DS1315数据手册集成电路（IC）的实时时钟规格书PDF

描述 Description

The DS1315 Phantom Time Chip is a combination of a CMOS timekeeper and a nonvolatile memory controller. In the absence of power, an external battery maintains the timekeeping operation and provides power for a CMOS static RAM. The watch keeps track of hundredths of seconds, seconds, minutes, hours, day, date, month, and year information. The last day of the month is automatically adjusted for months with less than 31 days, including leap year correction. The watch operates in one of two formats: a 12-hour mode with an AM/PM indicator or a 24-hour mode. The nonvolatile controller supplies all the necessary support circuitry to convert a CMOS RAM to a nonvolatile memory. The DS1315 can be interfaced with either RAM or ROM without leaving gaps in memory.

特性 Features

• Real-Time Clock Keeps Track of Hundredths of Seconds, Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years
• Automatic Leap Year Correction Valid Up to 2100
• No Address Space Required to Communicate with RTC
• Provides Nonvolatile Controller Functions for Battery Backup of SRAM
• Supports Redundant Battery Attachment for High-Reliability Applications
• Full ±10% VCC Operating Range
• +3.3V or +5V Operation
• Industrial (–40°C to +85°C) Operating Temperature Ranges Available

简介

DS1315属于集成电路（IC）的实时时钟。由制造生产的DS1315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。