DS1305E

Maxim Integrated DS1305E

Part Number:
DS1305E
Manufacturer:
Maxim Integrated
Ventron No:
3003732-DS1305E
Description:
IC RTC CLK/CALENDAR SPI 20-TSSOP
ECAD Model:
Datasheet:
DS1305E

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Part Overview
Description
The DS1305 is an integrated serial alarm real-time clock (RTC) that manages all timekeeping functions. It counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap-year compensation valid up to 2100. Additionally, it features a 96-byte, battery-backed NV RAM for data storage.

Features
Real-time clock with leap-year compensation
96-byte, battery-backed NV RAM
Two time-of-day alarms
Standard serial port interfaces (SPI or 3-wire)
Burst mode for reading/writing successive addresses
Multiple power supply pins for primary and backup power
Optional trickle charge output to backup supply
2.0V to 5.5V operation
20-pin TSSOP package
Optional industrial temperature range (-40°C to 85°C)
UL recognized

Applications
Timekeeping in embedded systems
Data logging
Alarm systems
Industrial control
Medical devices
Consumer electronics
Specifications
Maxim Integrated DS1305E technical specifications, attributes, parameters and parts with similar specifications to Maxim Integrated DS1305E .
  • Factory Lead Time
    6 Weeks
  • Contact Plating
    Tin
  • Mount
    Surface Mount
  • Mounting Type
    Surface Mount
  • Package / Case
    20-TSSOP (0.173, 4.40mm Width)
  • Number of Pins
    20
  • Weight
    190.990737mg
  • Operating Temperature
    0°C~70°C
  • Packaging
    Tube
  • Published
    2002
  • JESD-609 Code
    e3
  • Feature
    Alarm, Leap Year, NVSRAM, Trickle-Charger
  • Pbfree Code
    yes
  • Part Status
    Active
  • Moisture Sensitivity Level (MSL)
    1 (Unlimited)
  • Number of Terminations
    20
  • ECCN Code
    EAR99
  • Subcategory
    Timer or RTC
  • Technology
    CMOS
  • Voltage - Supply
    2V~5.5V
  • Terminal Position
    DUAL
  • Peak Reflow Temperature (Cel)
    260
  • Supply Voltage
    5V
  • Terminal Pitch
    0.65mm
  • Frequency
    32.8kHz
  • Reflow Temperature-Max (s)
    30
  • Base Part Number
    DS1305
  • Pin Count
    20
  • Number of Outputs
    1
  • Voltage
    5V
  • Interface
    SPI
  • Memory Size
    96B
  • Logic Function
    Clock
  • Time Format
    HH:MM:SS (12/24 hr)
  • Date Format
    YY-MM-DD-dd
  • Current - Timekeeping (Max)
    25.3μA~81μA @ 2V~5V
  • Time-Min
    SECONDS
  • Interrupt Capability
    Y
  • Voltage - Supply, Battery
    2V~5.5V
  • Volatile
    YES
  • Information Access Method
    SERIAL, 3-WIRE
  • Height
    900μm
  • Length
    6.5mm
  • Width
    4.4mm
  • Radiation Hardening
    No
  • REACH SVHC
    No SVHC
  • RoHS Status
    ROHS3 Compliant
  • Lead Free
    Lead Free
Certification
  • ISO 9001
  • ISO 13485
  • ISO 45001
  • ASA
  • ESD
  • DUNS
  • SMTA
  • ROHS

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