DS1305E
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- Mfr.Part #
- DS1305E
- Manufacturer
- Analog Devices, Inc.
- Package / Case
- 20-TSSOP (0.173, 4.40mm Width)
- Datasheet
- Download
- Description
- IC RTC CLK/CALENDAR SPI 20-TSSOP
- Stock
- 47,185
- In Stock ：
- 47,185
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- Manufacturer :
- Analog Devices, Inc.
- Product Category :
- Real Time Clocks
- Voltage :
- 5V
- Date Format :
- YY-MM-DD-dd
- Type :
- Clock/Calendar
- Width :
- 4.4mm
- Number of Outputs :
- 1
- Voltage - Supply :
- 2V~5.5V
- Base Part Number :
- DS1305
- Operating Temperature :
- 0°C~70°C
- JESD-609 Code :
- e3
- Terminal Pitch :
- 0.65mm
- Mount :
- Surface Mount
- Package / Case :
- 20-TSSOP (0.173, 4.40mm Width)
- Factory Lead Time :
- 6 Weeks
- Lead Free :
- Lead Free
- Pbfree Code :
- yes
- Number of Terminations :
- 20
- Interface :
- SPI
- Contact Plating :
- Tin
- Information Access Method :
- SERIAL, 3-WIRE
- Pin Count :
- 20
- Length :
- 6.5mm
- Published :
- 2002
- Logic Function :
- Clock
- Frequency :
- 32.8kHz
- ECCN Code :
- EAR99
- Weight :
- 190.990737mg
- Packaging :
- Tube
- Supply Voltage :
- 5V
- Interrupt Capability :
- Y
- RoHS Status :
- ROHS3 Compliant
- Feature :
- Alarm, Leap Year, NVSRAM, Trickle-Charger
- Mounting Type :
- Surface Mount
- Time@Peak Reflow Temperature-Max (s) :
- 30
- Volatile :
- yes
- Voltage - Supply, Battery :
- 2V~5.5V
- Time Format :
- HH:MM:SS (12/24 hr)
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Terminal Position :
- Dual
- Current - Timekeeping (Max) :
- 25.3μA~81μA @ 2V~5V
- Height :
- 900μm
- REACH SVHC :
- No SVHC
- Time-Min :
- SECONDS
- Radiation Hardening :
- No
- Number of Pins :
- 20
- Memory Size :
- 96B
- Peak Reflow Temperature (Cel) :
- 260
- Datasheets
- DS1305E
Real Time Clocks Analog Devices, Inc. DS1305E Overview
The Real Time Clocks Analog Devices, Inc. DS1305E is a high-performance integrated circuit specifically designed for timekeeping applications in a wide range of digital electronics. Engineered by Analog Devices, a leader in semiconductor design, this real-time clock/calendar provides full binary-coded decimal (BCD) clock/calendar functionality plus 31 bytes of battery-backed Static Random Access Memory (SRAM) via a simple serial interface. Optimized for effective power management with a precision temperature-compensated circuit, the DS1305E ensures reliable timekeeping in applications requiring year, month, day, weekday, hours, minutes, and seconds data.
DS1305E Features
- SPI interface for easy integration into existing digital systems.
- Dual programmable time-of-day alarms increase flexibility in time-sensitive applications.
- Temperature-compensated oscillator ensures high accuracy across varying temperatures.
- Automatic power-fail detect and switch circuitry protects timekeeping operation during power interruptions.
- 31 x 8 battery-backed general-purpose RAM enhances data storage capabilities.
DS1305E Applications
- Embedded Systems: Utilized for maintaining accurate time and date, facilitating time-stamped event logging and system diagnostics.
- Consumer Electronics: Integral in devices requiring real-time clocks, such as digital cameras, radios, and smart home devices, to maintain accurate operational timing.
- Office Electronics: Key component in office equipment like fax machines and printers to track and log tasks based on time and date settings.
- Telecommunications: Employed in network hardware such as routers and switches for time-stamping data packets crucial for data integrity and security.
- Medical Devices: Used in medical equipment that requires time synchronization for monitoring and logging patient data accurately.
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