DS1305EN+T&R The DS1305EN+T&R is a serial alarm real-time clock IC from Analog Devices. It features a clock/calendar function, 96 bytes of NV RAM, and an SPI interface.
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DS1305EN+T&R

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The DS1305EN+T&R is a serial alarm real-time clock IC from Analog Devices. It features a clock/calendar function, 96 bytes of NV RAM, and an SPI interface.
✓ Total Stock: 10,000 pcs

DS1305EN+T&R Available from 1 distributor

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DS1305EN+T&R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Date Format
Features
Interface
Lead Spacing
Memory Size
Mounting Type
Operating Temperature
Supplier Device Package
Tape & Reel
Time Format
Type
Voltage

DS1305EN+T&R Description

Short technical summary and product information.

The DS1305EN+T&R by Analog Devices is a serial alarm real-time clock (RTC) IC designed to manage all timekeeping functions. It counts seconds, minutes, hours, date, month, day of the week, and year, with leap-year compensation valid up to 2100. The device includes 96 bytes of battery-backed NV RAM for data storage and two programmable time-of-day alarms.

 

This RTC supports standard serial port interfaces, including SPI modes 1 and 3, and a standard 3-wire interface. It operates over a voltage range of 2.0V to 5.5V and features dual-power supply pins for primary and backup power, along with an optional trickle charge output. The operating temperature range is -40°C to +85°C, making it suitable for a wide range of applications.

 

The DS1305EN+T&R comes in a compact 20-pin TSSOP package, minimizing required space on printed circuit boards. Its features make it ideal for applications requiring accurate timekeeping and data logging.

DS1305EN+T&R Quick Information

Product Type: Real Time Clock
Canonical Name: DS1305EN+T&R Serial Alarm Real-Time Clock
Subcategory: Clock/Calendar

DS1305EN+T&R Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

DS1305EN+T&R Features

  • Manages all timekeeping functions accurately.
  • Includes 96 bytes of battery-backed NV RAM.
  • Supports SPI and 3-wire serial interfaces.
  • Operates from 2.0V to 5.5V supply voltage.
  • Wide -40°C to +85°C industrial temperature range.

DS1305EN+T&R Applications

  • Ideal for embedded system timekeeping.
  • Suitable for data logging applications.
  • Used in battery-backed systems.
  • Supports alarm functions for event triggers.
  • Applications requiring precise date and time.

DS1305EN+T&R FAQs

6 frequently asked questions generated from this part’s specifications.
What are the key timekeeping functions of the DS1305EN+T&R?

The DS1305EN+T&R counts seconds, minutes, hours, date of the month, month, day of the week, and year, with leap-year compensation valid up to 2100.

How much NV RAM is available on the DS1305EN+T&R?

The DS1305EN+T&R provides 96 bytes of battery-backed NV RAM for data storage.

What serial interfaces does the DS1305EN+T&R support?

The DS1305EN+T&R supports SPI modes 1 and 3, as well as a standard 3-wire interface.

What is the operating voltage range for the DS1305EN+T&R?

The DS1305EN+T&R operates from 2.0V to 5.5V.

What is the operating temperature range of the DS1305EN+T&R?

The DS1305EN+T&R has an operating temperature range of -40°C to +85°C.

What package type is the DS1305EN+T&R supplied in?

The DS1305EN+T&R is supplied in a 20-TSSOP package.

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