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Utsource certified used parts
Utsource certified used parts provide the following guarantees:
1. Utsource will inspect the goods, including appearance inspection (no serious damage to the appearance), select qualified and honest suppliers, and ensure 98% qualification rate.
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Description
Real Time Clock
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FEATURES
● Drop-in replacement for IBM AT computer clock/calendar
● Pin compatible with the MC146818A
● 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, 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
● Selectable between Motorola and Intel bus timing
● Multiplex bus for pin efficiency
● Interfaced with software as 64 RAM locations
- 14 bytes of clock and control registers
- 50 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 122μs to 500 ms
- End of clock update cycle
DESCRIPTION
The DS1287 Real Time Clock is designed to be a direct replacement for the MC146818A. For a complete description of operating conditions,electrical and mechanical characteristics, bus timing, and pin descriptions see the DS12887 data sheet.
Preview of the first 3 pages of the data sheet
Some Part number from the same manufacture
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10000 buyer reviews from United States
Lauren Smith
Length of registration:7 years
The DS1287A integrated circuit from Utsource is a real-time clock chip with a built-in lithium battery backup. It offers a high degree of accuracy and reliability, with a temperature range of -40°C to +85°C, and a frequency accuracy of ±2.5ppm. It also features a wide range of programmable alarms and interrupts, making it a great choice for applications that require precise timing.
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03/17/2023
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Returns are normally accepted when completed within 60 days from the date of the parcel delivered.
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Warranty
All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
DS1287
DS1287 has several brands around the world that may have alternate names for DS1287 due to regional differences or acquisition. DS1287 may also be known as the following names:
BUYING OPTIONS
Stock Status: 10000
Minimum: 1
Total Price:
Unit Price:3.83600
UTSOURCE
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United States
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Stop production experts, we can provide a large number of electronic components that have been stopped production and are difficult to find, to facilitate the maintenance company
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