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Maxim产品 - DS1340|DS1340C介绍

DS1340|DS1340C - I²C RTC，带有涓流充电器

DS1340|DS1340C是Maxim美信半导体公司的一款1-Wire器件产品，DS1340|DS1340C是I²C RTC，带有涓流充电器，本站介绍了DS1340|DS1340C的封装应用图解、特点和优点、功能等，并给出了与DS1340|DS1340C相关的Maxim元器件型号供参考。

DS1340|DS1340C - I²C RTC，带有涓流充电器 - 1-Wire器件 - I²C实时时钟，带有涓流充电器，可通过软件进行校准 - 美信半导体

产品概述

The DS1340 is a real-time clock (RTC)/calendar that is pin compatible and functionally equivalent to the ST M41T00, including the software clock calibration. The device additionally provides trickle-charge capability on the VBACKUP pin, a lower timekeeping voltage, and an oscillator STOP flag. Block access of the register map is identical to the ST device. Two additional registers, which are accessed individually, are required for the trickle charger and flag. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. A built-in power-sense circuit detects power failures and automatically switches to the backup supply. The device is programmed serially through an I²C bidirectional bus.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Enhanced Second Source for the ST M41T00
  • Completely Manages All Timekeeping Functions
  • RTC Counts Seconds, Minutes, Hours, Day, Date,Month, and Year
  • Software Clock Calibration
  • Oscillator Stop Flag
  • Low-Power Operation Extends Battery Backup Run Time
  • Low Timekeeping Voltage Down to 1.3V
  • Automatic Power-Fail Detect and Switch Circuitry
  • Trickle-Charge Capability
  • Three Operating Voltage Ranges (1.8V, 3V, and 3.3V) Supports Systems Using Legacy and Modern Power Buses
  • Surface-Mount Package with an Integrated Crystal (DS1340C) Saves Additional Space and Simplifies Design
  • Simple Serial Port Interfaces with Most Microcontrollers
  • Fast (400kHz) I2C Interface
  • 8-Pin µSOP or SO Package Minimizes Required Space
  • Underwriters Laboratories (UL®) Recognized
    • 热门应用
  • 医疗装置
  • 销售终端机(POS)装置
  • 便携式仪表
  • 电信
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