM HEIGHT, ROHS COMPLIANT, TQFP-48

  • Pin Count:

    48

  • Manufacturer Package Code:

    48-TQFP-7X7X1.0

  • 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:

    2002-08-01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    8.5

  • Clock Frequency-Max:

    0.032 MHz

  • External Data Bus Width:

    8

  • Information Access Method:

    PARALLEL, DIRECT ADDRESS

  • Interrupt Capability:

    Y

  • JESD-30 Code:

    S-PQFP-G48

  • JESD-609 Code:

    e3

  • Length:

    7 mm

  • Moisture Sensitivity Level:

    1

  • Number of Terminals:

    48

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TFQFP

  • Package Equivalence Code:

    TQFP48,.35SQ

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK, THIN PROFILE, FINE PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 mm

  • Supply Voltage-Max:

    3.63 V

  • Supply Voltage-Min:

    2.97 V

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Time-Min:

    SECONDS

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

    30

  • Volatile:

    NO

  • Width:

    7 mm

  • uPs/uCs/Peripheral ICs Type:

    TIMER, REAL TIME CLOCK

DS1558Y+ Frequently Asked Questions (FAQs)

  • The recommended power-up sequence is to apply VCC first, followed by VBAT. This ensures that the internal voltage regulator is powered up correctly and prevents any potential latch-up conditions.
  • To ensure accurate timekeeping, it's essential to use a high-quality crystal oscillator with a frequency tolerance of ±20 ppm or better. Additionally, the device should be operated within the recommended temperature range, and the battery voltage should be maintained above 2.5V.
  • The VBAT pin is used to connect a battery that powers the device's real-time clock (RTC) and SRAM during power-down or battery-backup mode. It should be connected to a battery with a voltage range of 2.5V to 5.5V, and a capacitor (typically 10uF) should be connected between VBAT and GND to filter out noise.
  • The DS1558Y+ uses a 3-wire serial interface (SCLK, SDATA, and RST) to communicate with external devices. The device can be connected to a microcontroller or other digital systems using a standard SPI or Microwire interface, with the RST pin used to reset the device.
  • The maximum clock frequency that can be used with the DS1558Y+ is 1 MHz. Exceeding this frequency may result in incorrect operation or damage to the device.

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DS1558Y+ 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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