Position: Home  > All Categories> Integrated Circuits (ICs) > bq3285

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 ...

product image

bq3285 Picture
See larger image
SeekIC No. : 004301292 Detail

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 ...

bq3285 Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
bq3285
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2024/12/22

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



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


Pinout

Connection Diagram


Specifications

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



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.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
Filters
PICO2205A
PICO2204A
Connectors, Interconnects
ASP-134488-01
WM4078-ND
Tools
TCP202
G084SN05 V.3
Discrete Semiconductor Products
T508N12TOF
MUR20040
Resistors
A101G
3006P-1-205LF
Integrated Circuits (ICs)
TA8435H
1MB12-140
View more