DS1486 Overview
The DS1486 contains a lithium energy source and a quartz crystal which eliminate the need for any external circuitry. Data contained within 128K by 8-bit memory and the timekeeping registers can be read or written in the same manner as bytewide static RAM. The timekeeping registers are located in the first 14 bytes of memory space.
DS1486 Key Features
- Totally nonvolatile with over 10 years of operation in the absence of power
- Watchdog timer restarts an out-of-control processor
- Alarm function schedules real-time related .. activities such as system wakeup
- Programmable interrupts and square wave output
- All registers are individually addressable via the address and data bus
- Interrupt signals active in power-down mode
- DS1486P
- DS9034PCX
- Interrupt Output A (open drain) INTB (INTB)
- Interrupt Output B (open drain) A0-A16