DS1340, DS1340C

I²C RTC,带有涓流充电器

I²C实时时钟,带有涓流充电器,可通过软件进行校准


点击查看特定型号的库存状况。

说明

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.
DS1340、DS1340C:典型工作电路 DS1340、DS1340C:典型工作电路 放大+

关键特性

  • 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

应用

  • 医疗装置
  • 销售终端机(POS)装置
  • 便携式仪表
  • 电信

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

技术资料

设计指南 5791
设计指南 5413
应用笔记 5383 实现LED照明智能化
参考原理图 5320
应用笔记 4427
应用笔记 4247
应用笔记 3816
应用笔记 3572 有关内置晶体封装的常见问题
应用笔记 3517 估算涓流充电实时时钟的超级电容备份时间
应用笔记 701
应用笔记 505
应用笔记 504
应用笔记 95
应用笔记 82
应用笔记 58

其它资源

RTC计算器
超级电容计算器

工具和模型

  • DS1340 IBIS模型
  • 产品可靠性报告: DS1340.pdf 
    申请可靠性报告: DS1340C 
    型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

    质量管理体系 >
    环境管理体系 >

     
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    相关资料


    MAX31343
    ±5ppm, I2C Real-Time Clock with Integrated MEMS Oscillator

    • Highly Accurate RTC with Integrated MEMS Resonator Completely Manages All Timekeeping Functions
    • 64-Byte RAM for User Data Storage
    • Simple Serial Interface Connects to Most Microcontrollers


    类型 编号 标题
    设计指南 5791
    设计指南 5413
    应用笔记 5383 实现LED照明智能化
    参考原理图 5320
    应用笔记 4427
    应用笔记 4247
    应用笔记 3816
    应用笔记 3572 有关内置晶体封装的常见问题
    应用笔记 3517 估算涓流充电实时时钟的超级电容备份时间
    应用笔记 701
    应用笔记 505
    应用笔记 504
    应用笔记 95
    应用笔记 82
    应用笔记 58