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Details about  New DS1687 DS1687-5 5V Real-Time Clock 9936b2 112227

New DS1687 DS1687-5 5V Real-Time Clock 9936b2 112227
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99.9% Positive feedback
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rooksystemsgroup

Item Information

Item condition:
New
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More than 10 available / 60 sold
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4 watchers
 
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60 sold
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Item location:
Houston, Texas, United States
 
Ships to:
United States and many other countries | See details
Delivery:
Between Thu. Jul. 24 and Mon. Jul. 28 to 20147 Estimated by eBay FAST 'N FREE  help icon for Estimated delivery date - opens a layer
Payments:
PayPal , Bill Me Later  |  See payment details
International shipping and import charges paid to Pitney Bowes Inc. Learn More- opens in a new window or tab
Returns:
14 days money back or item exchange, buyer pays return shipping See details
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eBay item number:
160493100474
Seller assumes all responsibility for this listing.
Last updated on  Oct 15, 2013 11:18:01 PDT  View all revisions

Item specifics

Condition:
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition
 

rooksystemsgroup

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FEATURES

Incorporates Industry-Standard DS1287 PC Clock

plus Enhanced Features Such as: Y2K Compliant

+3V or +5V Operation

64-Bit Silicon Serial Number

Power-Control Circuitry Supports System

Power-On from Date/Time Alarm or Key

Closure

32kHz Output for Power Management

Crystal-Select Bit Allows RTC to Operate with

6pF or 12.5pF Crystal

SMI Recovery Stack

242 Bytes Battery-Backed NV RAM

Auxiliary Battery Input

RAM Clear Input

Century Register

Date Alarm Register

Compatible with Existing BIOS for Original

DS1287 Functions

Available as Chip (DS1685) or Stand-Alone

Encapsulated DIP (EDIP) with Embedded

Battery and Crystal (DS1687)

Timekeeping Algorithm Includes Leap-Year

Compensation Valid Through 2099

Underwriters Laboratory (UL) Recognized

APPLICATIONS

Embedded Systems

Utility Meters

Security Systems

Network Hubs, Bridges, and Routers

 

 

 

DETAILED DESCRIPTION

The DS1685/DS1687 are real-time clocks (RTC) designed as successors to the industry-standard DS1285,

DS1385, DS1485, and DS1585 PC RTCs. These devices provide the industry-standard DS1285 clock function with

either +3.0V or +5.0V operation. The DS1685 also incorporates a number of enhanced features including a silicon

serial number, power-on/off control circuitry, 242 bytes of user NV SRAM, and 32.768kHz output for sustaining

power management activities.

The DS1685/DS1687 power-control circuitry allows the system to be powered on by an external stimulus such as a

keyboard or by a time and date (wake-up) alarm. The PWR output pin can be triggered by one or either of these

events, and can be used to turn on an external power supply. The PWR pin is under software control, so that when

a task is complete, the system power can then be shut down.

The DS1685 is a clock/calendar chip with the features described above. An external crystal and battery are the

only components required to maintain time-of-day and memory status in the absence of power. The DS1687

incorporates the DS1685 chip, a 32.768kHz crystal, and a lithium battery in a complete, self-contained timekeeping

EDIP. The entire unit is fully tested at Maxim such that a minimum of 10 years of timekeeping and data retention in

the absence of VCC is guaranteed



Tax - SALES TAX is applicable to buyers in Texas.
 
Freight - Unless otherwise stated in the item description freight and insurance will be ground service, prepaid and added to your bid total. We will ship within 1-3 business days upon confirmed receipt of payment depending on the item, weight and destination. Rook Systems Group ships within the United States and to Canada only, please allow for delivery within 3-10 business days. If you wish to have your items shipped 2nd day or 3rd day please contact us for a quote. Packaging will meet or exceed insurance minimum requirements. 

Communication - Hours are Monday through Friday 9:00 A.M to 5:00 P.M CST.

Returns - Claims for damaged product must be reported to Rook Systems Group within 48 hours of receipt. You must contact customer service for a Return Merchandise Authorization number (RMA) before returning product. A 20% restocking fee will be charged on any return without an RMA number, as well as returns for buyer's remorse, abuse or refusal to take delivery.  Contact customer service via email in the event that a product fails within the warranty period. Exchanges require proper authorization.  Items not received by Rook Systems Group within 7 days of the RMA issue date will not be accepted. Refunds/exchanges are subject to availability of similar products.

Questions and answers about this item

No questions or answers have been posted about this item.




00775
Seller assumes all responsibility for this listing.

Shipping and handling

Item location: Houston, Texas, United States
Shipping to: United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, Korea, South, Indonesia, Taiwan, South Africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi Arabia, Ukraine, United Arab Emirates, Qatar, Kuwait, Bahrain, Croatia, Republic of, Malaysia, Turkey
Estimated sales tax
Seller charges sales tax for items shipped to: TX*(8.25%).
* Tax applies to subtotal + S&H for these states only

Return policy

After receiving the item, contact seller within
Refund will be given as
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14 days
Money back or item exchange (buyer's choice)
Buyer pays return shipping

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