DS1646中文资料非易失时钟RAM数据手册ADI规格书

特性 Features

• Integrates NV SRAM, Real-Time Clock, Crystal, Power-Fail Control Circuit and Lithium Energy Source
• Clock Registers are Accessed Identically to the Static RAM. These Registers are Resident in the Eight Top RAM Locations
• Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power
• BCD-Coded Year, Month, Date, Day, Hours,Minutes, and Seconds with Leap Year Compensation Valid Up to 2100
• Power-Fail Write Protection Allows for ±10% VCC Power Supply Tolerance
• DS1646 only (DIP Module)Standard JEDEC Bytewide 128k x 8 RAM Pinout
• DS1646P Only (PowerCap Module Board)
• Surface Mountable Package for Direct Connection to PowerCap Containing Battery and Crystal
• Replaceable Battery (PowerCap)
• Power-Fail Output
• Pin-for-Pin Compatible with Other Densities of DS164xP Timekeeping RAM

简介

DS1646属于集成电路（IC）的实时时钟。由制造生产的DS1646实时时钟实时时钟 (RTC) 为几乎所有需要保持精确时间的电子设备提供时间和/或日期信息。时钟类型有二进制计数器、时钟/日历/监控器、历时计时器、幻时钟芯片、便携式系统控制器、温度记录器、时间事件记录器和计时器时钟外设。其包含 2 B 至 2 MB 不等的存储器，接口选项有 I2C、并行、串行、SPI、1 线式、2 线式、3 线式和 4 线式。