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BQ3265LDSS, BQ3285, BQ3285ECSS

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MFG:Texas Instruments  Category:Integrated Circuits (ICs)  Package Cooled:TI  D/C:07+

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BQ3265LDSS, BQ3285, BQ3285ECSS Datasheet download

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Part Number: BQ3265LDSS

Category: Integrated Circuits (ICs)

MFG: Texas Instruments

Package Cooled: TI

D/C: 07+

Description: IC REAL TIME CLOCK 24-QSOP

 

 
 
 
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About BQ3285

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Datasheet: BQ3285

File Size: 566717 KB

Manufacturer: TI [Texas Instruments]

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About BQ3285

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Datasheet: BQ3285

File Size: 566717 KB

Manufacturer: TI [Texas Instruments]

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  • Moko Technology Ltd   China
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  • BQ3285EP

  • Pack: DIP D/C: 01+& Qty: 400  Adddate: 2024-11-25
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    Contact: Ms.SuzyLin   MSN:suzy880607@hotmail.com
    Tel: 00-852-30658316
    Fax: 00-852-30656675
    (0)
  • BQ3285ES

  • Vendor: TI Pack: SOP D/C: 00+& Qty: 406 Note: I have stock with originalpack   Adddate: 2024-11-25
  • Inquire Now
  • Shenzhen Viga Electronics Co.,Ltd   China
    Contact: Ms.Suepan   MSN:tatiana0124@hotmail.com
    Tel: 86-755-33090962 33090963
    Fax: 86-755-33090960
    (0)
  • BQ3285ES

  • Vendor: TI D/C: 08+& Qty: 2000 Note: New & original/stock  Adddate: 2024-11-25
  • Inquire Now
  • HK Yiding Electronics co,.ltd   China
    Contact: Mr.LISIMON   MSN:LFRZH888@HOTMAIL.COM
    Tel: 086-755-83467300
    Fax: 086-755-82518824
    (14)
  • BQ3285ES

  • Pack: SOP D/C: 00+& Qty: 245  Adddate: 2024-11-25
  • Inquire Now
  • ChengFeng (HK) Limited   Hong
    Contact: Ms.SuzyLin   MSN:suzy880607@hotmail.com
    Tel: 00-852-30658316
    Fax: 00-852-30656675
    (0)

About BQ3285ECSS-

PDF/DataSheet Download

Datasheet: BQ3285ECSS-

File Size: 851709 KB

Manufacturer: TI [Texas Instruments]

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BQ3285 General Description

The CMOS bq3285 is a low-power microprocessor peripheral providing a time-of-day clock and 100-year calendar with alarm features and batery operation. Other features inlude three maskable interrupt ources, square wave output, and 114 bytesofgeneralnonvolatilestorage.


The bq3285 write-protects the clock,calendar, and storage registers during power failure. A backup battery then maintains data and operates the clockandcalendar.


The bq3285 is a fully compatible real-time clock for IBM AT compatible computers and other applications. The only external components are a 32.768kHz crystal and a backup battery.

BQ3285 Maximum Ratings

Symbol Parameter Value Unit Conditions
VCC DC voltage applied on VCC relative to VSS -0.3 to 7.0 V
VT DC voltage applied on any pin excluding VCC
relative to VSS
-0.3 to 7.0 V VT VCC + 0.3
TOPR Operatingtemperature 0 to +70 °C Commercial
TSTG Storage temperature -55 to +125 °C
TBIAS Temperature under bias -40 to +85 °C
TSOLDER Soldering temperature 260 °C For 10 seconds

BQ3285 Features

Direct clock/calendar replace-ment for IBM AT-compatible computers and other applications
Functionally compatible with the DS1285
- Closely matches MC146818A pin configuration
114 bytes of general nonvolatile storage
160ns cycle time allows fast bus operation
Selectable Intel or Motorola bus timing
Less than 0.5A load under bat-tery operation
14 bytes for clock/calendar and control BCD or binary format for clock and calendar data
Calendar in day of the week,day of the month,months,and years,with automatic leap-year adjust-ment
Time of day in seconds,minutes,and hours
   - 12- or 24-hour format
   - Optional daylight saving adjustment
Programmable square wave out-put
Three individually maskable interrupt event flags:
   - Periodic rates from 122s to 500ms
   - Time-of-day alarm once per second to once per day
   - End-of-clock update cycle
24-pin plastic DIP or SOIC

BQ3285 Connection Diagram

BQ3285ECSS Parameters

Technical/Catalog InformationBQ3285ECSS
VendorTexas Instruments
CategoryIntegrated Circuits (ICs)
Date FormatYY-MM-DD-dd
Time FormatHH:MM:SS (12/24 hr)
Voltage - Supply4.5 V ~ 5.5 V
InterfaceParallel
Memory Size242B
Package / Case24-QSOP (SSOP)
PackagingTube
TypeClock/Calendar/NVSRAM
Operating Temperature0°C ~ 70°C
Drawing Number296; 4073301-4; DBQ; 24
Lead Free StatusContains Lead
RoHS StatusRoHS Non-Compliant
Other Names BQ3285ECSS
BQ3285ECSS
296 2593 5 ND
29625935ND
296-2593-5

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