DS1344D-33+T&R

DS1344D-33+T&R

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DS1344D-33+T&R
IC RTC CLK/CALENDAR SPI 14TDFN
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$5.92

Price update:a months ago
Available in stock: 8755
45
Serves customers in 45 countries
1000+
Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years
Analog Devices Inc./Maxim Integrated

Analog Devices Inc./Maxim Integrated

Maxim Integrated has amalgamated with Analog Devices, imparting an augmented repertoire of superlative mixed-signal and power governance innovations, fostering clientele triumph across diverse sectors. This amalgamation begets a spectrum of resolutions for surmounting the utmost intricate quandaries, spanning from direct current to the expanse of 100 gigahertz, encompassing miniscule nanowatt realms to robust kilowatt domains, spanning the sensor continuum to the ethereal expanse of cloud. Delve deeper into Analog Devices' enriched assemblage on their product dossier.

View All Product from Analog Devices Inc./Maxim Integrated
DS1344D-33+T&R Products
The DS1343/DS1344D-33+ low-current real-time clocks (RTCs) are timekeeping devices that provide an extremely low standby current, permitting longer life from a backup supply source. The devices also support high-ESR crystals, broadening the pool of usable crystals for the devices. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either 24-hour or 12-hour format with an active-low AM/PM indicator. Address and data are transferred serially through an SPI or 3-wire interface. Two programmable time-of-day alarms are provided. Each alarm can generate an interrupt on a combination of seconds, minutes, hours, and day. Don't-care states can be inserted into one or more fields if it is desired for them to be ignored for the alarm condition. The time-of-day alarms can be programmed to assert two different interrupt outputs, or they can be combined to assert one common interrupt output. Both interrupt outputs operate when the device is powered by either VCC or VBAT. The devices are available in a lead-free/RoHS-compliant, 20-pin TSSOP or 14-pin TDFN package, and support a -40°C to +85°C extended industrial temperature range.

Feature

  • Low Timekeeping Current of 250nA (typ)
  • Compatible with Crystal ESR Up to 100kΩ
  • Versions Available to Support Either 6pF or 12.5pF Crystals
  • RTC Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Valid Through 2099
  • Power-Fail and Switch Circuitry
  • Three Operating Voltages
    • 1.8V ±5%
    • 3.0V ±10%
    • 3.3V ±10%
  • Trickle-Charge Capability
  • Maintain Time Down to 1.15V (typ)
  • Support Motorola SPI Modes 1 and 3, or Standard 3-Wire Interface
  • Burst Mode for Reading/Writing Successive Addresses in Clock/RAM
  • 96-Byte Battery-Backed NV RAM for Data Storage
  • Two Time-of-Day Alarms with Two Interrupt Outputs
  • Industrial Temperature Range
  • 20-Pin TSSOP or 14-Pin TDFN Package

Applications

  • Embedded Timestamping
  • Handheld Devices
  • Medical
  • Telematics

Product Attributes

TYPE DESCRIPTION Select all
Time Format HH:MM:SS (12/24 hr)
Memory Size 96B
Supplier Device Package 14-TDFN (3x3)
Type Clock/Calendar
Package / Case 14-WFDFN Exposed Pad
Programmable Not Verified
Mounting Type Surface Mount
Product Status Active
Operating Temperature -40°C ~ 85°C
Package Tape & Reel (TR)
Current - Timekeeping (Max) 120µA ~ 160µA @ 3.63V ~ 5.5V
Voltage - Supply, Battery 1.3V ~ 5.5V
Voltage - Supply 3V ~ 5.5V
Interface SPI
Date Format YY-MM-DD-dd
Features Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger

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$5.92

Price update:a months ago
Available in stock: 8755
Analog Devices Inc./Maxim Integrated

Analog Devices Inc./Maxim Integrated

Maxim Integrated has amalgamated with Analog Devices, imparting an augmented repertoire of superlative mixed-signal and power governance innovations, fostering clientele triumph across diverse sectors. This amalgamation begets a spectrum of resolutions for surmounting the utmost intricate quandaries, spanning from direct current to the expanse of 100 gigahertz, encompassing miniscule nanowatt realms to robust kilowatt domains, spanning the sensor continuum to the ethereal expanse of cloud. Delve deeper into Analog Devices' enriched assemblage on their product dossier.

View All Product from Analog Devices Inc./Maxim Integrated

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