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- Delivery charge: Inside Dhaka-60 Taka, outside Dhaka-99 Taka
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DS12C885 RTC
৳ 225.00 Original price was: ৳ 225.00.৳ 220.00Current price is: ৳ 220.00.
Model : DIC-00105
Supplier : Techbazar.com.bd
Techbazar.com.bd, Bangladesh
The DS12R885 is a functional drop-in replacement for the DS12885 real-time clock (RTC). The device pro-vides an RTC/calendar, one time-of-day alarm, three maskable interrupts with a common interrupt output, a programmable square wave, and 114 bytes of battery-backed static RAM. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including correction for leap years. It also oper-ates in either 24-hour or 12-hour format with an AM/PM indicator. A precision temperature-compensated circuit monitors the status of VCC. If a primary power failure is detected, the device automatically switches to a back-up supply. The VBACKUPpin supports a rechargeable battery or a super cap and includes an integrated, always enabled trickle charger. The DS12R885 is accessed through a multiplexed byte-wide interface, which supports both Intel and Motorola modes. The DS12CR887 and DS12R887 integrate the DS12R885 die with a crystal and battery.
Features
• Trickle-Charge Capability for a Rechargeable Battery or Super Cap
• Selectable Intel or Motorola Bus Timing
• RTC Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap-Year Compensation to 2100
• Interrupt Output with Three Independently Maskable Interrupt Flags
• Time-of-Day Alarm is Once-per-Second to Once-per-Day
• Periodic Rates from 122µs to 500ms
• End-of-Clock Update Cycle Flag
• 14 Bytes of Clock and Control Registers
• 114 Bytes of General-Purpose Battery-Backed NV RAM with Clear Input
• Programmable Square-Wave Output
• Automatic Power-Fail Detect and Switch Circuitry
• +5.0V or +3.3V Operation
• Industrial Temperature Range
• DS12CR887 Encapsulated DIP (EDIP) Module with Integrated Battery and Crystal
• DS12R887 BGA Module Surface-Mountable Package with Integrated Crystal and Rechargeable Battery

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