Qdatasheet_Logo    Integrated circuits, Transistor, Semiconductors Search and Free Datasheet PDF Download Site
Part Number :
Home >>> Dallas >>> DS12B887 Datasheet

DS12B887

  

Datasheet PDF

Part NameDS12B887 Dallas
Dallas Semiconductor -> Maxim Integrated Dallas
DescriptionReal Time Clock
PDF Download   
DS12B887 image

DESCRIPTION
The DS12B887 Real Time Clock plus RAM is designed to be a direct replacement for the DS1287A or DS12887A. The DS12B887 is identical in form, fit, and function to the DS1287A or DS12887A, with the exception of RCLR, and has an additional 64 bytes of general purpose RAM.

FEATURES
• Drop-in replacement for IBM AT computer clock/calendar
• Pin compatible with the MC146818B and DS1287
• Totally nonvolatile with over 10 years of operation in the absence of power
• Self-contained subsystem includes lithium, quartz, and support circuitry
• Counts seconds, minutes, hours, days, day of the week, date, month, and year with leap year compensation
• Binary or BCD representation of time, calendar, and alarm
• 12- or 24-hour clock with AM and PM in 12-hour mode
• Daylight Savings Time option
• Multiplex bus for pin efficiency
• Interfaced with software as 128 RAM locations
    – 14 bytes of clock and control registers
    – 114 bytes of general purpose RAM
• Programmable square wave output signal
• Bus-compatible interrupt signals (IRQ)
• Three interrupts are separately software-maskable and testable
    – Time-of-day alarm once/second to once/day
    – Periodic rates from 122 µs to 500 ms
    – End of clock update cycle

 

Other manufacturer searches related to DS12B887

RTC-58321 Real time clock module(4-bit I/O CONNECTION REAL TIME CLOCK MODULE) View Unspecified
Q42724211XXXX00 Real time clock module(4-bit REAL TIME CLOCK MODULE) View Unspecified
NJU6359 SERIAL I/O REAL TIME CLOCK WITH WAKE-UP OUTPUT for EXTERNAL CLOCK View Japan Radio Corporation
DS12C887A Real Time Clock View Unspecified
RF5C62 REAL-TIME CLOCK View RICOH Co.,Ltd.
UM82C8167 Real-Time Clock(RTC) View UMC Corporation
TC8521AM Real Time Clock II View Toshiba
RF5C15 REAL-TIME CLOCK View RICOH Co.,Ltd.
PCA8565 Real time clock/calender View Philips Electronics
M41T60 Serial access real-time clock View STMicroelectronics

Key Word

System  Voltage  Analog  Audio  Axial  Battery  Bipolar  Bridge  Camera  Chip  Clock  Color  Connector  Control  Controller  Converter  Counter  Crystal  Decoder  Digital 

Share Link : Dallas

All Rights Reserved © qdatasheet.com 2015 - 2018  [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]