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DS1308 Datasheet PDF

Part Series:DS1308 Series
Category:Real Time Clocks
Description:Real Time Clock Serial 56Byte Clock/Calendar 8Pin uMAX
Document:DS1308U-18+ Datasheet PDF (17 Pages)

DS1308 Real Time Clocks Datasheet PDF

DS1308 Datasheet PDF Real Time Clocks

16 Pages
Maxim Integrated
Real Time Clock Serial 56Byte 8Pin uMAX T/R
16 Pages
Maxim Integrated
Real Time Clock Serial 56Byte 8Pin uMAX

DS1308U-33+ - Maxim Integrated Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
8 Pin
Supply Voltage (DC)
3.00V (min)
Case/Package
uMAX-8
Number of Positions
8 Position
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DS1308U-33+ - Maxim Integrated Function Overview

The DS1308U-33+ is a low current I2C RTC with 56byte NV RAM in 8 pin µSOP package. This serial real-time clock (RTC) is a full binary coded decimal (BCD) clock/calendar plus 56bytes of NV RAM. Address and data are transferred serially through an I2C interface. The clock/calendar provides seconds, minutes, hours, day, date, month and year information. The end of month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24 hour or 12 hour format with an AM/PM indicator. It has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply, maintaining time and date operation. It is used in office equipment (fax/printer, copier), telecommunications (router, switcher, server) and other (utility meter, vending machine, thermostat, modem).
Supply voltage range is 3V to 5.5V
Operating temperature range from -40°C to 85°C
Compatible with crystal ESR up to 100Kohm allows crystal to be optimized for cost & space
Low power operation extends battery backup run time, low timekeeping current of 250nA (typ)
Power fail trip point is 2.82V
Completely manages all timekeeping functions
56 byte, battery backed, general-purpose RAM with unlimited writes
Programmable square wave output signal
Simple serial port interfaces with most microcontrollers
UL recognized
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