BQ3287MT - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

BQ3287MT
Manufacturer

TI
ChipWorker Part#

CW550231909
Package

DIP
Description

Real Time Clock Multiplexed 114Byte Clock/Calendar/Alarm/Timer/Interrupt 24Pin DIP Module
Documentation

Datasheet

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BQ3287MT Specifications

Attribute	Attribute Value

Part Number	BQ3287MT
Manufacturer	TI
ChipWorker Part#	CW550231909
Documentation	Datasheet
Number of Pins	24 Pin
Case/Package	DIP
	expand all
Product Lifecycle Status	Unknown
RoHS	RoHS Compliant

Product Description

General Description
The CMOS bq3287/bq3287A is a low-power microprocessor peripheral providing a time-of-day clock
and 100-year calendar with alarm features and battery operation. Other features include three
maskable interrupt sources, square wave output, and 114 bytes of gen eral nonvolatile storage.
Features
➤Direct clock/calendar replacement for IBM® AT-compatible computers and other applications
➤Functionally compatible with the DS1287/DS1287A and MC146818A
➤114 bytes of general nonvolatile storage
➤Integral lithium cell and crystal
➤160 ns cycle time allows fast bus operation
➤Selectable Intel or Motorola bus timing
➤14 bytes for clock/calendar and control
➤BCD or binary format for clock and calendar data
➤Time of day in seconds, minutes, and hours
- 12- or 24-hour format
- Optional daylight saving adjustment
➤Calendar in day of the week, day of the month, months, and years with automatic leap-year adjust
ment
➤Programmable square wave out put
➤Three individually maskable in terrupt event flags:
- Periodic rates from 122µs to 500 ms
- Time-of-day alarm once per second to once per day
- End-of-clock update cycle
➤Better than one minute per month clock accuracy

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- Carefully tested and packaged by ChipWorker
- Vacuum packed
- Anti-static packaging
- Anti-vibration foam
- Income quality control (IQC), 800+ qualified distributors.
- Authorities test the chip to ensure the quality, authenticity and safety of your device.
- Decapsulation control
- X-ray inspection
- XRF inspection
- Electrical testing
- Surface testing

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