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Details for DS1308U-3+ by Maxim Integrated
Electronic & Electrical Components > Semiconductors - ICs > Clocks Timing & Frequency Management
RTC I2C SERIAL 5.5V USOP-8
DS1308U-3+ image

DS1308U-3+ by Maxim Integrated

RTC I2C SERIAL 5.5V USOP-8
Features
56-Byte, Battery-Backed, General-Purpose RAM with Unlimited Writes
Automatic Power-Fail Detect and Switch Circuitry
Compatible with Crystal ESR Up to 100ku2126 Allows a Crystal to be Optimized for Cost and Space
Completely Manages All Timekeeping Functions
External Clock Source for Synchronization Clock Reference (e.g., 32kHz, 50Hz/60Hz Powerline, GPS 1PPS)
I2C Serial Interface
Industrial Temperature Range: -40u00baC to +85u00baC Supports Operation in a Wide Range of Applications
Low Timekeeping Current of 250nA (typ)
Low-Power Operation Extends Battery Backup Run Time
Programmable Square-Wave Output Signal
Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2400
Simple Serial Port Interfaces with Most Microcontrollers
Underwriters Laboratories (ULu00ae) Recognized
Part Information
DS1308U-3+ image
RoHS Compliant
Description
The DS1308 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes 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 the month date is auto- matically 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. The DS1308 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply, maintaining time and date operation.
Specifications
Date Format:
Day
Clock Format:
HH
Clock IC Type:
RTC
Supply Voltage Min:
2.7V
Supply Voltage Max:
5.5V
Clock IC Case Style:
µSOP
No. of Pins:
8Pins
IC Interface Type:
I2C
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (15-Jan-2018)
Alternate Descriptions
RTC, I2C, SERIAL, 5.5V, USOP-8; Date Format:Day; Date; Month; Year; Clock Format:HH:MM:SS; Clock IC Type:RTC; Supply Voltage Min:2.7V; Supply Voltage Max:5.5V; Clock IC Case Style:µSOP; No. of Pins:8Pins; IC Interface Type:I2C; RoHS Compliant: Yes Newark Electronics
Real Time Clock Serial 56Byte 8-Pin uMAX Avnet America
Real Time Clock Serial 56Byte 8-Pin uMAX Avnet Europe
Real Time Clock Serial 56Byte 8-Pin uMAX Avnet Asia